@angular/core
Version:
Angular - the core framework
192 lines • 21.8 kB
JavaScript
/**
* @license
* Copyright Google LLC 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 { ɵisPromise as isPromise } from '@angular/core';
import { global } from '@angular/core/src/util/global';
import { AsyncTestCompleter } from './async_test_completer';
import { getTestBed } from './test_bed';
export { AsyncTestCompleter } from './async_test_completer';
export { inject } from './test_bed';
export * from './logger';
export * from './ng_zone_mock';
export const proxy = (t) => t;
const _global = (typeof window === 'undefined' ? global : window);
export const afterEach = _global.afterEach;
export const expect = _global.expect;
const jsmBeforeEach = _global.beforeEach;
const jsmDescribe = _global.describe;
const jsmDDescribe = _global.fdescribe;
const jsmXDescribe = _global.xdescribe;
const jsmIt = _global.it;
const jsmFIt = _global.fit;
const jsmXIt = _global.xit;
const runnerStack = [];
jasmine.DEFAULT_TIMEOUT_INTERVAL = 3000;
const globalTimeOut = jasmine.DEFAULT_TIMEOUT_INTERVAL;
const testBed = getTestBed();
/**
* Mechanism to run `beforeEach()` functions of Angular tests.
*
* Note: Jasmine own `beforeEach` is used by this library to handle DI providers.
*/
class BeforeEachRunner {
constructor(_parent) {
this._parent = _parent;
this._fns = [];
}
beforeEach(fn) {
this._fns.push(fn);
}
run() {
if (this._parent)
this._parent.run();
this._fns.forEach((fn) => {
fn();
});
}
}
// Reset the test providers before each test
jsmBeforeEach(() => {
testBed.resetTestingModule();
});
function _describe(jsmFn, ...args) {
const parentRunner = runnerStack.length === 0 ? null : runnerStack[runnerStack.length - 1];
const runner = new BeforeEachRunner(parentRunner);
runnerStack.push(runner);
const suite = jsmFn(...args);
runnerStack.pop();
return suite;
}
export function describe(...args) {
return _describe(jsmDescribe, ...args);
}
export function ddescribe(...args) {
return _describe(jsmDDescribe, ...args);
}
export function xdescribe(...args) {
return _describe(jsmXDescribe, ...args);
}
export function beforeEach(fn) {
if (runnerStack.length > 0) {
// Inside a describe block, beforeEach() uses a BeforeEachRunner
runnerStack[runnerStack.length - 1].beforeEach(fn);
}
else {
// Top level beforeEach() are delegated to jasmine
jsmBeforeEach(fn);
}
}
/**
* Allows overriding default providers defined in test_injector.js.
*
* The given function must return a list of DI providers.
*
* Example:
*
* beforeEachProviders(() => [
* {provide: Compiler, useClass: MockCompiler},
* {provide: SomeToken, useValue: myValue},
* ]);
*/
export function beforeEachProviders(fn) {
jsmBeforeEach(() => {
const providers = fn();
if (!providers)
return;
testBed.configureTestingModule({ providers: providers });
});
}
function _it(jsmFn, testName, testFn, testTimeout = 0) {
if (runnerStack.length == 0) {
// This left here intentionally, as we should never get here, and it aids debugging.
// tslint:disable-next-line
debugger;
throw new Error('Empty Stack!');
}
const runner = runnerStack[runnerStack.length - 1];
const timeout = Math.max(globalTimeOut, testTimeout);
jsmFn(testName, (done) => {
const completerProvider = {
provide: AsyncTestCompleter,
useFactory: () => {
// Mark the test as async when an AsyncTestCompleter is injected in an it()
return new AsyncTestCompleter();
}
};
testBed.configureTestingModule({ providers: [completerProvider] });
runner.run();
if (testFn.length === 0) {
// TypeScript doesn't infer the TestFn type without parameters here, so we
// need to manually cast it.
const retVal = testFn();
if (isPromise(retVal)) {
// Asynchronous test function that returns a Promise - wait for completion.
retVal.then(done, done.fail);
}
else {
// Synchronous test function - complete immediately.
done();
}
}
else {
// Asynchronous test function that takes in 'done' parameter.
