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TDD - EP 5
codurance.com
Testing anti-patterns - The stranger, The
operating system evangelist, Success
against all odds and The free ride
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Matheus Marabesi
Hello there, you can call me Marabesi,
But my name is Matheus Marabesi, I work at Codurance as a
Software Craftsperson.
I enjoy talking about anything related to: testing, patterns and
gamification.
You can find me at @MatheusMarabesi or https://marabesi.com
Codurance
Crafting Code
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1. Intro - Recap
2. The stranger
3. The operating system evangelist
4. Success against all odds
5. The free ride
6. Wrapping up
Crafting code
Agenda
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1. Recap
Episode 1, Episode 2, Episode 3,
Episode 4
Getting started
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The Liar
The Giant
The Mockery
The Inspector
Generous Leftovers
The Local Hero
The Nitpicker
The Secret Catcher
The Dodger
The Loudmouth
Anti patterns
The Greedy Catcher
Excessive Setup
The Sequencer
Hidden Dependency
The Enumerator
The Stranger
The Operating System Evangelist
Success Against All Odds
The Free Ride
The One
The Peeping Tom
The Slow Poke
James Carr - TDD Anti-Patterns
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The Liar 4
The Giant 5
The Mockery 1
The Inspector 7
Generous Leftovers 5
The Local Hero 7
The Nitpicker 8
The Secret Catcher 7
The Dodger 8
The Loudmouth 8
Anti patterns
The Greedy Catcher 7
Excessive Setup 3
The Sequencer 7
Hidden Dependency 2
The Enumerator 8
The Stranger
The Operating System Evangelist
Success Against All Odds
The Free Ride
The One
The Peeping Tom
The Slow Poke 6
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Anti patterns - Survey takeaways
1. Survey notes: Javascript, PHP and Java were the most used programming languages
2. Survey notes: Practitioners usually informally learn TDD
3. The anti patterns covered were related to test last
4. Subjects we touched around testability: SOLID, Object calisthenics, Non-determinism and the
test pyramid
5. Examples are from open source projects and also extraction from real code bases
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MOST POPULAR
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2. Anti-patterns - Episode 5
The stranger, The operating system
evangelist, Success against all odds and
The free ride
Getting started
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The Liar
The Giant
The Mockery
The Inspector
Generous Leftovers
The Local Hero
The Nitpicker
The Secret Catcher
The Dodger
The Loudmouth
Anti patterns
The Greedy Catcher
Excessive Setup
The Sequencer
Hidden Dependency
The Enumerator
The Stranger
The Operating System Evangelist
Success Against All Odds
The Free Ride
The One
The Peeping Tom
The Slow Poke
James Carr - TDD Anti-Patterns
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The Liar
The Giant
The Mockery
The Inspector
Generous Leftovers
The Local Hero
The Nitpicker
The Secret Catcher
The Dodger
The Loudmouth
Anti patterns
The Greedy Catcher
Excessive Setup
The Sequencer
Hidden Dependency
The Enumerator
The Stranger 7
The Operating System Evangelist 8
Success Against All Odds 3
The Free Ride 8
The One
The Peeping Tom
The Slow Poke
James Carr - TDD Anti-Patterns
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2. The stranger - 🏆 7
Crafting code
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2. The stranger - 🏆 7
A test case that doesn’t even belong in the unit
test it is part of. it’s really testing a separate
object, most likely an object that is used by the
object under test, but the test case has gone and
tested that object directly without relying on the
output from the object under test making use of
that object for its own behavior.
Crafting code
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Usually the strange is not
something easy to spot
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● It depends on context
The stranger
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● It depends on context
● It is related to the xUnit pattern in the section "Test smells"
The stranger
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● It depends on context
● It is related to the xUnit pattern in the section "Test smells"
● It can be related to mocks
The stranger
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3. The Operating System Evangelist - 🏆8
Crafting code
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3. The Operating System Evangelist - 🏆8
A unit test that relies on a specific operation
system environment to be in place in order to
work.
Crafting code
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class LutrisWrapperTestCase(unittest.TestCase):
def test_excluded_initial_process(self):
"Test that an excluded process that starts a monitored process works"
env = os.environ.copy()
env['PYTHONPATH'] = ':'.join(sys.path)
# run the lutris-wrapper with a bash subshell. bash is "excluded"
wrapper_proc = subprocess.Popen(
[
sys.executable, lutris_wrapper_bin, 'title', '0', '1', 'bash', 'bash',
'-c',
"echo Hello World; exec 1>&-; while sleep infinity; do true; done"
],
stdin=subprocess.DEVNULL, stdout=subprocess.PIPE, env=env,
)
Python - Lutris
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class LutrisWrapperTestCase(unittest.TestCase):
def test_excluded_initial_process(self):
"Test that an excluded process that starts a monitored process works"
env = os.environ.copy()
env['PYTHONPATH'] = ':'.join(sys.path)
# run the lutris-wrapper with a bash subshell. bash is "excluded"
wrapper_proc = subprocess.Popen(
[
sys.executable, lutris_wrapper_bin, 'title', '0', '1', 'bash', 'bash',
'-c',
"echo Hello World; exec 1>&-; while sleep infinity; do true; done"
],
stdin=subprocess.DEVNULL, stdout=subprocess.PIPE, env=env,
)
Python - Lutris
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class LutrisWrapperTestCase(unittest.TestCase):
def test_excluded_initial_process(self):
"Test that an excluded process that starts a monitored process works"
env = os.environ.copy()
env['PYTHONPATH'] = ':'.join(sys.path)
# run the lutris-wrapper with a bash subshell. bash is "excluded"
wrapper_proc = subprocess.Popen(
[
sys.executable, lutris_wrapper_bin, 'title', '0', '1', 'bash', 'bash',
'-c',
"echo Hello World; exec 1>&-; while sleep infinity; do true; done"
],
stdin=subprocess.DEVNULL, stdout=subprocess.PIPE, env=env,
)
Python - Lutris
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class LutrisWrapperTestCase(unittest.TestCase):
def test_excluded_initial_process(self):
"Test that an excluded process that starts a monitored process works"
env = os.environ.copy()
env['PYTHONPATH'] = ':'.join(sys.path)
# run the lutris-wrapper with a bash subshell. bash is "excluded"
wrapper_proc = subprocess.Popen(
[
sys.executable, lutris_wrapper_bin, 'title', '0', '1', 'bash', 'bash',
'-c',
"echo Hello World; exec 1>&-; while sleep infinity; do true; done"
],
stdin=subprocess.DEVNULL, stdout=subprocess.PIPE, env=env,
)
Python - Lutris
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class LutrisWrapperTestCase(unittest.TestCase):
def test_excluded_initial_process(self):
"Test that an excluded process that starts a monitored process works"
env = os.environ.copy()
env['PYTHONPATH'] = ':'.join(sys.path)
# run the lutris-wrapper with a bash subshell. bash is "excluded"
wrapper_proc = subprocess.Popen(
[
sys.executable, lutris_wrapper_bin, 'title', '0', '1', 'bash', 'bash',
'-c',
"echo Hello World; exec 1>&-; while sleep infinity; do true; done"
],
stdin=subprocess.DEVNULL, stdout=subprocess.PIPE, env=env,
)
Python - Lutris
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class LutrisWrapperTestCase(unittest.TestCase):
def test_excluded_initial_process(self):
"Test that an excluded process that starts a monitored process works"
env = os.environ.copy()
env['PYTHONPATH'] = ':'.join(sys.path)
# run the lutris-wrapper with a bash subshell. bash is "excluded"
wrapper_proc = subprocess.Popen(
[
sys.executable, lutris_wrapper_bin, 'title', '0', '1', 'bash', 'bash',
'-c',
"echo Hello World; exec 1>&-; while sleep infinity; do true; done"
],
stdin=subprocess.DEVNULL, stdout=subprocess.PIPE, env=env,
)
Python - Lutris
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class LutrisWrapperTestCase(unittest.TestCase):
def test_excluded_initial_process(self):
"Test that an excluded process that starts a monitored process works"
env = os.environ.copy()
env['PYTHONPATH'] = ':'.join(sys.path)
# run the lutris-wrapper with a bash subshell. bash is "excluded"
wrapper_proc = subprocess.Popen(
[
sys.executable, lutris_wrapper_bin, 'title', '0', '1', 'bash', 'bash',
'-c',
"echo Hello World; exec 1>&-; while sleep infinity; do true; done"
],
stdin=subprocess.DEVNULL, stdout=subprocess.PIPE, env=env,
)
Python - Lutris
