Auto convert content shell tests to JUnit4

content/public/android/javatests/src/org/chromium/content/browser/webcontents/AccessibilitySnapshotTest.java

-// Copyright 2016 The Chromium Authors. All rights reserved.
+// Copyright 2017 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 package org.chromium.content.browser.webcontents;
 
 import android.support.test.filters.SmallTest;
 
+import org.junit.Assert;
+import org.junit.Rule;
+import org.junit.Test;
+import org.junit.runner.RunWith;
+
+import org.chromium.base.test.BaseJUnit4ClassRunner;
 import org.chromium.base.test.util.CallbackHelper;
 import org.chromium.base.test.util.UrlUtils;
 import org.chromium.content.browser.test.util.JavaScriptUtils;
 import org.chromium.content_public.browser.AccessibilitySnapshotCallback;
 import org.chromium.content_public.browser.AccessibilitySnapshotNode;
-import org.chromium.content_shell_apk.ContentShellTestBase;
+import org.chromium.content_shell_apk.ContentShellActivityTestRule;
 
 /**
  * Accessibility snapshot tests for Assist feature.
  */
-public class AccessibilitySnapshotTest extends ContentShellTestBase {
+@RunWith(BaseJUnit4ClassRunner.class)
+public class AccessibilitySnapshotTest {
+    private static final double ASSERTION_DELTA = 0.00000001;
+
+    @Rule
+    public ContentShellActivityTestRule mActivityTestRule = new ContentShellActivityTestRule();
+
     private static class AccessibilityCallbackHelper extends CallbackHelper {
         private AccessibilitySnapshotNode mRoot;
 
         public void notifyCalled(AccessibilitySnapshotNode root) {
             mRoot = root;
             super.notifyCalled();
         }
 
         public AccessibilitySnapshotNode getValue() {
             return mRoot;
         }
     }
 
     private AccessibilitySnapshotNode receiveAccessibilitySnapshot(String data, String js)
             throws Throwable {
-        launchContentShellWithUrl(UrlUtils.encodeHtmlDataUri(data));
-        waitForActiveShellToBeDoneLoading();
+        mActivityTestRule.launchContentShellWithUrl(UrlUtils.encodeHtmlDataUri(data));
+        mActivityTestRule.waitForActiveShellToBeDoneLoading();
         if (js != null) {
-            JavaScriptUtils.executeJavaScriptAndWaitForResult(getWebContents(), js);
+            JavaScriptUtils.executeJavaScriptAndWaitForResult(
+                    mActivityTestRule.getWebContents(), js);
         }
 
         final AccessibilityCallbackHelper callbackHelper = new AccessibilityCallbackHelper();
         final AccessibilitySnapshotCallback callback = new AccessibilitySnapshotCallback() {
             @Override
             public void onAccessibilitySnapshot(AccessibilitySnapshotNode root) {
                 callbackHelper.notifyCalled(root);
             }
         };
         // read the callbackcount before executing the call on UI thread, since it may
         // synchronously complete.
         final int callbackCount = callbackHelper.getCallCount();
-        runTestOnUiThread(new Runnable() {
+        mActivityTestRule.runOnUiThread(new Runnable() {
             @Override
             public void run() {
-                getWebContents().requestAccessibilitySnapshot(callback);
+                mActivityTestRule.getWebContents().requestAccessibilitySnapshot(callback);
             }
         });
         callbackHelper.waitForCallback(callbackCount);
         return callbackHelper.getValue();
     }
 
     /**
      * Verifies that AX tree is returned.
      */
+    @Test
     @SmallTest
     public void testRequestAccessibilitySnapshot() throws Throwable {
         final String data = "<button>Click</button>";
         AccessibilitySnapshotNode root = receiveAccessibilitySnapshot(data, null);
-        assertEquals(1, root.children.size());
-        assertEquals("", root.text);
+        Assert.assertEquals(1, root.children.size());
+        Assert.assertEquals("", root.text);
         AccessibilitySnapshotNode child = root.children.get(0);
-        assertEquals(1, child.children.size());
-        assertEquals("", child.text);
+        Assert.assertEquals(1, child.children.size());
+        Assert.assertEquals("", child.text);
         AccessibilitySnapshotNode grandChild = child.children.get(0);
-        assertEquals(0, grandChild.children.size());
-        assertEquals("Click", grandChild.text);
+        Assert.assertEquals(0, grandChild.children.size());
+        Assert.assertEquals("Click", grandChild.text);
     }
 
