You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
435 lines
12 KiB
435 lines
12 KiB
'use strict';
|
|
|
|
var matcherUtils = _interopRequireWildcard(require('jest-matcher-utils'));
|
|
|
|
var _utils = require('./utils');
|
|
|
|
var _matchers = _interopRequireDefault(require('./matchers'));
|
|
|
|
var _spyMatchers = _interopRequireDefault(require('./spyMatchers'));
|
|
|
|
var _toThrowMatchers = _interopRequireWildcard(require('./toThrowMatchers'));
|
|
|
|
var _jasmineUtils = require('./jasmineUtils');
|
|
|
|
var _asymmetricMatchers = require('./asymmetricMatchers');
|
|
|
|
var _jestMatchersObject = require('./jestMatchersObject');
|
|
|
|
var _extractExpectedAssertionsErrors = _interopRequireDefault(
|
|
require('./extractExpectedAssertionsErrors')
|
|
);
|
|
|
|
function _interopRequireDefault(obj) {
|
|
return obj && obj.__esModule ? obj : {default: obj};
|
|
}
|
|
|
|
function _interopRequireWildcard(obj) {
|
|
if (obj && obj.__esModule) {
|
|
return obj;
|
|
} else {
|
|
var newObj = {};
|
|
if (obj != null) {
|
|
for (var key in obj) {
|
|
if (Object.prototype.hasOwnProperty.call(obj, key)) {
|
|
var desc =
|
|
Object.defineProperty && Object.getOwnPropertyDescriptor
|
|
? Object.getOwnPropertyDescriptor(obj, key)
|
|
: {};
|
|
if (desc.get || desc.set) {
|
|
Object.defineProperty(newObj, key, desc);
|
|
} else {
|
|
newObj[key] = obj[key];
|
|
}
|
|
}
|
|
}
|
|
}
|
|
newObj.default = obj;
|
|
return newObj;
|
|
}
|
|
}
|
|
|
|
var Symbol = global['jest-symbol-do-not-touch'] || global.Symbol;
|
|
|
|
function _objectSpread(target) {
|
|
for (var i = 1; i < arguments.length; i++) {
|
|
var source = arguments[i] != null ? arguments[i] : {};
|
|
var ownKeys = Object.keys(source);
|
|
if (typeof Object.getOwnPropertySymbols === 'function') {
|
|
ownKeys = ownKeys.concat(
|
|
Object.getOwnPropertySymbols(source).filter(function(sym) {
|
|
return Object.getOwnPropertyDescriptor(source, sym).enumerable;
|
|
})
|
|
);
|
|
}
|
|
ownKeys.forEach(function(key) {
|
|
_defineProperty(target, key, source[key]);
|
|
});
|
|
}
|
|
return target;
|
|
}
|
|
|
|
var Symbol = global['jest-symbol-do-not-touch'] || global.Symbol;
|
|
var Promise = global[Symbol.for('jest-native-promise')] || global.Promise;
|
|
|
|
function _defineProperty(obj, key, value) {
|
|
if (key in obj) {
|
|
Object.defineProperty(obj, key, {
|
|
value: value,
|
|
enumerable: true,
|
|
configurable: true,
|
|
writable: true
|
|
});
|
|
} else {
|
|
obj[key] = value;
|
|
}
|
|
return obj;
|
|
}
|
|
|
|
class JestAssertionError extends Error {
|
|
constructor(...args) {
|
|
super(...args);
|
|
|
|
_defineProperty(this, 'matcherResult', void 0);
|
|
}
|
|
}
|
|
|
|
const isPromise = obj =>
|
|
!!obj &&
|
|
(typeof obj === 'object' || typeof obj === 'function') &&
|
|
typeof obj.then === 'function';
|
|
|
|
const createToThrowErrorMatchingSnapshotMatcher = function createToThrowErrorMatchingSnapshotMatcher(
|
|
matcher
|
|
) {
|
|
return function(received, testNameOrInlineSnapshot) {
|
|
return matcher.apply(this, [received, testNameOrInlineSnapshot, true]);
|
