angular-docs-cn/packages/core/test/render3/perfCounter_spec.ts

47 lines
1.3 KiB
TypeScript

/**
* @license
* Copyright Google Inc. All Rights Reserved.
*
* Use of this source code is governed by an MIT-style license that can be
* found in the LICENSE file at https://angular.io/license
*/
import {ngDevModeResetPerfCounters} from '../../src/render3/ng_dev_mode';
beforeEach(ngDevModeResetPerfCounters);
beforeEach(() => {
jasmine.addMatchers({
toHaveProperties: function(util, customEqualityTesters) {
return {compare: toHavePropertiesCompare};
}
});
});
function toHavePropertiesCompare(actual: any, expected: any) {
let pass = true;
let errors = [];
for (let key of Object.keys(actual)) {
if (expected.hasOwnProperty(key)) {
if (actual[key] !== expected[key]) {
pass = false;
errors.push(`Expected '${key}' to be '${expected[key]}' but was '${actual[key]}'.`);
}
}
}
return {pass: pass, message: errors.join('\n')};
}
describe('toHaveProperties', () => {
it('should pass', () => {
expect({tNode: 1}).toHaveProperties({});
expect({tNode: 2}).toHaveProperties({tNode: 2});
});
it('should fail', () => {
expect(toHavePropertiesCompare({tNode: 2, tView: 4}, {tNode: 3, tView: 5})).toEqual({
pass: false,
message:
'Expected \'tNode\' to be \'3\' but was \'2\'.\nExpected \'tView\' to be \'5\' but was \'4\'.'
});
});
});