+    @Test
     @SmallTest
     public void testRequestAccessibilitySnapshotColors() throws Throwable {
         final String data = "<p style=\"color:#123456;background:#abcdef\">color</p>";
         AccessibilitySnapshotNode root = receiveAccessibilitySnapshot(data, null);
-        assertEquals(1, root.children.size());
-        assertEquals("", root.text);
+        Assert.assertEquals(1, root.children.size());
+        Assert.assertEquals("", root.text);
         AccessibilitySnapshotNode child = root.children.get(0);
-        assertEquals("color", child.text);
-        assertTrue(child.hasStyle);
-        assertEquals("ff123456", Integer.toHexString(child.color));
-        assertEquals("ffabcdef", Integer.toHexString(child.bgcolor));
+        Assert.assertEquals("color", child.text);
+        Assert.assertTrue(child.hasStyle);
+        Assert.assertEquals("ff123456", Integer.toHexString(child.color));
+        Assert.assertEquals("ffabcdef", Integer.toHexString(child.bgcolor));
     }
 
+    @Test
     @SmallTest
     public void testRequestAccessibilitySnapshotFontSize() throws Throwable {
         final String data = "<html><head><style> "
                 + "    p { font-size:16px; transform: scale(2); }"
                 + "    </style></head><body><p>foo</p></body></html>";
         AccessibilitySnapshotNode root = receiveAccessibilitySnapshot(data, null);
-        assertEquals(1, root.children.size());
-        assertEquals("", root.text);
+        Assert.assertEquals(1, root.children.size());
+        Assert.assertEquals("", root.text);
         AccessibilitySnapshotNode child = root.children.get(0);
-        assertTrue(child.hasStyle);
-        assertEquals("foo", child.text);
+        Assert.assertTrue(child.hasStyle);
+        Assert.assertEquals("foo", child.text);
 
         // The font size should take the scale into account.
-        assertEquals(32.0, child.textSize, 1.0);
+        Assert.assertEquals(32.0, child.textSize, 1.0);
     }
 
+    @Test
     @SmallTest
     public void testRequestAccessibilitySnapshotStyles() throws Throwable {
         final String data = "<html><head><style> "
                 + "    body { font: italic bold 12px Courier; }"
                 + "    </style></head><body><p>foo</p></body></html>";
         AccessibilitySnapshotNode root = receiveAccessibilitySnapshot(data, null);
-        assertEquals(1, root.children.size());
-        assertEquals("", root.text);
+        Assert.assertEquals(1, root.children.size());
+        Assert.assertEquals("", root.text);
         AccessibilitySnapshotNode child = root.children.get(0);
-        assertEquals("foo", child.text);
-        assertTrue(child.hasStyle);
-        assertTrue(child.bold);
-        assertTrue(child.italic);
-        assertFalse(child.lineThrough);
-        assertFalse(child.underline);
+        Assert.assertEquals("foo", child.text);
+        Assert.assertTrue(child.hasStyle);
+        Assert.assertTrue(child.bold);
+        Assert.assertTrue(child.italic);
+        Assert.assertFalse(child.lineThrough);
+        Assert.assertFalse(child.underline);
     }
 
+    @Test
     @SmallTest
     public void testRequestAccessibilitySnapshotStrongStyle() throws Throwable {
         final String data = "<html><body><p>foo</p><p><strong>bar</strong></p></body></html>";
         AccessibilitySnapshotNode root = receiveAccessibilitySnapshot(data, null);
-        assertEquals(2, root.children.size());
-        assertEquals("", root.text);
+        Assert.assertEquals(2, root.children.size());
+        Assert.assertEquals("", root.text);
         AccessibilitySnapshotNode child1 = root.children.get(0);
-        assertEquals("foo", child1.text);
-        assertTrue(child1.hasStyle);
-        assertFalse(child1.bold);
+        Assert.assertEquals("foo", child1.text);
+        Assert.assertTrue(child1.hasStyle);
+        Assert.assertFalse(child1.bold);
         AccessibilitySnapshotNode child2 = root.children.get(1);
         AccessibilitySnapshotNode child2child = child2.children.get(0);
-        assertEquals("bar", child2child.text);
-        assertEquals(child1.textSize, child2child.textSize);
-        assertTrue(child2child.bold);
+        Assert.assertEquals("bar", child2child.text);
+        Assert.assertEquals(child1.textSize, child2child.textSize, ASSERTION_DELTA);
+        Assert.assertTrue(child2child.bold);
     }
 
+    @Test
     @SmallTest
     public void testRequestAccessibilitySnapshotItalicStyle() throws Throwable {
         final String data = "<html><body><i>foo</i></body></html>";
         AccessibilitySnapshotNode root = receiveAccessibilitySnapshot(data, null);
-        assertEquals(1, root.children.size());
-        assertEquals("", root.text);
+        Assert.assertEquals(1, root.children.size());
+        Assert.assertEquals("", root.text);
         AccessibilitySnapshotNode child = root.children.get(0);
         AccessibilitySnapshotNode grandchild = child.children.get(0);
-        assertEquals("foo", grandchild.text);
-        assertTrue(grandchild.hasStyle);
-        assertTrue(grandchild.italic);
+        Assert.assertEquals("foo", grandchild.text);
+        Assert.assertTrue(grandchild.hasStyle);
+        Assert.assertTrue(grandchild.italic);
     }
 