|
};
|
|
};
|
|
|
|
const getPromiseMatcher = (name, matcher) => {
|
|
if (name === 'toThrow' || name === 'toThrowError') {
|
|
return (0, _toThrowMatchers.createMatcher)(name, true);
|
|
} else if (
|
|
name === 'toThrowErrorMatchingSnapshot' ||
|
|
name === 'toThrowErrorMatchingInlineSnapshot'
|
|
) {
|
|
return createToThrowErrorMatchingSnapshotMatcher(matcher);
|
|
}
|
|
|
|
return null;
|
|
};
|
|
|
|
const expect = (actual, ...rest) => {
|
|
if (rest.length !== 0) {
|
|
throw new Error('Expect takes at most one argument.');
|
|
}
|
|
|
|
const allMatchers = (0, _jestMatchersObject.getMatchers)();
|
|
const expectation = {
|
|
not: {},
|
|
rejects: {
|
|
not: {}
|
|
},
|
|
resolves: {
|
|
not: {}
|
|
}
|
|
};
|
|
const err = new JestAssertionError();
|
|
Object.keys(allMatchers).forEach(name => {
|
|
const matcher = allMatchers[name];
|
|
const promiseMatcher = getPromiseMatcher(name, matcher) || matcher;
|
|
expectation[name] = makeThrowingMatcher(matcher, false, '', actual);
|
|
expectation.not[name] = makeThrowingMatcher(matcher, true, '', actual);
|
|
expectation.resolves[name] = makeResolveMatcher(
|
|
name,
|
|
promiseMatcher,
|
|
false,
|
|
actual,
|
|
err
|
|
);
|
|
expectation.resolves.not[name] = makeResolveMatcher(
|
|
name,
|
|
promiseMatcher,
|
|
true,
|
|
actual,
|
|
err
|
|
);
|
|
expectation.rejects[name] = makeRejectMatcher(
|
|
name,
|
|
promiseMatcher,
|
|
false,
|
|
actual,
|
|
err
|
|
);
|
|
expectation.rejects.not[name] = makeRejectMatcher(
|
|
name,
|
|
promiseMatcher,
|
|
true,
|
|
actual,
|
|
err
|
|
);
|
|
});
|
|
return expectation;
|
|
};
|
|
|
|
const getMessage = message =>
|
|
(message && message()) ||
|
|
matcherUtils.RECEIVED_COLOR('No message was specified for this matcher.');
|
|
|
|
const makeResolveMatcher = (matcherName, matcher, isNot, actual, outerErr) => (
|
|
...args
|
|
) => {
|
|
const options = {
|
|
isNot,
|
|
promise: 'resolves'
|
|
};
|
|
|
|
if (!isPromise(actual)) {
|
|
throw new JestAssertionError(
|
|
matcherUtils.matcherErrorMessage(
|
|
matcherUtils.matcherHint(matcherName, undefined, '', options),
|
|
`${matcherUtils.RECEIVED_COLOR('received')} value must be a promise`,
|
|
matcherUtils.printWithType(
|
|
'Received',
|
|
actual,
|
|
matcherUtils.printReceived
|
|
)
|
|
)
|
|
);
|
|
}
|
|
|
|
const innerErr = new JestAssertionError();
|
|
return actual.then(
|
|
result =>
|
|
makeThrowingMatcher(matcher, isNot, 'resolves', result, innerErr).apply(
|
|
null,
|
|
args
|
|
),
|
|
reason => {
|
|
outerErr.message =
|
|
matcherUtils.matcherHint(matcherName, undefined, '', options) +
|
|
'\n\n' +
|
|
`Received promise rejected instead of resolved\n` +
|
|
`Rejected to value: ${matcherUtils.printReceived(reason)}`;
|
|
return Promise.reject(outerErr);
|
|
}
|
|
);
|
|
};
|
|
|
|
const makeRejectMatcher = (matcherName, matcher, isNot, actual, outerErr) => (
|
|
...args
|
|
) => {
|
|
const options = {
|
|
isNot,
|
|
promise: 'rejects'
|
|
};
|
|
|
|
if (!isPromise(actual)) {
|
|
throw new JestAssertionError(
|
|
matcherUtils.matcherErrorMessage(
|
|
