forked from mochajs/mocha
/
options.spec.js
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/
options.spec.js
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'use strict';
var path = require('path');
var assert = require('assert');
var helpers = require('./helpers');
var run = helpers.runMochaJSON;
var directInvoke = helpers.invokeMocha;
var resolvePath = helpers.resolveFixturePath;
var args = [];
describe('options', function () {
describe('--async-only', function () {
before(function () {
args = ['--async-only'];
});
it('should fail synchronous specs', function (done) {
run('options/async-only-sync.fixture.js', args, function (err, res) {
if (err) {
done(err);
return;
}
assert.equal(res.stats.pending, 0);
assert.equal(res.stats.passes, 0);
assert.equal(res.stats.failures, 1);
assert.equal(res.failures[0].title, 'throws an error');
assert.equal(res.code, 1);
done();
});
});
it('should allow asynchronous specs', function (done) {
run('options/async-only-async.fixture.js', args, function (err, res) {
if (err) {
done(err);
return;
}
assert.equal(res.stats.pending, 0);
assert.equal(res.stats.passes, 1);
assert.equal(res.stats.failures, 0);
assert.equal(res.passes[0].title, 'should pass');
assert.equal(res.code, 0);
done();
});
});
});
describe('--bail', function () {
before(function () {
args = ['--bail'];
});
it('should stop after the first error', function (done) {
run('options/bail.fixture.js', args, function (err, res) {
if (err) {
done(err);
return;
}
assert.equal(res.stats.pending, 0);
assert.equal(res.stats.passes, 1);
assert.equal(res.stats.failures, 1);
assert.equal(res.passes[0].title, 'should display this spec');
assert.equal(res.failures[0].title, 'should only display this error');
assert.equal(res.code, 1);
done();
});
});
});
describe('--sort', function () {
before(function () {
args = ['--sort'];
});
it('should sort tests in alphabetical order', function (done) {
run('options/sort*', args, function (err, res) {
if (err) {
done(err);
return;
}
assert.equal(res.stats.pending, 0);
assert.equal(res.stats.passes, 2);
assert.equal(res.stats.failures, 0);
assert.equal(res.passes[0].fullTitle,
'alpha should be executed first');
assert.equal(res.code, 0);
done();
});
});
});
describe('--file', function () {
it('should run tests passed via file first', function (done) {
args = ['--file', resolvePath('options/file-alpha.fixture.js')];
run('options/file-beta.fixture.js', args, function (err, res) {
if (err) {
done(err);
return;
}
assert.equal(res.stats.pending, 0);
assert.equal(res.stats.passes, 2);
assert.equal(res.stats.failures, 0);
assert.equal(res.passes[0].fullTitle,
'alpha should be executed first');
assert.equal(res.code, 0);
done();
});
});
it('should run multiple tests passed via file first', function (done) {
args = [
'--file', resolvePath('options/file-alpha.fixture.js'),
'--file', resolvePath('options/file-beta.fixture.js')
];
run('options/file-theta.fixture.js', args, function (err, res) {
if (err) {
done(err);
return;
}
assert.equal(res.stats.pending, 0);
assert.equal(res.stats.passes, 3);
assert.equal(res.stats.failures, 0);
assert.equal(res.passes[0].fullTitle,
'alpha should be executed first');
assert.equal(res.passes[1].fullTitle,
'beta should be executed second');
assert.equal(res.passes[2].fullTitle,
'theta should be executed third');
assert.equal(res.code, 0);
done();
});
});
});
describe('--delay', function () {
before(function () {
args = ['--delay'];
});
it('should run the generated test suite', function (done) {
run('options/delay.fixture.js', args, function (err, res) {
if (err) {
done(err);
return;
}
assert.equal(res.stats.pending, 0);
assert.equal(res.stats.passes, 1);
assert.equal(res.stats.failures, 0);
assert.equal(res.passes[0].title,
'should have no effect if attempted twice in the same suite');
assert.equal(res.code, 0);
done();
});
});
it('should execute exclusive tests only', function (done) {
run('options/delay-only.fixture.js', args, function (err, res) {
if (err) {
done(err);
return;
}
assert.equal(res.stats.tests, 2);
assert.equal(res.stats.pending, 0);
assert.equal(res.stats.passes, 2);
assert.equal(res.stats.failures, 0);
assert.equal(res.passes[0].title, 'should run this');
assert.equal(res.passes[1].title, 'should run this, too');
assert.equal(res.code, 0);
done();
});
});
it('should throw an error if the test suite failed to run', function (done) {
run('options/delay-fail.fixture.js', args, function (err, res) {
if (err) {
done(err);
return;
}
assert.equal(res.stats.pending, 0);
assert.equal(res.stats.passes, 0);
assert.equal(res.stats.failures, 1);
assert.equal(res.failures[0].title,
'Uncaught error outside test suite');
assert.equal(res.code, 1);
done();
});
});
});
describe('--grep', function () {
it('runs specs matching a string', function (done) {
args = ['--grep', 'match'];
run('options/grep.fixture.js', args, function (err, res) {
if (err) {
done(err);
return;
}
assert.equal(res.stats.pending, 0);
assert.equal(res.stats.passes, 2);
assert.equal(res.stats.failures, 0);
assert.equal(res.code, 0);
done();
});
});
describe('runs specs matching a RegExp', function () {
