auto import from //depot/cupcake/@135843
diff --git a/test-runner/android/test/ViewAsserts.java b/test-runner/android/test/ViewAsserts.java
new file mode 100644
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+++ b/test-runner/android/test/ViewAsserts.java
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+/*
+ * Copyright (C) 2007 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package android.test;
+
+import static junit.framework.Assert.*;
+
+import android.view.View;
+import android.view.ViewGroup;
+
+/**
+ * Some useful assertions about views.
+ */
+public class ViewAsserts {
+
+ private ViewAsserts() {}
+
+ /**
+ * Assert that view is on the screen.
+ * @param origin The root view of the screen.
+ * @param view The view.
+ */
+ static public void assertOnScreen(View origin, View view) {
+ int[] xy = new int[2];
+ view.getLocationOnScreen(xy);
+
+ int[] xyRoot = new int[2];
+ origin.getLocationOnScreen(xyRoot);
+
+ int y = xy[1] - xyRoot[1];
+
+ assertTrue("view should have positive y coordinate on screen",
+ y >= 0);
+
+ assertTrue("view should have y location on screen less than drawing "
+ + "height of root view",
+ y <= view.getRootView().getHeight());
+ }
+
+ /**
+ * Assert that view is below the visible screen.
+ * @param origin The root view of the screen.
+ * @param view The view
+ */
+ static public void assertOffScreenBelow(View origin, View view) {
+ int[] xy = new int[2];
+ view.getLocationOnScreen(xy);
+
+ int[] xyRoot = new int[2];
+ origin.getLocationOnScreen(xyRoot);
+
+ int y = xy[1] - xyRoot[1];
+
+ assertTrue("view should have y location on screen greater than drawing "
+ + "height of origen view (" + y + " is not greater than "
+ + origin.getHeight() + ")",
+ y > origin.getHeight());
+ }
+
+ /**
+ * Assert that view is above the visible screen.
+ * @param origin Te root view of the screen.
+ * @param view The view
+ */
+ static public void assertOffScreenAbove(View origin, View view) {
+ int[] xy = new int[2];
+ view.getLocationOnScreen(xy);
+
+ int[] xyRoot = new int[2];
+ origin.getLocationOnScreen(xyRoot);
+
+ int y = xy[1] - xyRoot[1];
+
+ assertTrue("view should have y location less than that of origin view",
+ y < 0);
+ }
+
+ /**
+ * Assert that a view has a particular x and y position on the visible screen.
+ * @param origin The root view of the screen.
+ * @param view The view.
+ * @param x The expected x coordinate.
+ * @param y The expected y coordinate.
+ */
+ static public void assertHasScreenCoordinates(View origin, View view, int x, int y) {
+ int[] xy = new int[2];
+ view.getLocationOnScreen(xy);
+
+ int[] xyRoot = new int[2];
+ origin.getLocationOnScreen(xyRoot);
+
+ assertEquals("x coordinate", x, xy[0] - xyRoot[0]);
+ assertEquals("y coordinate", y, xy[1] - xyRoot[1]);
+ }
+
+ /**
+ * Assert that two views are aligned on their baseline, that is that their baselines
+ * are on the same y location.
+ *
+ * @param first The first view
+ * @param second The second view
+ */
+ static public void assertBaselineAligned(View first, View second) {
+ int[] xy = new int[2];
+ first.getLocationOnScreen(xy);
+ int firstTop = xy[1] + first.getBaseline();
+
+ second.getLocationOnScreen(xy);
+ int secondTop = xy[1] + second.getBaseline();
+
+ assertEquals("views are not baseline aligned", firstTop, secondTop);
+ }
+
+ /**
+ * Assert that two views are right aligned, that is that their right edges
+ * are on the same x location.
