fix(e2e-webdriverio): ensure EOL in existing tsconfig.json

Author: ParkerM

packages/@vue/cli-plugin-e2e-webdriverio/__tests__/wdioGenerator.spec.js

@@ -0,0 +1,23 @@
+jest.setTimeout(process.env.APPVEYOR ? 120000 : 60000)
+
+const create = require('@vue/cli-test-utils/createTestProject')
+
+test('should add types to existing tsconfig.json', async () => {
+  const { dir, read, write } = await create('e2e-webdriverio-tsconfig', {
+    plugins: {
+      '@vue/cli-plugin-typescript': {},
+      '@vue/cli-plugin-e2e-webdriverio': {
+        webdrivers: ['chrome']
+      }
+    }
+  })
+  await write('tsconfig.json', JSON.stringify({ compilerOptions: { types: ['some-type'] }}))
+
+  const invoke = require('@vue/cli/lib/invoke')
+  await invoke('e2e-webdriverio', { webdrivers: ['chrome'] }, dir)
+
+  const tsconfig = await read('tsconfig.json')
+  expect(tsconfig).toMatch(/\r?\n$/)
+  expect(JSON.parse(tsconfig)['compilerOptions']['types'])
+    .toEqual(['some-type', 'mocha', '@wdio/mocha-framework', '@wdio/sync'])
+})

packages/@vue/cli-plugin-e2e-webdriverio/generator/index.js

@@ -21,7 +21,7 @@ const applyTS = module.exports.applyTS = (api, invoking) => {
             }
           }
         }
-        files['tsconfig.json'] = JSON.stringify(parsed, null, 2)
+        files['tsconfig.json'] = JSON.stringify(parsed, null, 2) + '\n'
       }
     })
   }