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class LutrisWrapperTestCase(unittest.TestCase):
def test_excluded_initial_process(self):
"Test that an excluded process that starts a monitored process works"
env = os.environ.copy()
env['PYTHONPATH'] = ':'.join(sys.path)
# run the lutris-wrapper with a bash subshell. bash is "excluded"
wrapper_proc = subprocess.Popen(
[
sys.executable, lutris_wrapper_bin, 'title', '0', '1', 'bash', 'bash',
'-c',
"echo Hello World; exec 1>&-; while sleep infinity; do true; done"
],
stdin=subprocess.DEVNULL, stdout=subprocess.PIPE, env=env,
)
Python - Lutris
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class LutrisWrapperTestCase(unittest.TestCase):
def test_excluded_initial_process(self):
"Test that an excluded process that starts a monitored process works"
env = os.environ.copy()
env['PYTHONPATH'] = ':'.join(sys.path)
# run the lutris-wrapper with a bash subshell. bash is "excluded"
wrapper_proc = subprocess.Popen(
[
sys.executable, lutris_wrapper_bin, 'title', '0', '1', 'bash', 'bash',
'-c',
"echo Hello World; exec 1>&-; while sleep infinity; do true; done"
],
stdin=subprocess.DEVNULL, stdout=subprocess.PIPE, env=env,
)
Python - Lutris
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class LutrisWrapperTestCase(unittest.TestCase):
def test_excluded_initial_process(self):
"Test that an excluded process that starts a monitored process works"
env = os.environ.copy()
env['PYTHONPATH'] = ':'.join(sys.path)
# run the lutris-wrapper with a bash subshell. bash is "excluded"
wrapper_proc = subprocess.Popen(
[
sys.executable, lutris_wrapper_bin, 'title', '0', '1', 'bash', 'bash',
'-c',
"echo Hello World; exec 1>&-; while sleep infinity; do true; done"
],
stdin=subprocess.DEVNULL, stdout=subprocess.PIPE, env=env,
)
Python - Lutris
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class LutrisWrapperTestCase(unittest.TestCase):
def test_excluded_initial_process(self):
"Test that an excluded process that starts a monitored process works"
env = os.environ.copy()
env['PYTHONPATH'] = ':'.join(sys.path)
# run the lutris-wrapper with a bash subshell. bash is "excluded"
wrapper_proc = subprocess.Popen(
[
sys.executable, lutris_wrapper_bin, 'title', '0', '1', 'bash', 'bash',
'-c',
"echo Hello World; exec 1>&-; while sleep infinity; do true; done"
],
stdin=subprocess.DEVNULL, stdout=subprocess.PIPE, env=env,
)
Python - Lutris
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class LutrisWrapperTestCase(unittest.TestCase):
def test_excluded_initial_process(self):
"Test that an excluded process that starts a monitored process works"
env = os.environ.copy()
env['PYTHONPATH'] = ':'.join(sys.path)
# run the lutris-wrapper with a bash subshell. bash is "excluded"
wrapper_proc = subprocess.Popen(
[
sys.executable, lutris_wrapper_bin, 'title', '0', '1', 'bash', 'bash',
'-c',
"echo Hello World; exec 1>&-; while sleep infinity; do true; done"
],
stdin=subprocess.DEVNULL, stdout=subprocess.PIPE, env=env,
)
Python - Lutris
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class LutrisWrapperTestCase(unittest.TestCase):
def test_excluded_initial_process(self):
"Test that an excluded process that starts a monitored process works"
env = os.environ.copy()
env['PYTHONPATH'] = ':'.join(sys.path)
# run the lutris-wrapper with a bash subshell. bash is "excluded"
wrapper_proc = subprocess.Popen(
[
sys.executable, lutris_wrapper_bin, 'title', '0', '1', 'bash', 'bash',
'-c',
"echo Hello World; exec 1>&-; while sleep infinity; do true; done"
],
stdin=subprocess.DEVNULL, stdout=subprocess.PIPE, env=env,
)
Python - Lutris
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Go lang - Windows portability
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Go lang - Windows portability
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@Test
public void testWithoutSOptionAndWithoutJENKINS_URL() throws Exception {
Assume.assumeThat(System.getenv("JENKINS_URL"), is(nullValue()));
// TODO instead remove it from the process env?
assertNotEquals(0, launch("java",
"-Duser.home=" + home,
"-jar", jar.getAbsolutePath(),
"who-am-i")
);
}
Java - Jenkins
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@Test
public void testWithoutSOptionAndWithoutJENKINS_URL() throws Exception {
Assume.assumeThat(System.getenv("JENKINS_URL"), is(nullValue()));
// TODO instead remove it from the process env?
assertNotEquals(0, launch("java",
"-Duser.home=" + home,
"-jar", jar.getAbsolutePath(),
"who-am-i")
);
}
Java - Jenkins
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FLASH BACK
Episode 2 - The local hero
Episode 2 - The local hero
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https://www.codurance.com/publications/tdd-anti-patterns-chapter-2
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4. Success Against All Odds - 🏆3
Crafting code
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4. Success Against All Odds - 🏆3
A test that was written pass first rather than
fail first. As an unfortunate side effect, the
test case happens to always pass even
though the test should fail.
Crafting code
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@Repository
class ProductsRepositoryWithPostgres(
private val entityManager: EntityManager
) : Repository {
override fun listFilteredProducts(query: String?, input: PagingQueryInput?) {
val pageRequest: PageRequest = input.asPageRequest()
val page: Page = if (query.isNullOrBlank()) {
entityManager.findAll(pageRequest)
} else {
entityManager.findAllByName(query, pageRequest)
}
return page
}
}
mockk - kotlin
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@Repository
class ProductsRepositoryWithPostgres(
private val entityManager: EntityManager
) : Repository {
override fun listFilteredProducts(query: String?, input: PagingQueryInput?) {
val pageRequest: PageRequest = input.asPageRequest()
val page: Page = if (query.isNullOrBlank()) {
entityManager.findAll(pageRequest)
} else {
entityManager.findAllByName(query, pageRequest)
}
return page
}
}
mockk - kotlin
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@Repository
class ProductsRepositoryWithPostgres(
private val entityManager: EntityManager
) : Repository {
override fun listFilteredProducts(query: String?, input: PagingQueryInput?) {
val pageRequest: PageRequest = input.asPageRequest()
val page: Page = if (query.isNullOrBlank()) {
entityManager.findAll(pageRequest)
} else {
entityManager.findAllByName(query, pageRequest)
}
return page
}
}
mockk - kotlin
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@Repository
class ProductsRepositoryWithPostgres(
private val entityManager: EntityManager
) : Repository {
override fun listFilteredProducts(query: String?, input: PagingQueryInput?) {
val pageRequest: PageRequest = input.asPageRequest()
val page: Page = if (query.isNullOrBlank()) {
entityManager.findAll(pageRequest)
} else {
entityManager.findAllByName(query, pageRequest)
}
return page
}
}
mockk - kotlin
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@Repository
class ProductsRepositoryWithPostgres(
private val entityManager: EntityManager
) : Repository {
override fun listFilteredProducts(query: String?, input: PagingQueryInput?) {
val pageRequest: PageRequest = input.asPageRequest()
val page: Page = if (query.isNullOrBlank()) {
entityManager.findAll(pageRequest)
} else {
entityManager.findAllByName(query, pageRequest)
}
return page
}
}
mockk - kotlin
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@Repository
class ProductsRepositoryWithPostgres(
private val entityManager: EntityManager
) : Repository {
override fun listFilteredProducts(query: String?, input: PagingQueryInput?) {
val pageRequest: PageRequest = input.asPageRequest()
val page: Page = if (query.isNullOrBlank()) {
entityManager.findAll(pageRequest)
} else {
entityManager.findAllByName(query, pageRequest)
}
return page
}
}
mockk - kotlin
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@Repository
class ProductsRepositoryWithPostgres(
private val entityManager: EntityManager
) : Repository {
override fun listFilteredProducts(query: String?, input: PagingQueryInput?) {
val pageRequest: PageRequest = input.asPageRequest()
val page: Page = if (query.isNullOrBlank()) {
entityManager.findAll(pageRequest)
} else {
entityManager.findAllByName(query, pageRequest)
}
return page
}
}
mockk - kotlin
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@Repository
class ProductsRepositoryWithPostgres(
private val entityManager: EntityManager
) : Repository {
override fun listFilteredProducts(query: String?, input: PagingQueryInput?) {
val pageRequest: PageRequest = input.asPageRequest()
val page: Page = if (query.isNullOrBlank()) {
entityManager.findAll(pageRequest)
} else {
entityManager.findAllByName(query, pageRequest)
}
return page
}
}
mockk - kotlin
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@Repository
class ProductsRepositoryWithPostgres(
private val entityManager: EntityManager
) : Repository {