matcherUtils.matcherHint(matcherName, undefined, '', options),
|
|
`${matcherUtils.RECEIVED_COLOR('received')} value must be a promise`,
|
|
matcherUtils.printWithType(
|
|
'Received',
|
|
actual,
|
|
matcherUtils.printReceived
|
|
)
|
|
)
|
|
);
|
|
}
|
|
|
|
const innerErr = new JestAssertionError();
|
|
return actual.then(
|
|
result => {
|
|
outerErr.message =
|
|
matcherUtils.matcherHint(matcherName, undefined, '', options) +
|
|
'\n\n' +
|
|
`Received promise resolved instead of rejected\n` +
|
|
`Resolved to value: ${matcherUtils.printReceived(result)}`;
|
|
return Promise.reject(outerErr);
|
|
},
|
|
reason =>
|
|
makeThrowingMatcher(matcher, isNot, 'rejects', reason, innerErr).apply(
|
|
null,
|
|
args
|
|
)
|
|
);
|
|
};
|
|
|
|
const makeThrowingMatcher = (matcher, isNot, promise, actual, err) =>
|
|
function throwingMatcher(...args) {
|
|
let throws = true;
|
|
|
|
const utils = _objectSpread({}, matcherUtils, {
|
|
iterableEquality: _utils.iterableEquality,
|
|
subsetEquality: _utils.subsetEquality
|
|
});
|
|
|
|
const matcherContext = _objectSpread(
|
|
{
|
|
// When throws is disabled, the matcher will not throw errors during test
|
|
// execution but instead add them to the global matcher state. If a
|
|
// matcher throws, test execution is normally stopped immediately. The
|
|
// snapshot matcher uses it because we want to log all snapshot
|
|
// failures in a test.
|
|
dontThrow: () => (throws = false)
|
|
},
|
|
(0, _jestMatchersObject.getState)(),
|
|
{
|
|
equals: _jasmineUtils.equals,
|
|
error: err,
|
|
isNot,
|
|
promise,
|
|
utils
|
|
}
|
|
);
|
|
|
|
const processResult = (result, asyncError) => {
|
|
_validateResult(result);
|
|
|
|
(0, _jestMatchersObject.getState)().assertionCalls++;
|
|
|
|
if ((result.pass && isNot) || (!result.pass && !isNot)) {
|
|
// XOR
|
|
const message = getMessage(result.message);
|
|
let error;
|
|
|
|
if (err) {
|
|
error = err;
|
|
error.message = message;
|
|
} else if (asyncError) {
|
|
error = asyncError;
|
|
error.message = message;
|
|
} else {
|
|
error = new JestAssertionError(message); // Try to remove this function from the stack trace frame.
|
|
// Guard for some environments (browsers) that do not support this feature.
|
|
|
|
if (Error.captureStackTrace) {
|
|
Error.captureStackTrace(error, throwingMatcher);
|
|
}
|
|
} // Passing the result of the matcher with the error so that a custom
|
|
// reporter could access the actual and expected objects of the result
|
|
// for example in order to display a custom visual diff
|
|
|
|
error.matcherResult = result;
|
|
|
|
if (throws) {
|
|
throw error;
|
|
} else {
|
|
(0, _jestMatchersObject.getState)().suppressedErrors.push(error);
|
|
}
|
|
}
|
|
};
|
|
|
|
const handlError = error => {
|
|
if (
|
|
matcher[_jestMatchersObject.INTERNAL_MATCHER_FLAG] === true &&
|
|
!(error instanceof JestAssertionError) &&
|
|
error.name !== 'PrettyFormatPluginError' && // Guard for some environments (browsers) that do not support this feature.
|
|
Error.captureStackTrace
|
|
) {
|
|
// Try to remove this and deeper functions from the stack trace frame.
