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Espresso Test
Recorder
@magiepooh
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About me
@magiepooh
@magie_pooh
Takuma Fujita
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Company
AbemaTV, Inc.
(Cyber Agent, Inc.)
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What’s Espresso?
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Espresso
• Testing UI tool
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Test
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Test
[Disadvantage]
Maintenance
Laziness
[Advantage]
Clean design
Reduce bugs
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Espresso Test Recorder
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Espresso Test Recorder
• GoogleIO 2016
• Record Espresso UI tests simply by using
your app as a normal user
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Demo
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RecyclerView
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Can’t detect scroll event…
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ViewInteraction appCompatButton = onView(
allOf(withId(R.id.button_recycler), withText("RecyclerView"),
withParent(allOf(withId(R.id.activity_main), withParent(withId(android.R.id.content)))),
isDisplayed()));
appCompatButton.perform(click());
ViewInteraction recyclerView = onView(allOf(withId(R.id.recycler_view), isDisplayed()));
recyclerView.check(matches(isDisplayed()));
// >>> Developers need write this line to scroll RecyclerView
onView(withId(R.id.recycler_view)).perform(RecyclerViewActions.scrollToPosition(19));
// <<<
ViewInteraction appCompatButton2 =
onView(allOf(withId(R.id.text_recycler), withText("position: 19"), isDisplayed()));
appCompatButton2.perform(click());
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ViewInteraction appCompatButton = onView(
allOf(withId(R.id.button_recycler), withText("RecyclerView"),
withParent(allOf(withId(R.id.activity_main), withParent(withId(android.R.id.content)))),
isDisplayed()));
appCompatButton.perform(click());
ViewInteraction recyclerView = onView(allOf(withId(R.id.recycler_view), isDisplayed()));
recyclerView.check(matches(isDisplayed()));
// >>> Developers need write this line to scroll RecyclerView
onView(withId(R.id.recycler_view)).perform(RecyclerViewActions.scrollToPosition(19));
// <<<
ViewInteraction appCompatButton2 =
onView(allOf(withId(R.id.text_recycler), withText("position: 19"), isDisplayed()));
appCompatButton2.perform(click());
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ViewPager
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Can’t detect scroll event…
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Conclusion
• Espresso Test Recorder is
currently experimental.