override fun listFilteredProducts(query: String?, input: PagingQueryInput?) {
val pageRequest: PageRequest = input.asPageRequest()
val page: Page = if (query.isNullOrBlank()) {
entityManager.findAll(pageRequest)
} else {
entityManager.findAllByName(query, pageRequest)
}
return page
}
}
mockk - kotlin
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@Repository
class ProductsRepositoryWithPostgres(
private val entityManager: EntityManager
) : Repository {
override fun listFilteredProducts(query: String?, input: PagingQueryInput?) {
val pageRequest: PageRequest = input.asPageRequest()
val page: Page = if (query.isNullOrBlank()) {
entityManager.findAll(pageRequest)
} else {
entityManager.findAllByName(query, pageRequest)
}
return page
}
}
mockk - kotlin
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private fun setupBeforeAll() {
productIds = (1..100).map { db().productWithDependencies().apply().get() }
productIdsContainingWood.addAll(
(1..3).map { insertProductWithName("WoodyWoodOrange " + faker.funnyName().name()) }
)
productIdsContainingWood.addAll(
(1..3).map {
insertProductWithName(
faker.funnyName().name() + " WoodyWoodOrange " + faker.funnyName().name()
)
}
)
mockk - kotlin
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private fun setupBeforeAll() {
productIds = (1..100).map { db().productWithDependencies().apply().get() }
productIdsContainingWood.addAll(
(1..3).map { insertProductWithName("WoodyWoodOrange " + faker.funnyName().name()) }
)
productIdsContainingWood.addAll(
(1..3).map {
insertProductWithName(
faker.funnyName().name() + " WoodyWoodOrange " + faker.funnyName().name()
)
}
)
mockk - kotlin
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private fun setupBeforeAll() {
productIds = (1..100).map { db().productWithDependencies().apply().get() }
productIdsContainingWood.addAll(
(1..3).map { insertProductWithName("WoodyWoodOrange " + faker.funnyName().name()) }
)
productIdsContainingWood.addAll(
(1..3).map {
insertProductWithName(
faker.funnyName().name() + " WoodyWoodOrange " + faker.funnyName().name()
)
}
)
mockk - kotlin
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private fun setupBeforeAll() {
productIds = (1..100).map { db().productWithDependencies().apply().get() }
productIdsContainingWood.addAll(
(1..3).map { insertProductWithName("WoodyWoodOrange " + faker.funnyName().name()) }
)
productIdsContainingWood.addAll(
(1..3).map {
insertProductWithName(
faker.funnyName().name() + " WoodyWoodOrange " + faker.funnyName().name()
)
}
)
mockk - kotlin
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private fun setupBeforeAll() {
productIds = (1..100).map { db().productWithDependencies().apply().get() }
productIdsContainingWood.addAll(
(1..3).map { insertProductWithName("WoodyWoodOrange " + faker.funnyName().name()) }
)
productIdsContainingWood.addAll(
(1..3).map {
insertProductWithName(
faker.funnyName().name() + " WoodyWoodOrange " + faker.funnyName().name()
)
}
)
mockk - kotlin
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productIdsContainingWood.addAll(
(1..2).map { insertProductWithName(faker.funnyName().name() + " WoodyWoodOrange") }
)
cancelledProductId =
db().productWithDependencies("status" to Product.CANCELLED).apply().get()
idsOfStartedByWithCustomerDeadline.addAll(
listOf(
db().productWithDependencies("customer_deadline" to "2022-04-03T00:00:00.00Z").apply()
.get(),
db().productWithDependencies("customer_deadline" to "2022-04-02T00:00:00.00Z").apply()
.get(),
db().productWithDependencies("customer_deadline" to "2022-04-01T00:00:00.00Z").apply()
.get(),
)
)
}
mockk - kotlin
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productIdsContainingWood.addAll(
(1..2).map { insertProductWithName(faker.funnyName().name() + " WoodyWoodOrange") }
)
cancelledProductId =
db().productWithDependencies("status" to Product.CANCELLED).apply().get()
idsOfStartedByWithCustomerDeadline.addAll(
listOf(
db().productWithDependencies("customer_deadline" to "2022-04-03T00:00:00.00Z").apply()
.get(),
db().productWithDependencies("customer_deadline" to "2022-04-02T00:00:00.00Z").apply()
.get(),
db().productWithDependencies("customer_deadline" to "2022-04-01T00:00:00.00Z").apply()
.get(),
)
)
}
mockk - kotlin
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productIdsContainingWood.addAll(
(1..2).map { insertProductWithName(faker.funnyName().name() + " WoodyWoodOrange") }
)
cancelledProductId =
db().productWithDependencies("status" to Product.CANCELLED).apply().get()
idsOfStartedByWithCustomerDeadline.addAll(
listOf(
db().productWithDependencies("customer_deadline" to "2022-04-03T00:00:00.00Z").apply()
.get(),
db().productWithDependencies("customer_deadline" to "2022-04-02T00:00:00.00Z").apply()
.get(),
db().productWithDependencies("customer_deadline" to "2022-04-01T00:00:00.00Z").apply()
.get(),
)
)
}
mockk - kotlin
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productIdsContainingWood.addAll(
(1..2).map { insertProductWithName(faker.funnyName().name() + " WoodyWoodOrange") }
)
cancelledProductId =
db().productWithDependencies("status" to Product.CANCELLED).apply().get()
idsOfStartedByWithCustomerDeadline.addAll(
listOf(
db().productWithDependencies("customer_deadline" to "2022-04-03T00:00:00.00Z").apply()
.get(),
db().productWithDependencies("customer_deadline" to "2022-04-02T00:00:00.00Z").apply()
.get(),
db().productWithDependencies("customer_deadline" to "2022-04-01T00:00:00.00Z").apply()
.get(),
)
)
}
mockk - kotlin
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productIdsContainingWood.addAll(
(1..2).map { insertProductWithName(faker.funnyName().name() + " WoodyWoodOrange") }
)
cancelledProductId =
db().productWithDependencies("status" to Product.CANCELLED).apply().get()
idsOfStartedByWithCustomerDeadline.addAll(
listOf(
db().productWithDependencies("customer_deadline" to "2022-04-03T00:00:00.00Z").apply()
.get(),
db().productWithDependencies("customer_deadline" to "2022-04-02T00:00:00.00Z").apply()
.get(),
db().productWithDependencies("customer_deadline" to "2022-04-01T00:00:00.00Z").apply()
.get(),
)
)
}
mockk - kotlin
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productIdsContainingWood.addAll(
(1..2).map { insertProductWithName(faker.funnyName().name() + " WoodyWoodOrange") }
)
cancelledProductId =
db().productWithDependencies("status" to Product.CANCELLED).apply().get()
idsOfStartedByWithCustomerDeadline.addAll(
listOf(
db().productWithDependencies("customer_deadline" to "2022-04-03T00:00:00.00Z").apply()
.get(),
db().productWithDependencies("customer_deadline" to "2022-04-02T00:00:00.00Z").apply()
.get(),
db().productWithDependencies("customer_deadline" to "2022-04-01T00:00:00.00Z").apply()
.get(),
)
)
}
mockk - kotlin
Slide 67
Slide 67 text
productIdsContainingWood.addAll(
(1..2).map { insertProductWithName(faker.funnyName().name() + " WoodyWoodOrange") }
)
cancelledProductId =
db().productWithDependencies("status" to Product.CANCELLED).apply().get()
idsOfStartedByWithCustomerDeadline.addAll(
listOf(
db().productWithDependencies("customer_deadline" to "2022-04-03T00:00:00.00Z").apply()
.get(),
db().productWithDependencies("customer_deadline" to "2022-04-02T00:00:00.00Z").apply()
.get(),
db().productWithDependencies("customer_deadline" to "2022-04-01T00:00:00.00Z").apply()
.get(),
)
)
}
mockk - kotlin
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Slide 68 text
@Test
fun `list products sorted by creation at date ascending`() {
val pageQueryInput = PagingQueryInput(
size = 30, page = 0, sort = listOf(Sort.CREATED_AT_ASC)
)
val result = repository.listFilteredProducts("", pageQueryInput)
assertThat(result.currentPage).isEqualTo(0)
assertThat(result.totalPages).isEqualTo(4)
assertThat(result.totalElements).isEqualTo(112)
assertThat(result.content.size).isEqualTo(30)
assertThat(result.content).allSatisfy { productIds.subList(0, 29).contains(it.id) }
}
mockk - kotlin
Slide 69
Slide 69 text
@Test
fun `list products sorted by creation at date ascending`() {
val pageQueryInput = PagingQueryInput(
size = 30, page = 0, sort = listOf(Sort.CREATED_AT_ASC)
)
val result = repository.listFilteredProducts("", pageQueryInput)
assertThat(result.currentPage).isEqualTo(0)
assertThat(result.totalPages).isEqualTo(4)
assertThat(result.totalElements).isEqualTo(112)
assertThat(result.content.size).isEqualTo(30)
assertThat(result.content).allSatisfy { productIds.subList(0, 29).contains(it.id) }
}
mockk - kotlin
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Slide 70 text
@Test
fun `list products sorted by creation at date ascending`() {
val pageQueryInput = PagingQueryInput(
size = 30, page = 0, sort = listOf(Sort.CREATED_AT_ASC)
)
val result = repository.listFilteredProducts("", pageQueryInput)
assertThat(result.currentPage).isEqualTo(0)
assertThat(result.totalPages).isEqualTo(4)
assertThat(result.totalElements).isEqualTo(112)
assertThat(result.content.size).isEqualTo(30)