+ *
+ * @param first The first view
+ * @param second The second view
+ */
+ static public void assertRightAligned(View first, View second) {
+ int[] xy = new int[2];
+ first.getLocationOnScreen(xy);
+ int firstRight = xy[0] + first.getMeasuredWidth();
+
+ second.getLocationOnScreen(xy);
+ int secondRight = xy[0] + second.getMeasuredWidth();
+
+ assertEquals("views are not right aligned", firstRight, secondRight);
+ }
+
+ /**
+ * Assert that two views are right aligned, that is that their right edges
+ * are on the same x location, with respect to the specified margin.
+ *
+ * @param first The first view
+ * @param second The second view
+ * @param margin The margin between the first view and the second view
+ */
+ static public void assertRightAligned(View first, View second, int margin) {
+ int[] xy = new int[2];
+ first.getLocationOnScreen(xy);
+ int firstRight = xy[0] + first.getMeasuredWidth();
+
+ second.getLocationOnScreen(xy);
+ int secondRight = xy[0] + second.getMeasuredWidth();
+
+ assertEquals("views are not right aligned", Math.abs(firstRight - secondRight), margin);
+ }
+
+ /**
+ * Assert that two views are left aligned, that is that their left edges
+ * are on the same x location.
+ *
+ * @param first The first view
+ * @param second The second view
+ */
+ static public void assertLeftAligned(View first, View second) {
+ int[] xy = new int[2];
+ first.getLocationOnScreen(xy);
+ int firstLeft = xy[0];
+
+ second.getLocationOnScreen(xy);
+ int secondLeft = xy[0];
+
+ assertEquals("views are not left aligned", firstLeft, secondLeft);
+ }
+
+ /**
+ * Assert that two views are left aligned, that is that their left edges
+ * are on the same x location, with respect to the specified margin.
+ *
+ * @param first The first view
+ * @param second The second view
+ * @param margin The margin between the first view and the second view
+ */
+ static public void assertLeftAligned(View first, View second, int margin) {
+ int[] xy = new int[2];
+ first.getLocationOnScreen(xy);
+ int firstLeft = xy[0];
+
+ second.getLocationOnScreen(xy);
+ int secondLeft = xy[0];
+
+ assertEquals("views are not left aligned", Math.abs(firstLeft - secondLeft), margin);
+ }
+
+ /**
+ * Assert that two views are bottom aligned, that is that their bottom edges
+ * are on the same y location.
+ *
+ * @param first The first view
+ * @param second The second view
+ */
+ static public void assertBottomAligned(View first, View second) {
+ int[] xy = new int[2];
+ first.getLocationOnScreen(xy);
+ int firstBottom = xy[1] + first.getMeasuredHeight();
+
+ second.getLocationOnScreen(xy);
+ int secondBottom = xy[1] + second.getMeasuredHeight();
+
+ assertEquals("views are not bottom aligned", firstBottom, secondBottom);
+ }
+
+ /**
+ * Assert that two views are bottom aligned, that is that their bottom edges
+ * are on the same y location, with respect to the specified margin.
+ *
+ * @param first The first view
+ * @param second The second view
+ * @param margin The margin between the first view and the second view
+ */
+ static public void assertBottomAligned(View first, View second, int margin) {
+ int[] xy = new int[2];
+ first.getLocationOnScreen(xy);
+ int firstBottom = xy[1] + first.getMeasuredHeight();
+
+ second.getLocationOnScreen(xy);
+ int secondBottom = xy[1] + second.getMeasuredHeight();
+
+ assertEquals("views are not bottom aligned", Math.abs(firstBottom - secondBottom), margin);
+ }
+
+ /**
+ * Assert that two views are top aligned, that is that their top edges
+ * are on the same y location.
+ *
+ * @param first The first view
+ * @param second The second view
+ */
+ static public void assertTopAligned(View first, View second) {
+ int[] xy = new int[2];
+ first.getLocationOnScreen(xy);
+ int firstTop = xy[1];
+
+ second.getLocationOnScreen(xy);
+ int secondTop = xy[1];
+
+ assertEquals("views are not top aligned", firstTop, secondTop);
+ }
+
+ /**
+ * Assert that two views are top aligned, that is that their top edges
+ * are on the same y location, with respect to the specified margin.
