mirror of
https://github.com/chaijs/chai
synced 2024-11-16 00:28:03 +00:00
733 lines
19 KiB
JavaScript
733 lines
19 KiB
JavaScript
describe('assert', function () {
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var assert = chai.assert;
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it('assert', function () {
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var foo = 'bar';
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assert(foo == 'bar', "expected foo to equal `bar`");
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err(function () {
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assert(foo == 'baz', "expected foo to equal `bar`");
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}, "expected foo to equal `bar`");
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err(function () {
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assert(foo == 'baz', function() { return "expected foo to equal `bar`"; });
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}, "expected foo to equal `bar`");
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});
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it('fail', function () {
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chai.expect(function () {
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assert.fail(0, 1, 'this has failed');
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}).to.throw(chai.AssertionError, /this has failed/);
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});
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it('isTrue', function () {
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assert.isTrue(true);
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err(function() {
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assert.isTrue(false);
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}, "expected false to be true");
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err(function() {
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assert.isTrue(1);
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}, "expected 1 to be true");
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err(function() {
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assert.isTrue('test');
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}, "expected 'test' to be true");
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});
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it('ok', function () {
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assert.ok(true);
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assert.ok(1);
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assert.ok('test');
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err(function () {
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assert.ok(false);
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}, "expected false to be truthy");
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err(function () {
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assert.ok(0);
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}, "expected 0 to be truthy");
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err(function () {
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assert.ok('');
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}, "expected '' to be truthy");
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});
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it('notOk', function () {
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assert.notOk(false);
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assert.notOk(0);
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assert.notOk('');
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err(function () {
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assert.notOk(true);
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}, "expected true to be falsy");
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err(function () {
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assert.notOk(1);
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}, "expected 1 to be falsy");
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err(function () {
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assert.notOk('test');
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}, "expected 'test' to be falsy");
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});
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it('isFalse', function () {
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assert.isFalse(false);
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err(function() {
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assert.isFalse(true);
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}, "expected true to be false");
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err(function() {
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assert.isFalse(0);
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}, "expected 0 to be false");
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});
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it('equal', function () {
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var foo;
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assert.equal(foo, undefined);
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});
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it('typeof / notTypeOf', function () {
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assert.typeOf('test', 'string');
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assert.typeOf(true, 'boolean');
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assert.typeOf(5, 'number');
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err(function () {
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assert.typeOf(5, 'string');
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}, "expected 5 to be a string");
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});
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it('notTypeOf', function () {
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assert.notTypeOf('test', 'number');
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err(function () {
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assert.notTypeOf(5, 'number');
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}, "expected 5 not to be a number");
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});
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it('instanceOf', function() {
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function Foo(){}
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assert.instanceOf(new Foo(), Foo);
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err(function () {
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assert.instanceOf(5, Foo);
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}, "expected 5 to be an instance of Foo");
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function CrashyObject() {};
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CrashyObject.prototype.inspect = function () {
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throw new Error("Arg's inspect() called even though the test passed");
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};
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assert.instanceOf(new CrashyObject(), CrashyObject);
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});
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it('notInstanceOf', function () {
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function Foo(){}
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assert.notInstanceOf(new Foo(), String);
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err(function () {
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assert.notInstanceOf(new Foo(), Foo);
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}, "expected {} to not be an instance of Foo");
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});
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it('isObject', function () {
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function Foo(){}
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assert.isObject({});
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assert.isObject(new Foo());
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err(function() {
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assert.isObject(true);
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}, "expected true to be an object");
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err(function() {
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assert.isObject(Foo);
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}, "expected [Function: Foo] to be an object");
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err(function() {
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assert.isObject('foo');
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}, "expected 'foo' to be an object");
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});
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it('isNotObject', function () {
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function Foo(){}
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assert.isNotObject(5);
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err(function() {
