Accessing children in custom expandable list using android endgame
I am trying to access children in my custom extension list. The list looks like this:
I can successfully access the groups:
Espresso.onView(allOf(withId(R.id.groupRowTextView1), withText(startsWith("Candida")))).perform(click());
When I try to access the child EditText like:
Espresso.onData(is(instanceOf(CustomExpandableListAdapter.class)))
.inAdapterView(withId(R.id.aversionsListView))
.onChildView(allOf(withId(R.id.childEditText), isDisplayed()))
.atPosition(1)
.perform(click());
I am getting this error:
11-30 16:47:45.733 2479-2492/com.foodaversions.people I/TestRunner﹕ ----- begin exception -----
11-30 16:47:45.733 2479-2492/com.foodaversions.people I/TestRunner﹕ com.google.android.apps.common.testing.ui.espresso.PerformException: Error performing 'load adapter data' on view 'with id: is <2131099682>'.
at com.google.android.apps.common.testing.ui.espresso.PerformException$Builder.build(PerformException.java:67)
at com.google.android.apps.common.testing.ui.espresso.base.DefaultFailureHandler.getUserFriendlyError(DefaultFailureHandler.java:57)
at com.google.android.apps.common.testing.ui.espresso.base.DefaultFailureHandler.handle(DefaultFailureHandler.java:40)
at com.google.android.apps.common.testing.ui.espresso.ViewInteraction.runSynchronouslyOnUiThread(ViewInteraction.java:159)
at com.google.android.apps.common.testing.ui.espresso.ViewInteraction.doPerform(ViewInteraction.java:90)
at com.google.android.apps.common.testing.ui.espresso.ViewInteraction.perform(ViewInteraction.java:73)
at com.google.android.apps.common.testing.ui.espresso.DataInteraction.load(DataInteraction.java:135)
at com.google.android.apps.common.testing.ui.espresso.DataInteraction.perform(DataInteraction.java:112)
at com.foodaversions.people.ModifyAversionsTest.selectGlutenIntolerance(ModifyAversionsTest.java:49)
at com.foodaversions.people.ModifyAversionsTest.test(ModifyAversionsTest.java:20)
at java.lang.reflect.Method.invokeNative(Native Method)
at java.lang.reflect.Method.invoke(Method.java:511)
at android.test.InstrumentationTestCase.runMethod(InstrumentationTestCase.java:214)
at android.test.InstrumentationTestCase.runTest(InstrumentationTestCase.java:199)
at android.test.ActivityInstrumentationTestCase2.runTest(ActivityInstrumentationTestCase2.java:192)
at junit.framework.TestCase.runBare(TestCase.java:134)
at junit.framework.TestResult$1.protect(TestResult.java:115)
at junit.framework.TestResult.runProtected(TestResult.java:133)
at junit.framework.TestResult.run(TestResult.java:118)
at junit.framework.TestCase.run(TestCase.java:124)
at android.test.AndroidTestRunner.runTest(AndroidTestRunner.java:190)
at android.test.AndroidTestRunner.runTest(AndroidTestRunner.java:175)
at android.test.InstrumentationTestRunner.onStart(InstrumentationTestRunner.java:555)
at com.google.android.apps.common.testing.testrunner.GoogleInstrumentationTestRunner.onStart(GoogleInstrumentationTestRunner.java:167)
at android.app.Instrumentation$InstrumentationThread.run(Instrumentation.java:1584)
Caused by: java.lang.RuntimeException: No data found matching: is an instance of com.foodaversions.people.adapters.CustomExpandableListAdapter contained values: <[Data: GroupStruct{id=6, name='Alcohol Intolerance', sourceTable=AVERSION_NAME, modifierEnum=EDITABLE, childData=
ChildStruct{id=-1, name='<Add Ingredient>', sourceTable=null, joinTable=null, modifierEnum=ADD_TEXT_VIEW}
}
(class: class com.foodaversions.people.data.ExpandableGroupData$GroupStruct) token: 0, Data: GroupStruct{id=8, name='Candida', sourceTable=AVERSION_NAME, modifierEnum=EDITABLE, childData=
ChildStruct{id=13, name='Sugar', sourceTable=AVERSION, joinTable=null, modifierEnum=DELETE}
ChildStruct{id=-1, name='<Add Ingredient>', sourceTable=null, joinTable=null, modifierEnum=ADD_TEXT_VIEW}
}
