79 lines
2.6 KiB
JavaScript
79 lines
2.6 KiB
JavaScript
describe('#toBeRejectedWithMatching', function() {
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it('passes if the promise is rejected with something matching the predicate', function() {
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const matcher = privateUnderTest.asyncMatchers.toBeRejectedWithMatching(),
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actual = Promise.reject(new Error('nope')),
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predicate = value => value.message === 'nope';
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return matcher.compare(actual, predicate).then(function(result) {
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expect(result).toEqual(jasmine.objectContaining({ pass: true }));
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});
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});
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it('fails if the promise resolves', function() {
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const matcher = privateUnderTest.asyncMatchers.toBeRejectedWithMatching(),
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actual = Promise.resolve(),
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predicate = () => true;
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return matcher.compare(actual, predicate).then(function(result) {
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expect(result).toEqual(jasmine.objectContaining({ pass: false }));
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});
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});
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it('fails if the promise is rejected with something not matching the predicate', function() {
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const matcher = privateUnderTest.asyncMatchers.toBeRejectedWithMatching(),
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actual = Promise.reject('A Bad Apple'),
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predicate = value => value === 'A Good Orange';
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return matcher.compare(actual, predicate).then(function(result) {
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expect(result).toEqual(
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jasmine.objectContaining({
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pass: false,
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message:
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'Expected a promise to be rejected matching a predicate, but the predicate returned "false".'
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})
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);
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});
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});
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it('should build its error correctly when negated', function() {
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const matcher = privateUnderTest.asyncMatchers.toBeRejectedWithMatching(),
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actual = Promise.reject(true),
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predicate = () => true;
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return matcher.compare(actual, predicate).then(function(result) {
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expect(result).toEqual(
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jasmine.objectContaining({
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pass: true,
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message:
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'Expected a promise not to be rejected matching a predicate, but the predicate returned "true".'
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})
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);
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});
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});
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it('fails if actual is not a promise', function() {
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const matcher = privateUnderTest.asyncMatchers.toBeRejectedWithMatching(),
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actual = 'not a promise';
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function f() {
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return matcher.compare(actual);
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}
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expect(f).toThrowError(
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'Expected toBeRejectedWithMatching to be called on a promise but was on a string.'
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);
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});
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it('fails if predicate is not a function', function() {
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const matcher = privateUnderTest.asyncMatchers.toBeRejectedWithMatching(),
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actual = Promise.resolve(),
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predicate = 'not a function';
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function f() {
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return matcher.compare(actual, predicate);
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}
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expect(f).toThrowError(/Predicate is not a Function/);
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});
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});
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