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Smarter testing Java code with Spock Framework

Smarter testing Java code with Spock Framework

Spock Framework is increasingly used to create automatic tests for production code written in Java. Thanks to a DSL based on Groovy language Spock allows to create more compact constructions with much better readability.

During my presentation I will show number of advanced and less known features, the use of which can simplify testing our code even more. I will present also a few new features which officially became available in recently released version 1.0.

This will NOT be a presentation about Spock basics. Nevertheless thanks to its natural clarity even people new to Spock should not have problems to follow and benefit.

Marcin Zajączkowski

April 20, 2015
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  1. Smarter testing Java code
    with Spock Framework
    Including changes in Spock 1.0
    Marcin Zajączkowski @SolidSoftBlog http://blog.solidsoft.info/
    Warszawa, 20th April 2015

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  2. About me
    Marcin Zajączkowski @SolidSoftBlog http://blog.solidsoft.info/

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  3. 2 interesting companies
    Marcin Zajączkowski @SolidSoftBlog http://blog.solidsoft.info/

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  4. Agenda
    Why I like Spock?
    Less know, but cool Spock features
    New and noteworthy in Spock 1.0
    Spock tricks
    Marcin Zajączkowski @SolidSoftBlog http://blog.solidsoft.info/

    View Slide

  5. Why idea for this presentation?
    JUnit/TestNG + Mockito + AssertJ work...
    ... but Spock brings testing to another level
    Integrates seamlessly with production Java code
    Since version 1.0 provides even more useful features
    Marcin Zajączkowski @SolidSoftBlog http://blog.solidsoft.info/

    View Slide

  6. Why idea for this presentation?
    JUnit/TestNG + Mockito + AssertJ work...
    ... but Spock brings testing to another level
    Integrates seamlessly with production Java code
    Since version 1.0 provides even more useful features
    Encourage more people to using Spock
    In even more effective way
    Marcin Zajączkowski @SolidSoftBlog http://blog.solidsoft.info/

    View Slide

  7. Why I like Spock?
    Consist and readable test code
    Tests as specification by default
    All Groovy magic available to help
    Embedded mocking framework
    Although Mockito can be used if preferred
    Highly extensible
    Compatible with tools supporting JUnit
    Marcin Zajączkowski @SolidSoftBlog http://blog.solidsoft.info/

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  8. Simple specification in Spock
    given/when/then (or expect) are required to compile code
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    Marcin Zajączkowski @SolidSoftBlog http://blog.solidsoft.info/

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  9. Conditional test exection
    Marcin Zajączkowski @SolidSoftBlog http://blog.solidsoft.info/

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  10. @Requires
    Runs annotated test (or the whole specification) only if
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    Marcin Zajączkowski @SolidSoftBlog http://blog.solidsoft.info/

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  11. @Requires
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    Marcin Zajączkowski @SolidSoftBlog http://blog.solidsoft.info/
    1.0

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  12. @Requires - continued
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    View Slide

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    Marcin Zajączkowski @SolidSoftBlog http://blog.solidsoft.info/

    View Slide

  14. @Requires - continued
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    View Slide

  15. @Requires - continued
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    Marcin Zajączkowski @SolidSoftBlog http://blog.solidsoft.info/

    View Slide

  16. @IgnoreIf and @Requires - new features
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    Marcin Zajączkowski @SolidSoftBlog http://blog.solidsoft.info/

    View Slide

  17. @IgnoreIf and @Requires - new features
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    Marcin Zajączkowski @SolidSoftBlog http://blog.solidsoft.info/
    1.0

    View Slide

  18. @IgnoreIf and @Requires - new features
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    Marcin Zajączkowski @SolidSoftBlog http://blog.solidsoft.info/

    View Slide

  19. @IgnoreIf and @Requires - new features
    s
    p
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    k
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    u
    t
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    Marcin Zajączkowski @SolidSoftBlog http://blog.solidsoft.info/
    1.0

    View Slide

  20. Cleaning up
    Marcin Zajączkowski @SolidSoftBlog http://blog.solidsoft.info/

    View Slide

  21. @RestoreSystemProperties
    Restores original system properties
    From S
    y
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    .
    g
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    P
    r
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    )
    To a state before test
    Marcin Zajączkowski @SolidSoftBlog http://blog.solidsoft.info/

    View Slide

  22. @RestoreSystemProperties - example
    @
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    Marcin Zajączkowski @SolidSoftBlog http://blog.solidsoft.info/

    View Slide

  23. @RestoreSystemProperties
    Restores original system properties
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    e
    m
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    g
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    s
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    E.g. testing Spring profiles activation based on system
    property
    Two modes
    For one feature (test)
    For the whole specification
    Just like using for every test
    Marcin Zajączkowski @SolidSoftBlog http://blog.solidsoft.info/

    View Slide

  24. @RestoreSystemProperties
    Restores original system properties
    From S
    y
    s
    t
    e
    m
    .
    g
    e
    t
    P
    r
    o
    p
    e
    r
    t
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    s
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    E.g. testing Spring profiles activation based on system
    property
    Two modes
    For one feature (test)
    For the whole specification
    Just like using for every test
    Marcin Zajączkowski @SolidSoftBlog http://blog.solidsoft.info/
    1.0

    View Slide

  25. @AutoCleanup
    Cleans up resource at the end of its life time
    Marcin Zajączkowski @SolidSoftBlog http://blog.solidsoft.info/

    View Slide

  26. @AutoCleanup - with separate cleanup
    c
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    Marcin Zajączkowski @SolidSoftBlog http://blog.solidsoft.info/

    View Slide

  27. @AutoCleanup - example
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    Marcin Zajączkowski @SolidSoftBlog http://blog.solidsoft.info/

    View Slide

  28. @AutoCleanup
    Cleans up resource at the end of its life time
    Applied on field
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    l
    e
    a
    u
    p
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    l
    e
    a
    n
    u
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    p
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    c method
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    A
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    a
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    u
    p
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    u
    i
    e
    t = t
    r
    u
    e
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    Marcin Zajączkowski @SolidSoftBlog http://blog.solidsoft.info/

    View Slide

  29. @AutoCleanup
    Cleans up resource at the end of its life time
    Applied on field
    No need to use separate c
    l
    e
    a
    u
    p
    /c
    l
    e
    a
    n
    u
    p
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    ) is called
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    n
    u
    p
    (
    q
    u
    i
    e
    t = t
    r
    u
    e
    ) to suppress exception logging
    Marcin Zajączkowski @SolidSoftBlog http://blog.solidsoft.info/
    0.7

    View Slide

  30. Initialization and clean up in test
    s
    e
    t
    u
    p
    /
    c
    l
    e
    a
    n
    u
    p can be declared per feature
    useful if feature specific operations
    Marcin Zajączkowski @SolidSoftBlog http://blog.solidsoft.info/

    View Slide

  31. Initialization and clean up in test
    s
    e
    t
    u
    p
    /
    c
    l
    e
    a
    n
    u
    p can be declared per feature
    useful if feature specific operations
    d
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    f "
    c
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    m
    p
    l
    e
    x l
    o
    g
    i
    c s
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    d w
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    h f
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    d t
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    d p
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    l
    "
    (
    ) {
    s
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    t
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    : /
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    l
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    a
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    { "
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    s C
    a
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    l
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    )
    .
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    e
    t
    (
    1
    , T
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    i
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    .
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    :
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    a
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    )
    }
    Marcin Zajączkowski @SolidSoftBlog http://blog.solidsoft.info/

    View Slide

  32. Initialization and clean up in test
    s
    e
    t
    u
    p
    /
    c
    l
    e
    a
    n
    u
    p can be declared per feature
    useful if feature specific operations
    s
    e
    t
    u
    p alias for g
    i
    v
    e
    n
    c
    l
    e
    a
    n
    u
    p like f
    i
    n
    a
    l
    l
    y executed even on exception
    works for every iteration (w
    h
    e
    r
    e
    )
    Marcin Zajączkowski @SolidSoftBlog http://blog.solidsoft.info/

    View Slide

  33. Native support for JUnit before/after
    annotations
    By default s
    e
    t
    u
    p
    S
    p
    e
    c
    (
    )
    , s
    e
    t
    u
    p
    (
    )
    , c
    l
    e
    a
    n
    u
    p
    (
    )
    , c
    l
    e
    a
    n
    u
    p
    S
    p
    e
    c
    (
    )
    In addition @
    B
    e
    f
    o
    r
    e
    C
    l
    a
    s
    s
    , @
    B
    e
    f
    o
    r
    e
    , @
    A
    f
    t
    e
    r
    , @
    A
    f
    t
    e
    r
    C
    l
    a
    s
    s
    Can be mixed together (also through class hierarchy)
    No longer called twice in super class
    More than one method of given type can be provided
    Useful when dealing with
    Additional testing frameworks like in Grails
    Traits with setup/clean up code
    Marcin Zajączkowski @SolidSoftBlog http://blog.solidsoft.info/
    1.0

    View Slide

  34. Simplifying specifications with traits
    Share common logic across different specifications
    No specification inheritance involved
    Can provide setup/cleanup methods
    Can have instance variables
    Groovy 2.3+ is required
    Marcin Zajączkowski @SolidSoftBlog http://blog.solidsoft.info/
    G
    roovy
    2.3

