Add browser tests (#696)

.travis.yml

@@ -21,5 +21,10 @@ addons:
       - ubuntu-toolchain-r-test
     packages:
       - g++-4.8
+      - xvfb
+install:
+  - export DISPLAY=':99.0'
+  - Xvfb :99 -screen 0 1024x768x24 > /dev/null 2>&1 &
+  - npm install
 script: npm run test
 # after_script: npm i -g codecov.io && cat ./coverage/lcov.info | codecov

index.js

@@ -138,11 +138,11 @@ Choo.prototype.start = function () {
   }
 
   this._setCache(this.state)
+  this._matchRoute()
   this._stores.forEach(function (initStore) {
     initStore(self.state)
   })
 
-  this._matchRoute()
   this._tree = this._prerender(this.state)
   assert.ok(this._tree, 'choo.start: no valid DOM node returned for location ' + this.state.href)
 

package.json

@@ -23,7 +23,9 @@
     "inspect": "browserify --full-paths index -p tinyify | discify --open",
     "prepublishOnly": "npm run build",
     "start": "bankai start example",
-    "test": "standard && npm run deps && node test.js"
+    "test": "standard && npm run deps && npm run test:node && npm run test:browser",
+    "test:node": "node test/node.js | tap-format-spec",
+    "test:browser": "browserify test/browser.js | tape-run | tap-format-spec"
   },
   "repository": "choojs/choo",
   "keywords": [
@@ -52,6 +54,7 @@
     "xtend": "^4.0.1"
   },
   "devDependencies": {
+    "@tap-format/spec": "^0.2.0",
     "@types/node": "^10.3.1",
     "browserify": "^16.2.2",
     "bundle-collapser": "^1.2.1",
@@ -62,6 +65,7 @@
     "spok": "^0.9.1",
     "standard": "^11.0.1",
     "tape": "^4.6.3",
+    "tape-run": "^5.0.0",
     "tinyify": "^2.2.0"
   }
 }

