chai/test/utilities.js
Kaito Udagawa 704670a23b Feature: backslash-escaping in .deep.property
This commit includes:
* getPathInfo handles escaping `.[]`
* Documentation added to `.property`
* Documentation added to `.getPathInfo`
* Test cases for `.property`
* Test cases for `.deep.property`
* Test cases for `.getPathInfo`
Note that the input of `.getPathInfo` assumed to match the following:
/^(?:(?:\\[.\[\]]|[^.\[\]])+|\[\d+\])(?:\.(?:\\[.\[\]]|[^.\[\]])+|\[\d+\])$/
2015-03-18 21:57:03 +09:00

451 lines
13 KiB
JavaScript

describe('utilities', function () {
var expect = chai.expect;
after(function() {
// Some clean-up so we can run tests in a --watch
delete chai.Assertion.prototype.eqqqual;
delete chai.Assertion.prototype.result;
delete chai.Assertion.prototype.doesnotexist;
});
it('_obj', function () {
var foo = 'bar'
, test = expect(foo);
expect(test).to.have.property('_obj', foo);
var bar = 'baz';
test._obj = bar;
expect(test).to.have.property('_obj', bar);
test.equal(bar);
});
it('transferFlags', function () {
var foo = 'bar'
, test = expect(foo).not;
chai.use(function (_chai, utils) {
var obj = {};
utils.transferFlags(test, obj);
expect(utils.flag(obj, 'object')).to.equal(foo);
expect(utils.flag(obj, 'negate')).to.equal(true);
});
});
it('transferFlags, includeAll = false', function () {
var foo = 'bar';
chai.use(function (_chai, utils) {
var obj = {};
var test = function() {};
var assertion = new chai.Assertion({}, "message", test);
var flag = {};
utils.flag(obj, 'flagMe', flag);
utils.flag(obj, 'negate', true);
utils.transferFlags(test, obj, false);
expect(utils.flag(obj, 'object')).to.equal(undefined);
expect(utils.flag(obj, 'message')).to.equal(undefined);
expect(utils.flag(obj, 'ssfi')).to.equal(undefined);
expect(utils.flag(obj, 'negate')).to.equal(true);
expect(utils.flag(obj, 'flagMe')).to.equal(flag);
});
});
it('getPathValue', function () {
var object = {
hello: 'universe'
, universe: {
hello: 'world'
}
, world: [ 'hello', 'universe' ]
, complex: [
{ hello: 'universe' }
, { universe: 'world' }
, [ { hello: 'world' } ]
]
}
var arr = [ [ true ] ];
chai.use(function (_chai, utils) {
var gpv = utils.getPathValue;
expect(gpv('hello', object)).to.equal('universe');
expect(gpv('universe.hello', object)).to.equal('world');
expect(gpv('world[1]', object)).to.equal('universe');
expect(gpv('complex[1].universe', object)).to.equal('world');
expect(gpv('complex[2][0].hello', object)).to.equal('world');
expect(gpv('[0][0]', arr)).to.be.true;
});
});
describe('getPathInfo', function() {
var gpi,
obj = {
id: '10702S300W',
primes: [2, 3, 5, 7, 11],
dimensions: {
units: 'mm',
lengths: [[1.2, 3.5], [2.2, 1.5], [5, 7]]
},
'dimensions.lengths': {
'[2]': [1.2, 3.5]
}
};
beforeEach(function() {
chai.use(function (_chai, utils) {
gpi = utils.getPathInfo;
});
});
it('should handle simple property', function() {
var info = gpi('dimensions.units', obj);
info.parent.should.equal(obj.dimensions);
info.value.should.equal(obj.dimensions.units);
info.name.should.equal('units');
info.exists.should.be.true;
});
it('should handle non-existent property', function() {
var info = gpi('dimensions.size', obj);
info.parent.should.equal(obj.dimensions);
expect(info.value).to.be.undefined;
info.name.should.equal('size');
info.exists.should.be.false;
});
it('should handle array index', function() {
var info = gpi('primes[2]', obj);
info.parent.should.equal(obj.primes);
info.value.should.equal(obj.primes[2]);
info.name.should.equal(2);
info.exists.should.be.true;
});
it('should handle dimensional array', function() {
var info = gpi('dimensions.lengths[2][1]', obj);
info.parent.should.equal(obj.dimensions.lengths[2]);
info.value.should.equal(obj.dimensions.lengths[2][1]);
info.name.should.equal(1);
info.exists.should.be.true;
});
it('should handle out of bounds array index', function() {
