/
asymmetricMatchers.test.ts
316 lines (276 loc) · 9.42 KB
/
asymmetricMatchers.test.ts
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/**
* Copyright (c) Facebook, Inc. and its affiliates. All Rights Reserved.
*
* This source code is licensed under the MIT license found in the
* LICENSE file in the root directory of this source tree.
*
*/
import jestExpect from '../';
import {
any,
anything,
arrayContaining,
arrayNotContaining,
objectContaining,
objectNotContaining,
stringContaining,
stringMatching,
stringNotContaining,
stringNotMatching,
} from '../asymmetricMatchers';
test('Any.asymmetricMatch()', () => {
class Thing {}
[
any(String).asymmetricMatch('jest'),
any(Number).asymmetricMatch(1),
any(Function).asymmetricMatch(() => {}),
any(Boolean).asymmetricMatch(true),
/* global BigInt */
any(BigInt).asymmetricMatch(1n),
any(Symbol).asymmetricMatch(Symbol()),
any(Object).asymmetricMatch({}),
any(Object).asymmetricMatch(null),
any(Array).asymmetricMatch([]),
any(Thing).asymmetricMatch(new Thing()),
].forEach(test => {
jestExpect(test).toBe(true);
});
});
test('Any.toAsymmetricMatcher()', () => {
jestExpect(any(Number).toAsymmetricMatcher()).toBe('Any<Number>');
});
test('Any.toAsymmetricMatcher() with function name', () => {
[
['someFunc', function someFunc() {}],
['$someFunc', function $someFunc() {}],
[
'$someFunc2',
(function () {
function $someFunc2() {}
Object.defineProperty($someFunc2, 'name', {value: ''});
return $someFunc2;
})(),
],
[
'$someAsyncFunc',
(function () {
async function $someAsyncFunc() {}
Object.defineProperty($someAsyncFunc, 'name', {value: ''});
return $someAsyncFunc;
})(),
],
[
'$someGeneratorFunc',
(function () {
function* $someGeneratorFunc() {}
Object.defineProperty($someGeneratorFunc, 'name', {value: ''});
return $someGeneratorFunc;
})(),
],
[
'$someFuncWithFakeToString',
(function () {
function $someFuncWithFakeToString() {}
$someFuncWithFakeToString.toString = () => 'Fake to string';
return $someFuncWithFakeToString;
})(),
],
].forEach(([name, fn]) => {
jestExpect(any(fn).toAsymmetricMatcher()).toBe(`Any<${name}>`);
});
});
test('Any throws when called with empty constructor', () => {
jestExpect(() => any()).toThrow();
});
test('Anything matches any type', () => {
[
anything().asymmetricMatch('jest'),
anything().asymmetricMatch(1),
anything().asymmetricMatch(() => {}),
anything().asymmetricMatch(true),
anything().asymmetricMatch({}),
anything().asymmetricMatch([]),
].forEach(test => {
jestExpect(test).toBe(true);
});
});
test('Anything does not match null and undefined', () => {
[
anything().asymmetricMatch(null),
anything().asymmetricMatch(undefined),
].forEach(test => {
jestExpect(test).toBe(false);
});
});
test('Anything.toAsymmetricMatcher()', () => {
jestExpect(anything().toAsymmetricMatcher()).toBe('Anything');
});
test('ArrayContaining matches', () => {
[
arrayContaining([]).asymmetricMatch('jest'),
arrayContaining(['foo']).asymmetricMatch(['foo']),
arrayContaining(['foo']).asymmetricMatch(['foo', 'bar']),
arrayContaining([]).asymmetricMatch({}),
].forEach(test => {
jestExpect(test).toEqual(true);
});
});
test('ArrayContaining does not match', () => {
jestExpect(arrayContaining(['foo']).asymmetricMatch(['bar'])).toBe(false);
});
test('ArrayContaining throws for non-arrays', () => {
jestExpect(() => {
arrayContaining('foo').asymmetricMatch([]);
}).toThrow();
});
test('ArrayNotContaining matches', () => {
jestExpect(arrayNotContaining(['foo']).asymmetricMatch(['bar'])).toBe(true);
});
test('ArrayNotContaining does not match', () => {
[
arrayNotContaining([]).asymmetricMatch('jest'),
arrayNotContaining(['foo']).asymmetricMatch(['foo']),
arrayNotContaining(['foo']).asymmetricMatch(['foo', 'bar']),
arrayNotContaining([]).asymmetricMatch({}),
].forEach(test => {
jestExpect(test).toEqual(false);
});
});
test('ArrayNotContaining throws for non-arrays', () => {
jestExpect(() => {
arrayNotContaining('foo').asymmetricMatch([]);
}).toThrow();
});
test('ObjectContaining matches', () => {
[
objectContaining({}).asymmetricMatch('jest'),
objectContaining({foo: 'foo'}).asymmetricMatch({foo: 'foo', jest: 'jest'}),
objectContaining({foo: undefined}).asymmetricMatch({foo: undefined}),
objectContaining({foo: {bar: [1]}}).asymmetricMatch({
foo: {bar: [1], qux: []},
}),
objectContaining({first: objectContaining({second: {}})}).asymmetricMatch({
first: {second: {}},
}),
].forEach(test => {
jestExpect(test).toEqual(true);
});
});
test('ObjectContaining does not match', () => {
[
objectContaining({foo: 'foo'}).asymmetricMatch({bar: 'bar'}),
