test: add e2e tests

fix: boolean attributes client side

test/unit/plugin-server.test.js

@@ -0,0 +1,84 @@
+import { mount, VueMetaServerPlugin, loadVueMetaPlugin } from '../utils'
+import { defaultOptions } from '../utils/constants'
+
+jest.mock('../../package.json', () => ({
+  version: 'test-version'
+}))
+
+describe('plugin', () => {
+  let Vue
+
+  beforeEach(() => jest.clearAllMocks())
+  beforeAll(() => (Vue = loadVueMetaPlugin()))
+
+  test('is loaded', () => {
+    const instance = new Vue()
+    expect(instance.$meta).toEqual(expect.any(Function))
+
+    expect(instance.$meta().inject).toEqual(expect.any(Function))
+    expect(instance.$meta().refresh).toEqual(expect.any(Function))
+    expect(instance.$meta().getOptions).toEqual(expect.any(Function))
+
+    expect(instance.$meta().inject()).toBeDefined()
+    expect(instance.$meta().refresh()).toBeDefined()
+
+    const options = instance.$meta().getOptions()
+    expect(options).toBeDefined()
+    expect(options.keyName).toBe(defaultOptions.keyName)
+  })
+
+  test('component has _hasMetaInfo set to true', () => {
+    const Component = Vue.component('test-component', {
+      template: '<div>Test</div>',
+      [defaultOptions.keyName]: {
+        title: 'Hello World'
+      }
+    })
+
+    const { vm } = mount(Component, { localVue: Vue })
+    expect(vm._hasMetaInfo).toBe(true)
+  })
+
+  test('plugin sets package version', () => {
+    expect(VueMetaServerPlugin.version).toBe('test-version')
+  })
+
+  test('prints deprecation warning once when using _hasMetaInfo', () => {
+    const warn = jest.spyOn(console, 'warn').mockImplementation(() => {})
+
+    const Component = Vue.component('test-component', {
+      template: '<div>Test</div>',
+      [defaultOptions.keyName]: {
+        title: 'Hello World'
+      }
+    })
+
+    Vue.config.devtools = true
+    const { vm } = mount(Component, { localVue: Vue })
+
+    expect(vm._hasMetaInfo).toBe(true)
+    expect(warn).toHaveBeenCalledTimes(1)
+
+    expect(vm._hasMetaInfo).toBe(true)
+    expect(warn).toHaveBeenCalledTimes(1)
+    warn.mockRestore()
+  })
+
+  test('can use hasMetaInfo export', () => {
+    const warn = jest.spyOn(console, 'warn').mockImplementation(() => {})
+
+    const Component = Vue.component('test-component', {
+      template: '<div>Test</div>',
+      [defaultOptions.keyName]: {
+        title: 'Hello World'
+      }
+    })
+
+    const { vm } = mount(Component, { localVue: Vue })
+
+    expect(VueMetaServerPlugin.hasMetaInfo(vm)).toBe(true)
+    expect(warn).not.toHaveBeenCalled()
+
+    warn.mockRestore()
+  })
+})