var info = gpi('dimensions.lengths[3]', obj);
info.parent.should.equal(obj.dimensions.lengths);
expect(info.value).to.be.undefined;
info.name.should.equal(3);
info.exists.should.be.false;
});
it('should handle out of bounds dimensional array index', function() {
var info = gpi('dimensions.lengths[2][5]', obj);
info.parent.should.equal(obj.dimensions.lengths[2]);
expect(info.value).to.be.undefined;
info.name.should.equal(5);
info.exists.should.be.false;
});
it('should handle backslash-escaping for .[]', function() {
var info = gpi('dimensions\\.lengths.\\[2\\][1]', obj);
info.parent.should.equal(obj['dimensions.lengths']['[2]']);
info.value.should.equal(obj['dimensions.lengths']['[2]'][1]);
info.name.should.equal(1);
info.exists.should.be.true;
});
});
describe('hasProperty', function() {
var hp;
beforeEach(function() {
chai.use(function (_chai, utils) {
hp = utils.hasProperty;
});
});
it('should handle array index', function() {
var arr = [1, 2, 'cheeseburger'];
hp(1, arr).should.be.true;
hp(3, arr).should.be.false;
});
it('should handle literal types', function() {
var s = 'string literal';
hp('length', s).should.be.true;
hp(3, s).should.be.true;
hp(14, s).should.be.false;
hp('foo', 1).should.be.false;
});
it('should handle undefined', function() {
var o = {
foo: 'bar'
};
hp('foo', o).should.be.true;
hp('baz', o).should.be.false;
hp(0, o).should.be.false;
});
it('should handle undefined', function() {
hp('foo', undefined).should.be.false;
});
it('should handle null', function() {
hp('foo', null).should.be.false;
});
});
it('addMethod', function () {
chai.use(function(_chai, utils) {
expect(_chai.Assertion).to.not.respondTo('eqqqual');
_chai.Assertion.addMethod('eqqqual', function (str) {
var object = utils.flag(this, 'object');
new _chai.Assertion(object).to.be.eql(str);
});
expect(_chai.Assertion).to.respondTo('eqqqual');
});
expect('spec').to.eqqqual('spec');
});
it('addMethod returning result', function () {
chai.use(function(_chai, utils) {
_chai.Assertion.addMethod('result', function () {
return 'result';
})
});
expect(expect('foo').result()).to.equal('result');
});
it('overwriteMethod', function () {
chai.use(function (_chai, _) {
expect(_chai.Assertion).to.respondTo('eqqqual');
_chai.Assertion.overwriteMethod('eqqqual', function (_super) {
return function (str) {
var object = _.flag(this, 'object');
if (object == 'cucumber' && str == 'cuke') {
_.flag(this, 'cucumber', true);
} else {
_super.apply(this, arguments);
}
};
});
});
var vege = expect('cucumber').to.eqqqual('cucumber');
expect(vege.__flags).to.not.have.property('cucumber');
var cuke = expect('cucumber').to.eqqqual('cuke');
expect(cuke.__flags).to.have.property('cucumber');
chai.use(function (_chai, _) {
expect(_chai.Assertion).to.not.respondTo('doesnotexist');
_chai.Assertion.overwriteMethod('doesnotexist', function (_super) {
expect(_super).to.be.a('function');
return function () {
_.flag(this, 'doesnt', true);
_super.apply(this, arguments);
}
});
});
var dne = expect('something').to.doesnotexist();
expect(dne.__flags).to.have.property('doesnt');
});
it('overwriteMethod returning result', function () {
chai.use(function (_chai, _) {
_chai.Assertion.overwriteMethod('result', function (_super) {
return function () {
return 'result';
}
});
});
expect(expect('foo').result()).to.equal('result');
});
it('addProperty', function () {
chai.use(function (_chai, _) {
_chai.Assertion.addProperty('tea', function () {
_.flag(this, 'tea', 'chai');
});
});
var assert = expect('chai').to.be.tea;
expect(assert.__flags.tea).to.equal('chai');
});
it('addProperty returning result', function () {
chai.use(function(_chai, _) {
_chai.Assertion.addProperty('result', function () {
return 'result';
})
});
expect(expect('foo').result).to.equal('result');
});
