434575f49d
The old style of merging all of a function's variable declarations into a single statement made some sense back in the days of var, but there's no reason to keep doing it now that we use const and let.
79 lines
2.7 KiB
JavaScript
79 lines
2.7 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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const actual = Promise.reject(new Error('nope'));
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const 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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const actual = Promise.resolve();
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const 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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const actual = Promise.reject('A Bad Apple');
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const 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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const actual = Promise.reject(true);
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const 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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const 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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const actual = Promise.resolve();
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const 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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