assertThat(result.content).allSatisfy { productIds.subList(0, 29).contains(it.id) }
}
mockk - kotlin
Slide 71
Slide 71 text
@Test
fun `list products sorted by creation at date ascending`() {
val pageQueryInput = PagingQueryInput(
size = 30, page = 0, sort = listOf(Sort.CREATED_AT_ASC)
)
val result = repository.listFilteredProducts("", pageQueryInput)
assertThat(result.currentPage).isEqualTo(0)
assertThat(result.totalPages).isEqualTo(4)
assertThat(result.totalElements).isEqualTo(112)
assertThat(result.content.size).isEqualTo(30)
assertThat(result.content).allSatisfy { productIds.subList(0, 29).contains(it.id) }
}
mockk - kotlin
Slide 72
Slide 72 text
@Test
fun `list products sorted by creation at date ascending`() {
val pageQueryInput = PagingQueryInput(
size = 30, page = 0, sort = listOf(Sort.CREATED_AT_ASC)
)
val result = repository.listFilteredProducts("", pageQueryInput)
assertThat(result.currentPage).isEqualTo(0)
assertThat(result.totalPages).isEqualTo(4)
assertThat(result.totalElements).isEqualTo(112)
assertThat(result.content.size).isEqualTo(30)
assertThat(result.content).allSatisfy { productIds.subList(0, 29).contains(it.id) }
}
mockk - kotlin
Slide 73
Slide 73 text
@Test
fun `list products sorted by creation at date ascending`() {
val pageQueryInput = PagingQueryInput(
size = 30, page = 0, sort = listOf(Sort.CREATED_AT_ASC)
)
val result = repository.listFilteredProducts("", pageQueryInput)
assertThat(result.currentPage).isEqualTo(0)
assertThat(result.totalPages).isEqualTo(4)
assertThat(result.totalElements).isEqualTo(112)
assertThat(result.content.size).isEqualTo(30)
assertThat(result.content).allSatisfy { productIds.subList(0, 29).contains(it.id) }
}
mockk - kotlin
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Slide 74 text
@Test
fun `list products sorted by creation at date ascending`() {
val pageQueryInput = PagingQueryInput(
size = 30, page = 0, sort = listOf(Sort.CREATED_AT_ASC)
)
val result = repository.listFilteredProducts("", pageQueryInput)
assertThat(result.currentPage).isEqualTo(0)
assertThat(result.totalPages).isEqualTo(4)
assertThat(result.totalElements).isEqualTo(112)
assertThat(result.content.size).isEqualTo(30)
assertThat(result.content).allSatisfy { productIds.subList(0, 29).contains(it.id) }
}
mockk - kotlin
Slide 75
Slide 75 text
@Test
fun `list products sorted by creation at date ascending`() {
val pageQueryInput = PagingQueryInput(
size = 30, page = 0, sort = listOf(Sort.CREATED_AT_ASC)
)
val result = repository.listFilteredProducts("", pageQueryInput)
assertThat(result.currentPage).isEqualTo(0)
assertThat(result.totalPages).isEqualTo(4)
assertThat(result.totalElements).isEqualTo(112)
assertThat(result.content.size).isEqualTo(30)
assertThat(result.content).allSatisfy { productIds.subList(0, 29).contains(it.id) }
}
mockk - kotlin
Slide 76
Slide 76 text
@Test
fun `list products sorted by creation at date ascending`() {
val pageQueryInput = PagingQueryInput(
size = 30, page = 0, sort = listOf(Sort.CREATED_AT_ASC)
)
val result = repository.listFilteredProducts("", pageQueryInput)
assertThat(result.currentPage).isEqualTo(0)
assertThat(result.totalPages).isEqualTo(4)
assertThat(result.totalElements).isEqualTo(112)
assertThat(result.content.size).isEqualTo(30)
assertThat(result.content).allSatisfy { productIds.subList(0, 29).contains(it.id) }
}
mockk - kotlin
Slide 77
Slide 77 text
@Test
fun `list products sorted by creation at date ascending`() {
val pageQueryInput = PagingQueryInput(
size = 30, page = 0, sort = listOf(Sort.CREATED_AT_ASC)
)
val result = repository.listFilteredProducts("", pageQueryInput)
assertThat(result.currentPage).isEqualTo(0)
assertThat(result.totalPages).isEqualTo(4)
assertThat(result.totalElements).isEqualTo(112)
assertThat(result.content.size).isEqualTo(30)
assertThat(result.content).allSatisfy { productIds.subList(0, 29).contains(it.id) }
}
mockk - kotlin
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Slide 78 text
No content
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Slide 79 text
@Test
fun `list products sorted by creation at date ascending`() {
val pageQueryInput = PagingQueryInput(
size = 30, page = 0, sort = listOf(Sort.CREATED_AT_ASC)
)
val result = repository.listFilteredProducts("", pageQueryInput)
assertThat(result.currentPage).isEqualTo(0)
assertThat(result.totalPages).isEqualTo(4)
assertThat(result.totalElements).isEqualTo(112)
assertThat(result.content.size).isEqualTo(30)
assertThat(result.content).allSatisfy { productIds.subList(0, 29).contains(it.id) }
}
mockk - kotlin
Slide 80
Slide 80 text
@Test
fun `list products sorted by creation at date descending`() {
val pageQueryInput = PagingQueryInput(
size = 30, page = 0, sort = listOf(Sort.CREATED_AT_DESC)
)
val result = repository.listFilteredProducts("", pageQueryInput)
assertThat(result.currentPage).isEqualTo(0)
assertThat(result.totalPages).isEqualTo(4)
assertThat(result.totalElements).isEqualTo(112)
assertThat(result.content.size).isEqualTo(30)
assertThat(result.content).allSatisfy { productIds.subList(0, 29).contains(it.id) }
}
mockk - kotlin
Slide 81
Slide 81 text
● Sorting
● Pagination
Points of attention
WHAT COULD WE DO?
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Focus on a single thing
SORTING
Slide 83
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@Test
fun `list products sorted by creation at date ascending`() {
val pageQueryInput = PagingQueryInput(
size = 30, page = 0, sort = listOf(Sort.CREATED_AT_ASC)
)
val result = repository.listFilteredProducts("", pageQueryInput)
assertThat(result.currentPage).isEqualTo(0)
assertThat(result.totalPages).isEqualTo(4)
assertThat(result.totalElements).isEqualTo(112)
assertThat(result.content.size).isEqualTo(30)
assertThat(result.content).allSatisfy { productIds.subList(0, 29).contains(it.id) }
}
mockk - kotlin
Slide 84
Slide 84 text
@Test
fun `list products sorted by ascending creation date`() {
db().productWithDependencies("created_at" to "2022-04-03T00:00:00.00Z").apply()
db().productWithDependencies("created_at" to "2022-04-02T00:00:00.00Z").apply()
db().productWithDependencies("created_at" to "2022-04-01T00:00:00.00Z").apply()
val pageQueryInput = PagingQueryInput(sort = listOf(SortOrder.CREATED_AT_ASC))
val result = repository.listFilteredProducts("", pageQueryInput)
assertThat(result.content[0].createdAt).isEqualTo("2022-04-01T00:00:00.00Z")
assertThat(result.content[1].createdAt).isEqualTo("2022-04-02T00:00:00.00Z")
assertThat(result.content[2].createdAt).isEqualTo("2022-04-03T00:00:00.00Z")
}
mockk - kotlin
Slide 85
Slide 85 text
@Test
fun `list products sorted by ascending creation date`() {
db().productWithDependencies("created_at" to "2022-04-03T00:00:00.00Z").apply()
db().productWithDependencies("created_at" to "2022-04-02T00:00:00.00Z").apply()
db().productWithDependencies("created_at" to "2022-04-01T00:00:00.00Z").apply()
val pageQueryInput = PagingQueryInput(sort = listOf(SortOrder.CREATED_AT_ASC))
val result = repository.listFilteredProducts("", pageQueryInput)
assertThat(result.content[0].createdAt).isEqualTo("2022-04-01T00:00:00.00Z")
assertThat(result.content[1].createdAt).isEqualTo("2022-04-02T00:00:00.00Z")
assertThat(result.content[2].createdAt).isEqualTo("2022-04-03T00:00:00.00Z")
}
mockk - kotlin
Slide 86
Slide 86 text
@Test
fun `list products sorted by ascending creation date`() {
db().productWithDependencies("created_at" to "2022-04-03T00:00:00.00Z").apply()
db().productWithDependencies("created_at" to "2022-04-02T00:00:00.00Z").apply()
db().productWithDependencies("created_at" to "2022-04-01T00:00:00.00Z").apply()
val pageQueryInput = PagingQueryInput(sort = listOf(SortOrder.CREATED_AT_ASC))
val result = repository.listFilteredProducts("", pageQueryInput)
assertThat(result.content[0].createdAt).isEqualTo("2022-04-01T00:00:00.00Z")
assertThat(result.content[1].createdAt).isEqualTo("2022-04-02T00:00:00.00Z")
assertThat(result.content[2].createdAt).isEqualTo("2022-04-03T00:00:00.00Z")
}
mockk - kotlin
Slide 87
Slide 87 text
@Test
fun `list products sorted by ascending creation date`() {
db().productWithDependencies("created_at" to "2022-04-03T00:00:00.00Z").apply()
db().productWithDependencies("created_at" to "2022-04-02T00:00:00.00Z").apply()
db().productWithDependencies("created_at" to "2022-04-01T00:00:00.00Z").apply()
val pageQueryInput = PagingQueryInput(sort = listOf(SortOrder.CREATED_AT_ASC))
val result = repository.listFilteredProducts("", pageQueryInput)
assertThat(result.content[0].createdAt).isEqualTo("2022-04-01T00:00:00.00Z")
assertThat(result.content[1].createdAt).isEqualTo("2022-04-02T00:00:00.00Z")
assertThat(result.content[2].createdAt).isEqualTo("2022-04-03T00:00:00.00Z")
}
mockk - kotlin
Slide 88
Slide 88 text
@Test
fun `list products sorted by ascending creation date`() {
db().productWithDependencies("created_at" to "2022-04-03T00:00:00.00Z").apply()
db().productWithDependencies("created_at" to "2022-04-02T00:00:00.00Z").apply()