    View Slide

  35. Simplifying specifications with traits
    t
    r
    a
    i
    t D
    a
    t
    a
    b
    a
    s
    e
    T
    r
    a
    i
    t {
    @
    S
    h
    a
    r
    e
    d
    D
    B
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    o
    n
    n
    e
    c
    t
    i
    o
    n d
    b
    C
    o
    n
    n
    e
    c
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    i
    o
    n
    d
    e
    f s
    e
    t
    u
    p
    S
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    e
    c
    (
    ) { /
    /
    o
    r @
    B
    e
    f
    o
    r
    e
    C
    l
    a
    s
    s
    /
    /
    p
    r
    e
    p
    a
    r
    e D
    B
    }
    d
    e
    f c
    l
    e
    a
    n
    u
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    p
    e
    c
    (
    ) { /
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    o
    r @
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    f
    t
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    r
    C
    l
    a
    s
    s
    /
    /
    c
    l
    e
    a
    n u
    p D
    B
    }
    }
    Marcin Zajączkowski @SolidSoftBlog http://blog.solidsoft.info/

    View Slide

  36. Simplifying specifications with traits
    t
    r
    a
    i
    t D
    a
    t
    a
    b
    a
    s
    e
    T
    r
    a
    i
    t {
    @
    S
    h
    a
    r
    e
    d
    D
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    o
    n
    n
    e
    c
    t
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    n d
    b
    C
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    n
    e
    c
    t
    i
    o
    n
    d
    e
    f s
    e
    t
    u
    p
    S
    p
    e
    c
    (
    ) { /
    /
    o
    r @
    B
    e
    f
    o
    r
    e
    C
    l
    a
    s
    s
    /
    /
    p
    r
    e
    p
    a
    r
    e D
    B
    }
    d
    e
    f c
    l
    e
    a
    n
    u
    p
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    p
    e
    c
    (
    ) { /
    /
    o
    r @
    A
    f
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    e
    r
    C
    l
    a
    s
    s
    /
    /
    c
    l
    e
    a
    n u
    p D
    B
    }
    }
    c
    l
    a
    s
    s F
    a
    n
    c
    y
    1
    D
    a
    t
    a
    b
    a
    s
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    e
    c e
    x
    t
    e
    n
    d
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    e
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    i
    c
    a
    t
    i
    o
    n i
    m
    p
    l
    e
    m
    e
    n
    t
    s D
    a
    t
    a
    b
    a
    s
    e
    T
    r
    a
    i
    t {
    d
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    s
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    e
    }
    }
    c
    l
    a
    s
    s F
    a
    n
    c
    y
    2
    D
    a
    t
    a
    b
    a
    s
    e
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    p
    e
    c e
    x
    t
    e
    n
    d
    s S
    p
    e
    c
    i
    f
    i
    c
    a
    t
    i
    o
    n i
    m
    p
    l
    e
    m
    e
    n
    t
    s D
    a
    t
    a
    b
    a
    s
    e
    T
    r
    a
    i
    t {
    d
    e
    f "
    s
    h
    o
    u
    l
    d d
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    a
    n
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    i
    n
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    a
    t
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    ) {
    /
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    f
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    n
    c
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    2 t
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    n
    g
    s o
    n d
    a
    t
    a
    b
    a
    s
    e
    }
    }
    Marcin Zajączkowski @SolidSoftBlog http://blog.solidsoft.info/

    View Slide

  37. Parametrized tests
    Marcin Zajączkowski @SolidSoftBlog http://blog.solidsoft.info/

    View Slide

  38. Parametrized tests - basic case
    d
    e
    f "
    s
    h
    o
    u
    l
    d a
    d
    d t
    w
    o i
    n
    t
    e
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    e
    r
    s
    "
    (
    ) {
    g
    i
    v
    e
    n
    :
    C
    a
    l
    c
    u
    l
    a
    t
    o
    r s
    u
    t = n
    e
    w S
    i
    m
    p
    l
    e
    C
    a
    l
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    u
    l
    a
    t
    o
    r
    (
    )
    w
    h
    e
    n
    :
    i
    n
    t r
    e
    s
    u
    l
    t = s
    u
    t
    .
    a
    d
    d
    (
    x
    , y
    )
    t
    h
    e
    n
    :
    r
    e
    s
    u
    l
    t =
    = e
    x
    p
    e
    c
    t
    e
    d
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    e
    s
    u
    l
    t
    w
    h
    e
    r
    e
    :
    x | y |
    | e
    x
    p
    e
    c
    t
    e
    d
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    e
    s
    u
    l
    t
    1 | 2 |
    | 3
    -
    2 | 3 |
    | 1
    -
    1 | -
    2 |
    | -
    3
    }
    build-in support with w
    h
    e
    r
    e keyword
    does not stop on failure for given test case
    syntatic sugar for table-like data formatting
    Marcin Zajączkowski @SolidSoftBlog http://blog.solidsoft.info/

    View Slide

  39. Parametrized tests - could look better
    p
    r
    i
    v
    a
    t
    e P
    E
    S
    E
    L
    V
    a
    l
    i
    d
    a
    t
    o
    r s
    u
    t = n
    e
    w F
    a
    k
    e
    P
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    E
    L
    V
    a
    l
    i
    d
    a
    t
    o
    r
    (
    )
    d
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    f "
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    d
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    L c
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    e
    c
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    e
    s
    s
    "
    (
    ) {
    e
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    e
    c
    t
    :
    s
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    t
    .
    v
    a
    l
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    d
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    p
    e
    s
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    ) =
    = i
    s
    V
    a
    l
    i
    d
    w
    h
    e
    r
    e
    :
    p
    e
    s
    e
    l |
    | i
    s
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    a
    l
    i
    d
    "
    1
    2
    3
    " |
    | f
    a
    l
    s
    e
    "
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    b
    c
    d
    " |
    | f
    a
    l
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    e
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    9
    7
    1
    1
    0
    2
    0
    8
    6
    3
    1
    " |
    | t
    r
    u
    e
    }
    Marcin Zajączkowski @SolidSoftBlog http://blog.solidsoft.info/

    View Slide

  40. Parametrized tests - could look better
    p
    r
    i
    v
    a
    t
    e P
    E
    S
    E
    L
    V
    a
    l
    i
    d
    a
    t
    o
    r s
    u
    t = n
    e
    w F
    a
    k
    e
    P
    E
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    E
    L
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    a
    l
    i
    d
    a
    t
    o
    r
    (
    )
    d
    e
    f "
    s
    h
    o
    u
    l
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    a
    l
    i
    d
    a
    t
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    e
    c
    t
    n
    e
    s
    s
    "
    (
    ) {
    e
    x
    p
    e
    c
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    :
    s
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    a
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    e
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    p
    e
    s
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    ) =
    = i
    s
    V
    a
    l
    i
    d
    w
    h
    e
    r
    e
    :
    p
    e
    s
    e
    l |
    | i
    s
    V
    a
    l
    i
    d
    "
    1
    2
    3
    " |
    | f
    a
    l
    s
    e
    "
    a
    b
    c
    d
    " |
    | f
    a
    l
    s
    e
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    9
    7
    1
    1
    0
    2
    0
    8
    6
    3
    1
    " |
    | t
    r
    u
    e
    }
    Marcin Zajączkowski @SolidSoftBlog http://blog.solidsoft.info/

    View Slide

  41. Parametrized tests - could look better
    p
    r
    i
    v
    a
    t
    e P
    E
    S
    E
    L
    V
    a
    l
    i
    d
    a
    t
    o
    r s
    u
    t = n
    e
    w F
    a
    k
    e
    P
    E
    S
    E
    L
    V
    a
    l
    i
    d
    a
    t
    o
    r
    (
    )
    d
    e
    f "
    s
    h
    o
    u
    l
    d v
    a
    l
    i
    d
    a
    t
    e P
    E
    S
    E
    L c
    o
    r
    r
    e
    c
    t
    n
    e
    s
    s
    "
    (
    ) {
    e
    x
    p
    e
    c
    t
    :
    s
    u
    t
    .
    v
    a
    l
    i
    d
    a
    t
    e
    (
    p
    e
    s
    e
    l
    ) =
    = i
    s
    V
    a
    l
    i
    d
    w
    h
    e
    r
    e
    :
    p
    e
    s
    e
    l |
    | i
    s
    V
    a
    l
    i
    d
    "
    1
    2
    3
    " |
    | f
    a
    l
    s
    e
    "
    a
    b
    c
    d
    " |
    | f
    a
    l
    s
    e
    "
    9
    7
    1
    1
    0
    2
    0
    8
    6
    3
    1
    " |
    | t
    r
    u
    e
    }
    one combined test for all test cases
    not very readable in case of failure(s)
    Marcin Zajączkowski @SolidSoftBlog http://blog.solidsoft.info/

    View Slide

  42. Parametrized tests - @Unroll
    @
    U
    n
    r
    o
    l
    l
    d
    e
    f "
    s
    h
    o
    u
    l
    d v
    a
    l
    i
    d
    a
    t
    e P
    E
    S
    E
    L c
    o
    r
    r
    e
    c
    t
    n
    e
    s
    s (
    m
    u
    l
    t
    i
    p
    l
    e t
    e
    s
    t
    s
    )
    "
    (
    ) {
    e
    x
    p
    e
    c
    t
    :
    s
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    .
    v
    a
    l
    i
    d
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    t
    e
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    p
    e
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    ) =
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    s
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    a
    l
    i
    d
    w
    h
    e
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    e
    :
    p
    e
    s
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    l |
    | i
    s
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    a
    l
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    d
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    1
    2
    3
    " |
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    a
    l
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    a
    b
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    d
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    | f
    a
    l
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    9
    7
    1
    1
    0
    2
    0
    8
    6
    3
    1
    " |
    | t
    r
    u
    e
    }
    Marcin Zajączkowski @SolidSoftBlog http://blog.solidsoft.info/