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assert.isNotObject({});
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}, "expected {} not to be an object");
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});
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it('notEqual', function() {
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assert.notEqual(3, 4);
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err(function () {
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assert.notEqual(5, 5);
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}, "expected 5 to not equal 5");
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});
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it('strictEqual', function() {
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assert.strictEqual('foo', 'foo');
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err(function () {
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assert.strictEqual('5', 5);
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}, "expected \'5\' to equal 5");
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});
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it('notStrictEqual', function() {
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assert.notStrictEqual(5, '5');
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err(function () {
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assert.notStrictEqual(5, 5);
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}, "expected 5 to not equal 5");
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});
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it('deepEqual', function() {
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assert.deepEqual({tea: 'chai'}, {tea: 'chai'});
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err(function () {
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assert.deepEqual({tea: 'chai'}, {tea: 'black'});
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}, "expected { tea: \'chai\' } to deeply equal { tea: \'black\' }");
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var obja = Object.create({ tea: 'chai' })
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, objb = Object.create({ tea: 'chai' });
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assert.deepEqual(obja, objb);
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var obj1 = Object.create({tea: 'chai'})
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, obj2 = Object.create({tea: 'black'});
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err(function () {
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assert.deepEqual(obj1, obj2);
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}, "expected { tea: \'chai\' } to deeply equal { tea: \'black\' }");
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});
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it('deepEqual (ordering)', function() {
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var a = { a: 'b', c: 'd' }
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, b = { c: 'd', a: 'b' };
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assert.deepEqual(a, b);
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});
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it('deepEqual /regexp/', function() {
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assert.deepEqual(/a/, /a/);
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assert.notDeepEqual(/a/, /b/);
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assert.notDeepEqual(/a/, {});
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assert.deepEqual(/a/g, /a/g);
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assert.notDeepEqual(/a/g, /b/g);
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assert.deepEqual(/a/i, /a/i);
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assert.notDeepEqual(/a/i, /b/i);
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assert.deepEqual(/a/m, /a/m);
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assert.notDeepEqual(/a/m, /b/m);
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});
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it('deepEqual (Date)', function() {
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var a = new Date(1, 2, 3)
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, b = new Date(4, 5, 6);
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assert.deepEqual(a, a);
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assert.notDeepEqual(a, b);
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assert.notDeepEqual(a, {});
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});
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it('deepEqual (circular)', function() {
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var circularObject = {}
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, secondCircularObject = {};
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circularObject.field = circularObject;
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secondCircularObject.field = secondCircularObject;
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assert.deepEqual(circularObject, secondCircularObject);
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err(function() {
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secondCircularObject.field2 = secondCircularObject;
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assert.deepEqual(circularObject, secondCircularObject);
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}, "expected { field: [Circular] } to deeply equal { Object (field, field2) }");
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});
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it('notDeepEqual', function() {
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assert.notDeepEqual({tea: 'jasmine'}, {tea: 'chai'});
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err(function () {
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assert.notDeepEqual({tea: 'chai'}, {tea: 'chai'});
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}, "expected { tea: \'chai\' } to not deeply equal { tea: \'chai\' }");
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});
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it('notDeepEqual (circular)', function() {
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var circularObject = {}
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, secondCircularObject = { tea: 'jasmine' };
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circularObject.field = circularObject;
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secondCircularObject.field = secondCircularObject;
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assert.notDeepEqual(circularObject, secondCircularObject);
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err(function() {
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delete secondCircularObject.tea;
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assert.notDeepEqual(circularObject, secondCircularObject);
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}, "expected { field: [Circular] } to not deeply equal { field: [Circular] }");
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});
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it('isNull', function() {
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assert.isNull(null);
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err(function () {
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assert.isNull(undefined);
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}, "expected undefined to equal null");
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});
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it('isNotNull', function() {
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assert.isNotNull(undefined);
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err(function () {
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assert.isNotNull(null);
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}, "expected null to not equal null");
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});
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it('isUndefined', function() {
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assert.isUndefined(undefined);
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err(function () {
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assert.isUndefined(null);
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}, "expected null to equal undefined");
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});
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it('isDefined', function() {
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assert.isDefined(null);
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err(function () {
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assert.isDefined(undefined);
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}, "expected undefined to not equal undefined");
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});
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it('isFunction', function() {
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var func = function() {};
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assert.isFunction(func);
