com.facebook.testing.screenshot.ViewHelpers Java Examples

private void capture(final String name) {
    getInstrumentation().runOnMainSync(new Runnable() {
        @Override
        public void run() {
            compactCalendarView.requestLayout();
            ViewHelpers.setupView(mainContent)
                    .setExactHeightPx(mainContent.getHeight())
                    .setExactWidthPx(mainContent.getWidth())
                    .layout();
            safeSleep(200);
            Screenshot.snap(mainContent)
                    .setName(name)
                    .record();
        }
    });
}
 

@UiThreadTest
@Before
public void before() throws Throwable {
  ComponentsConfiguration.isEndToEndTestRun = true;
  final ComponentContext mComponentContext =
      new ComponentContext(InstrumentationRegistry.getTargetContext());
  final Component mTextComponent = MyComponent.create(mComponentContext).text("foobar").build();
  mView = LithoView.create(InstrumentationRegistry.getTargetContext(), mTextComponent);
  ViewHelpers.setupView(mView).setExactWidthPx(200).setExactHeightPx(100).layout();
}
 

@UiThreadTest
@Before
public void before() throws Throwable {
  final ComponentContext mComponentContext =
      new ComponentContext(InstrumentationRegistry.getTargetContext());
  final Component mTextComponent =
      MyComponent.create(mComponentContext).text("foobar").customViewTag("zoidberg").build();
  final ComponentTree tree = ComponentTree.create(mComponentContext, mTextComponent).build();
  mView = new LithoView(mComponentContext);
  mView.setComponentTree(tree);
  ViewHelpers.setupView(mView).setExactWidthPx(200).setExactHeightPx(100).layout();
}
 

public static void measureAndScreenshotView(View view, int width, int height) {
    ViewHelpers.setupView(view)
            .setExactWidthPx(width)
            .setExactHeightPx(height)
            .layout();
    Screenshot.snap(view)
            .record();
}
 

protected void compareScreenshot(View view, int height) {
  Context context = getInstrumentation().getTargetContext();
  WindowManager windowManager = (WindowManager) context.getSystemService(Context.WINDOW_SERVICE);
  DisplayMetrics metrics = new DisplayMetrics();
  windowManager.getDefaultDisplay().getMetrics(metrics);
  ViewHelpers.setupView(view)
      .setExactHeightPx(context.getResources().getDimensionPixelSize(height))
      .setExactWidthPx(metrics.widthPixels)
      .layout();
  Screenshot.snap(view).record();
}
 

@Test
public void testDefault() {
  Context targetContext = InstrumentationRegistry.getInstrumentation().getTargetContext();
  LayoutInflater inflater = LayoutInflater.from(targetContext);
  LithoView view = (LithoView) inflater.inflate(R.layout.litho_view, null, false);

  view.setComponent(Example.create(view.getComponentContext()).build());

  ViewHelpers.setupView(view).setExactWidthDp(300).layout();
  Screenshot.snap(view).record();
}
 

@Test
public void testDefault() {
  Context targetContext = InstrumentationRegistry.getInstrumentation().getTargetContext();
  LayoutInflater inflater = LayoutInflater.from(targetContext);
  LithoView view = (LithoView) inflater.inflate(R.layout.litho_view, null, false);

  view.setComponent(ImageRow.create(view.getComponentContext()).build());

  ViewHelpers.setupView(view).setExactWidthDp(300).layout();
  Screenshot.snap(view).record();
}
 

@Test
public void testBasicCoordinateCheck() throws Throwable {
  ViewHelpers.setupView(mView).setExactHeightPx(1000).setExactWidthPx(20000).layout();
  ParsedViewDetail node = ParsedViewDetail.convert(mView);
  assertEquals(0, node.absoluteRect.top);
  assertEquals(0, node.absoluteRect.left);
  assertEquals(node.childAt(0).absoluteRect.bottom, node.childAt(1).absoluteRect.top);
  assertTrue(node.childAt(0).absoluteRect.bottom != 0);
}
 

@Test
public void testNestedAbsoluteCoordinates() throws Throwable {
  ViewHelpers.setupView(mView).setExactHeightPx(1000).setExactWidthPx(20000).layout();
  ParsedViewDetail node = ParsedViewDetail.convert(mView);

  int textViewHeight = ((ViewGroup) mView).getChildAt(0).getHeight();

  assertEquals(3 * textViewHeight, node.childAt(2).childAt(1).absoluteRect.top);
}
 

@Test
public void testDumpHierarchyOnNestedNode() throws Throwable {
  ViewHelpers.setupView(mView).setExactHeightPx(1000).setExactWidthPx(20000).layout();
  ParsedViewDetail node = ParsedViewDetail.convert(((ViewGroup) mView).getChildAt(2));

  assertEquals(0, node.absoluteRect.top);
  assertEquals(0, node.absoluteRect.left);
  int textViewHeight = ((ViewGroup) mView).getChildAt(0).getHeight();

  assertEquals(textViewHeight, node.childAt(1).absoluteRect.top);
}
 

@Test
public void testPluginDumps() throws Throwable {
  ViewHelpers.setupView(mView).setExactHeightPx(1000).setExactWidthPx(20000).layout();

  LayoutHierarchyDumper dumper =
      LayoutHierarchyDumper.createWith(
          Collections.<HierarchyPlugin>emptyList(), Collections.singletonList(mAttributePlugin));
  JSONObject root = dumper.dumpHierarchy(mView);

  assertEquals("bar", root.getString("foo:foo"));
}
 

@Test
public void testPluginDumpsRecursively() throws Throwable {
  ViewHelpers.setupView(mView).setExactHeightPx(1000).setExactWidthPx(20000).layout();

  LayoutHierarchyDumper dumper =
      LayoutHierarchyDumper.createWith(
          Collections.<HierarchyPlugin>emptyList(),
          Collections.singletonList(mTextAttributePlugin));

  JSONObject node = dumper.dumpHierarchy(mView);

  List<String> allText = new ArrayList<>();
  Queue<JSONObject> toCheck = new ArrayDeque<>();
  toCheck.offer(node);
  while (!toCheck.isEmpty()) {
    JSONObject object = toCheck.poll();
    String maybeText = object.optString("Text:text");
    if (!TextUtils.isEmpty(maybeText)) {
      allText.add(maybeText);
    }
    JSONArray children = object.optJSONArray(BaseViewHierarchyPlugin.KEY_CHILDREN);
    if (children == null) {
      continue;
    }
    for (int i = 0; i < children.length(); ++i) {
      toCheck.offer(children.getJSONObject(i));
    }
  }

  List<String> expected = new ArrayList<>();
  expected.add("foobar");
  expected.add("foobar2");
  expected.add("foobar3");
  expected.add("foobar4");

  assertEquals(expected, allText);
}
 

private void takeScreenShot(final int height) {
    activityRule.getActivity().runOnUiThread(new Runnable() {
        @Override
        public void run() {
            ViewHelpers.setupView(mainContent)
                    .setExactHeightDp(height)
                    .setExactWidthPx(mainContent.getWidth())
                    .layout();
        }
    });

    Screenshot.snap(mainContent)
            .record();
}
 

protected void setupView(@NonNull View view) {
  ViewHelpers.setupView(view)
      .setExactWidthDp(SNAPSHOT_WIDTH_DP)
      .setExactHeightDp(SNAPSHOT_HEIGHT_DP)
      .layout();
}