    View Slide

  43. Parametrized tests - @Unroll
    @
    U
    n
    r
    o
    l
    l
    d
    e
    f "
    s
    h
    o
    u
    l
    d v
    a
    l
    i
    d
    a
    t
    e P
    E
    S
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    L c
    o
    r
    r
    e
    c
    t
    n
    e
    s
    s (
    m
    u
    l
    t
    i
    p
    l
    e t
    e
    s
    t
    s
    )
    "
    (
    ) {
    e
    x
    p
    e
    c
    t
    :
    s
    u
    t
    .
    v
    a
    l
    i
    d
    a
    t
    e
    (
    p
    e
    s
    e
    l
    ) =
    = i
    s
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    a
    l
    i
    d
    w
    h
    e
    r
    e
    :
    p
    e
    s
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    l |
    | i
    s
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    a
    l
    i
    d
    "
    1
    2
    3
    " |
    | f
    a
    l
    s
    e
    "
    a
    b
    c
    d
    " |
    | f
    a
    l
    s
    e
    "
    9
    7
    1
    1
    0
    2
    0
    8
    6
    3
    1
    " |
    | t
    r
    u
    e
    }
    Marcin Zajączkowski @SolidSoftBlog http://blog.solidsoft.info/

    View Slide

  44. Parametrized tests - @Unroll
    @
    U
    n
    r
    o
    l
    l
    d
    e
    f "
    s
    h
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    d v
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    i
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    e P
    E
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    E
    L c
    o
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    r
    e
    c
    t
    n
    e
    s
    s (
    m
    u
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    t
    i
    p
    l
    e t
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    s
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    s
    )
    "
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    ) {
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    p
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    1
    2
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    " |
    | f
    a
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    a
    b
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    a
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    9
    7
    1
    1
    0
    2
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    8
    6
    3
    1
    " |
    | t
    r
    u
    e
    }
    @
    U
    n
    r
    o
    l
    l to generate separate test per test case
    still confusing in case of failure
    Marcin Zajączkowski @SolidSoftBlog http://blog.solidsoft.info/

    View Slide

  45. Parametrized tests - @Unroll + #pesel
    @
    U
    n
    r
    o
    l
    l
    d
    e
    f "
    s
    h
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    u
    l
    d v
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    e P
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    #
    p
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    ) c
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    s
    s (
    #
    i
    s
    V
    a
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    ) {
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    2
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    " |
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    " |
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    9
    7
    1
    1
    0
    2
    0
    8
    6
    3
    1
    " |
    | t
    r
    u
    e
    }
    Marcin Zajączkowski @SolidSoftBlog http://blog.solidsoft.info/

    View Slide

  46. Parametrized tests - @Unroll + #pesel
    @
    U
    n
    r
    o
    l
    l
    d
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    f "
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    #
    p
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    ) c
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    c
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    s
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    ) {
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    3
    1
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    r
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    }
    Marcin Zajączkowski @SolidSoftBlog http://blog.solidsoft.info/

    View Slide

  47. Parametrized tests - @Unroll + #pesel
    @
    U
    n
    r
    o
    l
    l
    d
    e
    f "
    s
    h
    o
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    d v
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    #
    p
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    s
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    ) c
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    c
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    s
    s (
    #
    i
    s
    V
    a
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    i
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    )
    "
    (
    ) {
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    " |
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    9
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    3
    1
    " |
    | t
    r
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    e
    }
    #
    p
    e
    s
    e
    l and #
    i
    s
    V
    a
    l
    i
    d to put input parameter into test report
    more readable, but still can be confusing for business
    people reading BDD reports
    Marcin Zajączkowski @SolidSoftBlog http://blog.solidsoft.info/

    View Slide

  48. Parametrized tests - @Unroll with message
    @
    U
    n
    r
    o
    l
    l
    (
    "
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    Marcin Zajączkowski @SolidSoftBlog http://blog.solidsoft.info/

    View Slide

  49. Parametrized tests - @Unroll with message
    @
    U
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    Marcin Zajączkowski @SolidSoftBlog http://blog.solidsoft.info/

    View Slide

  50. Parametrized tests - @Unroll with message
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    distinguish test name
    and test description
    used in test report
    additional (artificial) parameter for test report only
    with autocompletion in IntelliJ IDEA
    Marcin Zajączkowski @SolidSoftBlog http://blog.solidsoft.info/

    View Slide

  51. Parametrized tests - data pipes
    @
    U
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    table is syntatic sugar for data pipes
    "<
    <
    " operator to connect data variable with data provider
    Marcin Zajączkowski @SolidSoftBlog http://blog.solidsoft.info/

    View Slide

  52. Parametrized tests - more data providers
    @
    U
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    l
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    o
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    o t
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    }
    not only static elements
    everything iterable in Groovy
    also SQL rows or CSV files
    Marcin Zajączkowski @SolidSoftBlog http://blog.solidsoft.info/

    View Slide

  53. Mocking
    Marcin Zajączkowski @SolidSoftBlog http://blog.solidsoft.info/

    View Slide

  54. Simple Stubbing
    c
    l
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    }
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    )
    }
    Marcin Zajączkowski @SolidSoftBlog http://blog.solidsoft.info/

    View Slide

  55. Simple Stubbing - inline
    c
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    s
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    a
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    p
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    a
    t
    e D
    a
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    <
    I
    t
    e
    m
    > d
    a
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    t
    u
    b
    (
    D
    a
    o
    ) {
    d
    a
    o
    .
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    u
    n
    t
    (
    ) >
    > 1
    }
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    d s
    t
    u
    b m
    e
    t
    h
    o
    d c
    a
    l
    l
    "
    (
    ) {
    e
    x
    p
    e
    c
    t
    :
    d
    a
    o
    .
    g
    e
    t
    C
    o
    u
    n
    t
    (
    ) =
    = 1
    }
    }
    Marcin Zajączkowski @SolidSoftBlog http://blog.solidsoft.info/

    View Slide

  56. Simple Stubbing - consecutive calls
    c
    l
    a
    s
    s D
    a
    o
    S
    p
    e
    c e
    x
    t
    e
    n
    d
    s S
    p
    e
    c
    i
    f
    i
    c
    a
    t
    i
    o
    n {
    d
    e
    f "
    s
    h
    o
    u
    l
    d s
    t
    u
    b c
    o
    n
    s
    e
    c
    u
    t
    i
    v
    e c
    a
    l
    l
    s
    "
    (
    ) {
    g
    i
    v
    e
    n
    :
    D
    a
    o
    <
    I
    t
    e
    m
    > d
    a
    o = S
    t
    u
    b
    (
    D
    a
    o
    )
    d
    a
    o
    .
    g
    e
    t
    C
    o
    u
    n
    t
    (
    ) >
    > 1 >
    > 2
    e
    x
    p
    e
    c
    t
    :
    d
    a
    o
    .
    g
    e
    t
    C
    o
    u
    n
    t
    (
    ) =
    = 1
    a
    n
    d
    :
    d
    a
    o
    .
    g
    e
    t
    C
    o
    u
    n
    t
    (
    ) =
    = 2
    a
    n
    d
    :
    d
    a
    o
    .
    g
    e
    t
    C
    o
    u
    n
    t
    (
    ) =
    = 2
    }
    }
    Marcin Zajączkowski @SolidSoftBlog http://blog.solidsoft.info/

    View Slide

  57. Simple Stubbing - consecutive calls (list)
    c
    l
    a
    s
    s D
    a
    o
    S
    p
    e
    c e
    x
    t
    e
    n
    d
    s S
    p
    e
    c
    i
    f
    i
    c
    a
    t
    i
    o
    n {
    d
    e
    f "
    s
    h
    o
    u
    l
    d s
    t
    u
    b c
    o
    n
    s
    e
    c
    u
    t
    i
    v
    e c
    a
    l
    l
    s (
    l
    i
    s
    t
    )
    "
    (
    ) {
    g
    i
    v
    e
    n
    :
    D
    a
    o
    <
    I
    t
    e
    m
    > d
    a
    o = S
    t
    u
    b
    (
    D
    a
    o
    )
    d
    a
    o
    .
    g
    e
    t
    C
    o
    u
    n
    t
    (
    ) >
    >
    > [
    1
    , 2
    ]
    e
    x
    p
    e
    c
    t
    :
    d
    a
    o
    .
    g
    e
    t
    C
    o
    u
    n
    t
    (
    ) =
    = 1
    a
    n
    d
    :
    d
    a
    o
    .
    g
    e
    t
    C
    o
    u
    n
    t
    (
    ) =
    = 2
    a
    n
    d
    :
    d
    a
    o
    .
    g
    e
    t
    C
    o
    u
    n
    t
    (
    ) =
    = 2
    }
    }
    Marcin Zajączkowski @SolidSoftBlog http://blog.solidsoft.info/