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err(function () {
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assert.isFunction({});
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}, "expected {} to be a function");
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});
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it('isNotFunction', function () {
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assert.isNotFunction(5);
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err(function () {
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assert.isNotFunction(function () {});
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}, "expected [Function] not to be a function");
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});
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it('isArray', function() {
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assert.isArray([]);
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assert.isArray(new Array);
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err(function () {
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assert.isArray({});
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}, "expected {} to be an array");
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});
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it('isNotArray', function () {
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assert.isNotArray(3);
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err(function () {
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assert.isNotArray([]);
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}, "expected [] not to be an array");
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err(function () {
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assert.isNotArray(new Array);
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}, "expected [] not to be an array");
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});
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it('isString', function() {
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assert.isString('Foo');
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assert.isString(new String('foo'));
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err(function () {
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assert.isString(1);
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}, "expected 1 to be a string");
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});
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it('isNotString', function () {
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assert.isNotString(3);
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assert.isNotString([ 'hello' ]);
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err(function () {
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assert.isNotString('hello');
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}, "expected 'hello' not to be a string");
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});
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it('isNumber', function() {
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assert.isNumber(1);
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assert.isNumber(Number('3'));
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err(function () {
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assert.isNumber('1');
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}, "expected \'1\' to be a number");
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});
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it('isNotNumber', function () {
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assert.isNotNumber('hello');
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assert.isNotNumber([ 5 ]);
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err(function () {
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assert.isNotNumber(4);
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}, "expected 4 not to be a number");
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});
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it('isBoolean', function() {
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assert.isBoolean(true);
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assert.isBoolean(false);
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err(function () {
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assert.isBoolean('1');
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}, "expected \'1\' to be a boolean");
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});
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it('isNotBoolean', function () {
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assert.isNotBoolean('true');
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err(function () {
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assert.isNotBoolean(true);
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}, "expected true not to be a boolean");
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err(function () {
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assert.isNotBoolean(false);
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}, "expected false not to be a boolean");
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});
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it('include', function() {
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assert.include('foobar', 'bar');
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assert.include([ 1, 2, 3], 3);
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assert.include({a:1, b:2}, {b:2});
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err(function () {
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assert.include('foobar', 'baz');
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}, "expected \'foobar\' to include \'baz\'");
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err(function () {
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assert.include(undefined, 'bar');
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}, "expected undefined to include 'bar'");
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});
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it('notInclude', function () {
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assert.notInclude('foobar', 'baz');
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assert.notInclude([ 1, 2, 3 ], 4);
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assert.notInclude(undefined, 'bar');
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err(function () {
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assert.notInclude('foobar', 'bar');
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}, "expected \'foobar\' to not include \'bar\'");
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});
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it('lengthOf', function() {
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assert.lengthOf([1,2,3], 3);
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assert.lengthOf('foobar', 6);
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err(function () {
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assert.lengthOf('foobar', 5);
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}, "expected 'foobar' to have a length of 5 but got 6");
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err(function () {
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assert.lengthOf(1, 5);
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}, "expected 1 to have a property \'length\'");
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});
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it('match', function () {
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assert.match('foobar', /^foo/);
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assert.notMatch('foobar', /^bar/);
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err(function () {
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assert.match('foobar', /^bar/i);
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}, "expected 'foobar' to match /^bar/i");
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err(function () {
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assert.notMatch('foobar', /^foo/i);
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}, "expected 'foobar' not to match /^foo/i");
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});
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it('property', function () {
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var obj = { foo: { bar: 'baz' } };
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var simpleObj = { foo: 'bar' };
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assert.property(obj, 'foo');
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assert.deepProperty(obj, 'foo.bar');
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assert.notProperty(obj, 'baz');
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assert.notProperty(obj, 'foo.bar');
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assert.notDeepProperty(obj, 'foo.baz');
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assert.deepPropertyVal(obj, 'foo.bar', 'baz');
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assert.deepPropertyNotVal(obj, 'foo.bar', 'flow');
