angular-docs-cn/modules/angular2/test/testing/testing_internal_spec.ts

import {
  describe,
  it,
  iit,
  ddescribe,
  expect,
  tick,
  SpyObject,
  beforeEach,
  containsRegexp
} from 'angular2/testing_internal';

import {DOM} from 'angular2/src/platform/dom/dom_adapter';
import {MapWrapper} from 'angular2/src/facade/collection';
import {RegExpWrapper} from 'angular2/src/facade/lang';

class TestObj {
  prop;
  constructor(prop) { this.prop = prop; }
  someFunc(): number { return -1; }
  someComplexFunc(a) { return a; }
}

class SpyTestObj extends SpyObject {
  constructor() { super(TestObj); }
}


export function main() {
  describe('testing', () => {
    describe('equality', () => {
      it('should structurally compare objects', () => {
        var expected = new TestObj(new TestObj({'one': [1, 2]}));
        var actual = new TestObj(new TestObj({'one': [1, 2]}));
        var falseActual = new TestObj(new TestObj({'one': [1, 3]}));

        expect(actual).toEqual(expected);
        expect(falseActual).not.toEqual(expected);
      });
    });

    describe("toHaveCssClass", () => {
      it("should assert that the CSS class is present", () => {
        var el = DOM.createElement('div');
        DOM.addClass(el, 'matias');
        expect(el).toHaveCssClass('matias');
      });

      it("should assert that the CSS class is not present", () => {
        var el = DOM.createElement('div');
        DOM.addClass(el, 'matias');
        expect(el).not.toHaveCssClass('fatias');
      });
    });

    describe("toMatchPAttern", () => {
      it("should assert that a string matches a given pattern", () => {
        expect("matias").toMatchPattern(/ias$/g);
        expect("tobias").toMatchPattern(/ias$/g);
        expect("joonas").not.toMatchPattern(/ias$/g);
      });
    });

    describe('toEqual for Maps', () => {
      it('should detect equality for same reference', () => {
        var m1 = MapWrapper.createFromStringMap({'a': 1});
        expect(m1).toEqual(m1);
      });

      it('should detect equality for same content', () => {
        expect(MapWrapper.createFromStringMap({'a': 1}))
            .toEqual(MapWrapper.createFromStringMap({'a': 1}));
      });

      it('should detect missing entries', () => {
        expect(MapWrapper.createFromStringMap({'a': 1}))
            .not.toEqual(MapWrapper.createFromStringMap({}));
      });

      it('should detect different values', () => {
        expect(MapWrapper.createFromStringMap({'a': 1}))
            .not.toEqual(MapWrapper.createFromStringMap({'a': 2}));
      });

      it('should detect additional entries', () => {
        expect(MapWrapper.createFromStringMap({'a': 1}))
            .not.toEqual(MapWrapper.createFromStringMap({'a': 1, 'b': 1}));
      });
    });

    describe("spy objects", () => {
      var spyObj;

      beforeEach(() => { spyObj = <any>new SpyTestObj(); });

      it("should return a new spy func with no calls",
         () => { expect(spyObj.spy("someFunc")).not.toHaveBeenCalled(); });

      it("should record function calls", () => {
        spyObj.spy("someFunc").andCallFake((a, b) => {return a + b});

        expect(spyObj.someFunc(1, 2)).toEqual(3);
        expect(spyObj.spy("someFunc")).toHaveBeenCalledWith(1, 2);
      });

      it("should match multiple function calls", () => {
        spyObj.someFunc(1, 2);
        spyObj.someFunc(3, 4);
        expect(spyObj.spy("someFunc")).toHaveBeenCalledWith(1, 2);
        expect(spyObj.spy("someFunc")).toHaveBeenCalledWith(3, 4);
      });

      it("should match null arguments", () => {
        spyObj.someFunc(null, "hello");
        expect(spyObj.spy("someFunc")).toHaveBeenCalledWith(null, "hello");
      });

      it("should match using deep equality", () => {
        spyObj.someComplexFunc([1]);
        expect(spyObj.spy("someComplexFunc")).toHaveBeenCalledWith([1]);
      });

      it("should support stubs", () => {
        var s = SpyObject.stub({"a": 1}, {"b": 2});

        expect(s.a()).toEqual(1);
        expect(s.b()).toEqual(2);
      });

      it('should create spys for all methods',
         () => { expect(() => spyObj.someFunc()).not.toThrow(); });

      it('should create a default spy that does not fail for numbers', () => {
        // Previously needed for rtts_assert. Revisit this behavior.
        expect(spyObj.someFunc()).toBe(null);
      });
    });

    describe('containsRegexp', () => {

      it('should allow any prefix and suffix', () => {
        expect(RegExpWrapper.firstMatch(containsRegexp('b'), 'abc')).toBeTruthy();
        expect(RegExpWrapper.firstMatch(containsRegexp('b'), 'adc')).toBeFalsy();
      });

      it('should match various special characters', () => {
        expect(RegExpWrapper.firstMatch(containsRegexp('a.b'), 'a.b')).toBeTruthy();
        expect(RegExpWrapper.firstMatch(containsRegexp('axb'), 'a.b')).toBeFalsy();
      });

    });
  });
}