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Copy pathrunner.js
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125 lines (109 loc) · 4.02 KB
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'use strict';
var EventEmitter = require('events').EventEmitter,
q = require('q'),
inherit = require('inherit'),
promiseUtils = require('./promise-util'),
GeminiError = require('./errors/gemini-error'),
StateError = require('./errors/state-error'),
BrowserLauncher = require('./browser/launcher'),
exec = q.denodeify(require('child_process').exec);
module.exports = inherit(EventEmitter, {
__constructor: function(config, browserLauncher) {
this.config = config;
this.browserLauncher = browserLauncher || new BrowserLauncher(config);
},
run: function(suites) {
var _this = this;
return this._checkGM()
.then(function() {
_this.emit('begin');
return q(_this._prepare());
})
.then(function() {
return _this._runSuites(suites);
})
.then(function() {
_this.emit('end');
});
},
_runSuites: function(suites) {
return promiseUtils.seqMap(suites, this._runSuite.bind(this));
},
_prepare: function() {
},
_checkGM: function() {
return exec('gm -version')
.then(function() {
return true;
})
.fail(function() {
return q.reject(new GeminiError(
'Unable to find required package: GraphicsMagick',
'Make sure that GraphicsMagick is installed and availiable in your PATH.\n' +
'Additonal info and installation instructions:\nhttp://www.graphicsmagick.org/'
));
});
},
_runSuite: function(suite) {
var _this = this;
this.emit('beginSuite', suite.name);
return this._runSuiteStates(suite)
.then(function() {
return _this._runSuites(suite.children);
})
.then(function() {
_this.emit('endSuite', suite.name);
});
},
_runSuiteStates: function(suite) {
var _this = this;
return q.fcall(function() {
if (!suite.hasStates) {
return;
}
return q.all(_this.config.browsers.map(function(browserName) {
var browser = _this.browserLauncher.launch(browserName);
return _this._runSuiteInBrowser(suite, browser)
.fin(function() {
return _this.browserLauncher.stop(browser);
});
}));
});
},
_runSuiteInBrowser: function(suite, browser) {
var _this = this;
return browser.open(this.config.getAbsoluteUrl(suite.url))
.then(function() {
return browser.buildElementsMap(
suite.elementsSelectors,
suite.dynamicElementsSelectors
);
})
.then(function(elements) {
return promiseUtils.seqMap(suite.states, function(state) {
_this.emit('beginState', suite.name, state.name, browser.fullName);
return browser.captureState(state, elements)
.then(function(image) {
return q(_this._processCapture({
suite: suite,
state: state,
browser: browser,
image: image
}));
})
.fail(function(e) {
if (e instanceof StateError) {
_this.emit('error', e);
} else {
return q.reject(e);
}
})
.fin(function() {
_this.emit('endState', suite.name, state.name, browser.fullName);
});
});
});
},
_processCapture: function() {
}
});