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err(function () {
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assert.property(obj, 'baz');
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}, "expected { foo: { bar: 'baz' } } to have a property 'baz'");
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err(function () {
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assert.deepProperty(obj, 'foo.baz');
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}, "expected { foo: { bar: 'baz' } } to have a deep property 'foo.baz'");
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err(function () {
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assert.notProperty(obj, 'foo');
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}, "expected { foo: { bar: 'baz' } } to not have property 'foo'");
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err(function () {
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assert.notDeepProperty(obj, 'foo.bar');
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}, "expected { foo: { bar: 'baz' } } to not have deep property 'foo.bar'");
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err(function () {
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assert.propertyVal(simpleObj, 'foo', 'ball');
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}, "expected { foo: 'bar' } to have a property 'foo' of 'ball', but got 'bar'");
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err(function () {
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assert.deepPropertyVal(obj, 'foo.bar', 'ball');
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}, "expected { foo: { bar: 'baz' } } to have a deep property 'foo.bar' of 'ball', but got 'baz'");
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err(function () {
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assert.propertyNotVal(simpleObj, 'foo', 'bar');
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}, "expected { foo: 'bar' } to not have a property 'foo' of 'bar'");
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err(function () {
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assert.deepPropertyNotVal(obj, 'foo.bar', 'baz');
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}, "expected { foo: { bar: 'baz' } } to not have a deep property 'foo.bar' of 'baz'");
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});
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it('throws', function() {
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assert.throws(function() { throw new Error('foo'); });
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assert.throws(function() { throw new Error('bar'); }, 'bar');
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assert.throws(function() { throw new Error('bar'); }, /bar/);
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assert.throws(function() { throw new Error('bar'); }, Error);
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assert.throws(function() { throw new Error('bar'); }, Error, 'bar');
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var thrownErr = assert.throws(function() { throw new Error('foo'); });
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assert(thrownErr instanceof Error, 'assert.throws returns error');
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assert(thrownErr.message === 'foo', 'assert.throws returns error message');
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err(function () {
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assert.throws(function() { throw new Error('foo') }, TypeError);
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}, "expected [Function] to throw 'TypeError' but 'Error: foo' was thrown")
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err(function () {
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assert.throws(function() { throw new Error('foo') }, 'bar');
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}, "expected [Function] to throw error including 'bar' but got 'foo'")
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err(function () {
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assert.throws(function() { throw new Error('foo') }, Error, 'bar');
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}, "expected [Function] to throw error including 'bar' but got 'foo'")
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err(function () {
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assert.throws(function() { throw new Error('foo') }, TypeError, 'bar');
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}, "expected [Function] to throw 'TypeError' but 'Error: foo' was thrown")
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err(function () {
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assert.throws(function() {});
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}, "expected [Function] to throw an error");
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err(function () {
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assert.throws(function() { throw new Error('') }, 'bar');
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}, "expected [Function] to throw error including 'bar' but got ''");
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err(function () {
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assert.throws(function() { throw new Error('') }, /bar/);
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}, "expected [Function] to throw error matching /bar/ but got ''");
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});
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it('doesNotThrow', function() {
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function CustomError(message) {
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this.name = 'CustomError';
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this.message = message;
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}
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CustomError.prototype = Error.prototype;
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assert.doesNotThrow(function() { });
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assert.doesNotThrow(function() { }, 'foo');
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err(function () {
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assert.doesNotThrow(function() { throw new Error('foo'); });
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}, "expected [Function] to not throw an error but 'Error: foo' was thrown");
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err(function () {
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assert.doesNotThrow(function() { throw new CustomError('foo'); });
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}, "expected [Function] to not throw an error but 'CustomError: foo' was thrown");
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});
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it('ifError', function() {
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assert.ifError(false);
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assert.ifError(null);
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assert.ifError(undefined);
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err(function () {
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assert.ifError('foo');
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}, "expected \'foo\' to be falsy");
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});
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it('operator', function() {
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// For testing undefined and null with == and ===
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var w;
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assert.operator(1, '<', 2);
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assert.operator(2, '>', 1);
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assert.operator(1, '==', 1);
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assert.operator(1, '<=', 1);
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assert.operator(1, '>=', 1);
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assert.operator(1, '!=', 2);
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assert.operator(1, '!==', 2);
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assert.operator(1, '!==', '1');
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assert.operator(w, '==', undefined);
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assert.operator(w, '===', undefined);
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assert.operator(w, '==', null);
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err(function () {
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assert.operator(1, '=', 2);
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}, 'Invalid operator "="');
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err(function () {
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assert.operator(2, '<', 1);
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}, "expected 2 to be < 1");
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err(function () {
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assert.operator(1, '>', 2);
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}, "expected 1 to be > 2");
