108 lines
3.1 KiB
JavaScript
108 lines
3.1 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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const 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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const matcher = jasmineUnderTest.matchers.toThrow(),
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fn = function() {
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return true;
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};
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const 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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const matchersUtil = {
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equals: jasmine.createSpy('delegated-equal').and.returnValue(true),
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pp: jasmineUnderTest.makePrettyPrinter()
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},
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matcher = jasmineUnderTest.matchers.toThrow(matchersUtil),
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fn = function() {
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throw 5;
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};
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const result = matcher.compare(fn);
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expect(result.pass).toBe(true);
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expect(result.message()).toEqual(
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'Expected function not to throw, but it threw 5.'
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);
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});
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it('passes even if what is thrown is falsy', function() {
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const matcher = jasmineUnderTest.matchers.toThrow({
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pp: jasmineUnderTest.makePrettyPrinter()
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}),
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fn = function() {
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throw undefined;
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};
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const result = matcher.compare(fn);
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expect(result.pass).toBe(true);
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expect(result.message()).toEqual(
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'Expected function not to throw, but it threw undefined.'
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);
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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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const matchersUtil = {
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equals: jasmine.createSpy('delegated-equal').and.returnValue(true),
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pp: jasmineUnderTest.makePrettyPrinter()
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},
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matcher = jasmineUnderTest.matchers.toThrow(matchersUtil),
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fn = function() {
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throw 5;
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};
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const 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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const matchersUtil = {
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equals: jasmine.createSpy('delegated-equal').and.returnValue(false),
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pp: jasmineUnderTest.makePrettyPrinter()
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},
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matcher = jasmineUnderTest.matchers.toThrow(matchersUtil),
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fn = function() {
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throw 5;
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};
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const result = matcher.compare(fn, 'foo');
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expect(result.pass).toBe(false);
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expect(result.message()).toEqual(
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"Expected function to throw 'foo', but it threw 5."
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);
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});
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it('fails if what is thrown is not equivalent to undefined', function() {
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const matchersUtil = {
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equals: jasmine.createSpy('delegated-equal').and.returnValue(false),
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pp: jasmineUnderTest.makePrettyPrinter()
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},
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matcher = jasmineUnderTest.matchers.toThrow(matchersUtil),
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fn = function() {
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throw 5;
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};
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const result = matcher.compare(fn, void 0);
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expect(result.pass).toBe(false);
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expect(result.message()).toEqual(
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'Expected function to throw undefined, but it threw 5.'
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);
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});
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});
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