db().productWithDependencies("created_at" to "2022-04-01T00:00:00.00Z").apply()
val pageQueryInput = PagingQueryInput(sort = listOf(SortOrder.CREATED_AT_ASC))
val result = repository.listFilteredProducts("", pageQueryInput)
assertThat(result.content[0].createdAt).isEqualTo("2022-04-01T00:00:00.00Z")
assertThat(result.content[1].createdAt).isEqualTo("2022-04-02T00:00:00.00Z")
assertThat(result.content[2].createdAt).isEqualTo("2022-04-03T00:00:00.00Z")
}
mockk - kotlin
Slide 89
Slide 89 text
@Test
fun `list products sorted by ascending creation date`() {
db().productWithDependencies("created_at" to "2022-04-03T00:00:00.00Z").apply()
db().productWithDependencies("created_at" to "2022-04-02T00:00:00.00Z").apply()
db().productWithDependencies("created_at" to "2022-04-01T00:00:00.00Z").apply()
val pageQueryInput = PagingQueryInput(sort = listOf(SortOrder.CREATED_AT_ASC))
val result = repository.listFilteredProducts("", pageQueryInput)
assertThat(result.content[0].createdAt).isEqualTo("2022-04-01T00:00:00.00Z")
assertThat(result.content[1].createdAt).isEqualTo("2022-04-02T00:00:00.00Z")
assertThat(result.content[2].createdAt).isEqualTo("2022-04-03T00:00:00.00Z")
}
mockk - kotlin
Slide 90
Slide 90 text
@Test
fun `list products sorted by ascending creation date`() {
db().productWithDependencies("created_at" to "2022-04-03T00:00:00.00Z").apply()
db().productWithDependencies("created_at" to "2022-04-02T00:00:00.00Z").apply()
db().productWithDependencies("created_at" to "2022-04-01T00:00:00.00Z").apply()
val pageQueryInput = PagingQueryInput(sort = listOf(SortOrder.CREATED_AT_ASC))
val result = repository.listFilteredProducts("", pageQueryInput)
assertThat(result.content[0].createdAt).isEqualTo("2022-04-01T00:00:00.00Z")
assertThat(result.content[1].createdAt).isEqualTo("2022-04-02T00:00:00.00Z")
assertThat(result.content[2].createdAt).isEqualTo("2022-04-03T00:00:00.00Z")
}
mockk - kotlin
Slide 91
Slide 91 text
@Test
fun `list products sorted by ascending creation date`() {
db().productWithDependencies("created_at" to "2022-04-03T00:00:00.00Z").apply()
db().productWithDependencies("created_at" to "2022-04-02T00:00:00.00Z").apply()
db().productWithDependencies("created_at" to "2022-04-01T00:00:00.00Z").apply()
val pageQueryInput = PagingQueryInput(sort = listOf(SortOrder.CREATED_AT_ASC))
val result = repository.listFilteredProducts("", pageQueryInput)
assertThat(result.content[0].createdAt).isEqualTo("2022-04-01T00:00:00.00Z")
assertThat(result.content[1].createdAt).isEqualTo("2022-04-02T00:00:00.00Z")
assertThat(result.content[2].createdAt).isEqualTo("2022-04-03T00:00:00.00Z")
}
mockk - kotlin
Slide 92
Slide 92 text
@Test
fun `list products sorted by creation at date descending`() {
db().productWithDependencies("created_at" to "2022-04-01T00:00:00.00Z").apply()
db().productWithDependencies("created_at" to "2022-04-02T00:00:00.00Z").apply()
db().productWithDependencies("created_at" to "2022-04-03T00:00:00.00Z").apply()
val pageQueryInput = PagingQueryInput(sort = listOf(SortOrder.CREATED_AT_DESC))
val result = repository.listFilteredProducts("", pageQueryInput)
assertThat(result.content[0].createdAt).isEqualTo("2022-04-03T00:00:00.00Z")
assertThat(result.content[1].createdAt).isEqualTo("2022-04-02T00:00:00.00Z")
assertThat(result.content[2].createdAt).isEqualTo("2022-04-01T00:00:00.00Z")
}
mockk - kotlin
Slide 93
Slide 93 text
@Test
fun `list products sorted by creation at date descending`() {
db().productWithDependencies("created_at" to "2022-04-01T00:00:00.00Z").apply()
db().productWithDependencies("created_at" to "2022-04-02T00:00:00.00Z").apply()
db().productWithDependencies("created_at" to "2022-04-03T00:00:00.00Z").apply()
val pageQueryInput = PagingQueryInput(sort = listOf(SortOrder.CREATED_AT_DESC))
val result = repository.listFilteredProducts("", pageQueryInput)
assertThat(result.content[0].createdAt).isEqualTo("2022-04-03T00:00:00.00Z")
assertThat(result.content[1].createdAt).isEqualTo("2022-04-02T00:00:00.00Z")
assertThat(result.content[2].createdAt).isEqualTo("2022-04-01T00:00:00.00Z")
}
mockk - kotlin
Slide 94
Slide 94 text
@Test
fun `list products sorted by creation at date descending`() {
db().productWithDependencies("created_at" to "2022-04-01T00:00:00.00Z").apply()
db().productWithDependencies("created_at" to "2022-04-02T00:00:00.00Z").apply()
db().productWithDependencies("created_at" to "2022-04-03T00:00:00.00Z").apply()
val pageQueryInput = PagingQueryInput(sort = listOf(SortOrder.CREATED_AT_DESC))
val result = repository.listFilteredProducts("", pageQueryInput)
assertThat(result.content[0].createdAt).isEqualTo("2022-04-03T00:00:00.00Z")
assertThat(result.content[1].createdAt).isEqualTo("2022-04-02T00:00:00.00Z")
assertThat(result.content[2].createdAt).isEqualTo("2022-04-01T00:00:00.00Z")
}
mockk - kotlin
Slide 95
Slide 95 text
@Test
fun `list products sorted by creation at date descending`() {
db().productWithDependencies("created_at" to "2022-04-01T00:00:00.00Z").apply()
db().productWithDependencies("created_at" to "2022-04-02T00:00:00.00Z").apply()
db().productWithDependencies("created_at" to "2022-04-03T00:00:00.00Z").apply()
val pageQueryInput = PagingQueryInput(sort = listOf(SortOrder.CREATED_AT_DESC))
val result = repository.listFilteredProducts("", pageQueryInput)
assertThat(result.content[0].createdAt).isEqualTo("2022-04-03T00:00:00.00Z")
assertThat(result.content[1].createdAt).isEqualTo("2022-04-02T00:00:00.00Z")
assertThat(result.content[2].createdAt).isEqualTo("2022-04-01T00:00:00.00Z")
}
mockk - kotlin
Slide 96
Slide 96 text
@Test
fun `list products sorted by creation at date descending`() {
db().productWithDependencies("created_at" to "2022-04-01T00:00:00.00Z").apply()
db().productWithDependencies("created_at" to "2022-04-02T00:00:00.00Z").apply()
db().productWithDependencies("created_at" to "2022-04-03T00:00:00.00Z").apply()
val pageQueryInput = PagingQueryInput(sort = listOf(SortOrder.CREATED_AT_DESC))
val result = repository.listFilteredProducts("", pageQueryInput)
assertThat(result.content[0].createdAt).isEqualTo("2022-04-03T00:00:00.00Z")
assertThat(result.content[1].createdAt).isEqualTo("2022-04-02T00:00:00.00Z")
assertThat(result.content[2].createdAt).isEqualTo("2022-04-01T00:00:00.00Z")
}
mockk - kotlin
Slide 97
Slide 97 text
@Test
fun `list products sorted by creation at date descending`() {
db().productWithDependencies("created_at" to "2022-04-01T00:00:00.00Z").apply()
db().productWithDependencies("created_at" to "2022-04-02T00:00:00.00Z").apply()
db().productWithDependencies("created_at" to "2022-04-03T00:00:00.00Z").apply()
val pageQueryInput = PagingQueryInput(sort = listOf(SortOrder.CREATED_AT_DESC))
val result = repository.listFilteredProducts("", pageQueryInput)
assertThat(result.content[0].createdAt).isEqualTo("2022-04-03T00:00:00.00Z")
assertThat(result.content[1].createdAt).isEqualTo("2022-04-02T00:00:00.00Z")
assertThat(result.content[2].createdAt).isEqualTo("2022-04-01T00:00:00.00Z")
}
mockk - kotlin
Slide 98
Slide 98 text
@Test
fun `list products sorted by creation at date descending`() {
db().productWithDependencies("created_at" to "2022-04-01T00:00:00.00Z").apply()
db().productWithDependencies("created_at" to "2022-04-02T00:00:00.00Z").apply()
db().productWithDependencies("created_at" to "2022-04-03T00:00:00.00Z").apply()
val pageQueryInput = PagingQueryInput(sort = listOf(SortOrder.CREATED_AT_DESC))
val result = repository.listFilteredProducts("", pageQueryInput)
assertThat(result.content[0].createdAt).isEqualTo("2022-04-03T00:00:00.00Z")
assertThat(result.content[1].createdAt).isEqualTo("2022-04-02T00:00:00.00Z")
assertThat(result.content[2].createdAt).isEqualTo("2022-04-01T00:00:00.00Z")
}
mockk - kotlin
Slide 99
Slide 99 text
@Test
fun `list products sorted by creation at date descending`() {
db().productWithDependencies("created_at" to "2022-04-01T00:00:00.00Z").apply()
db().productWithDependencies("created_at" to "2022-04-02T00:00:00.00Z").apply()
db().productWithDependencies("created_at" to "2022-04-03T00:00:00.00Z").apply()
val pageQueryInput = PagingQueryInput(sort = listOf(SortOrder.CREATED_AT_DESC))
val result = repository.listFilteredProducts("", pageQueryInput)
assertThat(result.content[0].createdAt).isEqualTo("2022-04-03T00:00:00.00Z")
assertThat(result.content[1].createdAt).isEqualTo("2022-04-02T00:00:00.00Z")
assertThat(result.content[2].createdAt).isEqualTo("2022-04-01T00:00:00.00Z")
}
mockk - kotlin
Slide 100
Slide 100 text
Focus on a single thing
PAGINATION
Slide 101
Slide 101 text
@Test
fun `should list products`() {
insertTenProducts()
val page = PagingQueryInput(size = 10)
val result = repository.listFilteredProductBriefs(null, null, page)
assertThat(result.currentPage).isEqualTo(0)
assertThat(result.totalPages).isEqualTo(1)
}
mockk - kotlin
Slide 102
Slide 102 text
@Test
fun `should list products`() {
insertTenProducts()
val page = PagingQueryInput(size = 10)
val result = repository.listFilteredProductBriefs(null, null, page)