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err(function () {
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assert.operator(1, '==', 2);
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}, "expected 1 to be == 2");
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err(function () {
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assert.operator(1, '===', '1');
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}, "expected 1 to be === \'1\'");
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err(function () {
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assert.operator(2, '<=', 1);
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}, "expected 2 to be <= 1");
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err(function () {
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assert.operator(1, '>=', 2);
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}, "expected 1 to be >= 2");
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err(function () {
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assert.operator(1, '!=', 1);
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}, "expected 1 to be != 1");
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err(function () {
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assert.operator(1, '!==', 1);
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}, "expected 1 to be !== 1");
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err(function () {
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assert.operator(w, '===', null);
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}, "expected undefined to be === null");
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});
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it('closeTo', function(){
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assert.closeTo(1.5, 1.0, 0.5);
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assert.closeTo(10, 20, 20);
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assert.closeTo(-10, 20, 30);
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err(function(){
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assert.closeTo(2, 1.0, 0.5);
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}, "expected 2 to be close to 1 +/- 0.5");
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err(function(){
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assert.closeTo(-10, 20, 29);
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}, "expected -10 to be close to 20 +/- 29");
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err(function() {
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assert.closeTo([1.5], 1.0, 0.5);
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}, "expected [ 1.5 ] to be a number");
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err(function() {
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assert.closeTo(1.5, "1.0", 0.5);
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}, "the arguments to closeTo must be numbers");
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err(function() {
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assert.closeTo(1.5, 1.0, true);
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}, "the arguments to closeTo must be numbers");
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});
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it('members', function() {
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assert.includeMembers([1, 2, 3], [2, 3]);
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assert.includeMembers([1, 2, 3], []);
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assert.includeMembers([1, 2, 3], [3]);
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err(function() {
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assert.includeMembers([5, 6], [7, 8]);
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}, 'expected [ 5, 6 ] to be a superset of [ 7, 8 ]');
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err(function() {
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assert.includeMembers([5, 6], [5, 6, 0]);
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}, 'expected [ 5, 6 ] to be a superset of [ 5, 6, 0 ]');
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});
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it('memberEquals', function() {
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assert.sameMembers([], []);
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assert.sameMembers([1, 2, 3], [3, 2, 1]);
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assert.sameMembers([4, 2], [4, 2]);
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err(function() {
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assert.sameMembers([], [1, 2]);
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}, 'expected [] to have the same members as [ 1, 2 ]');
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err(function() {
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assert.sameMembers([1, 54], [6, 1, 54]);
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}, 'expected [ 1, 54 ] to have the same members as [ 6, 1, 54 ]');
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});
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it('above', function() {
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assert.isAbove(5, 2, '5 should be above 2');
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err(function() {
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assert.isAbove(1, 3);
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}, 'expected 1 to be above 3');
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err(function() {
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assert.isAbove(1, 1);
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}, 'expected 1 to be above 1');
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});
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it('below', function() {
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assert.isBelow(2, 5, '2 should be below 5');
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err(function() {
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assert.isBelow(3, 1);
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}, 'expected 3 to be below 1');
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err(function() {
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assert.isBelow(1, 1);
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}, 'expected 1 to be below 1');
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});
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it('memberDeepEquals', function() {
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assert.sameDeepMembers([ {b: 3}, {a: 2}, {c: 5} ], [ {c: 5}, {b: 3}, {a: 2} ], 'same deep members');
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assert.sameDeepMembers([ {b: 3}, {a: 2}, 5, "hello" ], [ "hello", 5, {b: 3}, {a: 2} ], 'same deep members');
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err(function() {
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assert.sameDeepMembers([ {b: 3} ], [ {c: 3} ])
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}, 'expected [ { b: 3 } ] to have the same members as [ { c: 3 } ]');
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err(function() {
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assert.sameDeepMembers([ {b: 3} ], [ {b: 5} ])
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}, 'expected [ { b: 3 } ] to have the same members as [ { b: 5 } ]');
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});
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it('change', function() {
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var obj = { value: 10, str: 'foo' },
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fn = function() { obj.value += 5 },
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bangFn = function() { obj.str += '!' },
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smFn = function() { 'foo' + 'bar' };
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assert.changes(fn, obj, 'value');
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assert.doesNotChange(smFn, obj, 'value');
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assert.changes(bangFn, obj, 'str');
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});
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it('increase, decrease', function() {
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var obj = { value: 10 },
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incFn = function() { obj.value += 2 },
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decFn = function() { obj.value -= 3 },
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smFn = function() { obj.value += 0 };
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assert.decreases(decFn, obj, 'value');
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assert.doesNotDecrease(smFn, obj, 'value');
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assert.increases(incFn, obj, 'value');
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assert.doesNotIncrease(smFn, obj, 'value');
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});
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});
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