+    @Test
     @SmallTest
     public void testRequestAccessibilitySnapshotBoldStyle() throws Throwable {
         final String data = "<html><body><b>foo</b></body></html>";
         AccessibilitySnapshotNode root = receiveAccessibilitySnapshot(data, null);
-        assertEquals(1, root.children.size());
-        assertEquals("", root.text);
+        Assert.assertEquals(1, root.children.size());
+        Assert.assertEquals("", root.text);
         AccessibilitySnapshotNode child = root.children.get(0);
         AccessibilitySnapshotNode grandchild = child.children.get(0);
-        assertEquals("foo", grandchild.text);
-        assertTrue(grandchild.hasStyle);
-        assertTrue(grandchild.bold);
+        Assert.assertEquals("foo", grandchild.text);
+        Assert.assertTrue(grandchild.hasStyle);
+        Assert.assertTrue(grandchild.bold);
     }
 
+    @Test
     @SmallTest
     public void testRequestAccessibilitySnapshotNoStyle() throws Throwable {
         final String data = "<table><thead></thead></table>";
         AccessibilitySnapshotNode root = receiveAccessibilitySnapshot(data, null);
-        assertEquals(1, root.children.size());
-        assertEquals("", root.text);
+        Assert.assertEquals(1, root.children.size());
+        Assert.assertEquals("", root.text);
         AccessibilitySnapshotNode grandChild = root.children.get(0).children.get(0);
-        assertFalse(grandChild.hasStyle);
+        Assert.assertFalse(grandChild.hasStyle);
     }
 
     private String getSelectionScript(String node1, int start, String node2, int end) {
         return "var element1 = document.getElementById('" + node1 + "');"
                 + "var node1 = element1.childNodes.item(0);"
                 + "var range=document.createRange();"
                 + "range.setStart(node1," + start + ");"
                 + "var element2 = document.getElementById('" + node2 + "');"
                 + "var node2 = element2.childNodes.item(0);"
                 + "range.setEnd(node2," + end + ");"
                 + "var selection=window.getSelection();"
                 + "selection.removeAllRanges();"
                 + "selection.addRange(range);";
     }
 
+    @Test
     @SmallTest
     public void testRequestAccessibilitySnapshotOneCharacterSelection() throws Throwable {
         final String data = "<html><body><b id='node'>foo</b></body></html>";
 
         AccessibilitySnapshotNode root =
                 receiveAccessibilitySnapshot(data, getSelectionScript("node", 0, "node", 1));
-        assertEquals(1, root.children.size());
-        assertEquals("", root.text);
+        Assert.assertEquals(1, root.children.size());
+        Assert.assertEquals("", root.text);
         AccessibilitySnapshotNode child = root.children.get(0);
         AccessibilitySnapshotNode grandchild = child.children.get(0);
-        assertEquals("foo", grandchild.text);
-        assertEquals(0, grandchild.startSelection);
-        assertEquals(1, grandchild.endSelection);
+        Assert.assertEquals("foo", grandchild.text);
+        Assert.assertEquals(0, grandchild.startSelection);
+        Assert.assertEquals(1, grandchild.endSelection);
     }
 
+    @Test
+
     @SmallTest
     public void testRequestAccessibilitySnapshotOneNodeSelection() throws Throwable {
         final String data = "<html><body><b id='node'>foo</b></body></html>";
 
         AccessibilitySnapshotNode root =
                 receiveAccessibilitySnapshot(data, getSelectionScript("node", 0, "node", 3));
-        assertEquals(1, root.children.size());
-        assertEquals("", root.text);
+        Assert.assertEquals(1, root.children.size());
+        Assert.assertEquals("", root.text);
         AccessibilitySnapshotNode child = root.children.get(0);
         AccessibilitySnapshotNode grandchild = child.children.get(0);
-        assertEquals("foo", grandchild.text);
-        assertEquals(0, grandchild.startSelection);
-        assertEquals(3, grandchild.endSelection);
+        Assert.assertEquals("foo", grandchild.text);
+        Assert.assertEquals(0, grandchild.startSelection);
+        Assert.assertEquals(3, grandchild.endSelection);
     }
 
+    @Test
     @SmallTest
     public void testRequestAccessibilitySnapshotSubsequentNodeSelection() throws Throwable {
         final String data = "<html><body><b id='node1'>foo</b><b id='node2'>bar</b></body></html>";
 
