PLA-284 Add missing test of the playwright template

src/playwright/__tests__/index.ts

@@ -1,7 +1,32 @@
+import {execSync} from 'child_process'
 import {synthSnapshot} from 'projen/lib/util/synth'
 import {OttofellerPlaywrightProject, OttofellerPlaywrightProjectOptions} from '..'
 
+jest.mock('child_process')
+
 describe('Playwright template', () => {
+  describe('has sample code', () => {
+    test('included by default', () => {
+      const project = new TestPlaywrightProject()
+      const snapshot = synthSnapshot(project)
+      expect(snapshot['.env.development']).toBeDefined()
+      expect(snapshot['common/index.ts']).toBeDefined()
+      expect(snapshot['data/index.ts']).toBeDefined()
+      expect(snapshot['pages/index.ts']).toBeDefined()
+      expect(snapshot['specs/auth.spec.ts']).toBeDefined()
+    })
+
+    test('excluded with an option', () => {
+      const project = new TestPlaywrightProject({sampleCode: false})
+      const snapshot = synthSnapshot(project)
+      expect(snapshot['.env.development']).not.toBeDefined()
+      expect(snapshot['common']).not.toBeDefined()
+      expect(snapshot['data']).not.toBeDefined()
+      expect(snapshot['pages']).not.toBeDefined()
+      expect(snapshot['specs']).not.toBeDefined()
+    })
+  })
+
   test('when ejected contains only tasks created by projen', () => {
     const PROJEN_EJECTING = process.env
     process.env.PROJEN_EJECTING = '1'
@@ -17,6 +42,16 @@ describe('Playwright template', () => {
       delete process.env.PROJEN_EJECTING
     }
   })
+
+  test('formats ".projenrc.ts" file after synthesis', () => {
+    // eslint-disable-next-line @typescript-eslint/consistent-type-assertions -- TS is not aware of the Jest mock, thus casting is needed
+    const mockedExecSync = execSync as unknown as jest.Mock<Buffer, [string]>
+    const project = new TestPlaywrightProject()
+    project.postSynthesize()
+    expect(mockedExecSync).toHaveBeenCalledTimes(2)
+    expect(mockedExecSync).toHaveBeenCalledWith('prettier --write .projenrc.ts')
+    expect(mockedExecSync).toHaveBeenCalledWith('eslint --fix .projenrc.ts')
+  })
 })
 
 class TestPlaywrightProject extends OttofellerPlaywrightProject {