testFn(done);
}
}, timeout);
}
export function it(expectation, assertion, timeout) {
return _it(jsmIt, expectation, assertion, timeout);
}
export function fit(expectation, assertion, timeout) {
return _it(jsmFIt, expectation, assertion, timeout);
}
export function xit(expectation, assertion, timeout) {
return _it(jsmXIt, expectation, assertion, timeout);
}
export class SpyObject {
constructor(type) {
if (type) {
for (const prop in type.prototype) {
let m = null;
try {
m = type.prototype[prop];
}
catch (_a) {
// As we are creating spys for abstract classes,
// these classes might have getters that throw when they are accessed.
// As we are only auto creating spys for methods, this
// should not matter.
}
if (typeof m === 'function') {
this.spy(prop);
}
}
}
}
spy(name) {
if (!this[name]) {
this[name] = jasmine.createSpy(name);
}
return this[name];
}
prop(name, value) {
this[name] = value;
}
static stub(object = null, config = null, overrides = null) {
if (!(object instanceof SpyObject)) {
overrides = config;
config = object;
object = new SpyObject();
}
const m = Object.assign(Object.assign({}, config), overrides);
Object.keys(m).forEach(key => {
object.spy(key).and.returnValue(m[key]);
});
return object;
}
}
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* @license\n * Copyright Google LLC All Rights Reserved.\n *\n * Use of this source code is governed by an MIT-style license that can be\n * found in the LICENSE file at https://angular.io/license\n */\n\nimport {ɵisPromise as isPromise} from '@angular/core';\nimport {global} from '@angular/core/src/util/global';\n\nimport {AsyncTestCompleter} from './async_test_completer';\nimport {getTestBed, inject} from './test_bed';\n\nexport {AsyncTestCompleter} from './async_test_completer';\nexport {inject} from './test_bed';\n\nexport * from './logger';\nexport * from './ng_zone_mock';\n\nexport const proxy: ClassDecorator = (t: any) => t;\n\nconst _global = <any>(typeof window === 'undefined' ? global : window);\n\nexport const afterEach: Function = _global.afterEach;\nexport const expect: <T>(actual: T) => jasmine.Matchers<T> = _global.expect;\n\nconst jsmBeforeEach = _global.beforeEach;\nconst jsmDescribe = _global.describe;\nconst jsmDDescribe = _global.fdescribe;\nconst jsmXDescribe = _global.xdescribe;\nconst jsmIt = _global.it;\nconst jsmFIt = _global.fit;\nconst jsmXIt = _global.xit;\n\nconst runnerStack: BeforeEachRunner[] = [];\njasmine.DEFAULT_TIMEOUT_INTERVAL = 3000;\nconst globalTimeOut = jasmine.DEFAULT_TIMEOUT_INTERVAL;\n\nconst testBed = getTestBed();\n\nexport type TestFn = ((done: DoneFn) => any)|(() => any);\n\n/**\n * Mechanism to run `beforeEach()` functions of Angular tests.\n *\n * Note: Jasmine own `beforeEach` is used by this library to handle DI providers.\n */\nclass BeforeEachRunner {\n  private _fns: Array<Function> = [];\n\n  constructor(private _parent: BeforeEachRunner) {}\n\n  beforeEach(fn: Function): void {\n    this._fns.push(fn);\n  }\n\n  run(): void {\n    if (this._parent) this._parent.run();\n    this._fns.forEach((fn) => {\n      fn();\n    });\n  }\n}\n\n// Reset the test providers before each test\njsmBeforeEach(() => {\n  testBed.resetTestingModule();\n});\n\nfunction _describe(jsmFn: Function, ...args: any[]) {\n  const parentRunner = runnerStack.length === 0 ? null : runnerStack[runnerStack.length - 1];\n  const runner = new BeforeEachRunner(parentRunner!);\n  runnerStack.push(runner);\n  const suite = jsmFn(...args);\n  runnerStack.pop();\n  return suite;\n}\n\nexport function describe(...args: any[]): void {\n  return _describe(jsmDescribe, ...args);\n}\n\nexport function ddescribe(...args: any[]): void {\n  return _describe(jsmDDescribe, ...args);\n}\n\nexport function xdescribe(...args: any[]): void {\n  return _describe(jsmXDescribe, ...args);\n}\n\nexport function beforeEach(fn: Function): void {\n  if (runnerStack.length > 0) {\n    // Inside a describe block, beforeEach() uses a BeforeEachRunner\n    runnerStack[runnerStack.length - 1].beforeEach(fn);\n  } else {\n    // Top level beforeEach() are delegated to jasmine\n    jsmBeforeEach(fn);\n  }\n}\n\n/**\n * Allows overriding default providers defined in test_injector.js.