Convert gesture junit tests to mocha (#2875)

tests/mocha/gesture_test.js

@@ -0,0 +1,87 @@
+/**
+ * @license
+ * Visual Blocks Editor
+ *
+ * Copyright 2019 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.
+ */
+
+/**
+ * @fileoverview Tests for gesture.
+ * @author marisaleung@google.com (Marisa Leung)
+ */
+'use strict';
+
+suite('Gesture', function() {
+
+  setup(function() {
+    this.workspace = new Blockly.Workspace();
+    this.e = {};
+  });
+
+  teardown(function() {
+    this.e = null;
+    this.workspace.dispose();
+  });
+
+  test('Constructor', function() {
+    var gesture = new Blockly.Gesture(this.e, this.workspace);
+    assertEquals(gesture.mostRecentEvent_, this.e);
+    assertEquals(gesture.creatorWorkspace_, this.workspace);
+  });
+
+  test('Field click - Click in workspace', function() {
+    var block = new Blockly.Block(this.workspace);
+    var field = new Blockly.Field();
+    field.setSourceBlock(block);
+    field.showEditor_ = function() {};
+    var gesture = new Blockly.Gesture(this.e, this.workspace);
+    gesture.setStartField(field);
+  
+    var isFieldClick = gesture.isFieldClick_();
+    assertEquals(isFieldClick, true);
+  });
+
+  function gestureIsFieldClick_InFlyoutHelper(flyout, expectedResult){
+    // Assign workspace flyout
+    this.workspace.flyout_ = flyout;
+    // Create a Field inside of a Block
+    var block = new Blockly.Block(this.workspace);
+    var field = new Blockly.Field();
+    field.setSourceBlock(block);
+    field.showEditor_ = function() {};
+    // Create gesture from the flyout
+    var gesture = new Blockly.Gesture(this.e, this.workspace.flyout_);
+    // Populate gesture with click start information
+    gesture.setStartField(field);
+    gesture.setStartFlyout_(this.workspace.flyout_);
+  
+    var isFieldClick = gesture.isFieldClick_();
+    assertEquals(isFieldClick, expectedResult);
+  }
+
+  test('Field click - Auto close flyout', function() {
+    var flyout = new Blockly.VerticalFlyout({});
+    flyout.autoClose = false;
+    gestureIsFieldClick_InFlyoutHelper.call(this, flyout, true);
+  });
+
+  test('Field click - Always open flyout', function() {
+    var flyout = new Blockly.VerticalFlyout({});
+    flyout.autoClose = false;
+    gestureIsFieldClick_InFlyoutHelper.call(this, flyout, true);
+  });
+  
+});

tests/mocha/index.html

@@ -43,6 +43,7 @@
     <script src="field_registry_test.js"></script>
     <script src="field_textinput_test.js"></script>
     <script src="field_variable_test.js"></script>
+    <script src="gesture_test.js"></script>
     <script src="key_map_test.js"></script>
     <script src="navigation_modify_test.js"></script>
     <script src="navigation_test.js"></script>