Fin P5Ch6 - Snapshots

package-lock.json

@@ -4,6 +4,12 @@
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@@ -4626,6 +4844,15 @@
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+    },
     "object-keys": {
       "version": "1.0.11",
       "resolved": "https://registry.npmjs.org/object-keys/-/object-keys-1.0.11.tgz",
       "integrity": "sha1-xUYBd4rVYPEULODgG8yotW0TQm0="
     },
+    "object.assign": {
+      "version": "4.0.4",
+      "resolved": "https://registry.npmjs.org/object.assign/-/object.assign-4.0.4.tgz",
+      "integrity": "sha1-scnMBE7xuf5jYG/BQau7MuFHMMw=",
+      "dev": true,
+      "requires": {
+        "define-properties": "1.1.2",
+        "function-bind": "1.1.1",
+        "object-keys": "1.0.11"
+      }
+    },
+    "object.entries": {
+      "version": "1.0.4",
+      "resolved": "https://registry.npmjs.org/object.entries/-/object.entries-1.0.4.tgz",
+      "integrity": "sha1-G/mk3SKI9bM/Opk9JXZh8F0WGl8=",
+      "dev": true,
+      "requires": {
+        "define-properties": "1.1.2",
+        "es-abstract": "1.10.0",
+        "function-bind": "1.1.1",
+        "has": "1.0.1"
+      }
+    },
     "object.omit": {
       "version": "2.0.1",
       "resolved": "https://registry.npmjs.org/object.omit/-/object.omit-2.0.1.tgz",
@@ -6392,6 +6740,18 @@
         "is-extendable": "0.1.1"
       }
     },
+    "object.values": {
+      "version": "1.0.4",
+      "resolved": "https://registry.npmjs.org/object.values/-/object.values-1.0.4.tgz",
+      "integrity": "sha1-5STaCbT2b/Bd9FdUbscqyZ8TBpo=",
+      "dev": true,
+      "requires": {
+        "define-properties": "1.1.2",
+        "es-abstract": "1.10.0",
+        "function-bind": "1.1.1",
+        "has": "1.0.1"
+      }
+    },
     "obuf": {
       "version": "1.1.1",
       "resolved": "https://registry.npmjs.org/obuf/-/obuf-1.1.1.tgz",
@@ -8038,6 +8398,22 @@
         "performance-now": "2.1.0"
       }
     },
+    "railroad-diagrams": {
+      "version": "1.0.0",
+      "resolved": "https://registry.npmjs.org/railroad-diagrams/-/railroad-diagrams-1.0.0.tgz",
+      "integrity": "sha1-635iZ1SN3t+4mcG5Dlc3RVnN234=",
+      "dev": true
+    },
+    "randexp": {
+      "version": "0.4.6",
+      "resolved": "https://registry.npmjs.org/randexp/-/randexp-0.4.6.tgz",
+      "integrity": "sha512-80WNmd9DA0tmZrw9qQa62GPPWfuXJknrmVmLcxvq4uZBdYqb1wYoKTmnlGUchvVWe0XiLupYkBoXVOxz3C8DYQ==",
+      "dev": true,
+      "requires": {
+        "discontinuous-range": "1.0.0",
+        "ret": "0.1.15"
+      }
+    },
     "randomatic": {
       "version": "1.1.7",
       "resolved": "https://registry.npmjs.org/randomatic/-/randomatic-1.1.7.tgz",
@@ -8458,6 +8834,17 @@
         }
       }
     },
+    "react-test-renderer": {
+      "version": "16.2.0",
+      "resolved": "https://registry.npmjs.org/react-test-renderer/-/react-test-renderer-16.2.0.tgz",
+      "integrity": "sha512-Kd4gJFtpNziR9ElOE/C23LeflKLZPRpNQYWP3nQBY43SJ5a+xyEGSeMrm2zxNKXcnCbBS/q1UpD9gqd5Dv+rew==",
+      "dev": true,
+      "requires": {
+        "fbjs": "0.8.16",
+        "object-assign": "4.1.1",
+        "prop-types": "15.6.0"
+      }
+    },
     "read-all-stream": {
       "version": "3.1.0",
       "resolved": "https://registry.npmjs.org/read-all-stream/-/read-all-stream-3.1.0.tgz",
@@ -8815,6 +9202,12 @@
         "signal-exit": "3.0.2"
       }
     },
+    "ret": {
+      "version": "0.1.15",
