Files
jasmine/spec/core/matchers/async/toBeRejectedWithMatchingSpec.js
2026-02-26 00:01:45 +01:00

79 lines
2.6 KiB
JavaScript

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