Java ViewAssertion类代码示例

import android.support.test.espresso.ViewAssertion; //导入依赖的package包/类
@Test
    public void searchCityAndClick() throws Exception {
        List<Election> unfilteredList = electionActivity.getAdapter().getList();

        onView(withId(R.id.search)).perform(click());

        final Election toClick = unfilteredList.get(0);
        onView(withId(android.support.design.R.id.search_src_text)).perform(typeText(toClick.getPlace()));

        onView (withId (R.id.election_list)).check (ViewAssertions.matches (new Matchers().withListSize (1)));

        onData(instanceOf(Election.class))
                .inAdapterView(withId(R.id.election_list))
                .atPosition(0)
                .perform(click());
//        intended(hasComponent(MainActivity.class.getName()));
        onView(withId(R.id.app_bar)).check(new ViewAssertion() {
            @Override
            public void check(View view, NoMatchingViewException noViewFoundException) {
                assertEquals(((Toolbar) view).getTitle(), toClick.getKind());
                assertEquals(((Toolbar) view).getSubtitle(), toClick.getPlace());
            }
        });
    }
 

import android.support.test.espresso.ViewAssertion; //导入依赖的package包/类
@NonNull
public static ViewAssertion hasHolderItem(final Matcher<RecyclerView.ViewHolder> viewHolderMatcher) {
	return new ViewAssertion() {
		@Override public void check(View view, NoMatchingViewException e) {
			if (!(view instanceof RecyclerView)) {
				throw e;
			}

			boolean hasMatch = false;
			RecyclerView rv = (RecyclerView) view;
			for (int i = 0; i < rv.getChildCount(); i++) {
				RecyclerView.ViewHolder vh = rv.findViewHolderForAdapterPosition(i);
				hasMatch |= viewHolderMatcher.matches(vh);
			}
			Assert.assertTrue(hasMatch);
		}
	};
}
 

import android.support.test.espresso.ViewAssertion; //导入依赖的package包/类
@Test
public void testAutoFocus() {
    onView(withId(R.id.camera))
            .check(new ViewAssertion() {
                @Override
                public void check(View view, NoMatchingViewException noViewFoundException) {
                    CameraView cameraView = (CameraView) view;
                    // This can fail on devices without auto-focus support
                    assertThat(cameraView.getAutoFocus(), is(true));
                    cameraView.setAutoFocus(false);
                    assertThat(cameraView.getAutoFocus(), is(false));
                    cameraView.setAutoFocus(true);
                    assertThat(cameraView.getAutoFocus(), is(true));
                }
            });
}
 

import android.support.test.espresso.ViewAssertion; //导入依赖的package包/类
private static ViewAssertion showingPreview() {
    return new ViewAssertion() {
        @Override
        public void check(View view, NoMatchingViewException noViewFoundException) {
            if (android.os.Build.VERSION.SDK_INT < 14) {
                return;
            }
            CameraView cameraView = (CameraView) view;
            TextureView textureView = (TextureView) cameraView.findViewById(R.id.texture_view);
            Bitmap bitmap = textureView.getBitmap();
            int topLeft = bitmap.getPixel(0, 0);
            int center = bitmap.getPixel(bitmap.getWidth() / 2, bitmap.getHeight() / 2);
            int bottomRight = bitmap.getPixel(
                    bitmap.getWidth() - 1, bitmap.getHeight() - 1);
            assertFalse("Preview possibly blank: " + Integer.toHexString(topLeft),
                    topLeft == center && center == bottomRight);
        }
    };
}
 

import android.support.test.espresso.ViewAssertion; //导入依赖的package包/类
@Test
    public void clickOnElection() throws Exception {
        final Election e = electionActivity.getAdapter().getItem(1);

        onData(instanceOf(Election.class)) // We are using the position so don't need to specify a data matcher
                .inAdapterView(withId(R.id.election_list)) // Specify the explicit id of the ListView
                .atPosition(1) // Explicitly specify the adapter item to use
                .perform(click());
//        intended(hasComponent(MainActivity.class.getName()));
        onView(withId(R.id.app_bar)).check(new ViewAssertion() {
            @Override
            public void check(View view, NoMatchingViewException noViewFoundException) {
                assertEquals(((Toolbar) view).getTitle(), e.getKind());
                assertEquals(((Toolbar) view).getSubtitle(), e.getPlace());
            }
        });
    }
 