+      "resolved": "https://registry.npmjs.org/ret/-/ret-0.1.15.tgz",
+      "integrity": "sha512-TTlYpa+OL+vMMNG24xSlQGEJ3B/RzEfUlLct7b5G/ytav+wPrplCpVMFuwzXbkecJrb6IYo1iFb0S9v37754mg==",
+      "dev": true
+    },
     "right-align": {
       "version": "0.1.3",
       "resolved": "https://registry.npmjs.org/right-align/-/right-align-0.1.3.tgz",
@@ -8840,6 +9233,16 @@
         "inherits": "2.0.3"
       }
     },
+    "rst-selector-parser": {
+      "version": "2.2.3",
+      "resolved": "https://registry.npmjs.org/rst-selector-parser/-/rst-selector-parser-2.2.3.tgz",
+      "integrity": "sha1-gbIw6i/MYGbInjRy3nlChdmwPZE=",
+      "dev": true,
+      "requires": {
+        "lodash.flattendeep": "4.4.0",
+        "nearley": "2.11.0"
+      }
+    },
     "run-async": {
       "version": "2.3.0",
       "resolved": "https://registry.npmjs.org/run-async/-/run-async-2.3.0.tgz",
@@ -8866,6 +9269,12 @@
       "resolved": "https://registry.npmjs.org/safe-buffer/-/safe-buffer-5.1.1.tgz",
       "integrity": "sha512-kKvNJn6Mm93gAczWVJg7wH+wGYWNrDHdWvpUmHyEsgCtIwwo3bqPtV4tR5tuPaUhTOo/kvhVwd8XwwOllGYkbg=="
     },
+    "samsam": {
+      "version": "1.3.0",
+      "resolved": "https://registry.npmjs.org/samsam/-/samsam-1.3.0.tgz",
+      "integrity": "sha512-1HwIYD/8UlOtFS3QO3w7ey+SdSDFE4HRNLZoZRYVQefrOY3l17epswImeB1ijgJFQJodIaHcwkp3r/myBjFVbg==",
+      "dev": true
+    },
     "sane": {
       "version": "1.6.0",
       "resolved": "https://registry.npmjs.org/sane/-/sane-1.6.0.tgz",
@@ -9062,6 +9471,27 @@
       "resolved": "https://registry.npmjs.org/signal-exit/-/signal-exit-3.0.2.tgz",
       "integrity": "sha1-tf3AjxKH6hF4Yo5BXiUTK3NkbG0="
     },
+    "sinon": {
+      "version": "4.1.3",
+      "resolved": "https://registry.npmjs.org/sinon/-/sinon-4.1.3.tgz",
+      "integrity": "sha512-c7u0ZuvBRX1eXuB4jN3BRCAOGiUTlM8SE3TxbJHrNiHUKL7wonujMOB6Fi1gQc00U91IscFORQHDga/eccqpbw==",
+      "dev": true,
+      "requires": {
+        "diff": "3.4.0",
+        "formatio": "1.2.0",
+        "lodash.get": "4.4.2",
+        "lolex": "2.3.1",
+        "nise": "1.2.0",
+        "supports-color": "4.5.0",
+        "type-detect": "4.0.5"
+      }
+    },
+    "sinon-chai": {
+      "version": "2.14.0",
+      "resolved": "https://registry.npmjs.org/sinon-chai/-/sinon-chai-2.14.0.tgz",
+      "integrity": "sha512-9stIF1utB0ywNHNT7RgiXbdmen8QDCRsrTjw+G9TgKt1Yexjiv8TOWZ6WHsTPz57Yky3DIswZvEqX8fpuHNDtQ==",
+      "dev": true
+    },
     "slash": {
       "version": "1.0.0",
       "resolved": "https://registry.npmjs.org/slash/-/slash-1.0.0.tgz",
@@ -9447,6 +9877,12 @@
         "require-main-filename": "1.0.1"
       }
     },
+    "text-encoding": {
+      "version": "0.6.4",
+      "resolved": "https://registry.npmjs.org/text-encoding/-/text-encoding-0.6.4.tgz",
+      "integrity": "sha1-45mpgiV6J22uQou5KEXLcb3CbRk=",
+      "dev": true
+    },
     "text-table": {
       "version": "0.2.0",
       "resolved": "https://registry.npmjs.org/text-table/-/text-table-0.2.0.tgz",
@@ -9646,6 +10082,12 @@
         }
       }
     },
+    "underscore": {
+      "version": "1.4.4",
+      "resolved": "https://registry.npmjs.org/underscore/-/underscore-1.4.4.tgz",
+      "integrity": "sha1-YaajIBBiKvoHljvzJSA88SI51gQ=",
+      "dev": true
+    },
     "uniq": {
       "version": "1.0.1",
       "resolved": "https://registry.npmjs.org/uniq/-/uniq-1.0.1.tgz",