    View Slide

  58. Simple Stubbing - input parameters (array)
    c
    l
    a
    s
    s D
    a
    o
    S
    p
    e
    c e
    x
    t
    e
    n
    d
    s S
    p
    e
    c
    i
    f
    i
    c
    a
    t
    i
    o
    n {
    d
    e
    f "
    s
    h
    o
    u
    l
    d s
    t
    u
    b m
    e
    t
    h
    o
    d c
    a
    l
    l t
    o r
    e
    t
    u
    r
    n i
    n
    p
    u
    t v
    a
    l
    u
    e
    "
    (
    ) {
    g
    i
    v
    e
    n
    :
    I
    t
    e
    m b
    a
    s
    e
    I
    t
    e
    m = n
    e
    w I
    t
    e
    m
    (
    )
    a
    n
    d
    :
    D
    a
    o
    <
    I
    t
    e
    m
    > d
    a
    o = S
    t
    u
    b
    (
    D
    a
    o
    )
    d
    a
    o
    .
    s
    a
    v
    e
    (
    _
    ) >
    > { i
    t
    [
    0
    ] }
    w
    h
    e
    n
    :
    I
    t
    e
    m r
    e
    t
    u
    r
    n
    e
    d
    I
    t
    e
    m = d
    a
    o
    .
    s
    a
    v
    e
    (
    b
    a
    s
    e
    I
    t
    e
    m
    )
    t
    h
    e
    n
    :
    b
    a
    s
    e
    I
    t
    e
    m
    .
    i
    s
    (
    r
    e
    t
    u
    r
    n
    e
    d
    I
    t
    e
    m
    )
    }
    }
    by default array of input parameters
    Marcin Zajączkowski @SolidSoftBlog http://blog.solidsoft.info/

    View Slide

  59. Simple Stubbing - named input parameters
    c
    l
    a
    s
    s D
    a
    o
    S
    p
    e
    c e
    x
    t
    e
    n
    d
    s S
    p
    e
    c
    i
    f
    i
    c
    a
    t
    i
    o
    n {
    d
    e
    f "
    s
    h
    o
    u
    l
    d s
    t
    u
    b m
    e
    t
    h
    o
    d c
    a
    l
    l t
    o r
    e
    t
    u
    r
    n i
    n
    p
    u
    t v
    a
    l
    u
    e
    "
    (
    ) {
    g
    i
    v
    e
    n
    :
    I
    t
    e
    m b
    a
    s
    e
    I
    t
    e
    m = n
    e
    w I
    t
    e
    m
    (
    )
    a
    n
    d
    :
    D
    a
    o
    <
    I
    t
    e
    m
    > d
    a
    o = S
    t
    u
    b
    (
    D
    a
    o
    )
    d
    a
    o
    .
    s
    a
    v
    e
    (
    _
    ) >
    > { I
    t
    e
    m i
    t
    e
    m -
    > i
    t
    e
    m }
    w
    h
    e
    n
    :
    I
    t
    e
    m r
    e
    t
    u
    r
    n
    e
    d
    I
    t
    e
    m = d
    a
    o
    .
    s
    a
    v
    e
    (
    b
    a
    s
    e
    I
    t
    e
    m
    )
    t
    h
    e
    n
    :
    b
    a
    s
    e
    I
    t
    e
    m
    .
    i
    s
    (
    r
    e
    t
    u
    r
    n
    e
    d
    I
    t
    e
    m
    )
    }
    }
    can be declared explicit as named (and typed) parameters
    all have to be declared
    Marcin Zajączkowski @SolidSoftBlog http://blog.solidsoft.info/

    View Slide

  60. Simple Stubbing - throwing exception
    c
    l
    a
    s
    s D
    a
    o
    S
    p
    e
    c e
    x
    t
    e
    n
    d
    s S
    p
    e
    c
    i
    f
    i
    c
    a
    t
    i
    o
    n {
    d
    e
    f "
    s
    h
    o
    u
    l
    d t
    h
    r
    o
    w e
    x
    c
    e
    p
    t
    i
    o
    n f
    o
    r s
    p
    e
    c
    i
    f
    i
    c i
    n
    p
    u
    t p
    a
    r
    a
    m
    e
    t
    e
    r
    s
    "
    (
    ) {
    g
    i
    v
    e
    n
    :
    D
    a
    o
    <
    I
    t
    e
    m
    > d
    a
    o = S
    t
    u
    b
    (
    D
    a
    o
    )
    d
    a
    o
    .
    s
    a
    v
    e
    (
    _
    ) >
    > { I
    t
    e
    m i
    t
    e
    m -
    >
    t
    h
    r
    o
    w n
    e
    w I
    l
    l
    e
    g
    a
    l
    A
    r
    g
    u
    m
    e
    n
    t
    E
    x
    c
    e
    p
    t
    i
    o
    n
    (
    i
    t
    e
    m
    .
    t
    o
    S
    t
    r
    i
    n
    g
    (
    )
    )
    }
    w
    h
    e
    n
    :
    d
    a
    o
    .
    s
    a
    v
    e
    (
    n
    e
    w I
    t
    e
    m
    (
    )
    )
    t
    h
    e
    n
    :
    t
    h
    r
    o
    w
    n
    (
    I
    l
    l
    e
    g
    a
    l
    A
    r
    g
    u
    m
    e
    n
    t
    E
    x
    c
    e
    p
    t
    i
    o
    n
    )
    }
    }
    Marcin Zajączkowski @SolidSoftBlog http://blog.solidsoft.info/

    View Slide

  61. Simple Stubbing - throwing exception
    c
    l
    a
    s
    s D
    a
    o
    S
    p
    e
    c e
    x
    t
    e
    n
    d
    s S
    p
    e
    c
    i
    f
    i
    c
    a
    t
    i
    o
    n {
    d
    e
    f "
    s
    h
    o
    u
    l
    d t
    h
    r
    o
    w e
    x
    c
    e
    p
    t
    i
    o
    n f
    o
    r s
    p
    e
    c
    i
    f
    i
    c i
    n
    p
    u
    t p
    a
    r
    a
    m
    e
    t
    e
    r
    s
    "
    (
    ) {
    g
    i
    v
    e
    n
    :
    D
    a
    o
    <
    I
    t
    e
    m
    > d
    a
    o = S
    t
    u
    b
    (
    D
    a
    o
    )
    d
    a
    o
    .
    s
    a
    v
    e
    (
    _
    ) >
    > { I
    t
    e
    m i
    t
    e
    m -
    >
    t
    h
    r
    o
    w n
    e
    w I
    l
    l
    e
    g
    a
    l
    A
    r
    g
    u
    m
    e
    n
    t
    E
    x
    c
    e
    p
    t
    i
    o
    n
    (
    i
    t
    e
    m
    .
    t
    o
    S
    t
    r
    i
    n
    g
    (
    )
    )
    }
    w
    h
    e
    n
    :
    d
    a
    o
    .
    s
    a
    v
    e
    (
    n
    e
    w I
    t
    e
    m
    (
    )
    )
    t
    h
    e
    n
    :
    t
    h
    r
    o
    w
    n
    (
    I
    l
    l
    e
    g
    a
    l
    A
    r
    g
    u
    m
    e
    n
    t
    E
    x
    c
    e
    p
    t
    i
    o
    n
    )
    w
    h
    e
    n
    :
    d
    a
    o
    .
    s
    a
    v
    e
    (
    n
    u
    l
    l
    )
    t
    h
    e
    n
    :
    t
    h
    r
    o
    w
    n
    (
    I
    l
    l
    e
    g
    a
    l
    A
    r
    g
    u
    m
    e
    n
    t
    E
    x
    c
    e
    p
    t
    i
    o
    n
    )
    }
    }
    smart t
    o
    S
    t
    r
    i
    n
    g
    (
    ) from Groovy (for null objects)
    Marcin Zajączkowski @SolidSoftBlog http://blog.solidsoft.info/

    View Slide

  62. Stubbing and verifying together
    c
    l
    a
    s
    s D
    a
    o
    S
    p
    e
    c e
    x
    t
    e
    n
    d
    s S
    p
    e
    c
    i
    f
    i
    c
    a
    t
    i
    o
    n {
    d
    e
    f "
    s
    h
    o
    u
    l
    d s
    t
    u
    b a
    n
    d v
    e
    r
    i
    f
    y
    "
    (
    ) {
    g
    i
    v
    e
    n
    :
    I
    t
    e
    m b
    a
    s
    e
    I
    t
    e
    m = n
    e
    w I
    t
    e
    m
    (
    )
    a
    n
    d
    :
    D
    a
    o
    <
    I
    t
    e
    m
    > d
    a
    o = S
    t
    u
    b
    (
    D
    a
    o
    )
    w
    h
    e
    n
    :
    I
    t
    e
    m r
    e
    t
    u
    r
    n
    e
    d
    I
    t
    e
    m = d
    a
    o
    .
    s
    a
    v
    e
    (
    b
    a
    s
    e
    I
    t
    e
    m
    )
    t
    h
    e
    n
    :
    1 * d
    a
    o
    .
    s
    a
    v
    e
    (
    _
    ) >
    > { I
    t
    e
    m i
    t
    e
    m -
    > i
    t
    e
    m }
    a
    n
    d
    :
    b
    a
    s
    e
    I
    t
    e
    m
    .
    i
    s
    (
    r
    e
    t
    u
    r
    n
    e
    d
    I
    t
    e
    m
    )
    }
    }
    has to be in the same statement
    in t
    h
    e
    n section
    Marcin Zajączkowski @SolidSoftBlog http://blog.solidsoft.info/

