chore: add mock of vscode, draftly migrate test case of creating interface

Author: IvanJobs

__mocks__/vscode.js

@@ -0,0 +1,120 @@
+// Copyright (c) Microsoft Corporation. All rights reserved.
+// Licensed under the MIT license.
+
+const path = require("path");
+
+// Class
+const Uri = {
+  fsPath: "defaultPath",
+  file: jest.fn()
+};
+
+const Diagnostic = jest.fn((range, message, severity) => {
+  return {
+    range,
+    message,
+    severity
+  };
+});
+
+const Range = jest.fn();
+
+// Interface
+const OutputChannel = {
+  appendLine: jest.fn(),
+  show: jest.fn(),
+  dispose: jest.fn()
+};
+
+const ExtensionContext = {
+  asAbsolutePath: jest.fn(p => {
+    const rootPath = path.resolve(__dirname, "..");
+    return path.join(rootPath, p);
+  })
+};
+
+const WorkspaceFolder = {
+  uri: Uri
+};
+
+const TextDocument = {
+  uri: Uri,
+  getText: jest.fn(),
+  positionAt: jest.fn()
+};
+
+const DiagnosticCollection = {
+  set: jest.fn(),
+  delete: jest.fn()
+};
+
+const QuickPickOptions = {};
+
+const QuickPickItem = {};
+
+const OpenDialogOptions = {};
+
+const InputBoxOptions = {};
+
+// Enum
+const ConfigurationTarget = {
+  Global: 1,
+  workspace: 2,
+  WorkspaceFolder: 3
+};
+
+const DiagnosticSeverity = {
+  Error: 0,
+  Warning: 1,
+  Information: 2,
+  Hint: 3
+};
+
+// Namespace
+const window = {
+  createOutputChannel: jest.fn(() => OutputChannel),
+  showQuickPick: jest.fn(items => items[0]),
+  showOpenDialog: jest.fn(),
+  showInputBox: jest.fn(),
+  showTextDocument: jest.fn(),
+  showInformationMessage: jest.fn(),
+  showWarningMessage: jest.fn(),
+  showErrorMessage: jest.fn()
+};
+
+const commands = {
+  executeCommand: jest.fn()
+};
+
+const workspace = {
+  workspaceFolders: undefined
+};
+
+const vscode = {
+  // Class
+  Uri,
+  Diagnostic,
+  Range,
+
+  // Interface
+  OutputChannel,
+  ExtensionContext,
+  WorkspaceFolder,
+  QuickPickOptions,
+  QuickPickItem,
+  OpenDialogOptions,
+  InputBoxOptions,
+  TextDocument,
+  DiagnosticCollection,
+
+  // Enum
+  ConfigurationTarget,
+  DiagnosticSeverity,
+
+  // Namespace
+  window,
+  commands,
+  workspace
+};
+
+module.exports = vscode;

src/test/deviceModelManager.test.ts

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+// Copyright (c) Microsoft Corporation. All rights reserved.
+// Licensed under the MIT license.
+
+import * as path from "path";
+import { ColorizedChannel } from "../common/colorizedChannel";
+import { Constants } from "../common/constants";
+import { ProcessError } from "../common/processError";
+import { Utility } from "../common/utility";
+import { DeviceModelManager, ModelType } from "../deviceModel/deviceModelManager";
+import { UI } from "../view/ui";
+
+const vscode = require("../../__mocks__/vscode");
+
+jest.mock("../common/colorizedChannel");
+jest.mock("../common/utility");
+jest.mock("../view/ui");
+
+describe("Device model manager", () => {
+  const folder = "root";
+  const context = vscode.ExtensionContext;
+  const channel = new ColorizedChannel(Constants.CHANNEL_NAME);
+  const manager = new DeviceModelManager(context, channel);
+
+  UI.selectRootFolder = jest.fn().mockResolvedValue(folder);
+  UI.inputModelName = jest.fn().mockResolvedValue("test");
+
+  test("create interface successfully", async () => {
+    await manager.createModel(ModelType.Interface);
+    expect(UI.openAndShowTextDocument).toHaveBeenCalledWith(path.join(folder, "test.interface.json"));
+  });
+
+  test("create interface with error", async () => {
+    Utility.createFileFromTemplate = jest.fn().mockRejectedValueOnce(new Error());
+    await expect(manager.createModel(ModelType.Interface)).rejects.toThrow(ProcessError);
+  });
+});