package.json

@@ -12,17 +12,25 @@
   "scripts": {
     "start": "react-scripts start",
     "build": "react-scripts build",
-    "test": "react-scripts test --env=jsdom",
+    "test": "react-scripts test",
     "eject": "react-scripts eject"
   },
   "devDependencies": {
     "chai": "^4.1.2",
+    "chai-enzyme": "^1.0.0-beta.0",
     "chai-jest-diff": "^1.0.1",
+    "chai-jest-snapshot": "^2.0.0",
     "dirty-chai": "^2.0.1",
+    "enzyme": "^3.2.0",
+    "enzyme-adapter-react-16": "^1.1.0",
+    "enzyme-to-json": "^3.2.2",
     "eslint-config-prettier": "^2.6.0",
     "eslint-config-react-app": "^2.0.1",
     "eslint-plugin-prettier": "^2.3.1",
-    "prettier": "^1.7.4"
+    "prettier": "^1.7.4",
+    "react-test-renderer": "^16.2.0",
+    "sinon": "^4.1.3",
+    "sinon-chai": "^2.14.0"
   },
   "prettier": {
     "semi": false,

src/App.js

@@ -9,7 +9,7 @@ import HallOfFame, { FAKE_HOF } from './HallOfFame'
 import HighScoreInput from './HighScoreInput'
 
 const SIDE = 6
-const SYMBOLS = '😀🎉💖🎩🐶🐱🦄🐬🌍🌛🌞💫🍎🍌🍓🍐🍟🍿'
+export const SYMBOLS = '😀🎉💖🎩🐶🐱🦄🐬🌍🌛🌞💫🍎🍌🍓🍐🍟🍿'
 const VISUAL_PAUSE_MSECS = 750
 
 class App extends Component {

src/App.spec.js

@@ -1,9 +1,37 @@
+import { expect } from 'chai'
 import React from 'react'
-import ReactDOM from 'react-dom'
+import { shallow } from 'enzyme'
+import sinon from 'sinon'
 
-import App from './App'
+import App, { SYMBOLS } from './App'
+import GuessCount from './GuessCount'
 
-it('renders without crashing', () => {
-  const div = document.createElement('div')
-  ReactDOM.render(<App />, div)
+describe('<App/>', () => {
+  it('renders without crashing', () => {
+    const wrapper = shallow(<App />)
+  })
+
+  it('contains a zero-guess counter', () => {
+    const wrapper = shallow(<App />)
+
+    expect(wrapper).to.contain(<GuessCount guesses={0} />)
+  })
+
+  it('has 36 cards', () => {
+    const wrapper = shallow(<App />)
+    expect(wrapper.find('Card')).to.have.length(36)
+  })
+
+  it('should match its reference snapshot', () => {
+    const mock = sinon
+      .stub(App.prototype, 'generateCards')
+      .returns([...SYMBOLS.repeat(2)])
+    try {
+      const wrapper = shallow(<App />)
+
+      expect(wrapper).to.matchSnapshot()
+    } finally {
+      mock.restore()
+    }
+  })
 })

