140 lines
3.7 KiB
JavaScript
140 lines
3.7 KiB
JavaScript
describe("FakeDate", function() {
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it("does not fail if no global date is found", function() {
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var fakeGlobal = {},
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mockDate = new j$.MockDate(fakeGlobal);
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mockDate.install();
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fakeGlobal.Date = jasmine.createSpy("Date");
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mockDate.tick(0);
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expect(fakeGlobal.Date).not.toHaveBeenCalled();
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});
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it("does not replace global Date if it is not installed", function() {
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var fakeDate = jasmine.createSpy("global Date"),
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fakeGlobal = { Date: fakeDate },
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mockDate = new j$.MockDate(fakeGlobal);
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fakeDate.now = function(){};
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expect(fakeDate).toEqual(fakeGlobal.Date);
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mockDate.install();
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expect(fakeDate).not.toEqual(fakeGlobal.Date);
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});
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it("replaces the global Date on uninstall", function() {
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var fakeDate = jasmine.createSpy("global Date"),
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fakeGlobal = { Date: fakeDate },
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mockDate = new j$.MockDate(fakeGlobal);
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fakeDate.now = function(){};
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mockDate.install();
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mockDate.uninstall();
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expect(fakeDate).toEqual(fakeGlobal.Date);
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});
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it("takes the current time as the base when installing without parameters", function() {
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var fakeDate = jasmine.createSpy("global Date"),
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fakeGlobal = { Date: fakeDate },
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mockDate = new j$.MockDate(fakeGlobal);
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fakeGlobal.Date.prototype.getTime = function() {
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return 1000;
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};
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fakeDate.now = function(){ return 1000; };
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mockDate.install();
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expect(new fakeGlobal.Date().getTime()).toEqual(1000);
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});
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it("can accept a date as time base when installing", function() {
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var fakeGlobal = { Date: Date },
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mockDate = new j$.MockDate(fakeGlobal),
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baseDate = new Date(2013, 9, 23);
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mockDate.install(baseDate);
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expect(new fakeGlobal.Date().getTime()).toEqual(baseDate.getTime());
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});
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it("fakes current time when using Date.now()", function() {
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var fakeGlobal = { Date: Date },
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mockDate = new j$.MockDate(fakeGlobal),
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baseDate = new Date(2013, 9, 23);
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mockDate.install(baseDate);
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expect(fakeGlobal.Date.now()).toEqual(baseDate.getTime());
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});
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it("makes time passes using tick", function() {
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var fakeDate = jasmine.createSpy("global Date"),
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fakeGlobal = { Date: fakeDate },
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mockDate = new j$.MockDate(fakeGlobal);
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fakeDate.now = function(){ return 1000; };
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mockDate.install();
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mockDate.tick(100);
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expect(fakeGlobal.Date.now()).toEqual(1100);
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mockDate.tick(1000);
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expect(fakeGlobal.Date.now()).toEqual(2100);
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});
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it("allows to increase 0 milliseconds using tick", function() {
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var fakeDate = jasmine.createSpy("global Date"),
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fakeGlobal = { Date: fakeDate },
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mockDate = new j$.MockDate(fakeGlobal);
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fakeDate.now = function(){ return 1000; };
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mockDate.install();
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mockDate.tick(0);
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expect(fakeGlobal.Date.now()).toEqual(1000);
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mockDate.tick();
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expect(fakeGlobal.Date.now()).toEqual(1000);
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});
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it("allows to create a Date in a different time than now", function() {
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var fakeGlobal = { Date: Date },
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mockDate = new j$.MockDate(fakeGlobal),
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baseDate = new Date(2013, 9, 23, 0, 0, 0, 0);
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mockDate.install(baseDate);
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var otherDate = new fakeGlobal.Date(2013, 9, 23, 0, 0, 1, 0);
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mockDate.tick(1000);
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expect(fakeGlobal.Date.now()).toEqual(otherDate.getTime());
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});
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it("copies all Date properties to the mocked date", function() {
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var fakeGlobal = { Date: Date },
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mockDate = new j$.MockDate(fakeGlobal),
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baseDate = new Date(2013, 9, 23, 0, 0, 0, 0);
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mockDate.install(baseDate);
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var otherDate = new fakeGlobal.Date();
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expect(otherDate).toEqual(jasmine.any(Date));
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expect(fakeGlobal.Date.UTC(2013, 9, 23)).toEqual(Date.UTC(2013, 9, 23));
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});
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});
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