(class: class com.foodaversions.people.data.ExpandableGroupData$GroupStruct) token: 1, Data: ChildStruct{id=13, name='Sugar', sourceTable=AVERSION, joinTable=null, modifierEnum=DELETE} (class: class com.foodaversions.people.data.ChildStruct) token: 2, Data: ChildStruct{id=-1, name='<Add Ingredient>', sourceTable=null, joinTable=null, modifierEnum=ADD_TEXT_VIEW} (class: class com.foodaversions.people.data.ChildStruct) token: 3, Data: GroupStruct{id=3, name='Dairy Intolerance', sourceTable=AVERSION_NAME, modifierEnum=EDITABLE, childData=
ChildStruct{id=-1, name='<Add Ingredient>', sourceTable=null, joinTable=null, modifierEnum=ADD_TEXT_VIEW}
}
(class: class com.foodaversions.people.data.ExpandableGroupData$GroupStruct) token: 4, Data: GroupStruct{id=10, name='Egg Allergy', sourceTable=AVERSION_NAME, modifierEnum=EDITABLE, childData=
ChildStruct{id=-1, name='<Add Ingredient>', sourceTable=null, joinTable=null, modifierEnum
11-30 16:47:45.733 2479-2492/com.foodaversions.people I/TestRunner﹕ ----- end exception -----
Expanding a group using onData h2>
I was unable to get the child to click to work, I found it easier to figure out how to expand the list first:
Espresso.onData(allOf(is(instanceOf(ExpandableGroupData.GroupStruct.class)), withGroupName("Candida")))
.inAdapterView(withId(R.id.aversionsListView))
.perform(click());
I thought this might help the child view click solution.
Decision
Thanks @Anna for needing to solve this:
// aversionsListView is the id of the ExpandableListView containing the expandable list
Espresso.onData(allOf(is(instanceOf(ChildStruct.class)), withChildName("<Add Ingredient>")))
.inAdapterView(withId(R.id.aversionsListView))
.check(matches(isDisplayed()))
.perform(click());
:
public static Matcher<Object> withChildName(String name) {
checkNotNull(name);
return withChildName(equalTo(name));
}
public static Matcher<Object> withChildName(final Matcher<String> name) {
checkNotNull(name);
// ChildStruct is the Class returned by BaseExpandableListAdapter.getChild()
return new BoundedMatcher<Object, ChildStruct>(ChildStruct.class){
@Override
public boolean matchesSafely (final ChildStruct childStruct){
return name.matches(childStruct.name);
}
@Override
public void describeTo (Description description){
name.describeTo(description);
}
} ;
}
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1 answer
There are several points of use for adapter types. If you are loading data from an adapter, you cannot use a simple view, as if Espresso did not wait for the data to load. If you are going to use
Espresso.onData(is(instanceOf(CustomExpandableListAdapter.class))) .inAdapterView(withId(R.id.aversionsListView))
then it will return AdapterListView
. If you want to click on the second item in the list, then it .atPosition(1)
is good to use. If R.id.childEditText
is a list item type, you must match it with a custom match. You couldn't use .onChildView(allOf(withId(R.id.childEditText), isDisplayed())).atPosition(1)
together.
I suggest writing a custom layout. Take a look. Custom matches help you get the list item with its start match. You can try to write something like this.
onData(allOf(is(instanceOf(<List item class for adapter>.class)), withListItemCheck(check_value))).check(matches(isDisplayed()));
Your helper could be like this:
public static Matcher<Object> withListItemCheck(final <Type> check_value) {
checkNotNull(check_value);
return new BoundedMatcher<Object, <List_Item_class>>(<List_Item_class>.class) {
private String m_message = "";
@Override
public void describeTo(Description d) {
d.appendText(m_message);
}
@Override
public boolean matchesSafely(<List_Item_class> listItem) {
m_message = "Expected " + listItem+ " and got ";
if (listItem== null) {
m_message += "empty";
return false;
}
return <assertion to check `check_value` is corresponding to `listItem` or not>;
}
};
}
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