101 lines
2.8 KiB
JavaScript
101 lines
2.8 KiB
JavaScript
describe("toThrow", function() {
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it("throws an error when the actual is not a function", function() {
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var matcher = jasmineUnderTest.matchers.toThrow();
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expect(function() {
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matcher.compare({});
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matcherComparator({});
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}).toThrowError(/Actual is not a Function/);
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});
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it("fails if actual does not throw", function() {
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var matcher = jasmineUnderTest.matchers.toThrow(),
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fn = function() {
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return true;
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},
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result;
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result = matcher.compare(fn);
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expect(result.pass).toBe(false);
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expect(result.message).toEqual("Expected function to throw an exception.");
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});
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it("passes if it throws but there is no expected", function() {
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var util = {
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equals: jasmine.createSpy('delegated-equal').and.returnValue(true)
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},
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matcher = jasmineUnderTest.matchers.toThrow(util),
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fn = function() {
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throw 5;
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},
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result;
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result = matcher.compare(fn);
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expect(result.pass).toBe(true);
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expect(result.message()).toEqual("Expected function not to throw, but it threw 5.");
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});
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it("passes even if what is thrown is falsy", function() {
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var matcher = jasmineUnderTest.matchers.toThrow(),
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fn = function() {
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throw undefined;
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},
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result;
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result = matcher.compare(fn);
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expect(result.pass).toBe(true);
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expect(result.message()).toEqual("Expected function not to throw, but it threw undefined.");
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});
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it("passes if what is thrown is equivalent to what is expected", function() {
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var util = {
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equals: jasmine.createSpy('delegated-equal').and.returnValue(true)
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},
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matcher = jasmineUnderTest.matchers.toThrow(util),
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fn = function() {
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throw 5;
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},
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result;
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result = matcher.compare(fn, 5);
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expect(result.pass).toBe(true);
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expect(result.message()).toEqual("Expected function not to throw 5.");
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});
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it("fails if what is thrown is not equivalent to what is expected", function() {
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var util = {
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equals: jasmine.createSpy('delegated-equal').and.returnValue(false)
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},
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matcher = jasmineUnderTest.matchers.toThrow(util),
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fn = function() {
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throw 5;
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},
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result;
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result = matcher.compare(fn, "foo");
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expect(result.pass).toBe(false);
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expect(result.message()).toEqual("Expected function to throw 'foo', but it threw 5.");
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});
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it("fails if what is thrown is not equivalent to undefined", function() {
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var util = {
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equals: jasmine.createSpy('delegated-equal').and.returnValue(false)
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},
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matcher = jasmineUnderTest.matchers.toThrow(util),
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fn = function() {
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throw 5;
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},
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result;
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result = matcher.compare(fn, void 0);
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expect(result.pass).toBe(false);
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expect(result.message()).toEqual("Expected function to throw undefined, but it threw 5.");
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});
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});
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