    View Slide

  63. Overriding stubbed value
    c
    l
    a
    s
    s B
    u
    s
    i
    n
    e
    s
    s
    S
    e
    r
    v
    i
    c
    e
    S
    p
    e
    c e
    x
    t
    e
    n
    d
    s S
    p
    e
    c
    i
    f
    i
    c
    a
    t
    i
    o
    n {
    p
    r
    i
    v
    a
    t
    e B
    o
    r
    i
    n
    g
    C
    o
    l
    l
    a
    b
    o
    r
    a
    t
    o
    r b
    o
    r
    i
    n
    g
    S
    t
    u
    b = S
    t
    u
    b
    (
    B
    o
    r
    i
    n
    g
    C
    o
    l
    l
    a
    b
    o
    r
    a
    t
    o
    r
    ) {
    s
    e
    n
    d
    P
    i
    n
    g
    (
    ) >
    > "
    O
    K
    "
    }
    p
    r
    i
    v
    a
    t
    e B
    u
    s
    i
    n
    e
    s
    s
    S
    e
    r
    v
    i
    c
    e s
    u
    t = n
    e
    w B
    u
    s
    i
    n
    e
    s
    s
    S
    e
    r
    v
    i
    c
    e
    (
    b
    o
    r
    i
    n
    g
    S
    t
    u
    b
    )
    d
    e
    f "
    s
    h
    o
    u
    l
    d c
    a
    l
    c
    u
    l
    a
    t
    e i
    m
    p
    o
    r
    t
    a
    n
    t b
    u
    s
    i
    n
    e
    s
    s c
    a
    s
    e 1
    "
    (
    ) {
    w
    h
    e
    n
    :
    i
    n
    t r
    e
    s
    u
    l
    t = s
    u
    t
    .
    c
    a
    l
    c
    u
    l
    a
    t
    e
    I
    m
    p
    o
    r
    t
    a
    n
    t
    T
    h
    i
    n
    g
    s
    (
    )
    t
    h
    e
    n
    :
    r
    e
    s
    u
    l
    t =
    = E
    X
    P
    E
    C
    T
    E
    D
    _
    R
    E
    S
    U
    L
    T
    _
    1
    }
    d
    e
    f "
    s
    h
    o
    u
    l
    d c
    a
    l
    c
    u
    l
    a
    t
    e i
    m
    p
    o
    r
    t
    a
    n
    t b
    u
    s
    i
    n
    e
    s
    s c
    a
    s
    e 2
    "
    (
    ) { .
    .
    . }
    many positive cases with s
    e
    n
    d
    P
    i
    n
    g
    (
    ) >
    > "
    O
    K
    "
    how to test negative scenario?
    Marcin Zajączkowski @SolidSoftBlog http://blog.solidsoft.info/

    View Slide

  64. Overriding stubbed value - broken
    c
    l
    a
    s
    s B
    u
    s
    i
    n
    e
    s
    s
    S
    e
    r
    v
    i
    c
    e
    S
    p
    e
    c e
    x
    t
    e
    n
    d
    s S
    p
    e
    c
    i
    f
    i
    c
    a
    t
    i
    o
    n {
    p
    r
    i
    v
    a
    t
    e B
    o
    r
    i
    n
    g
    C
    o
    l
    l
    a
    b
    o
    r
    a
    t
    o
    r b
    o
    r
    i
    n
    g
    S
    t
    u
    b = S
    t
    u
    b
    (
    B
    o
    r
    i
    n
    g
    C
    o
    l
    l
    a
    b
    o
    r
    a
    t
    o
    r
    ) {
    s
    e
    n
    d
    P
    i
    n
    g
    (
    ) >
    > "
    O
    K
    "
    }
    p
    r
    i
    v
    a
    t
    e B
    u
    s
    i
    n
    e
    s
    s
    S
    e
    r
    v
    i
    c
    e s
    u
    t = n
    e
    w B
    u
    s
    i
    n
    e
    s
    s
    S
    e
    r
    v
    i
    c
    e
    (
    b
    o
    r
    i
    n
    g
    S
    t
    u
    b
    )
    d
    e
    f "
    s
    h
    o
    u
    l
    d c
    a
    l
    c
    u
    l
    a
    t
    e i
    m
    p
    o
    r
    t
    a
    n
    t b
    u
    s
    i
    n
    e
    s
    s c
    a
    s
    e 1
    "
    (
    ) { .
    .
    . }
    d
    e
    f "
    s
    h
    o
    u
    l
    d c
    a
    l
    c
    u
    l
    a
    t
    e i
    m
    p
    o
    r
    t
    a
    n
    t b
    u
    s
    i
    n
    e
    s
    s c
    a
    s
    e 2
    "
    (
    ) { .
    .
    . }
    @
    I
    g
    n
    o
    r
    e
    (
    "
    b
    r
    o
    k
    e
    n
    "
    )
    d
    e
    f "
    s
    h
    o
    u
    l
    d c
    o
    v
    e
    r c
    o
    l
    l
    a
    b
    o
    r
    a
    t
    o
    r e
    r
    r
    o
    r
    "
    (
    ) {
    g
    i
    v
    e
    n
    :
    b
    o
    r
    i
    n
    g
    S
    t
    u
    b
    .
    s
    e
    n
    d
    P
    i
    n
    g
    (
    ) >
    > "
    E
    R
    R
    O
    R
    " /
    /
    d
    o
    e
    s n
    o
    t w
    o
    r
    k
    !
    w
    h
    e
    n
    :
    s
    u
    t
    .
    c
    a
    l
    c
    u
    l
    a
    t
    e
    I
    m
    p
    o
    r
    t
    a
    n
    t
    T
    h
    i
    n
    g
    s
    (
    )
    t
    h
    e
    n
    :
    t
    h
    r
    o
    w
    n
    (
    I
    l
    l
    e
    g
    a
    l
    S
    t
    a
    t
    e
    E
    x
    c
    e
    p
    t
    i
    o
    n
    )
    }
    override in Mockito style does not work
    Marcin Zajączkowski @SolidSoftBlog http://blog.solidsoft.info/

    View Slide

  65. Overriding stubbed value - in t
    h
    e
    n section
    c
    l
    a
    s
    s B
    u
    s
    i
    n
    e
    s
    s
    S
    e
    r
    v
    i
    c
    e
    S
    p
    e
    c e
    x
    t
    e
    n
    d
    s S
    p
    e
    c
    i
    f
    i
    c
    a
    t
    i
    o
    n {
    p
    r
    i
    v
    a
    t
    e B
    o
    r
    i
    n
    g
    C
    o
    l
    l
    a
    b
    o
    r
    a
    t
    o
    r b
    o
    r
    i
    n
    g
    S
    t
    u
    b = S
    t
    u
    b
    (
    B
    o
    r
    i
    n
    g
    C
    o
    l
    l
    a
    b
    o
    r
    a
    t
    o
    r
    ) {
    s
    e
    n
    d
    P
    i
    n
    g
    (
    ) >
    > "
    O
    K
    "
    }
    p
    r
    i
    v
    a
    t
    e B
    u
    s
    i
    n
    e
    s
    s
    S
    e
    r
    v
    i
    c
    e s
    u
    t = n
    e
    w B
    u
    s
    i
    n
    e
    s
    s
    S
    e
    r
    v
    i
    c
    e
    (
    b
    o
    r
    i
    n
    g
    S
    t
    u
    b
    )
    d
    e
    f "
    s
    h
    o
    u
    l
    d c
    a
    l
    c
    u
    l
    a
    t
    e i
    m
    p
    o
    r
    t
    a
    n
    t b
    u
    s
    i
    n
    e
    s
    s c
    a
    s
    e 1
    "
    (
    ) { .
    .
    . }
    d
    e
    f "
    s
    h
    o
    u
    l
    d c
    a
    l
    c
    u
    l
    a
    t
    e i
    m
    p
    o
    r
    t
    a
    n
    t b
    u
    s
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    n
    e
    s
    s c
    a
    s
    e 2
    "
    (
    ) { .
    .
    . }
    d
    e
    f "
    s
    h
    o
    u
    l
    d c
    o
    v
    e
    r c
    o
    l
    l
    a
    b
    o
    r
    a
    t
    o
    r e
    r
    r
    o
    r
    "
    (
    ) {
    w
    h
    e
    n
    :
    s
    u
    t
    .
    c
    a
    l
    c
    u
    l
    a
    t
    e
    I
    m
    p
    o
    r
    t
    a
    n
    t
    T
    h
    i
    n
    g
    s
    (
    )
    t
    h
    e
    n
    :
    b
    o
    r
    i
    n
    g
    S
    t
    u
    b
    .
    s
    e
    n
    d
    P
    i
    n
    g
    (
    ) >
    > "
    E
    R
    R
    O
    R
    " /
    /
    s
    t
    u
    b
    b
    i
    n
    g i
    n "
    t
    h
    e
    n
    "
    , l
    o
    o
    k
    s b
    a
    d
    a
    n
    d
    :
    t
    h
    r
    o
    w
    n
    (
    I
    l
    l
    e
    g
    a
    l
    S
    t
    a
    t
    e
    E
    x
    c
    e
    p
    t
    i
    o
    n
    )
    }
    has to placed in t
    h
    e
    n section
    Marcin Zajączkowski @SolidSoftBlog http://blog.solidsoft.info/