         AccessibilitySnapshotNode root =
                 receiveAccessibilitySnapshot(data, getSelectionScript("node1", 1, "node2", 1));
-        assertEquals(1, root.children.size());
-        assertEquals("", root.text);
+        Assert.assertEquals(1, root.children.size());
+        Assert.assertEquals("", root.text);
         AccessibilitySnapshotNode child = root.children.get(0);
         AccessibilitySnapshotNode grandchild = child.children.get(0);
-        assertEquals("foo", grandchild.text);
-        assertEquals(1, grandchild.startSelection);
-        assertEquals(3, grandchild.endSelection);
+        Assert.assertEquals("foo", grandchild.text);
+        Assert.assertEquals(1, grandchild.startSelection);
+        Assert.assertEquals(3, grandchild.endSelection);
         grandchild = child.children.get(1);
-        assertEquals("bar", grandchild.text);
-        assertEquals(0, grandchild.startSelection);
-        assertEquals(1, grandchild.endSelection);
+        Assert.assertEquals("bar", grandchild.text);
+        Assert.assertEquals(0, grandchild.startSelection);
+        Assert.assertEquals(1, grandchild.endSelection);
     }
 
+    @Test
     @SmallTest
     public void testRequestAccessibilitySnapshotMultiNodeSelection() throws Throwable {
         final String data =
                 "<html><body><b id='node1'>foo</b><b>middle</b><b id='node2'>bar</b></body></html>";
 
         AccessibilitySnapshotNode root =
                 receiveAccessibilitySnapshot(data, getSelectionScript("node1", 1, "node2", 1));
-        assertEquals(1, root.children.size());
-        assertEquals("", root.text);
+        Assert.assertEquals(1, root.children.size());
+        Assert.assertEquals("", root.text);
         AccessibilitySnapshotNode child = root.children.get(0);
         AccessibilitySnapshotNode grandchild = child.children.get(0);
-        assertEquals("foo", grandchild.text);
-        assertEquals(1, grandchild.startSelection);
-        assertEquals(3, grandchild.endSelection);
+        Assert.assertEquals("foo", grandchild.text);
+        Assert.assertEquals(1, grandchild.startSelection);
+        Assert.assertEquals(3, grandchild.endSelection);
         grandchild = child.children.get(1);
-        assertEquals("middle", grandchild.text);
-        assertEquals(0, grandchild.startSelection);
-        assertEquals(6, grandchild.endSelection);
+        Assert.assertEquals("middle", grandchild.text);
+        Assert.assertEquals(0, grandchild.startSelection);
+        Assert.assertEquals(6, grandchild.endSelection);
         grandchild = child.children.get(2);
-        assertEquals("bar", grandchild.text);
-        assertEquals(0, grandchild.startSelection);
-        assertEquals(1, grandchild.endSelection);
+        Assert.assertEquals("bar", grandchild.text);
+        Assert.assertEquals(0, grandchild.startSelection);
+        Assert.assertEquals(1, grandchild.endSelection);
     }
 
+    @Test
     @SmallTest
     public void testRequestAccessibilitySnapshotInputSelection() throws Throwable {
         final String data = "<html><body><input id='input' value='Hello, world'></body></html>";
         final String js = "var input = document.getElementById('input');"
                 + "input.select();"
                 + "input.selectionStart = 0;"
                 + "input.selectionEnd = 5;";
         AccessibilitySnapshotNode root = receiveAccessibilitySnapshot(data, js);
-        assertEquals(1, root.children.size());
-        assertEquals("", root.text);
+        Assert.assertEquals(1, root.children.size());
+        Assert.assertEquals("", root.text);
         AccessibilitySnapshotNode child = root.children.get(0);
         AccessibilitySnapshotNode grandchild = child.children.get(0);
-        assertEquals("Hello, world", grandchild.text);
-        assertEquals(0, grandchild.startSelection);
-        assertEquals(5, grandchild.endSelection);
+        Assert.assertEquals("Hello, world", grandchild.text);
+        Assert.assertEquals(0, grandchild.startSelection);
+        Assert.assertEquals(5, grandchild.endSelection);
     }
 
+    @Test
     @SmallTest
     public void testRequestAccessibilitySnapshotPasswordField() throws Throwable {
         final String data =
                 "<html><body><input id='input' type='password' value='foo'></body></html>";
         AccessibilitySnapshotNode root = receiveAccessibilitySnapshot(data, null);
-        assertEquals(1, root.children.size());
-        assertEquals("", root.text);
+        Assert.assertEquals(1, root.children.size());
+        Assert.assertEquals("", root.text);
         AccessibilitySnapshotNode child = root.children.get(0);
         AccessibilitySnapshotNode grandchild = child.children.get(0);
-        assertEquals("•••", grandchild.text);
+        Assert.assertEquals("•••", grandchild.text);
     }
 }