import android.support.test.espresso.ViewAssertion; //导入依赖的package包/类
private String encrypt(String text) throws InterruptedException {
    final String[] result = new String[1];

    onView(withId(R.id.editText4)).perform(scrollTo(), replaceText(text), closeSoftKeyboard());
    onView(allOf(withId(R.id.button2), withText("Encrypt"))).perform(scrollTo(), click());
    onView(withId(R.id.editText5)).check(new ViewAssertion() {
        @Override
        public void check(View view, NoMatchingViewException noViewFoundException) {
            result[0] = String.valueOf(((EditText) view).getText());
        }
    });
    onView(allOf(withId(R.id.button3), withText("Test Decrypt"))).perform(scrollTo(), click());
    onView(withId(R.id.textView5)).check(matches(withText(text)));
    onView(allOf(withId(R.id.button4), withText("Copy"))).perform(scrollTo(), click());

    return result[0];
}
 

import android.support.test.espresso.ViewAssertion; //导入依赖的package包/类
/**
 * Check that this item exist.
 *
 * Is true when adapter has matching item ignores the display state.
 *
 * @since Espresso Macchiato 0.6
 */

public void assertExist() {
    findRecyclerView().check(new ViewAssertion() {
        @Override
        public void check(View view, NoMatchingViewException noViewFoundException) {
            if (noViewFoundException != null) {
                throw noViewFoundException;
            }

            RecyclerView recyclerView = (RecyclerView) view;
            if (index >= recyclerView.getAdapter().getItemCount()) {
                throw new AssertionFailedError("Requested item should exist.");
            }
        }
    });
}
 

import android.support.test.espresso.ViewAssertion; //导入依赖的package包/类
@Test
public void testAutoFocus() {
    onView(withId(com.google.android.cameraview.test.R.id.camera))
            .check(new ViewAssertion() {
                @Override
                public void check(View view, NoMatchingViewException noViewFoundException) {
                    CameraView cameraView = (CameraView) view;
                    // This can fail on devices without auto-focus support
                    assertThat(cameraView.getAutoFocus(), is(true));
                    cameraView.setAutoFocus(false);
                    assertThat(cameraView.getAutoFocus(), is(false));
                    cameraView.setAutoFocus(true);
                    assertThat(cameraView.getAutoFocus(), is(true));
                }
            });
}
 

import android.support.test.espresso.ViewAssertion; //导入依赖的package包/类
private static ViewAssertion showingPreview() {
    return new ViewAssertion() {
        @Override
        public void check(View view, NoMatchingViewException noViewFoundException) {
            if (android.os.Build.VERSION.SDK_INT < 14) {
                return;
            }
            CameraView cameraView = (CameraView) view;
            TextureView textureView = (TextureView) cameraView.findViewById(com.google.android.cameraview.test.R.id.texture_view);
            Bitmap bitmap = textureView.getBitmap();
            int topLeft = bitmap.getPixel(0, 0);
            int center = bitmap.getPixel(bitmap.getWidth() / 2, bitmap.getHeight() / 2);
            int bottomRight = bitmap.getPixel(
                    bitmap.getWidth() - 1, bitmap.getHeight() - 1);
            assertFalse("Preview possibly blank: " + Integer.toHexString(topLeft),
                    topLeft == center && center == bottomRight);
        }
    };
}
 

import android.support.test.espresso.ViewAssertion; //导入依赖的package包/类
@Test
public void testTouchCoordinatorLayout() {
  final CoordinatorLayoutActivity activity = activityTestRule.getActivity();
  down = false;
  Espresso.onView(sameInstance((View) activity.mCoordinatorLayout))
      .perform(ViewActions.click()) // Click outside the bottom sheet
      .check(
          new ViewAssertion() {
            @Override
            public void check(View view, NoMatchingViewException e) {
              assertThat(e, is(nullValue()));
              assertThat(view, is(notNullValue()));
              // Check that the touch event fell through to the container
              assertThat(down, is(true));
            }
          });
}
 

import android.support.test.espresso.ViewAssertion; //导入依赖的package包/类
public static ViewAssertion flexGridHasCode(final List<CodeLine> expectedCodeLines)
{
    return new ViewAssertion()
    {
        @Override
        public void check(View view, NoMatchingViewException noViewException)
        {
            FlexGrid flexGrid = (FlexGrid) view;