it('with RegExp like strings(pattern follow by flag)', function (done) {
args = ['--grep', '/match/i'];
run('options/grep.fixture.js', args, function (err, res) {
if (err) {
done(err);
return;
}
assert.equal(res.stats.pending, 0);
assert.equal(res.stats.passes, 4);
assert.equal(res.stats.failures, 0);
assert.equal(res.code, 0);
done();
});
});
it('string as pattern', function (done) {
args = ['--grep', '.*'];
run('options/grep.fixture.js', args, function (err, res) {
if (err) {
done(err);
return;
}
assert.equal(res.stats.pending, 0);
assert.equal(res.stats.passes, 4);
assert.equal(res.stats.failures, 1);
assert.equal(res.code, 1);
done();
});
});
});
describe('with --invert', function () {
it('runs specs that do not match the pattern', function (done) {
args = ['--grep', 'fail', '--invert'];
run('options/grep.fixture.js', args, function (err, res) {
if (err) {
done(err);
return;
}
assert.equal(res.stats.pending, 0);
assert.equal(res.stats.passes, 4);
assert.equal(res.stats.failures, 0);
assert.equal(res.code, 0);
done();
});
});
});
});
describe('--retries', function () {
it('retries after a certain threshold', function (done) {
args = ['--retries', '3'];
run('options/retries.fixture.js', args, function (err, res) {
if (err) {
done(err);
return;
}
assert.equal(res.stats.pending, 0);
assert.equal(res.stats.passes, 0);
assert.equal(res.stats.tests, 1);
assert.equal(res.tests[0].currentRetry, 3);
assert.equal(res.stats.failures, 1);
assert.equal(res.code, 1);
done();
});
});
});
describe('--forbid-only', function () {
var onlyErrorMessage = '`.only` forbidden';
before(function () {
args = ['--forbid-only'];
});
it('succeeds if there are only passed tests', function (done) {
run('options/forbid-only/passed.js', args, function (err, res) {
if (err) {
done(err);
return;
}
assert.equal(res.code, 0);
done();
});
});
it('fails if there are tests marked only', function (done) {
run('options/forbid-only/only.js', args, function (err, res) {
if (err) {
done(err);
return;
}
assert.equal(res.code, 1);
assert.equal(res.failures[0].err.message, onlyErrorMessage);
done();
});
});
it('fails if there are tests in suites marked only', function (done) {
run('options/forbid-only/only-suite.js', args, function (err, res) {
assert(!err);
assert.equal(res.code, 1);
assert.equal(res.failures[0].err.message, onlyErrorMessage);
done();
});
});
});
describe('--forbid-pending', function () {
var pendingErrorMessage = 'Pending test forbidden';
before(function () {
args = ['--forbid-pending'];
});
it('succeeds if there are only passed tests', function (done) {
run('options/forbid-pending/passed.js', args, function (err, res) {
if (err) {
done(err);
return;
}
assert.equal(res.code, 0);
done();
});
});
var forbidPendingFailureTests = {
'fails if there are tests marked skip': 'skip.js',
'fails if there are pending tests': 'pending.js',
'fails if tests call `skip()`': 'this.skip.js',
'fails if beforeEach calls `skip()`': 'beforeEach-this.skip.js',
'fails if before calls `skip()`': 'before-this.skip.js',
'fails if there are tests in suites marked skip': 'skip-suite.js'
};
Object.keys(forbidPendingFailureTests).forEach(function (title) {
it(title, function (done) {
run(path.join('options', 'forbid-pending', forbidPendingFailureTests[title]),
args,
function (err, res) {
if (err) {
done(err);
return;
}
assert.equal(res.code, 1);
assert.equal(res.failures[0].err.message, pendingErrorMessage);
done();
});
});
});
});
describe('--exit', function () {
var behaviors = {
enabled: '--exit',
disabled: '--no-exit'
};
/**
* Returns a test that executes Mocha in a subprocess with either
* `--exit`, `--no-exit`, or default behavior.
* @param {boolean} shouldExit - Expected result; `true` if Mocha should
* have force-killed the process.
* @param {string} [behavior] - 'enabled' or 'disabled'
* @returns {Function}
*/
var runExit = function (shouldExit, behavior) {
return function (done) {
this.timeout(0);
this.slow(3000);
var didExit = true;
var t;
var args = behaviors[behavior] ? [behaviors[behavior]] : [];
var mocha = run('exit.fixture.js', args, function (err) {
clearTimeout(t);
if (err) {
done(err);
return;
}
expect(didExit).to.equal(shouldExit);
done();
});
// if this callback happens, then Mocha didn't automatically exit.
t = setTimeout(function () {
didExit = false;
// this is the only way to kill the child, afaik.
// after the process ends, the callback to `run()` above is handled.
mocha.kill('SIGINT');
}, 2000);
};
};
describe('default behavior', function () {
it('should force exit after root suite completion', runExit(false));
});
describe('with exit enabled', function () {
it('should force exit after root suite completion', runExit(true, 'enabled'));
});
describe('with exit disabled', function () {
it('should not force exit after root suite completion', runExit(false, 'disabled'));
});
});
describe('--help', function () {
it('works despite the presence of mocha.opts', function (done) {
directInvoke(['-h'], function (error, result) {
if (error) {
return done(error);
}
expect(result.output).to.contain('Usage:');
done();
}, path.join(__dirname, 'fixtures', 'options', 'help'));
});
});
});