assertThat(result.currentPage).isEqualTo(0)
assertThat(result.totalPages).isEqualTo(1)
}
mockk - kotlin
Slide 103
Slide 103 text
@Test
fun `should list products`() {
insertTenProducts()
val page = PagingQueryInput(size = 10)
val result = repository.listFilteredProductBriefs(null, null, page)
assertThat(result.currentPage).isEqualTo(0)
assertThat(result.totalPages).isEqualTo(1)
}
mockk - kotlin
Slide 104
Slide 104 text
@Test
fun `should list products`() {
insertTenProducts()
val page = PagingQueryInput(size = 10)
val result = repository.listFilteredProductBriefs(null, null, page)
assertThat(result.currentPage).isEqualTo(0)
assertThat(result.totalPages).isEqualTo(1)
}
mockk - kotlin
Slide 105
Slide 105 text
@Test
fun `should list products`() {
insertTenProducts()
val page = PagingQueryInput(size = 10)
val result = repository.listFilteredProductBriefs(null, null, page)
assertThat(result.currentPage).isEqualTo(0)
assertThat(result.totalPages).isEqualTo(1)
}
mockk - kotlin
Slide 106
Slide 106 text
@Test
fun `should have one page when the list is ten`()
{
insertTenProducts()
val page = PagingQueryInput(size = 10)
val result = repository.listFilteredProducts(
null,
null,
Page
)
assertThat(result.totalPages).isEqualTo(1)
}
mockk - kotlin
Slide 107
Slide 107 text
@Test
fun `should have one page when the list is ten`()
{
insertTenProducts()
val page = PagingQueryInput(size = 10)
val result = repository.listFilteredProducts(
null,
null,
Page
)
assertThat(result.totalPages).isEqualTo(1)
}
mockk - kotlin
Slide 108
Slide 108 text
@Test
fun `should have one page when the list is ten`()
{
insertTenProducts()
val page = PagingQueryInput(size = 10)
val result = repository.listFilteredProducts(
null,
null,
Page
)
assertThat(result.totalPages).isEqualTo(1)
}
mockk - kotlin
Slide 109
Slide 109 text
@Test
fun `should have one page when the list is ten`()
{
insertTenProducts()
val page = PagingQueryInput(size = 10)
val result = repository.listFilteredProducts(
null,
null,
Page
)
assertThat(result.totalPages).isEqualTo(1)
}
mockk - kotlin
Slide 110
Slide 110 text
@Test
fun `should have one page when the list is ten`()
{
insertTenProducts()
val page = PagingQueryInput(size = 10)
val result = repository.listFilteredProducts(
null,
null,
Page
)
assertThat(result.totalPages).isEqualTo(1)
}
mockk - kotlin
Slide 111
Slide 111 text
@Test
fun `should have one page when the list is ten`()
{
insertTenProducts()
val page = PagingQueryInput(size = 10)
val result = repository.listFilteredProducts(
null,
null,
Page
)
assertThat(result.totalPages).isEqualTo(1)
}
mockk - kotlin
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mockk - kotlin
@Test
fun `should be on the first page by default`()
{
insertTenProducts()
val page = PagingQueryInput(size = 10)
val result = repository.listFilteredProducts(
null,
null,
Page
)
assertThat(result.currentPage).isEqualTo(0)
}
Slide 113
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mockk - kotlin
@Test
fun `should be on the first page by default`()
{
insertTenProducts()
val page = PagingQueryInput(size = 10)
val result = repository.listFilteredProducts(
null,
null,
Page
)
assertThat(result.currentPage).isEqualTo(0)
}
Slide 114
Slide 114 text
mockk - kotlin
@Test
fun `should be on the first page by default`()
{
insertTenProducts()
val page = PagingQueryInput(size = 10)
val result = repository.listFilteredProducts(
null,
null,
Page
)
assertThat(result.currentPage).isEqualTo(0)
}
Slide 115
Slide 115 text
mockk - kotlin
@Test
fun `should be on the first page by default`()
{
insertTenProducts()
val page = PagingQueryInput(size = 10)
val result = repository.listFilteredProducts(
null,
null,
Page
)
assertThat(result.currentPage).isEqualTo(0)
}
Slide 116
Slide 116 text
@Test
fun `should have one page when the list is ten`()
{
insertTenProducts()
val page = PagingQueryInput(size = 10)
val result = repository.listFilteredProducts(
null,
null,
Page
)
assertThat(result.totalPages).isEqualTo(1)
}
mockk - kotlin
@Test
fun `should be on the first page by default`()
{
insertTenProducts()
val page = PagingQueryInput(size = 10)
val result = repository.listFilteredProducts(
null,
null,
Page
)
assertThat(result.currentPage).isEqualTo(0)
}
Slide 117
Slide 117 text
5. The Free Ride - 🏆8
Crafting code
Slide 118
Slide 118 text
describe('Request.headers', function () {
it('should work', async () => {
const { page, server, isChrome } = getTestState();
const response = await page.goto(server.EMPTY_PAGE);
if (isChrome)
expect(response.request().headers()['user-agent']).toContain('Chrome');
else
expect(response.request().headers()['user-agent']).toContain('Firefox');
});
});
describe('Request.headers', function () {
itChromeOnly('should define Chrome as user agent header', async () => {
const { page, server } = getTestState();
const response = await page.goto(server.EMPTY_PAGE);
expect(response.request().headers()['user-agent']).toContain('Chrome');
});
itFirefoxOnly('should define Firefox as user agent header', async () => {
const { page, server } = getTestState();
const response = await page.goto(server.EMPTY_PAGE);
expect(response.request().headers()['user-agent']).toContain('Firefox');
});
});
Puppeteer
A
Slide 119
Slide 119 text
describe('Request.headers', function () {
it('should work', async () => {
const { page, server, isChrome } = getTestState();
const response = await page.goto(server.EMPTY_PAGE);
if (isChrome)
expect(response.request().headers()['user-agent']).toContain('Chrome');
else
expect(response.request().headers()['user-agent']).toContain('Firefox');
});
});
describe('Request.headers', function () {
itChromeOnly('should define Chrome as user agent header', async () => {
const { page, server } = getTestState();
const response = await page.goto(server.EMPTY_PAGE);
expect(response.request().headers()['user-agent']).toContain('Chrome');
});
itFirefoxOnly('should define Firefox as user agent header', async () => {
const { page, server } = getTestState();
const response = await page.goto(server.EMPTY_PAGE);
expect(response.request().headers()['user-agent']).toContain('Firefox');
});
});
Puppeteer
B
Slide 120
Slide 120 text
describe('Request.headers', function () {
it('should work', async () => {
const { page, server, isChrome } = getTestState();
const response = await page.goto(server.EMPTY_PAGE);
if (isChrome)
expect(response.request().headers()['user-agent']).toContain('Chrome');
else
expect(response.request().headers()['user-agent']).toContain('Firefox');
});
});
describe('Request.headers', function () {
itChromeOnly('should define Chrome as user agent header', async () => {
const { page, server } = getTestState();
const response = await page.goto(server.EMPTY_PAGE);
expect(response.request().headers()['user-agent']).toContain('Chrome');
});
itFirefoxOnly('should define Firefox as user agent header', async () => {
const { page, server } = getTestState();
const response = await page.goto(server.EMPTY_PAGE);
expect(response.request().headers()['user-agent']).toContain('Firefox');
});
});
Puppeteer
A
B
Slide 121
Slide 121 text
describe('Request.headers', function () {
it('should work', async () => {
const { page, server, isChrome } = getTestState();
const response = await page.goto(server.EMPTY_PAGE);
if (isChrome)
expect(response.request().headers()['user-agent']).toContain('Chrome');
else
expect(response.request().headers()['user-agent']).toContain('Firefox');
});
});
describe('Request.headers', function () {
itChromeOnly('should define Chrome as user agent header', async () => {
const { page, server } = getTestState();
const response = await page.goto(server.EMPTY_PAGE);
expect(response.request().headers()['user-agent']).toContain('Chrome');
});
itFirefoxOnly('should define Firefox as user agent header', async () => {
const { page, server } = getTestState();
const response = await page.goto(server.EMPTY_PAGE);
expect(response.request().headers()['user-agent']).toContain('Firefox');
});
});
Puppeteer
A
B
Could you spot something that seems to be a smell?
Slide 122
Slide 122 text
describe('Request.headers', function () {
it('should work', async () => {
const { page, server, isChrome } = getTestState();
const response = await page.goto(server.EMPTY_PAGE);
if (isChrome)
expect(response.request().headers()['user-agent']).toContain('Chrome');
else
expect(response.request().headers()['user-agent']).toContain('Firefox');
});
});
describe('Request.headers', function () {
itChromeOnly('should define Chrome as user agent header', async () => {
const { page, server } = getTestState();
const response = await page.goto(server.EMPTY_PAGE);
expect(response.request().headers()['user-agent']).toContain('Chrome');
});
itFirefoxOnly('should define Firefox as user agent header', async () => {
const { page, server } = getTestState();
const response = await page.goto(server.EMPTY_PAGE);
expect(response.request().headers()['user-agent']).toContain('Firefox');
});
});
Puppeteer
A
B
What about anti-patterns?