    View Slide

  66. Verification in order - issue
    @
    I
    g
    n
    o
    r
    e
    (
    "
    b
    r
    o
    k
    e
    n
    "
    )
    d
    e
    f "
    n
    o
    t
    i
    f
    i
    c
    a
    t
    i
    o
    n s
    h
    o
    u
    l
    d b
    e s
    e
    n
    d a
    f
    t
    e
    r b
    u
    s
    i
    n
    e
    s
    s o
    p
    e
    r
    a
    t
    i
    o
    n (
    i
    g
    n
    o
    r
    e o
    r
    d
    e
    r
    )
    "
    (
    ) {
    g
    i
    v
    e
    n
    :
    D
    a
    o d
    a
    o = M
    o
    c
    k
    (
    )
    N
    o
    t
    i
    f
    i
    e
    r n
    o
    t
    i
    f
    i
    e
    r = M
    o
    c
    k
    (
    )
    a
    n
    d
    :
    d
    e
    f s
    u
    t = n
    e
    w B
    u
    s
    i
    n
    e
    s
    s
    S
    e
    r
    v
    i
    c
    e
    (
    d
    a
    o
    , n
    o
    t
    i
    f
    i
    e
    r
    )
    w
    h
    e
    n
    :
    s
    u
    t
    .
    p
    r
    o
    c
    e
    s
    s
    O
    r
    d
    e
    r
    (
    )
    t
    h
    e
    n
    :
    1 * d
    a
    o
    .
    s
    a
    v
    e
    O
    r
    d
    e
    r
    (
    _
    ) /
    /
    o
    r
    d
    e
    r d
    o
    e
    s n
    o
    t m
    a
    t
    t
    e
    r
    1 * n
    o
    t
    i
    f
    i
    e
    r
    .
    s
    e
    n
    d
    N
    o
    t
    i
    f
    i
    c
    a
    t
    i
    o
    n
    (
    _
    )
    }
    order is not verified
    notification could be send before saving order
    Marcin Zajączkowski @SolidSoftBlog http://blog.solidsoft.info/

    View Slide

  67. Verification in order - solution
    d
    e
    f "
    n
    o
    t
    i
    f
    i
    c
    a
    t
    i
    o
    n s
    h
    o
    u
    l
    d b
    e s
    e
    n
    d a
    f
    t
    e
    r b
    u
    s
    i
    n
    e
    s
    s o
    p
    e
    r
    a
    t
    i
    o
    n
    "
    (
    ) {
    g
    i
    v
    e
    n
    :
    D
    a
    o d
    a
    o = M
    o
    c
    k
    (
    )
    N
    o
    t
    i
    f
    i
    e
    r n
    o
    t
    i
    f
    i
    e
    r = M
    o
    c
    k
    (
    )
    a
    n
    d
    :
    d
    e
    f s
    u
    t = n
    e
    w B
    u
    s
    i
    n
    e
    s
    s
    S
    e
    r
    v
    i
    c
    e
    (
    d
    a
    o
    , n
    o
    t
    i
    f
    i
    e
    r
    )
    w
    h
    e
    n
    :
    s
    u
    t
    .
    p
    r
    o
    c
    e
    s
    s
    O
    r
    d
    e
    r
    (
    )
    t
    h
    e
    n
    :
    1 * d
    a
    o
    .
    s
    a
    v
    e
    O
    r
    d
    e
    r
    (
    _
    )
    t
    h
    e
    n
    :
    1 * n
    o
    t
    i
    f
    i
    e
    r
    .
    s
    e
    n
    d
    N
    o
    t
    i
    f
    i
    c
    a
    t
    i
    o
    n
    (
    _
    )
    }
    mutiple then block are evaluated separately
    Marcin Zajączkowski @SolidSoftBlog http://blog.solidsoft.info/

    View Slide

  68. Verification in order - gotcha
    @
    I
    g
    n
    o
    r
    e
    (
    "
    b
    r
    o
    k
    e
    n
    "
    )
    d
    e
    f "
    n
    o
    t
    i
    f
    i
    c
    a
    t
    i
    o
    n s
    h
    o
    u
    l
    d b
    e s
    e
    n
    d a
    f
    t
    e
    r b
    u
    s
    i
    n
    e
    s
    s o
    p
    e
    r
    a
    t
    i
    o
    n (
    w
    i
    t
    h '
    a
    n
    d
    '
    )
    "
    (
    ) {
    g
    i
    v
    e
    n
    :
    D
    a
    o d
    a
    o = M
    o
    c
    k
    (
    )
    N
    o
    t
    i
    f
    i
    e
    r n
    o
    t
    i
    f
    i
    e
    r = M
    o
    c
    k
    (
    )
    a
    n
    d
    :
    d
    e
    f s
    u
    t = n
    e
    w B
    u
    s
    i
    n
    e
    s
    s
    S
    e
    r
    v
    i
    c
    e
    (
    d
    a
    o
    , n
    o
    t
    i
    f
    i
    e
    r
    )
    w
    h
    e
    n
    :
    s
    u
    t
    .
    p
    r
    o
    c
    e
    s
    s
    O
    r
    d
    e
    r
    (
    )
    t
    h
    e
    n
    :
    1 * d
    a
    o
    .
    s
    a
    v
    e
    O
    r
    d
    e
    r
    (
    _
    )
    a
    n
    d
    : /
    /
    '
    a
    n
    d
    ' d
    o
    e
    s n
    o
    t v
    e
    r
    i
    f
    y e
    x
    e
    c
    u
    t
    i
    o
    n o
    r
    d
    e
    r
    1 * n
    o
    t
    i
    f
    i
    e
    r
    .
    s
    e
    n
    d
    N
    o
    t
    i
    f
    i
    c
    a
    t
    i
    o
    n
    (
    _
    )
    }
    a
    n
    d does not verify execution order
    it is for documentation purposes only
    Marcin Zajączkowski @SolidSoftBlog http://blog.solidsoft.info/

    View Slide

  69. Miscellaneous
    Marcin Zajączkowski @SolidSoftBlog http://blog.solidsoft.info/

    View Slide

  70. Active condition waiting
    PoolingConditions
    Active waiting for condition to pass - like in Awaitility
    No more s
    l
    e
    e
    p
    (
    3
    0
    0
    0
    )
    Marcin Zajączkowski @SolidSoftBlog http://blog.solidsoft.info/

    View Slide

  71. Active condition waiting - example
    d
    e
    f "
    s
    h
    o
    u
    l
    d r
    e
    c
    e
    i
    v
    e p
    a
    c
    k
    e
    t a
    f
    t
    e
    r w
    h
    i
    l
    e
    "
    (
    ) {
    g
    i
    v
    e
    n
    :
    d
    e
    f c
    o
    n
    d
    i
    t
    i
    o
    n
    s = n
    e
    w P
    o
    l
    l
    i
    n
    g
    C
    o
    n
    d
    i
    t
    i
    o
    n
    s
    (
    )
    d
    e
    f a
    s
    y
    n
    c
    h
    r
    o
    n
    o
    u
    s
    M
    e
    s
    s
    a
    g
    e
    Q
    u
    e
    u
    e = n
    e
    w D
    e
    l
    a
    y
    e
    d
    D
    e
    l
    i
    v
    e
    r
    y
    M
    e
    s
    s
    a
    g
    e
    Q
    u
    e
    u
    e
    F
    a
    c
    a
    d
    e
    (
    )
    w
    h
    e
    n
    :
    a
    s
    y
    n
    c
    h
    r
    o
    n
    o
    u
    s
    M
    e
    s
    s
    a
    g
    e
    Q
    u
    e
    u
    e
    .
    s
    e
    n
    d
    P
    i
    n
    g
    (
    )
    t
    h
    e
    n
    :
    c
    o
    n
    d
    i
    t
    i
    o
    n
    s
    .
    e
    v
    e
    n
    t
    u
    a
    l
    l
    y {
    a
    s
    s
    e
    r
    t a
    s
    y
    n
    c
    h
    r
    o
    n
    o
    u
    s
    M
    e
    s
    s
    a
    g
    e
    Q
    u
    e
    u
    e
    .
    n
    u
    m
    b
    e
    r
    O
    f
    R
    e
    c
    e
    i
    v
    e
    d
    P
    a
    c
    k
    e
    t
    s =
    = 1
    }
    }
    With default values
    Marcin Zajączkowski @SolidSoftBlog http://blog.solidsoft.info/