            List<CodeLine> actualCodeLines = (List<CodeLine>) flexGrid.getItemsSource();

            for (int i = 0; i < expectedCodeLines.size(); i++)
            {
                CodeLine expected = expectedCodeLines.get(i);
                CodeLine actual = actualCodeLines.get(i);

                assertEquals(expected.getCodeText(), actual.getCodeText());
            }
        }
    };
}
 

import android.support.test.espresso.ViewAssertion; //导入依赖的package包/类
public static ViewAssertion checkMessagesOnlyFromToday() {
    return new ViewAssertion() {
        @Override
        public void check(View view, NoMatchingViewException e) {
            if (!(view instanceof RecyclerView)) {
                throw e;
            }
            RecyclerView rv = (RecyclerView) view;
            RecyclerMessageAdapter recyclerMessageAdapter = (RecyclerMessageAdapter) rv.getAdapter();
            StringBuilder stringBuilder = new StringBuilder();
            stringBuilder.append("OfDate-" + (new Date()).toString() + " { ");
            for (int index = 0; index < recyclerMessageAdapter.getItemCount(); index++) {
                if (recyclerMessageAdapter.getItem(index) instanceof Message) {
                    Message message = (Message) recyclerMessageAdapter.getItem(index);
                    SimpleDateFormat sdf = new SimpleDateFormat("HH:mm", Locale.US);
                    stringBuilder.append(message.getID() + "-" + sdf.format(message.getTimestamp()) + " , ");
                    assertTrue("This message is not of today ID=" + message.getID() + ":" + message.getIdForHolder() + "\ncontent=" + message.getContent(), DateUtils.isToday(message.getTimestamp().getTime()));
                }
            }
            stringBuilder.append(" }");
            printLogInPartsIfExceeded(stringBuilder, "checkMessagesOnlyFromToday");
        }
    };
}
 

import android.support.test.espresso.ViewAssertion; //导入依赖的package包/类
public static ViewAssertion hasViewWithTextAtPosition(final int index, final CharSequence text) {
    return new ViewAssertion() {
        @Override
        public void check(View view, NoMatchingViewException e) {
            if (!(view instanceof RecyclerView)) {
                throw e;
            }
            RecyclerView rv = (RecyclerView) view;
            ArrayList<View> outviews = new ArrayList<>();
            rv.findViewHolderForAdapterPosition(index).itemView.findViewsWithText(outviews, text,
                    FIND_VIEWS_WITH_TEXT);
            Truth.assert_().withFailureMessage("There's no view at index " + index + " of recyclerview that has text : " + text)
                    .that(outviews).isNotEmpty();
        }
    };
}
 

import android.support.test.espresso.ViewAssertion; //导入依赖的package包/类
public static ViewAssertion doesntHaveViewWithText(final String text) {
    return new ViewAssertion() {
        @Override
        public void check(View view, NoMatchingViewException e) {
            if (!(view instanceof RecyclerView)) {
                throw e;
            }
            RecyclerView rv = (RecyclerView) view;
            ArrayList<View> outviews = new ArrayList<>();
            for (int index = 0; index < rv.getAdapter().getItemCount(); index++) {
                rv.findViewHolderForAdapterPosition(index).itemView.findViewsWithText(outviews, text,
                        FIND_VIEWS_WITH_TEXT);
                if (outviews.size() > 0) break;
            }
            Truth.assertThat(outviews).isEmpty();
        }
    };
}
 

import android.support.test.espresso.ViewAssertion; //导入依赖的package包/类
public RecyclerViewInteraction checkView(final @IdRes int id, final ViewAssertion itemViewAssertion) {
    viewInteraction.check(new ViewAssertion() {
        @Override
        public void check(View view, NoMatchingViewException ex) {
            RecyclerView recyclerView = (RecyclerView) view;
            RecyclerView.ViewHolder viewHolderForPosition = recyclerView.findViewHolderForLayoutPosition(position);
            if (viewHolderForPosition == null) {
                throw (new PerformException.Builder())
                        .withActionDescription(toString())
                        .withViewDescription(HumanReadables.describe(view))
                        .withCause(new IllegalStateException("No view holder at position: " + position))
                        .build();
            } else {
                View viewAtPosition = viewHolderForPosition.itemView.findViewById(id);
                itemViewAssertion.check(viewAtPosition, ex);
            }
        }
    });
    return this;
}