setup_jest_globals.js
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'use strict';
Object.defineProperty(exports, '__esModule', {
value: true
});
exports.default = setupJestGlobals;
var _expect = require('expect');
var _jestSnapshot = require('jest-snapshot');
/**
* 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.
*/
// Get suppressed errors form jest-matchers that weren't throw during
// test execution and add them to the test result, potentially failing
// a passing test.
const addSuppressedErrors = result => {
const {suppressedErrors} = (0, _expect.getState)();
(0, _expect.setState)({
suppressedErrors: []
});
if (suppressedErrors.length) {
result.status = 'failed';
result.failedExpectations = suppressedErrors.map(error => ({
actual: '',
// passing error for custom test reporters
error,
expected: '',
matcherName: '',
message: error.message,
passed: false,
stack: error.stack
}));
}
};
const addAssertionErrors = result => {
const assertionErrors = (0, _expect.extractExpectedAssertionsErrors)();
if (assertionErrors.length) {
const jasmineErrors = assertionErrors.map(({actual, error, expected}) => ({
actual,
expected,
message: error.stack,
passed: false
}));
result.status = 'failed';
result.failedExpectations = result.failedExpectations.concat(jasmineErrors);
}
};
const patchJasmine = () => {
global.jasmine.Spec = (realSpec => {
class Spec extends realSpec {
constructor(attr) {
const resultCallback = attr.resultCallback;
attr.resultCallback = function (result) {
addSuppressedErrors(result);
addAssertionErrors(result);
resultCallback.call(attr, result);
};
const onStart = attr.onStart;
attr.onStart = context => {
(0, _expect.setState)({
currentTestName: context.getFullName()
});
onStart && onStart.call(attr, context);
};
super(attr);
}
}
return Spec;
})(global.jasmine.Spec);
};
async function setupJestGlobals({
config,
globalConfig,
localRequire,
testPath
}) {
// Jest tests snapshotSerializers in order preceding built-in serializers.
// Therefore, add in reverse because the last added is the first tested.
config.snapshotSerializers
.concat()
.reverse()
.forEach(path => {
(0, _jestSnapshot.addSerializer)(localRequire(path));
});
patchJasmine();
const {expand, updateSnapshot} = globalConfig;
const {prettierPath, snapshotFormat} = config;
const snapshotResolver = await (0, _jestSnapshot.buildSnapshotResolver)(
config,
localRequire
);
const snapshotPath = snapshotResolver.resolveSnapshotPath(testPath);
const snapshotState = new _jestSnapshot.SnapshotState(snapshotPath, {
expand,
prettierPath,
snapshotFormat,
updateSnapshot
}); // @ts-expect-error: snapshotState is a jest extension of `expect`
(0, _expect.setState)({
snapshotState,
testPath
}); // Return it back to the outer scope (test runner outside the VM).
return snapshotState;
}