test/browser.js

@@ -0,0 +1,263 @@
+var tape = require('tape')
+var h = require('hyperscript')
+
+var html = require('../html')
+var raw = require('../html/raw')
+var choo = require('..')
+
+tape('should mount in the DOM', function (t) {
+  t.plan(1)
+  var app = choo()
+  var container = init('/', 'p')
+  app.route('/', function (state, emit) {
+    var strong = '<strong>Hello filthy planet</strong>'
+    window.requestAnimationFrame(function () {
+      var exp = '<p><strong>Hello filthy planet</strong></p>'
+      t.equal(container.outerHTML, exp, 'result was OK')
+    })
+    return html`
+      <p>${raw(strong)}</p>
+    `
+  })
+  app.mount(container)
+})
+
+tape('should render with hyperscript', function (t) {
+  t.plan(1)
+  var app = choo()
+  var container = init('/', 'p')
+  app.route('/', function (state, emit) {
+    window.requestAnimationFrame(function () {
+      var exp = '<p><strong>Hello filthy planet</strong></p>'
+      t.equal(container.outerHTML, exp, 'result was OK')
+    })
+    return h('p', h('strong', 'Hello filthy planet'))
+  })
+  app.mount(container)
+})
+
+tape('should expose a public API', function (t) {
+  var app = choo()
+
+  t.equal(typeof app.route, 'function', 'app.route prototype method exists')
+  t.equal(typeof app.toString, 'function', 'app.toString prototype method exists')
+  t.equal(typeof app.start, 'function', 'app.start prototype method exists')
+  t.equal(typeof app.mount, 'function', 'app.mount prototype method exists')
+  t.equal(typeof app.emitter, 'object', 'app.emitter prototype method exists')
+
+  t.equal(typeof app.emit, 'function', 'app.emit instance method exists')
+  t.equal(typeof app.router, 'object', 'app.router instance object exists')
+  t.equal(typeof app.state, 'object', 'app.state instance object exists')
+
+  t.end()
+})
+
+tape('should enable history and hash by defaut', function (t) {
+  var app = choo()
+  t.true(app._historyEnabled, 'history enabled')
+  t.true(app._hrefEnabled, 'href enabled')
+  t.end()
+})
+
+tape('router should pass state and emit to view', function (t) {
+  t.plan(2)
+  var app = choo()
+  var container = init()
+  app.route('/', function (state, emit) {
+    t.equal(typeof state, 'object', 'state is an object')
+    t.equal(typeof emit, 'function', 'emit is a function')
+    return html`<div></div>`
+  })
+  app.mount(container)
+})
+
+tape('router should support a default route', function (t) {
+  t.plan(1)
+  var app = choo()
+  var container = init('/random')
+  app.route('*', function (state, emit) {
+    t.pass()
+    return html`<div></div>`
+  })
+  app.mount(container)
+})
+
+tape('router should treat hashes as slashes by default', function (t) {
+  t.plan(1)
+  var app = choo()
+  var container = init('/account#security')
+  app.route('/account/security', function (state, emit) {
+    t.pass()
+    return html`<div></div>`
+  })
+  app.mount(container)
+})
+
+tape('router should ignore hashes if hash is disabled', function (t) {
+  t.plan(1)
+  var app = choo({ hash: false })
+  var container = init('/account#security')
+  app.route('/account', function (state, emit) {
+    t.pass()
+    return html`<div></div>`
+  })
+  app.mount(container)
+})
+
+tape('cache should default to 100 instances', function (t) {
+  t.plan(1)
+  var app = choo()
+  var container = init()
+  app.route('/', function (state, emit) {
+    for (var i = 0; i <= 100; i++) state.cache(Component, i)
+    state.cache(Component, 0)
+    return html`<div></div>`
+
+    function Component (id) {
+      if (id < i) t.pass('oldest instance was pruned when exceeding 100')
+    }
+  })
+  app.mount(container)
+})
+
+tape('cache option should override number of max instances', function (t) {
+  t.plan(1)
+  var app = choo({ cache: 1 })
+  var container = init()
+  app.route('/', function (state, emit) {
+    var instances = 0
+    state.cache(Component, instances)
+    state.cache(Component, instances)
+    state.cache(Component, 0)
+    return html`<div></div>`
+
+    function Component (id) {
+      if (id < instances) t.pass('oldest instance was pruned when exceeding 1')
+      instances++
+    }
+  })
+  app.mount(container)
+})
+
+tape('cache option should override default LRU cache', function (t) {
+  t.plan(2)
+  var cache = {
+    get (Component, id) {
+      t.pass('called get')
+    },
+    set (Component, id) {
+      t.pass('called set')
+    }
+  }
+  var app = choo({ cache: cache })
+  var container = init()
+  app.route('/', function (state, emit) {
+    state.cache(Component, 'foo')
+    return html`<div></div>`
+  })
+  app.mount(container)
+
+  function Component () {}
+})
+
+// built-in state
+
+tape('state should include events', function (t) {
+  t.plan(2)
+  var app = choo()
+  var container = init()
+  app.route('/', function (state, emit) {
+    t.ok(state.hasOwnProperty('events'), 'state has event property')
+    t.ok(Object.keys(state.events).length > 0, 'events object has keys')
+    return html`<div></div>`
+  })
+  app.mount(container)
+})
+
+tape('state should include location on render', function (t) {
+  t.plan(6)
+  var app = choo()
+  var container = init('/foo/bar/file.txt?bin=baz')
+  app.route('/:first/:second/*', function (state, emit) {
+    var params = { first: 'foo', second: 'bar', wildcard: 'file.txt' }
+    t.equal(state.href, '/foo/bar/file.txt', 'state has href')
+    t.equal(state.route, ':first/:second/*', 'state has route')
+    t.ok(state.hasOwnProperty('params'), 'state has params')
+    t.deepEqual(state.params, params, 'params match')
+    t.ok(state.hasOwnProperty('query'), 'state has query')
+    t.deepEqual(state.query, { bin: 'baz' }, 'query match')
+    return html`<div></div>`
+  })
+  app.mount(container)
+})
+
+tape('state should include location on store init', function (t) {
+  t.plan(6)
+  var app = choo()
+  var container = init('/foo/bar/file.txt?bin=baz')
+  app.use(store)
+  app.route('/:first/:second/*', function (state, emit) {
+    return html`<div></div>`
+  })
+  app.mount(container)
+
+  function store (state, emit) {
+    var params = { first: 'foo', second: 'bar', wildcard: 'file.txt' }
+    t.equal(state.href, '/foo/bar/file.txt', 'state has href')
+    t.equal(state.route, ':first/:second/*', 'state has route')
+    t.ok(state.hasOwnProperty('params'), 'state has params')
+    t.deepEqual(state.params, params, 'params match')
+    t.ok(state.hasOwnProperty('query'), 'state has query')
+    t.deepEqual(state.query, { bin: 'baz' }, 'query match')
+  }
+})
+
+tape('state should include title', function (t) {
+  t.plan(3)
+  document.title = 'foo'
+  var app = choo()
+  var container = init()
+  t.equal(app.state.title, 'foo', 'title is match')
+  app.use(function (state, emitter) {
+    emitter.on(state.events.DOMTITLECHANGE, function (title) {
+      t.equal(state.title, 'bar', 'title is changed in state')
+      t.equal(document.title, 'bar', 'title is changed in document')
+    })
+  })
+  app.route('/', function (state, emit) {
+    emit(state.events.DOMTITLECHANGE, 'bar')
+    return html`<div></div>`
+  })
+  app.mount(container)
+})
+
+tape('state should include cache', function (t) {
+  t.plan(6)
+  var app = choo()
+  var container = init()
+  app.route('/', function (state, emit) {
+    t.equal(typeof state.cache, 'function', 'state has cache method')
+    var cached = state.cache(Component, 'foo', 'arg')
+    t.equal(cached, state.cache(Component, 'foo'), 'consecutive calls return same instance')
+    return html`<div></div>`
+  })
+  app.mount(container)
+
+  function Component (id, state, emit, arg) {
+    t.equal(id, 'foo', 'id was prefixed to constructor args')
+    t.equal(typeof state, 'object', 'state was prefixed to constructor args')
+    t.equal(typeof emit, 'function', 'emit was prefixed to constructor args')
+    t.equal(arg, 'arg', 'constructor args were forwarded')
+  }
+})
+
+// create application container and set location
+// (str?, str?) -> Element
+function init (location, type) {
+  location = location ? location.split('#') : ['/', '']
+  window.history.replaceState({}, document.title, location[0])
+  window.location.hash = location[1] || ''
+  var container = document.createElement(type || 'div')
+  document.body.appendChild(container)
+  return container
+}