    View Slide

  72. Active condition waiting - example
    d
    e
    f "
    s
    h
    o
    u
    l
    d r
    e
    c
    e
    i
    v
    e p
    a
    c
    k
    e
    t a
    f
    t
    e
    r w
    h
    i
    l
    e
    "
    (
    ) {
    g
    i
    v
    e
    n
    :
    d
    e
    f c
    o
    n
    d
    i
    t
    i
    o
    n
    s = n
    e
    w P
    o
    l
    l
    i
    n
    g
    C
    o
    n
    d
    i
    t
    i
    o
    n
    s
    (
    t
    i
    m
    e
    o
    u
    t
    : 2
    , i
    n
    i
    t
    i
    a
    l
    D
    e
    l
    a
    y
    : 0
    .
    3
    )
    d
    e
    f a
    s
    y
    n
    c
    h
    r
    o
    n
    o
    u
    s
    M
    e
    s
    s
    a
    g
    e
    Q
    u
    e
    u
    e = n
    e
    w D
    e
    l
    a
    y
    e
    d
    D
    e
    l
    i
    v
    e
    r
    y
    M
    e
    s
    s
    a
    g
    e
    Q
    u
    e
    u
    e
    F
    a
    c
    a
    d
    e
    (
    )
    w
    h
    e
    n
    :
    a
    s
    y
    n
    c
    h
    r
    o
    n
    o
    u
    s
    M
    e
    s
    s
    a
    g
    e
    Q
    u
    e
    u
    e
    .
    s
    e
    n
    d
    P
    i
    n
    g
    (
    )
    t
    h
    e
    n
    :
    c
    o
    n
    d
    i
    t
    i
    o
    n
    s
    .
    e
    v
    e
    n
    t
    u
    a
    l
    l
    y {
    a
    s
    s
    e
    r
    t a
    s
    y
    n
    c
    h
    r
    o
    n
    o
    u
    s
    M
    e
    s
    s
    a
    g
    e
    Q
    u
    e
    u
    e
    .
    n
    u
    m
    b
    e
    r
    O
    f
    R
    e
    c
    e
    i
    v
    e
    d
    P
    a
    c
    k
    e
    t
    s =
    = 1
    }
    }
    With custom configuration
    Marcin Zajączkowski @SolidSoftBlog http://blog.solidsoft.info/

    View Slide

  73. Active condition waiting - example
    d
    e
    f "
    s
    h
    o
    u
    l
    d r
    e
    c
    e
    i
    v
    e p
    a
    c
    k
    e
    t a
    f
    t
    e
    r w
    h
    i
    l
    e
    "
    (
    ) {
    g
    i
    v
    e
    n
    :
    d
    e
    f c
    o
    n
    d
    i
    t
    i
    o
    n
    s = n
    e
    w P
    o
    l
    l
    i
    n
    g
    C
    o
    n
    d
    i
    t
    i
    o
    n
    s
    (
    t
    i
    m
    e
    o
    u
    t
    : 2
    , i
    n
    i
    t
    i
    a
    l
    D
    e
    l
    a
    y
    : 0
    .
    3
    )
    d
    e
    f a
    s
    y
    n
    c
    h
    r
    o
    n
    o
    u
    s
    M
    e
    s
    s
    a
    g
    e
    Q
    u
    e
    u
    e = n
    e
    w D
    e
    l
    a
    y
    e
    d
    D
    e
    l
    i
    v
    e
    r
    y
    M
    e
    s
    s
    a
    g
    e
    Q
    u
    e
    u
    e
    F
    a
    c
    a
    d
    e
    (
    )
    w
    h
    e
    n
    :
    a
    s
    y
    n
    c
    h
    r
    o
    n
    o
    u
    s
    M
    e
    s
    s
    a
    g
    e
    Q
    u
    e
    u
    e
    .
    s
    e
    n
    d
    P
    i
    n
    g
    (
    )
    t
    h
    e
    n
    :
    c
    o
    n
    d
    i
    t
    i
    o
    n
    s
    .
    w
    i
    t
    h
    i
    n
    (
    5
    ) {
    a
    s
    s
    e
    r
    t a
    s
    y
    n
    c
    h
    r
    o
    n
    o
    u
    s
    M
    e
    s
    s
    a
    g
    e
    Q
    u
    e
    u
    e
    .
    n
    u
    m
    b
    e
    r
    O
    f
    R
    e
    c
    e
    i
    v
    e
    d
    P
    a
    c
    k
    e
    t
    s =
    = 1
    }
    }
    w
    i
    t
    h
    i
    n
    g
    (
    t
    i
    m
    e
    o
    u
    t
    I
    n
    S
    e
    c
    o
    n
    d
    s
    ) can override original timeout in
    specific call
    Marcin Zajączkowski @SolidSoftBlog http://blog.solidsoft.info/

    View Slide

  74. Active condition waiting - example
    d
    e
    f "
    s
    h
    o
    u
    l
    d r
    e
    c
    e
    i
    v
    e p
    a
    c
    k
    e
    t a
    f
    t
    e
    r w
    h
    i
    l
    e
    "
    (
    ) {
    g
    i
    v
    e
    n
    :
    P
    o
    l
    l
    i
    n
    g
    C
    o
    n
    d
    i
    t
    i
    o
    n
    s c
    o
    n
    d
    i
    t
    i
    o
    n
    s = n
    e
    w P
    o
    l
    l
    i
    n
    g
    C
    o
    n
    d
    i
    t
    i
    o
    n
    s
    (
    )
    d
    e
    f a
    s
    y
    n
    c
    h
    r
    o
    n
    o
    u
    s
    M
    e
    s
    s
    a
    g
    e
    Q
    u
    e
    u
    e = n
    e
    w D
    e
    l
    a
    y
    e
    d
    D
    e
    l
    i
    v
    e
    r
    y
    M
    e
    s
    s
    a
    g
    e
    Q
    u
    e
    u
    e
    F
    a
    c
    a
    d
    e
    (
    )
    w
    h
    e
    n
    :
    a
    s
    y
    n
    c
    h
    r
    o
    n
    o
    u
    s
    M
    e
    s
    s
    a
    g
    e
    Q
    u
    e
    u
    e
    .
    s
    e
    n
    d
    P
    i
    n
    g
    (
    )
    t
    h
    e
    n
    :
    c
    o
    n
    d
    i
    t
    i
    o
    n
    s
    .
    e
    v
    e
    n
    t
    u
    a
    l
    l
    y {
    a
    s
    y
    n
    c
    h
    r
    o
    n
    o
    u
    s
    M
    e
    s
    s
    a
    g
    e
    Q
    u
    e
    u
    e
    .
    n
    u
    m
    b
    e
    r
    O
    f
    R
    e
    c
    e
    i
    v
    e
    d
    P
    a
    c
    k
    e
    t
    s =
    = 1
    }
    }
    a
    s
    s
    e
    r
    t keyword can omitted when P
    o
    l
    l
    i
    n
    g
    C
    o
    n
    d
    i
    t
    i
    o
    n
    s is
    declared explicit (not with d
    e
    f
    )
    Marcin Zajączkowski @SolidSoftBlog http://blog.solidsoft.info/

    View Slide

  75. Active condition waiting
    PoolingConditions
    Active waiting for condition to pass - like in Awaitility
    No more s
    l
    e
    e
    p
    (
    3
    0
    0
    0
    )
    Ability to specify: timeout, initialDelay, delay and factor
    a
    s
    s
    e
    r
    t keyword is (usually) required
    Useful in multithreading code and asynchronous external
    calls (like message queues)
    Cannot be used for interaction verification
    Marcin Zajączkowski @SolidSoftBlog http://blog.solidsoft.info/

    View Slide

  76. Active condition waiting
    PoolingConditions
    Active waiting for condition to pass - like in Awaitility
    No more s
    l
    e
    e
    p
    (
    3
    0
    0
    0
    )
    Ability to specify: timeout, initialDelay, delay and factor
    a
    s
    s
    e
    r
    t keyword is (usually) required
    Useful in multithreading code and asynchronous external
    calls (like message queues)
    Cannot be used for interaction verification
    Marcin Zajączkowski @SolidSoftBlog http://blog.solidsoft.info/
    0.7

    View Slide

  77. Asserting previous value (manual way)
    Check if/how given value was changed
    d
    e
    f "
    s
    h
    o
    u
    l
    d c
    r
    e
    a
    t
    e n
    e
    w r
    e
    c
    o
    r
    d w
    h
    e
    n i
    t
    e
    m i
    s s
    a
    v
    e
    d (
    m
    a
    n
    u
    a
    l w
    a
    y
    )
    "
    (
    ) {
    g
    i
    v
    e
    n
    :
    D
    a
    o d
    a
    o = n
    e
    w D
    u
    m
    m
    y
    D
    a
    o
    (
    )
    a
    n
    d
    :
    i
    n
    t o
    r
    i
    g
    i
    n
    a
    l
    N
    u
    m
    b
    e
    r
    O
    f
    R
    e
    c
    o
    r
    d
    s = d
    a
    o
    .
    g
    e
    t
    C
    o
    u
    n
    t
    (
    )
    w
    h
    e
    n
    :
    d
    a
    o
    .
    s
    a
    v
    e
    (
    n
    e
    w I
    t
    e
    m
    (
    )
    )
    t
    h
    e
    n
    :
    d
    a
    o
    .
    g
    e
    t
    C
    o
    u
    n
    t
    (
    ) =
    = o
    r
    i
    g
    i
    n
    a
    l
    N
    u
    m
    b
    e
    r
    O
    f
    R
    e
    c
    o
    r
    d
    s + 1
    }
    i
    n
    t
    e
    r
    f
    a
    c
    e D
    a
    o {
    i
    n
    t g
    e
    t
    C
    o
    u
    n
    t
    (
    )
    v
    o
    i
    d s
    a
    v
    e
    (
    I
    t
    e
    m i
    t
    e
    m
    )
    }
    Marcin Zajączkowski @SolidSoftBlog http://blog.solidsoft.info/