src/Card.spec.js

@@ -0,0 +1,27 @@
+import { expect } from 'chai'
+import React from 'react'
+import { shallow } from 'enzyme'
+import sinon from 'sinon'
+
+import Card from './Card'
+
+describe('<Card/>', () => {
+  it('should trigger its `onClick` prop when clicked', () => {
+    const onClick = sinon.spy()
+    const wrapper = shallow(
+      <Card card="😁" feedback="hidden" index={0} onClick={onClick} />
+    )
+
+    wrapper.simulate('click')
+    expect(onClick).to.have.been.calledWith(0)
+  })
+
+  it('should match its reference snapshot', () => {
+    const onClick = sinon.spy()
+    const wrapper = shallow(
+      <Card card="😁" feedback="hidden" index={0} onClick={onClick} />
+    )
+
+    expect(wrapper).to.matchSnapshot()
+  })
+})

src/__snapshots__/App.spec.js.snap

@@ -0,0 +1,263 @@
+// Jest Snapshot v1, https://goo.gl/fbAQLP
+
+exports[`<App/> should match its reference snapshot 1`] = `
+<div
+  className="memory"
+>
+  <GuessCount
+    guesses={0}
+  />
+  <Card
+    card="😀"
+    feedback="hidden"
+    index={0}
+    key="0"
+    onClick={[Function]}
+  />
+  <Card
+    card="🎉"
+    feedback="hidden"
+    index={1}
+    key="1"
+    onClick={[Function]}
+  />
+  <Card
+    card="💖"
+    feedback="hidden"
+    index={2}
+    key="2"
+    onClick={[Function]}
+  />
+  <Card
+    card="🎩"
+    feedback="hidden"
+    index={3}
+    key="3"
+    onClick={[Function]}
+  />
+  <Card
+    card="🐶"
+    feedback="hidden"
+    index={4}
+    key="4"
+    onClick={[Function]}
+  />
+  <Card
+    card="🐱"
+    feedback="hidden"
+    index={5}
+    key="5"
+    onClick={[Function]}
+  />
+  <Card
+    card="🦄"
+    feedback="hidden"
+    index={6}
+    key="6"
+    onClick={[Function]}
+  />
+  <Card
+    card="🐬"
+    feedback="hidden"
+    index={7}
+    key="7"
+    onClick={[Function]}
+  />
+  <Card
+    card="🌍"
+    feedback="hidden"
+    index={8}
+    key="8"
+    onClick={[Function]}
+  />
+  <Card
+    card="🌛"
+    feedback="hidden"
+    index={9}
+    key="9"
+    onClick={[Function]}
+  />
+  <Card
+    card="🌞"
+    feedback="hidden"
+    index={10}
+    key="10"
+    onClick={[Function]}
+  />
+  <Card
+    card="💫"
+    feedback="hidden"
+    index={11}
+    key="11"
+    onClick={[Function]}
+  />
+  <Card
+    card="🍎"
+    feedback="hidden"
+    index={12}
+    key="12"
+    onClick={[Function]}
+  />
+  <Card
+    card="🍌"
+    feedback="hidden"
+    index={13}
+    key="13"
+    onClick={[Function]}
+  />
+  <Card
+    card="🍓"
+    feedback="hidden"
+    index={14}
+    key="14"
+    onClick={[Function]}
+  />
+  <Card
+    card="🍐"
+    feedback="hidden"
+    index={15}
+    key="15"
+    onClick={[Function]}
+  />
+  <Card
+    card="🍟"
+    feedback="hidden"
+    index={16}
+    key="16"
+    onClick={[Function]}
+  />
+  <Card
+    card="🍿"
+    feedback="hidden"
+    index={17}
+    key="17"
+    onClick={[Function]}
+  />
+  <Card
+    card="😀"
+    feedback="hidden"
+    index={18}
+    key="18"
+    onClick={[Function]}
+  />
+  <Card
+    card="🎉"
+    feedback="hidden"
+    index={19}
+    key="19"
+    onClick={[Function]}
+  />
+  <Card
+    card="💖"
+    feedback="hidden"
+    index={20}
+    key="20"
+    onClick={[Function]}
+  />
+  <Card
+    card="🎩"
+    feedback="hidden"
+    index={21}
+    key="21"
+    onClick={[Function]}
+  />
+  <Card
+    card="🐶"
+    feedback="hidden"
+    index={22}
+    key="22"
+    onClick={[Function]}
+  />
+  <Card
+    card="🐱"
+    feedback="hidden"
+    index={23}
+    key="23"
+    onClick={[Function]}
+  />
+  <Card
+    card="🦄"
+    feedback="hidden"
+    index={24}
+    key="24"
+    onClick={[Function]}
+  />
+  <Card
+    card="🐬"
+    feedback="hidden"
+    index={25}
+    key="25"
+    onClick={[Function]}
+  />
+  <Card
+    card="🌍"
+    feedback="hidden"
+    index={26}
+    key="26"
+    onClick={[Function]}
+  />
+  <Card
+    card="🌛"
+    feedback="hidden"
+    index={27}
+    key="27"
+    onClick={[Function]}
+  />
+  <Card
+    card="🌞"
+    feedback="hidden"
+    index={28}
+    key="28"
+    onClick={[Function]}
+  />
+  <Card
+    card="💫"
+    feedback="hidden"
+    index={29}
+    key="29"
+    onClick={[Function]}
+  />
+  <Card
+    card="🍎"
+    feedback="hidden"
+    index={30}
+    key="30"
+    onClick={[Function]}
+  />
+  <Card
+    card="🍌"
+    feedback="hidden"
+    index={31}
+    key="31"
+    onClick={[Function]}
+  />
+  <Card
+    card="🍓"
+    feedback="hidden"
+    index={32}
+    key="32"
+    onClick={[Function]}
+  />
+  <Card
+    card="🍐"
+    feedback="hidden"
+    index={33}
+    key="33"
+    onClick={[Function]}
+  />
+  <Card
+    card="🍟"
+    feedback="hidden"
+    index={34}
+    key="34"
+    onClick={[Function]}
+  />
+  <Card
+    card="🍿"
+    feedback="hidden"
+    index={35}
+    key="35"
+    onClick={[Function]}
+  />
+</div>
+`;