+ *
+ * @param first The first view
+ * @param second The second view
+ * @param margin The margin between the first view and the second view
+ */
+ static public void assertTopAligned(View first, View second, int margin) {
+ int[] xy = new int[2];
+ first.getLocationOnScreen(xy);
+ int firstTop = xy[1];
+
+ second.getLocationOnScreen(xy);
+ int secondTop = xy[1];
+
+ assertEquals("views are not top aligned", Math.abs(firstTop - secondTop), margin);
+ }
+
+ /**
+ * Assert that the <code>test</code> view is horizontally center aligned
+ * with respect to the <code>reference</code> view.
+ *
+ * @param reference The reference view
+ * @param test The view that should be center aligned with the reference view
+ */
+ static public void assertHorizontalCenterAligned(View reference, View test) {
+ int[] xy = new int[2];
+ reference.getLocationOnScreen(xy);
+ int referenceLeft = xy[0];
+
+ test.getLocationOnScreen(xy);
+ int testLeft = xy[0];
+
+ int center = (reference.getMeasuredWidth() - test.getMeasuredWidth()) / 2;
+ int delta = testLeft - referenceLeft;
+
+ assertEquals("views are not horizontally center aligned", center, delta);
+ }
+
+ /**
+ * Assert that the <code>test</code> view is vertically center aligned
+ * with respect to the <code>reference</code> view.
+ *
+ * @param reference The reference view
+ * @param test The view that should be center aligned with the reference view
+ */
+ static public void assertVerticalCenterAligned(View reference, View test) {
+ int[] xy = new int[2];
+ reference.getLocationOnScreen(xy);
+ int referenceTop = xy[1];
+
+ test.getLocationOnScreen(xy);
+ int testTop = xy[1];
+
+ int center = (reference.getMeasuredHeight() - test.getMeasuredHeight()) / 2;
+ int delta = testTop - referenceTop;
+
+ assertEquals("views are not vertically center aligned", center, delta);
+ }
+
+ /**
+ * Assert the specified group's integrity. The children count should be >= 0 and each
+ * child should be non-null.
+ *
+ * @param parent The group whose integrity to check
+ */
+ static public void assertGroupIntegrity(ViewGroup parent) {
+ final int count = parent.getChildCount();
+ assertTrue("child count should be >= 0", count >= 0);
+
+ for (int i = 0; i < count; i++) {
+ assertNotNull("group should not contain null children", parent.getChildAt(i));
+ assertSame(parent, parent.getChildAt(i).getParent());
+ }
+ }
+
+ /**
+ * Assert that the specified group contains a specific child once and only once.
+ *
+ * @param parent The group
+ * @param child The child that should belong to group
+ */
+ static public void assertGroupContains(ViewGroup parent, View child) {
+ final int count = parent.getChildCount();
+ assertTrue("Child count should be >= 0", count >= 0);
+
+ boolean found = false;
+ for (int i = 0; i < count; i++) {
+ if (parent.getChildAt(i) == child) {
+ if (!found) {
+ found = true;
+ } else {
+ assertTrue("child " + child + " is duplicated in parent", false);
+ }
+ }
+ }
+
+ assertTrue("group does not contain " + child, found);
+ }
+
+ /**
+ * Assert that the specified group does not contain a specific child.
+ *
+ * @param parent The group
+ * @param child The child that should not belong to group
+ */
+ static public void assertGroupNotContains(ViewGroup parent, View child) {
+ final int count = parent.getChildCount();
+ assertTrue("Child count should be >= 0", count >= 0);
+
+ for (int i = 0; i < count; i++) {
+ if (parent.getChildAt(i) == child) {
+ assertTrue("child " + child + " is found in parent", false);
+ }
+ }
+ }
+}