objectContaining({foo: 'foo'}).asymmetricMatch({foo: 'foox'}),
objectContaining({foo: undefined}).asymmetricMatch({}),
].forEach(test => {
jestExpect(test).toEqual(false);
});
});
test('ObjectContaining matches defined properties', () => {
const definedPropertyObject = {};
Object.defineProperty(definedPropertyObject, 'foo', {get: () => 'bar'});
jestExpect(
objectContaining({foo: 'bar'}).asymmetricMatch(definedPropertyObject),
).toBe(true);
});
test('ObjectContaining matches prototype properties', () => {
const prototypeObject = {foo: 'bar'};
let obj;
if (Object.create) {
obj = Object.create(prototypeObject);
} else {
function Foo() {}
Foo.prototype = prototypeObject;
Foo.prototype.constructor = Foo;
obj = new Foo();
}
jestExpect(objectContaining({foo: 'bar'}).asymmetricMatch(obj)).toBe(true);
});
test('ObjectContaining throws for non-objects', () => {
jestExpect(() => objectContaining(1337).asymmetricMatch()).toThrow();
});
test('ObjectNotContaining matches', () => {
[
objectNotContaining({}).asymmetricMatch('jest'),
objectNotContaining({foo: 'foo'}).asymmetricMatch({bar: 'bar'}),
objectNotContaining({foo: 'foo'}).asymmetricMatch({foo: 'foox'}),
objectNotContaining({foo: undefined}).asymmetricMatch({}),
].forEach(test => {
jestExpect(test).toEqual(true);
});
});
test('ObjectNotContaining does not match', () => {
[
objectNotContaining({foo: 'foo'}).asymmetricMatch({
foo: 'foo',
jest: 'jest',
}),
objectNotContaining({foo: undefined}).asymmetricMatch({foo: undefined}),
objectNotContaining({
first: objectNotContaining({second: {}}),
}).asymmetricMatch({first: {second: {}}}),
].forEach(test => {
jestExpect(test).toEqual(false);
});
});
test('ObjectNotContaining throws for non-objects', () => {
jestExpect(() => objectNotContaining(1337).asymmetricMatch()).toThrow();
});
test('StringContaining matches string against string', () => {
jestExpect(stringContaining('en*').asymmetricMatch('queen*')).toBe(true);
jestExpect(stringContaining('en').asymmetricMatch('queue')).toBe(false);
});
test('StringContaining throws if expected value is not string', () => {
jestExpect(() => {
stringContaining([1]).asymmetricMatch('queen');
}).toThrow();
});
test('StringContaining returns false if received value is not string', () => {
jestExpect(stringContaining('en*').asymmetricMatch(1)).toBe(false);
});
test('StringNotContaining matches string against string', () => {
jestExpect(stringNotContaining('en*').asymmetricMatch('queen*')).toBe(false);
jestExpect(stringNotContaining('en').asymmetricMatch('queue')).toBe(true);
});
test('StringNotContaining throws if expected value is not string', () => {
jestExpect(() => {
stringNotContaining([1]).asymmetricMatch('queen');
}).toThrow();
});
test('StringNotContaining returns true if received value is not string', () => {
jestExpect(stringNotContaining('en*').asymmetricMatch(1)).toBe(true);
});
test('StringMatching matches string against regexp', () => {
jestExpect(stringMatching(/en/).asymmetricMatch('queen')).toBe(true);
jestExpect(stringMatching(/en/).asymmetricMatch('queue')).toBe(false);
});
test('StringMatching matches string against string', () => {
jestExpect(stringMatching('en').asymmetricMatch('queen')).toBe(true);
jestExpect(stringMatching('en').asymmetricMatch('queue')).toBe(false);
});
test('StringMatching throws if expected value is neither string nor regexp', () => {
jestExpect(() => {
stringMatching([1]).asymmetricMatch('queen');
}).toThrow();
});
test('StringMatching returns false if received value is not string', () => {
jestExpect(stringMatching('en').asymmetricMatch(1)).toBe(false);
});
test('StringMatching returns false even if coerced non-string received value matches pattern', () => {
jestExpect(stringMatching('null').asymmetricMatch(null)).toBe(false);
});
test('StringNotMatching matches string against regexp', () => {
jestExpect(stringNotMatching(/en/).asymmetricMatch('queen')).toBe(false);
jestExpect(stringNotMatching(/en/).asymmetricMatch('queue')).toBe(true);
});
test('StringNotMatching matches string against string', () => {
jestExpect(stringNotMatching('en').asymmetricMatch('queen')).toBe(false);
jestExpect(stringNotMatching('en').asymmetricMatch('queue')).toBe(true);
});
test('StringNotMatching throws if expected value is neither string nor regexp', () => {
jestExpect(() => {
stringNotMatching([1]).asymmetricMatch('queen');
}).toThrow();
});
test('StringNotMatching returns true if received value is not string', () => {
jestExpect(stringNotMatching('en').asymmetricMatch(1)).toBe(true);
});