    View Slide

  78. Asserting previous value (Spock way)
    d
    e
    f "
    s
    h
    o
    u
    l
    d c
    r
    e
    a
    t
    e n
    e
    w r
    e
    c
    o
    r
    d w
    h
    e
    n i
    t
    e
    m i
    s s
    a
    v
    e
    d
    "
    (
    ) {
    g
    i
    v
    e
    n
    :
    D
    a
    o d
    a
    o = n
    e
    w D
    u
    m
    m
    y
    D
    a
    o
    (
    )
    w
    h
    e
    n
    :
    d
    a
    o
    .
    s
    a
    v
    e
    (
    n
    e
    w I
    t
    e
    m
    (
    )
    )
    t
    h
    e
    n
    :
    d
    a
    o
    .
    g
    e
    t
    C
    o
    u
    n
    t
    (
    ) =
    = o
    l
    d
    (
    d
    a
    o
    .
    g
    e
    t
    C
    o
    u
    n
    t
    (
    )
    ) + 1
    }
    i
    n
    t
    e
    r
    f
    a
    c
    e D
    a
    o {
    i
    n
    t g
    e
    t
    C
    o
    u
    n
    t
    (
    )
    v
    o
    i
    d s
    a
    v
    e
    (
    I
    t
    e
    m i
    t
    e
    m
    )
    }
    Spock generates code to keep the old value
    Works with fields and methods
    Marcin Zajączkowski @SolidSoftBlog http://blog.solidsoft.info/

    View Slide

  79. BDD-like documentation
    Highlight business context
    Block description (w
    h
    e
    n
    : "
    p
    u
    t e
    l
    e
    m
    e
    n
    t o
    n s
    t
    a
    c
    k
    "
    )
    @
    S
    e
    e
    (
    "
    h
    t
    t
    p
    s
    :
    /
    /
    e
    n
    .
    w
    i
    k
    i
    p
    e
    d
    i
    a
    .
    o
    r
    g
    /
    w
    i
    k
    i
    /
    S
    p
    o
    c
    k
    "
    )
    @
    I
    s
    s
    u
    e
    (
    "
    h
    t
    t
    p
    :
    /
    /
    t
    i
    n
    y
    u
    r
    l
    .
    c
    o
    m
    /
    s
    p
    o
    c
    k
    -
    i
    s
    s
    u
    e
    2
    6
    0
    "
    )
    @
    S
    u
    b
    j
    e
    c
    t
    (
    "
    T
    O
    D
    O
    : p
    r
    z
    y
    k
    l
    a
    d
    y
    "
    )
    @
    T
    i
    t
    l
    e
    @
    N
    a
    r
    r
    a
    t
    i
    v
    e
    Marcin Zajączkowski @SolidSoftBlog http://blog.solidsoft.info/

    View Slide

  80. Optional runtime configuration
    Configures Spock behavior
    Injectable into run context and extensions
    By default for
    Runner
    Report
    Ability to create custom configuration when needed
    Marcin Zajączkowski @SolidSoftBlog http://blog.solidsoft.info/
    0.7, 1.0

    View Slide

  81. Optional runtime configuration
    ~
    /
    .
    s
    p
    o
    c
    k
    /
    S
    p
    o
    c
    k
    C
    o
    n
    f
    i
    g
    .
    g
    r
    o
    o
    v
    y
    r
    u
    n
    n
    e
    r {
    i
    n
    c
    l
    u
    d
    e p
    a
    c
    k
    a
    g
    e
    .
    D
    e
    f
    a
    u
    l
    t
    S
    p
    e
    c
    i
    f
    i
    c
    a
    t
    i
    o
    n
    B
    a
    s
    e
    C
    l
    a
    s
    s
    e
    x
    c
    l
    u
    d
    e p
    a
    c
    k
    a
    g
    e
    .
    I
    n
    t
    e
    g
    r
    a
    t
    i
    o
    n
    A
    n
    n
    o
    t
    a
    t
    i
    o
    n
    o
    p
    t
    i
    m
    i
    z
    e
    R
    u
    n
    O
    r
    d
    e
    r = t
    r
    u
    e
    f
    i
    l
    t
    e
    r
    S
    t
    a
    c
    k
    T
    r
    a
    c
    e = f
    a
    l
    s
    e
    }
    r
    e
    p
    o
    r
    t {
    e
    n
    a
    b
    l
    e
    d = t
    r
    u
    e
    i
    s
    s
    u
    e
    N
    a
    m
    e
    P
    r
    e
    f
    i
    x = "
    J
    L
    T
    N
    -
    "
    i
    s
    s
    u
    e
    U
    r
    l
    P
    r
    e
    f
    i
    x = "
    h
    t
    t
    p
    s
    :
    /
    /
    g
    i
    t
    h
    u
    b
    .
    c
    o
    m
    /
    C
    o
    n
    f
    i
    t
    u
    r
    a
    /
    j
    e
    l
    a
    t
    y
    n
    a
    /
    i
    s
    s
    u
    e
    s
    "
    l
    o
    g
    F
    i
    l
    e
    S
    u
    f
    f
    i
    x = "
    .
    l
    o
    g
    "
    .
    .
    .
    }
    Marcin Zajączkowski @SolidSoftBlog http://blog.solidsoft.info/
    0.7, 1.0

    View Slide

  82. Optional runtime configuration - location
    Reads from S
    p
    o
    c
    k
    C
    o
    n
    f
    i
    g
    .
    g
    r
    o
    o
    v
    y taken from:
    -
    D
    s
    p
    o
    c
    k
    .
    c
    o
    n
    f
    i
    g
    u
    r
    a
    t
    i
    o
    n
    Classpath
    Spock home directory
    -
    D
    s
    p
    o
    c
    k
    .
    u
    s
    e
    r
    .
    h
    o
    m
    e
    $
    S
    P
    O
    C
    K
    _
    U
    S
    E
    R
    _
    H
    O
    M
    E
    ~
    /
    .
    s
    p
    o
    c
    k
    /
    Marcin Zajączkowski @SolidSoftBlog http://blog.solidsoft.info/
    0.7, 1.0

    View Slide

  83. Exception util
    Makes assertions on nested exception causes easier
    Taken after Grails
    s
    p
    o
    c
    k
    .
    u
    t
    i
    l
    .
    E
    x
    c
    e
    p
    t
    i
    o
    n
    s
    T
    h
    r
    o
    w
    a
    b
    l
    e g
    e
    t
    R
    o
    o
    t
    C
    a
    u
    s
    e
    (
    T
    h
    r
    o
    w
    a
    b
    l
    e e
    x
    c
    e
    p
    t
    i
    o
    n
    )
    L
    i
    s
    t
    <
    T
    h
    r
    o
    w
    a
    b
    l
    e
    > g
    e
    t
    C
    a
    u
    s
    e
    C
    h
    a
    i
    n
    (
    T
    h
    r
    o
    w
    a
    b
    l
    e e
    x
    c
    e
    p
    t
    i
    o
    n
    )
    Marcin Zajączkowski @SolidSoftBlog http://blog.solidsoft.info/

    View Slide

  84. Exception util
    Makes assertions on nested exception causes easier
    Taken after Grails
    s
    p
    o
    c
    k
    .
    u
    t
    i
    l
    .
    E
    x
    c
    e
    p
    t
    i
    o
    n
    s
    T
    h
    r
    o
    w
    a
    b
    l
    e g
    e
    t
    R
    o
    o
    t
    C
    a
    u
    s
    e
    (
    T
    h
    r
    o
    w
    a
    b
    l
    e e
    x
    c
    e
    p
    t
    i
    o
    n
    )
    L
    i
    s
    t
    <
    T
    h
    r
    o
    w
    a
    b
    l
    e
    > g
    e
    t
    C
    a
    u
    s
    e
    C
    h
    a
    i
    n
    (
    T
    h
    r
    o
    w
    a
    b
    l
    e e
    x
    c
    e
    p
    t
    i
    o
    n
    )
    d
    e
    f "
    s
    h
    o
    u
    l
    d t
    h
    r
    o
    w b
    u
    s
    i
    n
    e
    s
    s e
    x
    c
    e
    p
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    Marcin Zajączkowski @SolidSoftBlog http://blog.solidsoft.info/

    View Slide

  85. Exception util
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    Marcin Zajączkowski @SolidSoftBlog http://blog.solidsoft.info/
    1.0

    View Slide

  86. Extensibility
    Powerful extension mechanism
    Many of features implemented as built-in extensions
    Most of already presented
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    Spring, Guice, Tapestry, Unitils
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    have accepted pull request
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    Marcin Zajączkowski @SolidSoftBlog http://blog.solidsoft.info/

    View Slide

  87. Summary (aka Why I like Spock?)
    Consist and readable test code
    Tests as specification by default
    All Groovy magic available to help
    Embedded mocking framework
    Although Mockito can be used if preferred
    Highly extensible
    Compatible with tools supporting JUnit
    Marcin Zajączkowski @SolidSoftBlog Version: 1.11p-4d

    View Slide

  88. Questions?
    Marcin Zajączkowski
    http://blog.solidsoft.info/
    @SolidSoftBlog
    [email protected]
    Marcin Zajączkowski @SolidSoftBlog http://blog.solidsoft.info/

    View Slide

  89. Thank you
    (and remember about the feedback!)
    Marcin Zajączkowski
    http://blog.solidsoft.info/
    @SolidSoftBlog
    [email protected]
    Marcin Zajączkowski @SolidSoftBlog http://blog.solidsoft.info/

    View Slide