it('overwriteProperty', function () {
chai.use(function (_chai, _) {
expect(new chai.Assertion()).to.have.property('tea');
_chai.Assertion.overwriteProperty('tea', function (_super) {
return function () {
var act = _.flag(this, 'object');
if (act === 'matcha') {
_.flag(this, 'tea', 'matcha');
} else {
_super.call(this);
}
}
});
});
var matcha = expect('matcha').to.be.tea;
expect(matcha.__flags.tea).to.equal('matcha');
var assert = expect('something').to.be.tea;
expect(assert.__flags.tea).to.equal('chai');
});
it('overwriteProperty returning result', function () {
chai.use(function(_chai, _) {
_chai.Assertion.overwriteProperty('result', function (_super) {
return function () {
return 'result';
}
});
});
expect(expect('foo').result).to.equal('result');
});
it('getMessage', function () {
chai.use(function (_chai, _) {
expect(_.getMessage({}, [])).to.equal('');
expect(_.getMessage({}, [null, null, null])).to.equal('');
var obj = {};
_.flag(obj, 'message', 'foo');
expect(_.getMessage(obj, [])).to.contain('foo');
var obj = {};
var msg = function() { return "expected a to eql b"; }
var negateMsg = function() { return "expected a not to eql b"; }
expect(_.getMessage(obj, [null, msg, negateMsg])).to.equal("expected a to eql b");
_.flag(obj, 'negate', true);
expect(_.getMessage(obj, [null, msg, negateMsg])).to.equal("expected a not to eql b");
});
});
it('inspect with custom object-returning inspect()s', function () {
chai.use(function (_chai, _) {
var obj = {
outer: {
inspect: function () {
return { foo: 'bar' };
}
}
};
expect(_.inspect(obj)).to.equal('{ outer: { foo: \'bar\' } }');
});
});
it('inspect negative zero', function () {
chai.use(function (_chai, _) {
expect(_.inspect(-0)).to.equal('-0');
expect(_.inspect([-0])).to.equal('[ -0 ]');
expect(_.inspect({ hp: -0 })).to.equal('{ hp: -0 }');
});
});
it('addChainableMethod', function () {
chai.use(function (_chai, _) {
_chai.Assertion.addChainableMethod('x',
function () {
new chai.Assertion(this._obj).to.be.equal('x');
}
, function () {
this._obj = this._obj || {};
this._obj.__x = 'X!'
}
);
expect("foo").x.to.equal("foo");
expect("x").x();
expect(function () {
expect("foo").x();
}).to.throw(_chai.AssertionError);
// Verify whether the original Function properties are present.
// see https://github.com/chaijs/chai/commit/514dd6ce4#commitcomment-2593383
var propertyDescriptor = Object.getOwnPropertyDescriptor(chai.Assertion.prototype, "x");
expect(propertyDescriptor.get).to.have.property("call", Function.prototype.call);
expect(propertyDescriptor.get).to.have.property("apply", Function.prototype.apply);
expect(propertyDescriptor.get()).to.have.property("call", Function.prototype.call);
expect(propertyDescriptor.get()).to.have.property("apply", Function.prototype.apply);
var obj = {};
expect(obj).x.to.be.ok;
expect(obj).to.have.property('__x', 'X!');
})
});
it('overwriteChainableMethod', function () {
chai.use(function (_chai, _) {
_chai.Assertion.overwriteChainableMethod('x',
function(_super) {
return function() {
if (_.flag(this, 'marked')) {
new chai.Assertion(this._obj).to.be.equal('spot');
} else {
_super.apply(this, arguments);
}
};
}
, function(_super) {
return function() {
_.flag(this, 'message', 'x marks the spot');
_super.apply(this, arguments);
};
}
);
// Make sure the original behavior of 'x' remains the same
expect('foo').x.to.equal("foo");
expect("x").x();
expect(function () {
expect("foo").x();
}).to.throw(_chai.AssertionError);
var obj = {};
expect(obj).x.to.be.ok;
expect(obj).to.have.property('__x', 'X!');
// Test the new behavior of 'x'
var assertion = expect('foo').x.to.be.ok;
expect(_.flag(assertion, 'message')).to.equal('x marks the spot');
expect(function () {
var assertion = expect('x');
_.flag(assertion, 'marked', true);
assertion.x()
}).to.throw(_chai.AssertionError);
});
});
});