cli: added test for backendPlugin create factory

Signed-off-by: Patrik Oldsberg <poldsberg@gmail.com>
2021-11-12 18:19:33 +01:00
parent 033f6abfce
commit 1cf00cbe33
1 changed files with 130 additions and 0 deletions
@@ -0,0 +1,130 @@
+/*
+ * Copyright 2021 The Backstage Authors
+ *
+ * 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.
+ */
+
+import fs from 'fs-extra';
+import mockFs from 'mock-fs';
+import { resolve as resolvePath } from 'path';
+import { WriteStream } from 'tty';
+import { paths } from '../../paths';
+import { Task } from '../../tasks';
+import { FactoryRegistry } from '../FactoryRegistry';
+import { backendPlugin } from './backendPlugin';
+
+function createMockOutputStream() {
+  const output = new Array<string>();
+  return [
+    output,
+    {
+      cursorTo: () => {},
+      clearLine: () => {},
+      moveCursor: () => {},
+      write: (msg: string) =>
+        // Clean up colors and whitespace
+        // eslint-disable-next-line no-control-regex
+        output.push(msg.replace(/\x1B\[\d\dm/g, '').trim()),
+    } as unknown as WriteStream & { fd: any },
+  ] as const;
+}
+
+describe('backendPlugin factory', () => {
+  beforeEach(() => {
+    jest.spyOn(paths, 'targetRoot', 'get').mockReturnValue('/root');
+    jest
+      .spyOn(paths, 'resolveTargetRoot')
+      .mockImplementation((...ps) => resolvePath('/root', ...ps));
+  });
+
+  afterEach(() => {
+    mockFs.restore();
+    jest.resetAllMocks();
+  });
+
+  it('should create a backend plugin', async () => {
+    mockFs({
+      '/root': {
+        packages: {
+          backend: {
+            'package.json': JSON.stringify({}),
+          },
+        },
+        plugins: mockFs.directory(),
+      },
+      [paths.resolveOwn('templates')]: mockFs.load(
+        paths.resolveOwn('templates'),
+      ),
+    });
+
+    const options = await FactoryRegistry.populateOptions(backendPlugin, {
+      id: 'test',
+    });
+
+    let modified = false;
+
+    const [output, mockStream] = createMockOutputStream();
+    jest.spyOn(process, 'stderr', 'get').mockReturnValue(mockStream);
+    jest.spyOn(Task, 'forCommand').mockResolvedValue();
+
+    await backendPlugin.create(options, {
+      private: true,
+      isMonoRepo: true,
+      defaultVersion: '1.0.0',
+      markAsModified: () => {
+        modified = true;
+      },
+      createTemporaryDirectory: () => fs.mkdtemp('test'),
+    });
+
+    expect(modified).toBe(true);
+
+    expect(output).toEqual([
+      'Checking Prerequisites:',
+      'availability  plugins/test-backend ✔',
+      'creating      temp dir ✔',
+      'Executing Template:',
+      'copying       .eslintrc.js ✔',
+      'templating    README.md.hbs ✔',
+      'templating    package.json.hbs ✔',
+      'copying       tsconfig.json ✔',
+      'copying       index.ts ✔',
+      'templating    run.ts.hbs ✔',
+      'copying       setupTests.ts ✔',
+      'copying       router.test.ts ✔',
+      'copying       router.ts ✔',
+      'templating    standaloneServer.ts.hbs ✔',
+      'Installing:',
+      'moving        plugins/test-backend ✔',
+      'backend       adding dependency ✔',
+    ]);
+
+    await expect(
+      fs.readJson('/root/packages/backend/package.json'),
+    ).resolves.toEqual({
+      dependencies: {
+        'plugin-test-backend': '^1.0.0',
+      },
+    });
+
+    expect(Task.forCommand).toHaveBeenCalledTimes(2);
+    expect(Task.forCommand).toHaveBeenCalledWith('yarn install', {
+      cwd: '/root/plugins/test-backend',
+      optional: true,
+    });
+    expect(Task.forCommand).toHaveBeenCalledWith('yarn lint --fix', {
+      cwd: '/root/plugins/test-backend',
+      optional: true,
+    });
+  });
+});