|
|
Error.captureStackTrace(error, throwingMatcher);
|
|
}
|
|
|
|
throw error;
|
|
};
|
|
|
|
let potentialResult;
|
|
|
|
try {
|
|
potentialResult = matcher.call(matcherContext, actual, ...args);
|
|
|
|
if (isPromise(potentialResult)) {
|
|
const asyncResult = potentialResult;
|
|
const asyncError = new JestAssertionError();
|
|
|
|
if (Error.captureStackTrace) {
|
|
Error.captureStackTrace(asyncError, throwingMatcher);
|
|
}
|
|
|
|
return asyncResult
|
|
.then(aResult => processResult(aResult, asyncError))
|
|
.catch(error => handlError(error));
|
|
} else {
|
|
const syncResult = potentialResult;
|
|
return processResult(syncResult);
|
|
}
|
|
} catch (error) {
|
|
return handlError(error);
|
|
}
|
|
};
|
|
|
|
expect.extend = matchers =>
|
|
(0, _jestMatchersObject.setMatchers)(matchers, false, expect);
|
|
|
|
expect.anything = _asymmetricMatchers.anything;
|
|
expect.any = _asymmetricMatchers.any;
|
|
expect.not = {
|
|
arrayContaining: _asymmetricMatchers.arrayNotContaining,
|
|
objectContaining: _asymmetricMatchers.objectNotContaining,
|
|
stringContaining: _asymmetricMatchers.stringNotContaining,
|
|
stringMatching: _asymmetricMatchers.stringNotMatching
|
|
};
|
|
expect.objectContaining = _asymmetricMatchers.objectContaining;
|
|
expect.arrayContaining = _asymmetricMatchers.arrayContaining;
|
|
expect.stringContaining = _asymmetricMatchers.stringContaining;
|
|
expect.stringMatching = _asymmetricMatchers.stringMatching;
|
|
|
|
const _validateResult = result => {
|
|
if (
|
|
typeof result !== 'object' ||
|
|
typeof result.pass !== 'boolean' ||
|
|
(result.message &&
|
|
typeof result.message !== 'string' &&
|
|
typeof result.message !== 'function')
|
|
) {
|
|
throw new Error(
|
|
'Unexpected return from a matcher function.\n' +
|
|
'Matcher functions should ' +
|
|
'return an object in the following format:\n' +
|
|
' {message?: string | function, pass: boolean}\n' +
|
|
`'${matcherUtils.stringify(result)}' was returned`
|
|
);
|
|
}
|
|
};
|
|
|
|
function assertions(expected) {
|
|
const error = new Error();
|
|
|
|
if (Error.captureStackTrace) {
|
|
Error.captureStackTrace(error, assertions);
|
|
}
|
|
|
|
(0, _jestMatchersObject.getState)().expectedAssertionsNumber = expected;
|
|
(0, _jestMatchersObject.getState)().expectedAssertionsNumberError = error;
|
|
}
|
|
|
|
function hasAssertions(...args) {
|
|
const error = new Error();
|
|
|
|
if (Error.captureStackTrace) {
|
|
Error.captureStackTrace(error, hasAssertions);
|
|
}
|
|
|
|
matcherUtils.ensureNoExpected(args[0], '.hasAssertions');
|
|
(0, _jestMatchersObject.getState)().isExpectingAssertions = true;
|
|
(0, _jestMatchersObject.getState)().isExpectingAssertionsError = error;
|
|
} // add default jest matchers
|
|
|
|
(0, _jestMatchersObject.setMatchers)(_matchers.default, true, expect);
|
|
(0, _jestMatchersObject.setMatchers)(_spyMatchers.default, true, expect);
|
|
(0, _jestMatchersObject.setMatchers)(_toThrowMatchers.default, true, expect);
|
|
|
|
expect.addSnapshotSerializer = () => void 0;
|
|
|
|
expect.assertions = assertions;
|
|
expect.hasAssertions = hasAssertions;
|
|
expect.getState = _jestMatchersObject.getState;
|
|
expect.setState = _jestMatchersObject.setState;
|
|
expect.extractExpectedAssertionsErrors =
|
|
_extractExpectedAssertionsErrors.default;
|
|
const expectExport = expect; // eslint-disable-next-line no-redeclare
|
|
|
|
module.exports = expectExport;
|
|
|