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Copy pathrunner.js
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191 lines (166 loc) · 5.81 KB
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'use strict';
var EventEmitter = require('events').EventEmitter,
q = require('q'),
inherit = require('inherit'),
promiseUtils = require('./promise-util'),
StateError = require('./errors/state-error'),
BrowserLauncher = require('./browser/launcher'),
CaptureSession = require('../lib/capture-session'),
Coverage = require('./coverage'),
Stats = require('./stats');
module.exports = inherit(EventEmitter, {
__constructor: function(config, browserLauncher) {
this.config = config;
this._cancelled = false;
this.browserLauncher = browserLauncher || new BrowserLauncher(config);
this.coverage = new Coverage(config);
},
setGrepPattern: function(pattern) {
this._grepPattern = pattern;
},
run: function(rootSuite) {
var _this = this;
this._stats = new Stats();
return q.fcall(function() {
_this.emit('begin', {
config: _this.config,
totalStates: rootSuite.deepStatesCount,
browserIds: Object.keys(_this.config.browsers)
});
}).then(function() {
return _this._prepare();
})
.then(function() {
return _this._runBrowsers(rootSuite.children);
})
.then(function() {
if (_this.config.coverage) {
return _this.coverage.processStats();
}
})
.then(function() {
_this.emit('end');
return _this._stats.data;
});
},
_prepare: function() {
},
_runBrowsers: function(suites) {
var _this = this;
return q.all(Object.keys(this.config.browsers).map(function(browserId) {
return _this.browserLauncher.launch(browserId)
.then(function(browser) {
_this.emit('startBrowser', {browserId: browser.id});
return _this._runSuitesInBrowser(suites, browser)
.fin(function() {
_this.emit('stopBrowser', {browserId: browser.id});
return _this.browserLauncher.stop(browser);
});
})
.fail(function(e) {
_this._cancelled = true;
return q.reject(e);
});
}));
},
_runSuitesInBrowser: function(suites, browser) {
var _this = this;
return promiseUtils.seqMap(suites, function(suite) {
return _this._runSuiteInBrowser(suite, browser);
});
},
_runSuiteInBrowser: function(suite, browser) {
if (this._cancelled) {
return q.resolve();
}
var _this = this,
eventData = {
browserId: browser.id,
suiteName: suite.name,
suiteId: suite.id
};
this.emit('beginSuite', eventData);
return this._runSuiteStateIfMatches(suite, browser)
.then(function() {
return _this._runSuitesInBrowser(suite.children, browser);
})
.then(function() {
_this.emit('endSuite', eventData);
});
},
_runSuiteStateIfMatches: function(suite, browser) {
if (this._grepPattern && !this._grepPattern.test(suite.fullName)) {
return q.resolve();
}
return this._runSuiteStates(suite, browser);
},
_runSuiteStates: function(suite, browser) {
if (!suite.hasStates) {
return q.resolve();
}
var _this = this,
session = new CaptureSession(browser);
return browser.open(this.config.getAbsoluteUrl(suite.url))
.then(function() {
return session.runHook(suite.beforeHook);
})
.then(function() {
return promiseUtils.seqMap(suite.states, function(state) {
return _this._runStateInSession(state, session);
});
})
.then(function() {
return session.runHook(suite.afterHook);
});
},
_runStateInSession: function(state, session) {
if (this._cancelled) {
return q.resolve();
}
var _this = this,
suite = state.suite,
eventData = {
browserId: session.browser.id,
suiteName: state.suite.name,
suiteId: state.suite.id,
stateName: state.name
};
_this._stats.add('total');
if (state.shouldSkip(session.browser)) {
_this.emit('skipState', eventData);
this._stats.add('skipped');
return q();
}
_this.emit('beginState', eventData);
return session.capture(state, {coverage: this.config.coverage})
.then(function(data) {
if (_this.config.coverage) {
_this.coverage.addStats(data.coverage);
}
return q(_this._processCapture({
suite: suite,
state: state,
browser: session.browser,
image: data.image,
canHaveCaret: data.canHaveCaret
}));
})
.fail(function(e) {
if (e instanceof StateError) {
e.suiteId = state.suite.id;
e.suiteName = state.suite.name;
e.stateName = state.name;
e.browserId = session.browserId;
_this._stats.add('errored');
_this.emit('error', e);
} else {
return q.reject(e);
}
})
.fin(function() {
_this.emit('endState', eventData);
});
},
_processCapture: function() {
}
});