Espresso 宣传其始终等待 Android 的 UI 线程空闲的功能,这样您就不必处理任何时间问题。但我似乎发现了一个异常(exception):-/
设置是 ViewPager
与 EditText
在每个 fragment 中。我希望 Espresso 在 EditText
中输入文本在第一个 fragment 上,滑动到第二个 fragment 并对 EditText
执行相同操作在那个 fragment 中(3次):
@MediumTest
public void testSwipe() throws InterruptedException {
onView(withIdInActiveFragment(EXTERN_HOURS_INPUT))
.perform(typeText("8.0"));
onView(withIdInActiveFragment(DAY_PAGER))
.perform(swipeLeft());
//Thread.sleep(2000); // <--- uncomment this and the test runs fine
onView(withIdInActiveFragment(EXTERN_HOURS_INPUT))
.perform(typeText("8.0"));
onView(withIdInActiveFragment(DAY_PAGER))
.perform(swipeLeft());
//Thread.sleep(2000);
onView(withIdInActiveFragment(EXTERN_HOURS_INPUT))
.perform(typeText("8.0"));
onView(withIdInActiveFragment(DAY_PAGER))
.perform(swipeLeft());
}
public static Matcher<View> withIdInActiveFragment(int id) {
return Matchers.allOf(withParent(isDisplayed()), withId(id));
}
但是在执行第一次滑动时出现此错误:
android.support.test.espresso.AmbiguousViewMatcherException: '(has parent matching: is displayed on the screen to the user and with id: de.cp.cp_app_android:id/extern_hours_input)' matches multiple views in the hierarchy.
Problem views are marked with '****MATCHES****' below.
View Hierarchy:
...
+-------->AppCompatEditText{id=2131558508, res-name=extern_hours_input, visibility=VISIBLE, width=110, height=91, has-focus=true, has-focusable=true, has-window-focus=true, is-clickable=true, is-enabled=true, is-focused=true, is-focusable=true, is-layout-requested=false, is-selected=false, root-is-layout-requested=false, has-input-connection=true, editor-info=[inputType=0x2002 imeOptions=0x6 privateImeOptions=null actionLabel=null actionId=0 initialSelStart=3 initialSelEnd=3 initialCapsMode=0x0 hintText=null label=null packageName=null fieldId=0 fieldName=null extras=null ], x=165.0, y=172.0, text=8.0, input-type=8194, ime-target=true, has-links=false} ****MATCHES****
...
+-------->AppCompatEditText{id=2131558508, res-name=extern_hours_input, visibility=VISIBLE, width=110, height=91, has-focus=false, has-focusable=true, has-window-focus=true, is-clickable=true, is-enabled=true, is-focused=false, is-focusable=true, is-layout-requested=false, is-selected=false, root-is-layout-requested=false, has-input-connection=true, editor-info=[inputType=0x2002 imeOptions=0x6 privateImeOptions=null actionLabel=null actionId=0 initialSelStart=0 initialSelEnd=0 initialCapsMode=0x2000 hintText=null label=null packageName=null fieldId=0 fieldName=null extras=null ], x=165.0, y=172.0, text=, input-type=8194, ime-target=false, has-links=false} ****MATCHES****
Espresso 想写入
EditText
ID 为 EXTERN_HOURS_INPUT
这是可见的。由于滑动操作尚未完成,EditTexts
在第一个和第二个 fragment 中是可见的,这就是为什么匹配 onView(withIdInActiveFragment(EXTERN_HOURS_INPUT))
2 场比赛失败。如果我通过添加
Thread.sleep(2000);
手动强制中断刷卡 Action 后,一切都很好。有人知道如何让 Espresso 等到刷卡 Action 完成吗?或者至少有人知道,为什么会发生这种情况?因为执行滑动操作时 UI-Thread 不能空闲,可以吗?
这里是
activity_day_time_record.xml
<layout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:bind="http://schemas.android.com/apk/res-auto">
<data>
<variable
name="timerecord"
type="de.cp.cp_app_android.model.TimerecordDatabindingWrapper" />
</data>
<ScrollView
android:layout_width="wrap_content"
android:layout_height="wrap_content">
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:tools="http://schemas.android.com/tools"
style="@style/cp_relative_layout"
android:descendantFocusability="afterDescendants"
tools:context=".activities.DayRecordActivity">
<include
android:id="@+id/toolbar"
layout="@layout/cp_toolbar"></include>
<!-- Arbeitsstunden -->
<TextView xmlns:android="http://schemas.android.com/apk/res/android"
android:id="@+id/section_title_workhours"
style="?android:attr/listSeparatorTextViewStyle"
android:layout_width="match_parent"
android:layout_height="25dip"
android:layout_below="@id/toolbar"
android:text="@string/dayrecord_section_workhours" />
<TextView
android:id="@+id/extern_hours"
style="@style/dayrecord_label"
android:layout_below="@id/section_title_workhours"
android:text="@string/dayrecord_label_extern_hours" />
<EditText
android:id="@+id/extern_hours_input"
style="@style/dayrecord_decimal_input"
android:layout_alignBaseline="@id/extern_hours"
android:layout_toEndOf="@id/extern_hours"
android:layout_toRightOf="@id/extern_hours"
bind:addTextChangedListener="@{timerecord.changed}"
bind:binding="@{timerecord.hoursExtern}"
bind:setOnFocusChangeListener="@{timerecord.hoursExternChanged}" />
<!-- android:text='@{timerecord.hoursExtern != null ? String.format("%.1f", timerecord.hoursExtern) : ""}' -->
</RelativeLayout>
</ScrollView>
和
activity_swipe_day.xml
:<android.support.v4.view.ViewPager xmlns:android="http://schemas.android.com/apk/res/android"
android:id="@+id/day_pager"
android:layout_width="match_parent"
android:layout_height="match_parent" >
最佳答案
我认为 Espresso 没有任何内置此功能的功能,他们希望您使用 idling-resource .
我想出的最好的方法仍然是使用 sleep ,但每 100 毫秒轮询一次,所以在 View 变得可见后最坏的情况下会返回 100 毫秒。
private final int TIMEOUT_MILLISECONDS = 5000;
private final int SLEEP_MILLISECONDS = 100;
private int time = 0;
private boolean wasDisplayed = false;
public Boolean isVisible(ViewInteraction interaction) throws InterruptedException {
interaction.withFailureHandler((error, viewMatcher) -> wasDisplayed = false);
if (wasDisplayed) {
time = 0;
wasDisplayed = false;
return true;
}
if (time >= TIMEOUT_MILLISECONDS) {
time = 0;
wasDisplayed = false;
return false;
}
//set it to true if failing handle should set it to false again.
wasDisplayed = true;
Thread.sleep(SLEEP_MILLISECONDS);
time += SLEEP_MILLISECONDS;
interaction.check(matches(isDisplayed()));
Log.i("ViewChecker","sleeping");
return isVisible(interaction);
}
然后你可以这样称呼它:ViewInteraction interaction = onView(
allOf(withId(R.id.someId), withText(someText), isDisplayed()));
boolean objectIsVisible = isVisible(interaction);
assertThat(objectIsVisible, is(true));
关于android - Espresso 不会等待 ViewPager 上的滑动操作完成,我们在Stack Overflow上找到一个类似的问题: https://stackoverflow.com/questions/37294132/