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test.js
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test.js
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const path = require('path');
const { expect } = require('chai');
const isCI = require('is-ci');
const config = require('../../config');
const { createReporter } = require('../../utils/reporter');
const timeline = require('./timeline');
if (config.useLocalBrowsers) {
describe('Concurrency', function () {
let data = '';
function resolvePath (file) {
return path.join(__dirname, file);
}
function run (browsers, concurrency, files, reporter) {
let src = null;
reporter = reporter || 'json';
if (typeof files === 'string')
src = resolvePath(files);
else {
src = files.map(function (file) {
return resolvePath(file);
});
}
return testCafe
.createRunner()
.src(src)
.reporter(reporter, {
write: function (newData) {
data += newData;
},
end: function (newData) {
data += newData;
},
})
.browsers(browsers)
.concurrency(concurrency)
.run();
}
function createConnections (count) {
const connections = [];
function createConnection () {
return testCafe.createBrowserConnection();
}
function addConnection (connection) {
connections.push(connection);
return connections;
}
let promise = Promise.resolve();
for (let i = 0; i < count; i++) {
promise = promise
.then(createConnection)
.then(addConnection);
}
return promise;
}
const customReporter = createReporter({
reportTestDone: function (name) {
this.write('Test ' + name + ' done').newline();
},
reportFixtureStart: function (name) {
this.write('Fixture ' + name + ' started').newline();
},
});
beforeEach(function () {
data = '';
});
afterEach(() => {
timeline.delete();
});
it('Should run tests sequentially if concurrency = 1', function () {
return run('chrome:headless --no-sandbox', 1, './testcafe-fixtures/sequential-test.js')
.then(() => {
expect(timeline.getData()).eql(['long started', 'long finished', 'short started', 'short finished']);
});
});
it('Should run tests concurrently if concurrency > 1', function () {
return run('chrome:headless --no-sandbox', 2, './testcafe-fixtures/concurrent-test.js')
.then(() => {
expect(timeline.getData()).eql(['test started', 'test started', 'short finished', 'long finished']);
});
});
// TODO: this test doesn't work on CI due to big resource demands
if (!isCI) {
it('Should run tests concurrently in different browser kinds', function () {
return run(['chrome:headless --no-sandbox', 'chrome:headless --no-sandbox --user-agent="TestAgent"'], 2, './testcafe-fixtures/multibrowser-concurrent-test.js')
.then(() => {
const timelineData = timeline.getData();
expect(Object.keys(timelineData).length).gt(1);
for (const browserTimeline of Object.values(timelineData))
expect(browserTimeline).eql(['test started', 'test started', 'short finished', 'long finished']);
});
});
}
if (!config.proxyless) {
it('Should run tests concurrently with Role', function () {
return run('chrome:headless --no-sandbox', 2, './testcafe-fixtures/role-test.js')
.then(() => {
expect(timeline.getData()).eql(['/fixtures/concurrency/pages/first-page.html', '/fixtures/concurrency/pages/second-page.html']);
});
});
}
it('Should report fixture start correctly if second fixture finishes before first', function () {
return run('chrome:headless --no-sandbox', 2, ['./testcafe-fixtures/multifixture-test-a.js', './testcafe-fixtures/multifixture-test-b.js'], customReporter)
.then(failedCount => {
expect(failedCount).eql(0);
expect(data.split('\n')).eql([
'Fixture Multifixture A started',
'Test Long test done',
'Fixture Multifixture B started',
'Test Short test done',
'',
]);
});
});
it('Should fail if number of remotes is not divisible by concurrency', function () {
return createConnections(3)
.then(function (connections) {
return run(connections, 2, './testcafe-fixtures/concurrent-test.js');
})
.then(function () {
throw new Error('Promise rejection expected');
})
.catch(function (error) {
expect(error.message).eql('The number of remote browsers should be divisible by the concurrency factor.');
});
});
});
}