Add workspace comment tests

tests/jsunit/workspace_comment_test.js

@@ -0,0 +1,86 @@
+/**
+ * @license
+ * Blockly Tests
+ *
+ * Copyright 2017 Google Inc.
+ * https://developers.google.com/blockly/
+ *
+ * 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.
+ */
+'use strict';
+
+goog.require('goog.testing');
+
+var workspace;
+
+function workspaceCommentTest_setUp() {
+  workspace = new Blockly.Workspace();
+}
+
+function workspaceCommentTest_tearDown() {
+  workspace.dispose();
+}
+
+function test_noWorkspaceComments() {
+  workspaceCommentTest_setUp();
+  try {
+    assertEquals('Empty workspace: no comments (1).', 0, workspace.getTopComments(true).length);
+    assertEquals('Empty workspace: no comments (2).', 0, workspace.getTopComments(false).length);
+    workspace.clear();
+    assertEquals('Empty workspace: no comments (3).', 0, workspace.getTopComments(true).length);
+    assertEquals('Empty workspace: no comments (4).', 0, workspace.getTopComments(false).length);
+  } finally {
+    workspaceCommentTest_tearDown();
+  }
+}
+
+function test_oneWorkspaceComment() {
+  workspaceCommentTest_setUp();
+  try {
+    var comment = new Blockly.WorkspaceComment(workspace, 'comment text', 0, 0, 'comment id');
+    assertEquals('One comment on workspace (1).', 1, workspace.getTopComments(true).length);
+    assertEquals('One comment on workspace  (2).', 1, workspace.getTopComments(false).length);
+    assertEquals('Comment db contains this comment.', comment, workspace.commentDB_['comment id']);
+    workspace.clear();
+    assertEquals('Cleared workspace: no comments (3).', 0, workspace.getTopComments(true).length);
+    assertEquals('Cleared workspace: no comments (4).', 0, workspace.getTopComments(false).length);
+    assertFalse('Comment DB does not contain this comment.', 'comment id' in workspace.commentDB_);
+  } finally {
+    workspaceCommentTest_tearDown();
+  }
+}
+
+function test_getWorkspaceCommentById() {
+  workspaceCommentTest_setUp();
+  try {
+    var comment = new Blockly.WorkspaceComment(workspace, 'comment text', 0, 0, 'comment id');
+    assertEquals('Getting a comment by id.', comment, workspace.getCommentById('comment id'));
+    assertEquals('No comment found.', null, workspace.getCommentById('not a comment'));
+    comment.dispose();
+    assertEquals('Can\'t find the comment.', null, workspace.getCommentById('comment id'));
+  } finally {
+    workspaceCommentTest_tearDown();
+  }
+}
+
+function test_disposeWsCommentTwice() {
+  workspaceCommentTest_setUp();
+  try {
+    var comment = new Blockly.WorkspaceComment(workspace, 'comment text', 0, 0, 'comment id');
+    comment.dispose();
+    // Nothing should go wrong the second time dispose is called.
+    comment.dispose();
+  }finally {
+    workspaceCommentTest_tearDown();
+  }
+}