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195 lines (159 loc) · 6.09 KB
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'use strict';
var Q = require('q'),
qDebugMode = require('q-debug-mode'),
QEmitter = require('qemitter'),
debug = require('debug'),
util = require('util'),
_ = require('lodash'),
chalk = require('chalk'),
SuiteRunner = require('./runner'),
Config = require('./config'),
readTests = require('./test-reader'),
SuiteCollection = require('./suite-collection'),
RunnnerStats = require('./stats'),
RunnerEvents = require('./constants/runner-events'),
GeminiError = require('./errors/gemini-error'),
DEFAULT_CFG_NAME = '.gemini.yml';
// Hack for node@0.10 and lower
// Remove restriction for maximum open concurrent sockets
require('http').globalAgent.maxSockets = Infinity;
function Gemini(config, allowOverrides) {
QEmitter.call(this);
config = config || DEFAULT_CFG_NAME;
this.config = new Config(config, allowOverrides);
setupLog(this.config.system.debug);
var _this = this;
require('./plugins').load(_this, this.config);
function executeRunner(runnerInstance, paths, options) {
if (!options) {
//if there are only two arguments, they are
//(runnerInstance, options) and paths are
//the default.
options = paths;
paths = undefined;
}
options = options || {};
options.reporters = options.reporters || [];
var envBrowsers = process.env.GEMINI_BROWSERS? process.env.GEMINI_BROWSERS.replace(/\s/g, '').split(',') : null;
options.browsers = options.browsers || envBrowsers;
if (options.browsers) {
var browsersFromConfig = _this.browserIds,
validBrowsers = _.intersection(options.browsers, browsersFromConfig),
unknownBrowsers = _.difference(options.browsers, browsersFromConfig);
if (unknownBrowsers.length) {
console.warn(util.format(
'%s Unknown browsers id: %s. Use one of the browser ids specified in config file: %s',
chalk.yellow('WARNING:'), unknownBrowsers.join(', '), browsersFromConfig.join(', ')
));
}
runnerInstance.setTestBrowsers(validBrowsers);
}
return getTests_(paths, options.grep)
.then(function(suiteCollection) {
return _this.emitAndWait(RunnerEvents.START_RUNNER, runnerInstance)
.thenResolve(suiteCollection);
})
.then(function(suiteCollection) {
var suites = suiteCollection.allSuites();
options.reporters.forEach(_.partial(applyReporter, runnerInstance));
var stats = new RunnnerStats(runnerInstance);
return runnerInstance.run(suites)
.thenResolve(stats.get());
})
.then(notifyEndRunner, function(e) {
return notifyEndRunner().thenReject(e);
});
function getTests_(source, grep) {
return source instanceof SuiteCollection
? Q.resolve(source)
: _this.readTests(source, grep);
}
function notifyEndRunner(data) {
return _this.emitAndWait(RunnerEvents.END_RUNNER, runnerInstance, data).thenResolve(data);
}
}
this.readTests = function(paths, grep) {
function applyGrep_(grep, suite) {
if (!suite.hasStates) {
_.clone(suite.children).forEach(function(child) {
applyGrep_(grep, child, suite);
});
} else {
if (!grep.test(suite.fullName)) {
suite.parent.removeChild(suite);
}
}
if (!suite.hasStates && !suite.children.length && suite.parent) {
suite.parent.removeChild(suite);
}
}
return readTests(paths, this.config)
.then(function(rootSuite) {
if (grep) {
applyGrep_(grep, rootSuite);
}
return new SuiteCollection(rootSuite.children);
});
};
this.gather = util.deprecate(function(paths, options) {
return executeRunner(
new SuiteRunner.createScreenShooter(this.config),
paths,
options);
}, 'gemini.gather' + chalk.red(' is deprecated.\n') +
'Use ' + chalk.green('gemini.update') + ' instead.'
);
this.update = function(paths, options) {
return executeRunner(
new SuiteRunner.createScreenUpdater(this.config, options),
paths,
options);
};
this.test = function(paths, options) {
return executeRunner(
new SuiteRunner.createTester(this.config, {tempDir: options.tempDir}),
paths,
options
);
};
this.getScreenshotPath = function(suite, stateName, browserId) {
return this.config.forBrowser(browserId).getScreenshotPath(suite, stateName);
};
this.getBrowserCapabilites = function(browserId) {
return this.config.forBrowser(browserId).desiredCapabilities;
};
this.SuiteCollection = SuiteCollection;
Object.defineProperty(this, 'browserIds', {
enumerable: true,
get: function() {
return this.config.getBrowserIds();
}
});
}
// Gemini needs to inherit from QEmitter rather then
// EventEmmiter because it needs to allow `startRunner`
// event handler delay the execution of tests
util.inherits(Gemini, QEmitter);
function applyReporter(runner, reporter) {
if (typeof reporter === 'string') {
try {
reporter = require('./reporters/' + reporter);
} catch (e) {
if (e.code === 'MODULE_NOT_FOUND') {
throw new GeminiError('No such reporter: ' + reporter);
}
throw e;
}
}
if (typeof reporter !== 'function') {
throw new TypeError('Reporter must be a string or a function');
}
reporter(runner);
}
function setupLog(isDebug) {
if (isDebug) {
qDebugMode(Q);
debug.enable('gemini:*');
}
}
module.exports = Gemini;