jscs/test/test.require-space-before-binary-operators.js

JavaScript Style Checker

var Checker = require('../lib/checker');
var assert = require('assert');

describe('rules/require-space-before-binary-operators', function() {

    var checker;
    beforeEach(function() {
        checker = new Checker();
        checker.registerDefaultRules();
    });
    
    it('should report sticky operator for "2+2"', function() {
        checker.configure({ requireSpaceBeforeBinaryOperators: ['+'] });
        assert(checker.checkString('var x = 2+2;').getErrorCount() === 1);
    });
    it('should not report separated operator for "2 +2"', function() {
        checker.configure({ requireSpaceBeforeBinaryOperators: ['+'] });
        assert(checker.checkString('var x = 2 +2;').isEmpty());
    });
    it('should report sticky operator for "a = (a)+ b"', function() {
        checker.configure({ requireSpaceBeforeBinaryOperators: ['+'] });
        assert(checker.checkString('a = (a)+ b').getErrorCount() === 1);
    });
    it('should not report separated operator for "a = (a) + (b)"', function() {
        checker.configure({ requireSpaceBeforeBinaryOperators: ['+'] });
        assert(checker.checkString('a = (a) + (b)').isEmpty());
    });
    it('should not report sticky operator for "2+2" without option', function() {
        checker.configure({ requireSpaceBeforeBinaryOperators: ['-'] });
        assert(checker.checkString('var x = 2+2;').isEmpty());
    });

});