src/__snapshots__/Card.spec.js.snap

@@ -0,0 +1,14 @@
+// Jest Snapshot v1, https://goo.gl/fbAQLP
+
+exports[`<Card/> should match its reference snapshot 1`] = `
+<div
+  className="card hidden"
+  onClick={[Function]}
+>
+  <span
+    className="symbol"
+  >
+    ❓
+  </span>
+</div>
+`;

src/setupTests.js

@@ -1,5 +1,20 @@
+import Adapter from 'enzyme-adapter-react-16'
 import chai from 'chai'
-import dirtyChai from 'dirty-chai'
+import { configure as configureEnzyme } from 'enzyme'
+import chaiJestSnapshot from 'chai-jest-snapshot'
+import createChaiEnzyme from 'chai-enzyme'
 import createChaiJestDiff from 'chai-jest-diff'
+import dirtyChai from 'dirty-chai'
+import enzymeToJSON from 'enzyme-to-json/serializer'
+import sinonChai from 'sinon-chai'
 
-chai.use(dirtyChai).use(createChaiJestDiff())
+chai
+  .use(dirtyChai)
+  .use(createChaiJestDiff())
+  .use(chaiJestSnapshot)
+  .use(createChaiEnzyme())
+  .use(sinonChai)
+
+expect.addSnapshotSerializer(enzymeToJSON)
+
+configureEnzyme({ adapter: new Adapter() })