Slide 123
Slide 123 text
5. The Free Ride - 🏆8
Rather than write a new test case method to
test another feature or functionality, a new
assertion rides along in an existing test case.
Crafting code
Slide 124
Slide 124 text
it('Page.Events.RequestFailed', async () => {
const { page, server, isChrome } = getTestState();
await page.setRequestInterception(true);
page.on('request', (request) => {
if (request.url().endsWith('css')) request.abort();
else request.continue();
});
const failedRequests = [];
page.on('requestfailed', (request) => failedRequests.push(request));
await page.goto(server.PREFIX + '/one-style.html');
expect(failedRequests.length).toBe(1);
expect(failedRequests[0].url()).toContain('one-style.css');
expect(failedRequests[0].response()).toBe(null);
expect(failedRequests[0].resourceType()).toBe('stylesheet');
if (isChrome)
expect(failedRequests[0].failure().errorText).toBe('net::ERR_FAILED');
else
expect(failedRequests[0].failure().errorText).toBe('NS_ERROR_FAILURE');
expect(failedRequests[0].frame()).toBeTruthy();
});
Javascript/Typescript - Puppeteer
Slide 125
Slide 125 text
it('Page.Events.RequestFailed', async () => {
const { page, server, isChrome } = getTestState();
await page.setRequestInterception(true);
page.on('request', (request) => {
if (request.url().endsWith('css')) request.abort();
else request.continue();
});
const failedRequests = [];
page.on('requestfailed', (request) => failedRequests.push(request));
await page.goto(server.PREFIX + '/one-style.html');
expect(failedRequests.length).toBe(1);
expect(failedRequests[0].url()).toContain('one-style.css');
expect(failedRequests[0].response()).toBe(null);
expect(failedRequests[0].resourceType()).toBe('stylesheet');
if (isChrome)
expect(failedRequests[0].failure().errorText).toBe('net::ERR_FAILED');
else
expect(failedRequests[0].failure().errorText).toBe('NS_ERROR_FAILURE');
expect(failedRequests[0].frame()).toBeTruthy();
});
Javascript/Typescript - Puppeteer
Slide 126
Slide 126 text
it('Page.Events.RequestFailed', async () => {
const { page, server, isChrome } = getTestState();
await page.setRequestInterception(true);
page.on('request', (request) => {
if (request.url().endsWith('css')) request.abort();
else request.continue();
});
const failedRequests = [];
page.on('requestfailed', (request) => failedRequests.push(request));
await page.goto(server.PREFIX + '/one-style.html');
expect(failedRequests.length).toBe(1);
expect(failedRequests[0].url()).toContain('one-style.css');
expect(failedRequests[0].response()).toBe(null);
expect(failedRequests[0].resourceType()).toBe('stylesheet');
if (isChrome)
expect(failedRequests[0].failure().errorText).toBe('net::ERR_FAILED');
else
expect(failedRequests[0].failure().errorText).toBe('NS_ERROR_FAILURE');
expect(failedRequests[0].frame()).toBeTruthy();
});
Javascript/Typescript - Puppeteer
Slide 127
Slide 127 text
it('Page.Events.RequestFailed', async () => {
const { page, server, isChrome } = getTestState();
await page.setRequestInterception(true);
page.on('request', (request) => {
if (request.url().endsWith('css')) request.abort();
else request.continue();
});
const failedRequests = [];
page.on('requestfailed', (request) => failedRequests.push(request));
await page.goto(server.PREFIX + '/one-style.html');
expect(failedRequests.length).toBe(1);
expect(failedRequests[0].url()).toContain('one-style.css');
expect(failedRequests[0].response()).toBe(null);
expect(failedRequests[0].resourceType()).toBe('stylesheet');
if (isChrome)
expect(failedRequests[0].failure().errorText).toBe('net::ERR_FAILED');
else
expect(failedRequests[0].failure().errorText).toBe('NS_ERROR_FAILURE');
expect(failedRequests[0].frame()).toBeTruthy();
});
Javascript/Typescript - Puppeteer
Slide 128
Slide 128 text
it('Page.Events.RequestFailed', async () => {
const { page, server, isChrome } = getTestState();
await page.setRequestInterception(true);
page.on('request', (request) => {
if (request.url().endsWith('css')) request.abort();
else request.continue();
});
const failedRequests = [];
page.on('requestfailed', (request) => failedRequests.push(request));
await page.goto(server.PREFIX + '/one-style.html');
expect(failedRequests.length).toBe(1);
expect(failedRequests[0].url()).toContain('one-style.css');
expect(failedRequests[0].response()).toBe(null);
expect(failedRequests[0].resourceType()).toBe('stylesheet');
if (isChrome)
expect(failedRequests[0].failure().errorText).toBe('net::ERR_FAILED');
else
expect(failedRequests[0].failure().errorText).toBe('NS_ERROR_FAILURE');
expect(failedRequests[0].frame()).toBeTruthy();
});
Javascript/Typescript - Puppeteer
Slide 129
Slide 129 text
it('Page.Events.RequestFailed', async () => {
const { page, server, isChrome } = getTestState();
await page.setRequestInterception(true);
page.on('request', (request) => {
if (request.url().endsWith('css')) request.abort();
else request.continue();
});
const failedRequests = [];
page.on('requestfailed', (request) => failedRequests.push(request));
await page.goto(server.PREFIX + '/one-style.html');
expect(failedRequests.length).toBe(1);
expect(failedRequests[0].url()).toContain('one-style.css');
expect(failedRequests[0].response()).toBe(null);
expect(failedRequests[0].resourceType()).toBe('stylesheet');
if (isChrome)
expect(failedRequests[0].failure().errorText).toBe('net::ERR_FAILED');
else
expect(failedRequests[0].failure().errorText).toBe('NS_ERROR_FAILURE');
expect(failedRequests[0].frame()).toBeTruthy();
});
Javascript/Typescript - Puppeteer
Slide 130
Slide 130 text
it('Page.Events.RequestFailed', async () => {
const { page, server, isChrome } = getTestState();
await page.setRequestInterception(true);
page.on('request', (request) => {
if (request.url().endsWith('css')) request.abort();
else request.continue();
});
const failedRequests = [];
page.on('requestfailed', (request) => failedRequests.push(request));
await page.goto(server.PREFIX + '/one-style.html');
expect(failedRequests.length).toBe(1);
expect(failedRequests[0].url()).toContain('one-style.css');
expect(failedRequests[0].response()).toBe(null);
expect(failedRequests[0].resourceType()).toBe('stylesheet');
if (isChrome)
expect(failedRequests[0].failure().errorText).toBe('net::ERR_FAILED');
else
expect(failedRequests[0].failure().errorText).toBe('NS_ERROR_FAILURE');
expect(failedRequests[0].frame()).toBeTruthy();
});
Javascript/Typescript - Puppeteer
Slide 131
Slide 131 text
it('Page.Events.RequestFailed', async () => {
const { page, server, isChrome } = getTestState();
await page.setRequestInterception(true);
page.on('request', (request) => {
if (request.url().endsWith('css')) request.abort();
else request.continue();
});
const failedRequests = [];
page.on('requestfailed', (request) => failedRequests.push(request));
await page.goto(server.PREFIX + '/one-style.html');
expect(failedRequests.length).toBe(1);
expect(failedRequests[0].url()).toContain('one-style.css');
expect(failedRequests[0].response()).toBe(null);
expect(failedRequests[0].resourceType()).toBe('stylesheet');
if (isChrome)
expect(failedRequests[0].failure().errorText).toBe('net::ERR_FAILED');
else
expect(failedRequests[0].failure().errorText).toBe('NS_ERROR_FAILURE');
expect(failedRequests[0].frame()).toBeTruthy();
});
Javascript/Typescript - Puppeteer
Slide 132
Slide 132 text
it('Page.Events.RequestFailed', async () => {
const { page, server, isChrome } = getTestState();
await page.setRequestInterception(true);
page.on('request', (request) => {
if (request.url().endsWith('css')) request.abort();
else request.continue();
});
const failedRequests = [];
page.on('requestfailed', (request) => failedRequests.push(request));
await page.goto(server.PREFIX + '/one-style.html');
expect(failedRequests.length).toBe(1);
expect(failedRequests[0].url()).toContain('one-style.css');
expect(failedRequests[0].response()).toBe(null);
expect(failedRequests[0].resourceType()).toBe('stylesheet');
if (isChrome)
expect(failedRequests[0].failure().errorText).toBe('net::ERR_FAILED');
else
expect(failedRequests[0].failure().errorText).toBe('NS_ERROR_FAILURE');
expect(failedRequests[0].frame()).toBeTruthy();
});
Javascript/Typescript - Puppeteer
Slide 133
Slide 133 text
it('Page.Events.RequestFailed', async () => {
const { page, server, isChrome } = getTestState();
await page.setRequestInterception(true);
page.on('request', (request) => {
if (request.url().endsWith('css')) request.abort();
else request.continue();
});
const failedRequests = [];
page.on('requestfailed', (request) => failedRequests.push(request));