\n *\n * The given function must return a list of DI providers.\n *\n * Example:\n *\n *   beforeEachProviders(() => [\n *     {provide: Compiler, useClass: MockCompiler},\n *     {provide: SomeToken, useValue: myValue},\n *   ]);\n */\nexport function beforeEachProviders(fn: Function): void {\n  jsmBeforeEach(() => {\n    const providers = fn();\n    if (!providers) return;\n    testBed.configureTestingModule({providers: providers});\n  });\n}\n\n\nfunction _it(jsmFn: Function, testName: string, testFn: TestFn, testTimeout = 0): void {\n  if (runnerStack.length == 0) {\n    // This left here intentionally, as we should never get here, and it aids debugging.\n    // tslint:disable-next-line\n    debugger;\n    throw new Error('Empty Stack!');\n  }\n  const runner = runnerStack[runnerStack.length - 1];\n  const timeout = Math.max(globalTimeOut, testTimeout);\n\n  jsmFn(testName, (done: DoneFn) => {\n    const completerProvider = {\n      provide: AsyncTestCompleter,\n      useFactory: () => {\n        // Mark the test as async when an AsyncTestCompleter is injected in an it()\n        return new AsyncTestCompleter();\n      }\n    };\n    testBed.configureTestingModule({providers: [completerProvider]});\n    runner.run();\n\n    if (testFn.length === 0) {\n      // TypeScript doesn't infer the TestFn type without parameters here, so we\n      // need to manually cast it.\n      const retVal = (testFn as () => any)();\n      if (isPromise(retVal)) {\n        // Asynchronous test function that returns a Promise - wait for completion.\n        retVal.then(done, done.fail);\n      } else {\n        // Synchronous test function - complete immediately.\n        done();\n      }\n    } else {\n      // Asynchronous test function that takes in 'done' parameter.\n      testFn(done);\n    }\n  }, timeout);\n}\n\nexport function it(expectation: string, assertion: TestFn, timeout?: number): void {\n  return _it(jsmIt, expectation, assertion, timeout);\n}\n\nexport function fit(expectation: string, assertion: TestFn, timeout?: number): void {\n  return _it(jsmFIt, expectation, assertion, timeout);\n}\n\nexport function xit(expectation: string, assertion: TestFn, timeout?: number): void {\n  return _it(jsmXIt, expectation, assertion, timeout);\n}\n\nexport class SpyObject {\n  constructor(type?: any) {\n    if (type) {\n      for (const prop in type.prototype) {\n        let m: any = null;\n        try {\n          m = type.prototype[prop];\n        } catch {\n          // As we are creating spys for abstract classes,\n          // these classes might have getters that throw when they are accessed.\n          // As we are only auto creating spys for methods, this\n          // should not matter.\n        }\n        if (typeof m === 'function') {\n          this.spy(prop);\n        }\n      }\n    }\n  }\n\n  spy(name: string) {\n    if (!(this as any)[name]) {\n      (this as any)[name] = jasmine.createSpy(name);\n    }\n    return (this as any)[name];\n  }\n\n  prop(name: string, value: any) {\n    (this as any)[name] = value;\n  }\n\n  static stub(object: any = null, config: any = null, overrides: any = null) {\n    if (!(object instanceof SpyObject)) {\n      overrides = config;\n      config = object;\n      object = new SpyObject();\n    }\n\n    const m = {...config, ...overrides};\n    Object.keys(m).forEach(key => {\n      object.spy(key).and.returnValue(m[key]);\n    });\n    return object;\n  }\n}\n"]}