blockly/tests/mocha/zoom_controls_test.js

/**
 * @license
 * Copyright 2020 Google LLC
 * SPDX-License-Identifier: Apache-2.0
 */

import {EventType} from '../../build/src/core/events/type.js';
import {assert} from '../../node_modules/chai/index.js';
import {assertEventFired, assertEventNotFired} from './test_helpers/events.js';
import {
  sharedTestSetup,
  sharedTestTeardown,
} from './test_helpers/setup_teardown.js';
import {simulateClick} from './test_helpers/user_input.js';

suite('Zoom Controls', function () {
  setup(function () {
    sharedTestSetup.call(this);
    this.workspace = Blockly.inject('blocklyDiv', {'zoom': {'controls': true}});
    this.zoomControls = this.workspace.zoomControls_;
  });
  teardown(function () {
    sharedTestTeardown.call(this);
  });

  suite('Events', function () {
    function closeToMatcher(expectedValue, delta) {
      return sinon.match(function (value) {
        return Math.abs(value - expectedValue) <= delta;
      });
    }
    test('Zoom in', function () {
      simulateClick(this.zoomControls.zoomInGroup);

      assertEventFired(
        this.eventsFireStub,
        Blockly.Events.Click,
        {targetType: 'zoom_controls', type: EventType.CLICK},
        this.workspace.id,
        undefined,
      );
      assertEventNotFired(this.eventsFireStub, Blockly.Events.Click, {
        targetType: 'workspace',
        type: EventType.CLICK,
      });
      assert.closeTo(this.workspace.getScale(), 1.2, 0.05);
    });
    test('Zoom out', function () {
      simulateClick(this.zoomControls.zoomOutGroup);

      assertEventFired(
        this.eventsFireStub,
        Blockly.Events.Click,
        {targetType: 'zoom_controls', type: EventType.CLICK},
        this.workspace.id,
        undefined,
      );
      assertEventNotFired(this.eventsFireStub, Blockly.Events.Click, {
        targetType: 'workspace',
        type: EventType.CLICK,
      });
      assert.closeTo(this.workspace.getScale(), 0.8, 0.05);
    });
    test('Reset zoom', function () {
      simulateClick(this.zoomControls.zoomResetGroup);

      assertEventFired(
        this.eventsFireStub,
        Blockly.Events.Click,
        {targetType: 'zoom_controls', type: EventType.CLICK},
        this.workspace.id,
        undefined,
      );
      assertEventNotFired(this.eventsFireStub, Blockly.Events.Click, {
        targetType: 'workspace',
        type: EventType.CLICK,
      });
      assert.equal(this.workspace.getScale(), 1);
    });
  });
});