await page.goto(server.PREFIX + '/one-style.html');
expect(failedRequests.length).toBe(1);
expect(failedRequests[0].url()).toContain('one-style.css');
expect(failedRequests[0].response()).toBe(null);
expect(failedRequests[0].resourceType()).toBe('stylesheet');
if (isChrome)
expect(failedRequests[0].failure().errorText).toBe('net::ERR_FAILED');
else
expect(failedRequests[0].failure().errorText).toBe('NS_ERROR_FAILURE');
expect(failedRequests[0].frame()).toBeTruthy();
});
Javascript/Typescript - Puppeteer
Slide 134
Slide 134 text
it('Page.Events.RequestFailed', async () => {
const { page, server, isChrome } = getTestState();
await page.setRequestInterception(true);
page.on('request', (request) => {
if (request.url().endsWith('css')) request.abort();
else request.continue();
});
const failedRequests = [];
page.on('requestfailed', (request) => failedRequests.push(request));
await page.goto(server.PREFIX + '/one-style.html');
expect(failedRequests.length).toBe(1);
expect(failedRequests[0].url()).toContain('one-style.css');
expect(failedRequests[0].response()).toBe(null);
expect(failedRequests[0].resourceType()).toBe('stylesheet');
if (isChrome)
expect(failedRequests[0].failure().errorText).toBe('net::ERR_FAILED');
else
expect(failedRequests[0].failure().errorText).toBe('NS_ERROR_FAILURE');
expect(failedRequests[0].frame()).toBeTruthy();
});
Javascript/Typescript - Puppeteer
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Slide 135 text
public class ToolLocationTest {
@Rule
public JenkinsRule j = new JenkinsRule();
@Test
public void toolCompatibility() {
Maven.MavenInstallation[] maven = j.jenkins.getDescriptorByType(Maven.DescriptorImpl.class).getInstallations();
assertEquals(1, maven.length);
assertEquals("bar", maven[0].getHome());
assertEquals("Maven 1", maven[0].getName());
Ant.AntInstallation[] ant = j.jenkins.getDescriptorByType(Ant.DescriptorImpl.class).getInstallations();
assertEquals(1, ant.length);
assertEquals("foo", ant[0].getHome());
assertEquals("Ant 1", ant[0].getName());
JDK[] jdk = j.jenkins.getDescriptorByType(JDK.DescriptorImpl.class).getInstallations();
assertEquals(Arrays.asList(jdk), j.jenkins.getJDKs());
assertEquals(2, jdk.length); // JenkinsRule adds a 'default' JDK
assertEquals("default", jdk[1].getName()); // make sure it's really that we're seeing
assertEquals("FOOBAR", jdk[0].getHome());
Java - Jenkins
Slide 136
Slide 136 text
public class ToolLocationTest {
@Rule
public JenkinsRule j = new JenkinsRule();
@Test
public void toolCompatibility() {
Maven.MavenInstallation[] maven = j.jenkins.getDescriptorByType(Maven.DescriptorImpl.class).getInstallations();
assertEquals(1, maven.length);
assertEquals("bar", maven[0].getHome());
assertEquals("Maven 1", maven[0].getName());
Ant.AntInstallation[] ant = j.jenkins.getDescriptorByType(Ant.DescriptorImpl.class).getInstallations();
assertEquals(1, ant.length);
assertEquals("foo", ant[0].getHome());
assertEquals("Ant 1", ant[0].getName());
JDK[] jdk = j.jenkins.getDescriptorByType(JDK.DescriptorImpl.class).getInstallations();
assertEquals(Arrays.asList(jdk), j.jenkins.getJDKs());
assertEquals(2, jdk.length); // JenkinsRule adds a 'default' JDK
assertEquals("default", jdk[1].getName()); // make sure it's really that we're seeing
assertEquals("FOOBAR", jdk[0].getHome());
Java - Jenkins
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Slide 137 text
public class ToolLocationTest {
@Rule
public JenkinsRule j = new JenkinsRule();
@Test
public void toolCompatibility() {
Maven.MavenInstallation[] maven = j.jenkins.getDescriptorByType(Maven.DescriptorImpl.class).getInstallations();
assertEquals(1, maven.length);
assertEquals("bar", maven[0].getHome());
assertEquals("Maven 1", maven[0].getName());
Ant.AntInstallation[] ant = j.jenkins.getDescriptorByType(Ant.DescriptorImpl.class).getInstallations();
assertEquals(1, ant.length);
assertEquals("foo", ant[0].getHome());
assertEquals("Ant 1", ant[0].getName());
JDK[] jdk = j.jenkins.getDescriptorByType(JDK.DescriptorImpl.class).getInstallations();
assertEquals(Arrays.asList(jdk), j.jenkins.getJDKs());
assertEquals(2, jdk.length); // JenkinsRule adds a 'default' JDK
assertEquals("default", jdk[1].getName()); // make sure it's really that we're seeing
assertEquals("FOOBAR", jdk[0].getHome());
Java - Jenkins
Slide 138
Slide 138 text
public class ToolLocationTest {
@Rule
public JenkinsRule j = new JenkinsRule();
@Test
public void toolCompatibility() {
Maven.MavenInstallation[] maven = j.jenkins.getDescriptorByType(Maven.DescriptorImpl.class).getInstallations();
assertEquals(1, maven.length);
assertEquals("bar", maven[0].getHome());
assertEquals("Maven 1", maven[0].getName());
Ant.AntInstallation[] ant = j.jenkins.getDescriptorByType(Ant.DescriptorImpl.class).getInstallations();
assertEquals(1, ant.length);
assertEquals("foo", ant[0].getHome());
assertEquals("Ant 1", ant[0].getName());
JDK[] jdk = j.jenkins.getDescriptorByType(JDK.DescriptorImpl.class).getInstallations();
assertEquals(Arrays.asList(jdk), j.jenkins.getJDKs());
assertEquals(2, jdk.length); // JenkinsRule adds a 'default' JDK
assertEquals("default", jdk[1].getName()); // make sure it's really that we're seeing
assertEquals("FOOBAR", jdk[0].getHome());
Java - Jenkins
Slide 139
Slide 139 text
public class ToolLocationTest {
@Rule
public JenkinsRule j = new JenkinsRule();
@Test
public void toolCompatibility() {
Maven.MavenInstallation[] maven = j.jenkins.getDescriptorByType(Maven.DescriptorImpl.class).getInstallations();
assertEquals(1, maven.length);
assertEquals("bar", maven[0].getHome());
assertEquals("Maven 1", maven[0].getName());
Ant.AntInstallation[] ant = j.jenkins.getDescriptorByType(Ant.DescriptorImpl.class).getInstallations();
assertEquals(1, ant.length);
assertEquals("foo", ant[0].getHome());
assertEquals("Ant 1", ant[0].getName());
JDK[] jdk = j.jenkins.getDescriptorByType(JDK.DescriptorImpl.class).getInstallations();
assertEquals(Arrays.asList(jdk), j.jenkins.getJDKs());
assertEquals(2, jdk.length); // JenkinsRule adds a 'default' JDK
assertEquals("default", jdk[1].getName()); // make sure it's really that we're seeing
assertEquals("FOOBAR", jdk[0].getHome());
Java - Jenkins
Slide 140
Slide 140 text
The automation server
Slide 141
Slide 141 text
public class ToolLocationTest {
@Test
@LocalData
public void shouldBeCompatibleWithMaven() {
Maven.MavenInstallation[] maven = j.jenkins.getDescriptorByType(Maven.DescriptorImpl.class).getInstallations();
assertEquals(1, maven.length);
assertEquals("bar", maven[0].getHome());
assertEquals("Maven 1", maven[0].getName());
}
@Test
@LocalData
public void shouldBeCompatibleWithAnt() {
Ant.AntInstallation[] ant = j.jenkins.getDescriptorByType(Ant.DescriptorImpl.class).getInstallations();
assertEquals(1, ant.length);
assertEquals("foo", ant[0].getHome());
assertEquals("Ant 1", ant[0].getName());
}
@Test
@LocalData
Java - Jenkins
Slide 142
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@Test
@LocalData
public void shouldBeCompatibleWithJdk() {
JDK[] jdk = j.jenkins.getDescriptorByType(JDK.DescriptorImpl.class).getInstallations();
assertEquals(Arrays.asList(jdk), j.jenkins.getJDKs());
assertEquals(2, jdk.length); // JenkinsRule adds a 'default' JDK
assertEquals("default", jdk[1].getName()); // make sure it's really that we're seeing
assertEquals("FOOBAR", jdk[0].getHome());
assertEquals("FOOBAR", jdk[0].getJavaHome());
assertEquals("1.6", jdk[0].getName());
}
}
Java - Jenkins
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6. Wrapping up
We are almost done!
Crafting code
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● The stranger
● The operating system evangelist
● Success against all odds
● The free ride
● and two more left!
What we covered
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https://www.codurance.com/publications/building-testing-culture
https://www.codurance.com/publications/tdd-anti-patterns-chapter-1
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https://www.codurance.com/publications/building-testing-culture
https://www.codurance.com/publications/building-testing-culture
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https://www.codurance.com/events
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Matheus Marabesi
Hello there, you can call me Marabesi,
But my name is Matheus Marabesi, I work at Codurance as a
Software craftsperson.
I enjoy talking about anything related to: testing, patterns and
gamification.
You can find me at @MatheusMarabesi or https://marabesi.com
Codurance
Crafting Code