Add test for finishing a drag on focus lost

Author: RoboErikG

test/webdriverio/test/basic_test.ts

@@ -7,6 +7,7 @@
 import * as chai from 'chai';
 import * as Blockly from 'blockly';
 import {
+  isDragging,
   setCurrentCursorNodeById,
   setCurrentCursorNodeByIdAndFieldName,
   getCurrentFocusNodeId,
@@ -247,6 +248,21 @@ suite('Keyboard navigation on Blocks', function () {
       .expect(await getCurrentFocusedBlockId(this.browser))
       .equal('controls_repeat_1');
   });
+
+  test('Losing focus cancels move', async function () {
+    await tabNavigateToWorkspace(this.browser);
+    await this.browser.pause(PAUSE_TIME);
+    await setCurrentCursorNodeById(this.browser, 'text_print_1');
+    await this.browser.keys("m");
+    await this.browser.pause(PAUSE_TIME);
+
+    chai.assert.isTrue(await isDragging(this.browser));
+
+    await this.browser.keys(Key.Tab);
+    await this.browser.pause(PAUSE_TIME);
+
+    chai.assert.isFalse(await isDragging(this.browser));
+  });
 });
 
 // TODO(#499) These tests fail because focusing on a field doesn't update the cursor

test/webdriverio/test/test_setup.ts

@@ -356,3 +356,15 @@ export async function tabNavigateForward(browser: WebdriverIO.Browser) {
   await browser.keys(webdriverio.Key.Tab);
   await browser.pause(PAUSE_TIME);
 }
+
+/**
+ * Returns whether there's a drag in progress on the main workspace.
+ *
+ * @param browser The active WebdriverIO Browser object.
+ */
+export async function isDragging(browser: WebdriverIO.Browser): Promise<boolean> {
+  return await browser.execute(() => {
+    const workspaceSvg = Blockly.getMainWorkspace() as Blockly.WorkspaceSvg;
+    return workspaceSvg.isDragging();
+  });
+}