regression.spec.js

'use strict';

var assert = require('assert');
var fs = require('fs');
var path = require('path');
var run = require('./helpers').runMocha;
var runJSON = require('./helpers').runMochaJSON;

describe('regressions', function () {
  it('issue-1327: should run all 3 specs exactly once', function (done) {
    var args = [];
    run('regression/issue-1327.fixture.js', args, function (err, res) {
      var occurences = function (str) {
        var pattern = new RegExp(str, 'g');
        return (res.output.match(pattern) || []).length;
      };

      if (err) {
        done(err);
        return;
      }
      assert.equal(occurences('testbody1'), 1);
      assert.equal(occurences('testbody2'), 1);
      assert.equal(occurences('testbody3'), 1);

      assert.equal(res.code, 1);
      done();
    });
  });

  it('should not duplicate mocha.opts args in process.argv', function () {
    var processArgv = process.argv.join('');
    var mochaOpts = fs.readFileSync(path.join(__dirname, '..', 'mocha.opts'), 'utf-8').split(/[\s]+/).join('');
    assert.notEqual(processArgv.indexOf(mochaOpts), -1, 'process.argv missing mocha.opts');
    assert.equal(processArgv.indexOf(mochaOpts), processArgv.lastIndexOf(mochaOpts), 'process.argv contains duplicated mocha.opts');
  });

  it('issue-1794: Can\'t --require custom UI and use it', function (done) {
    var simpleUiPath = path.join(__dirname, 'fixtures', 'regression', '1794', 'simple-ui.js');
    var args = ['--require', simpleUiPath, '--ui', 'simple-ui'];
    run('regression/1794/issue-1794.fixture.js', args, function (err, res) {
      if (err) {
        done(err);
        return;
      }
      assert.equal(res.code, 0, 'Custom UI should be loaded');
      done();
    });
  });

  it('issue-1991: Declarations do not get cleaned up unless you set them to `null` - Memory Leak', function (done) {
    // on a modern MBP takes ±5 seconds on node 4.0, but on older laptops with node 0.12 ±40 seconds.
    // Could easily take longer on even weaker machines (Travis-CI containers for example).
    this.timeout(120000);
    this.slow(12000);
    run('regression/issue-1991.fixture.js', [], function (err, res) {
      if (err) {
        done(err);
        return;
      }
      assert.equal(/process out of memory/.test(res.output), false, 'fixture\'s process out of memory!');
      assert.equal(res.code, 0, 'Runnable fn (it/before[Each]/after[Each]) references should be deleted to avoid memory leaks');
      done();
    });
  });

  describe('issue-2286: after doesn\'t execute if test was skipped in beforeEach', function () {
    var afterWasRun = false;
    describe('suite with skipped test for meta test', function () {
      beforeEach(function () { this.skip(); });
      after(function () { afterWasRun = true; });
      it('should be pending', function () {});
    });
    after('meta test', function () {
      expect(afterWasRun).to.be.ok();
    });
  });

  it('issue-2315: cannot read property currentRetry of undefined', function (done) {
    runJSON('regression/issue-2315.fixture.js', [], 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.code, 1);
      done();
    });
  });

  it('issue-2406: should run nested describe.only suites', function (done) {
    this.timeout(2000);
    runJSON('regression/issue-2406.fixture.js', [], 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();
    });
  });

  it('issue-2417: should not recurse infinitely with .only suites nested within each other', function (done) {
    runJSON('regression/issue-2417.fixture.js', [], 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.code, 0);
      done();
    });
  });

  it('issue-1417 uncaught exceptions from async specs', function (done) {
    runJSON('regression/issue-1417.fixture.js', [], 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, 2);

      assert.equal(res.failures[0].title,
        'fails exactly once when a global error is thrown synchronously and done errors');
      assert.equal(res.failures[0].err.message, 'sync error');
      assert.equal(res.failures[1].title,
        'fails exactly once when a global error is thrown synchronously and done completes');
      assert.equal(res.failures[1].err.message, 'sync error');
      assert.equal(res.code, 2);
      done();
    });
  });
});