522 lines
13 KiB
TypeScript
522 lines
13 KiB
TypeScript
/**
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* @license
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* Copyright Google Inc. All Rights Reserved.
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*
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* Use of this source code is governed by an MIT-style license that can be
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* found in the LICENSE file at https://angular.io/license
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*/
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import * as chai from 'chai';
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import * as ts from 'typescript';
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import {SerializationOptions, publicApiInternal} from '../lib/serializer';
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const classesAndInterfaces = `
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export declare class A {
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field: string;
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method(a: string): number;
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}
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export interface B {
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field: A;
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}
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export declare class C {
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someProp: string;
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propWithDefault: number;
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private privateProp;
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protected protectedProp: number;
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constructor(someProp: string, propWithDefault: number, privateProp: any, protectedProp: number);
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}
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`;
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describe('unit test', () => {
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let _warn: any = null;
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let warnings: string[] = [];
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beforeEach(() => {
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_warn = console.warn;
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console.warn = (...args: string[]) => warnings.push(args.join(' '));
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});
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afterEach(() => {
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console.warn = _warn;
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warnings = [];
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_warn = null;
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});
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it('should ignore private methods', () => {
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const input = `
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export declare class A {
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fa(): void;
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protected fb(): void;
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private fc();
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}
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`;
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const expected = `
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export declare class A {
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fa(): void;
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protected fb(): void;
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}
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`;
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check({'file.d.ts': input}, expected);
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});
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it('should support overloads functions', () => {
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const input = `
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export declare function group(steps: AnimationMetadata[], options?: AnimationOptions | null): AnimationGroupMetadata;
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export declare function registerLocaleData(data: any, extraData?: any): void;
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export declare function registerLocaleData(data: any, localeId?: string, extraData?: any): void;
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`;
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const expected = `
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export declare function group(steps: AnimationMetadata[], options?: AnimationOptions | null): AnimationGroupMetadata;
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export declare function registerLocaleData(data: any, extraData?: any): void;
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export declare function registerLocaleData(data: any, localeId?: string, extraData?: any): void;
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`;
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check({'file.d.ts': input}, expected);
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});
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it('should ignore private props', () => {
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const input = `
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export declare class A {
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fa: any;
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protected fb: any;
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private fc;
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}
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`;
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const expected = `
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export declare class A {
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fa: any;
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protected fb: any;
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}
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`;
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check({'file.d.ts': input}, expected);
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});
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it('should support imports without capturing imports', () => {
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const input = `
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import {A} from './classes_and_interfaces';
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export declare class C {
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field: A;
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}
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`;
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const expected = `
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export declare class C {
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field: A;
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}
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`;
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check({'classes_and_interfaces.d.ts': classesAndInterfaces, 'file.d.ts': input}, expected);
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});
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it('should throw on aliased reexports', () => {
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const input = `
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export { A as Apple } from './classes_and_interfaces';
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`;
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checkThrows(
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{'classes_and_interfaces.d.ts': classesAndInterfaces, 'file.d.ts': input},
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'Symbol "A" was aliased as "Apple". Aliases are not supported.');
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});
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it('should remove reexported external symbols', () => {
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const input = `
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export { Foo } from 'some-external-module-that-cannot-be-resolved';
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`;
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const expected = `
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`;
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check({'classes_and_interfaces.d.ts': classesAndInterfaces, 'file.d.ts': input}, expected);
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chai.assert.deepEqual(
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warnings, ['file.d.ts(1,1): error: No export declaration found for symbol "Foo"']);
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});
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it('should sort exports', () => {
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const input = `
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export declare type E = string;
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export interface D {
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e: number;
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}
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export declare var e: C;
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export declare class C {
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e: number;
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d: string;
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}
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export declare function b(): boolean;
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export declare const a: string;
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`;
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const expected = `
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export declare const a: string;
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export declare function b(): boolean;
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export declare class C {
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d: string;
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e: number;
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}
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export interface D {
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e: number;
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}
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export declare var e: C;
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export declare type E = string;
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`;
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check({'file.d.ts': input}, expected);
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});
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it('should sort class members', () => {
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const input = `
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export class A {
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f: number;
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static foo(): void;
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c: string;
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static a: boolean;
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constructor();
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static bar(): void;
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}
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`;
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const expected = `
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export class A {
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c: string;
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f: number;
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constructor();
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static a: boolean;
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static bar(): void;
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static foo(): void;
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}
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`;
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check({'file.d.ts': input}, expected);
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});
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it('should sort interface members', () => {
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const input = `
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export interface A {
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(): void;
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[key: string]: any;
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c(): void;
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a: number;
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new (): Object;
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}
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`;
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const expected = `
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export interface A {
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a: number;
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(): void;
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new (): Object;
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[key: string]: any;
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c(): void;
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}
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`;
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check({'file.d.ts': input}, expected);
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});
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it('should sort class members including readonly', () => {
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const input = `
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export declare class DebugNode {
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private _debugContext;
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nativeNode: any;
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listeners: any[];
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parent: any | null;
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constructor(nativeNode: any, parent: DebugNode | null, _debugContext: any);
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readonly injector: any;
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readonly componentInstance: any;
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readonly context: any;
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readonly references: {
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[key: string]: any;
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};
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readonly providerTokens: any[];
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}
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`;
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const expected = `
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export declare class DebugNode {
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readonly componentInstance: any;
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readonly context: any;
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readonly injector: any;
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listeners: any[];
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nativeNode: any;
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parent: any | null;
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readonly providerTokens: any[];
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readonly references: {
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[key: string]: any;
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};
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constructor(nativeNode: any, parent: DebugNode | null, _debugContext: any);
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}
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`;
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check({'file.d.ts': input}, expected);
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});
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it('should sort two call signatures', () => {
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const input = `
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export interface A {
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(b: number): void;
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(a: number): void;
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}
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`;
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const expected = `
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export interface A {
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(a: number): void;
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(b: number): void;
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}
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`;
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check({'file.d.ts': input}, expected);
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});
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it('should sort exports including re-exports', () => {
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const submodule = `
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export declare var e: C;
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export declare class C {
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e: number;
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d: string;
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}
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`;
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const input = `
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export * from './submodule';
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export declare type E = string;
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export interface D {
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e: number;
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}
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export declare function b(): boolean;
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export declare const a: string;
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`;
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const expected = `
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export declare const a: string;
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export declare function b(): boolean;
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export declare class C {
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d: string;
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e: number;
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}
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export interface D {
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e: number;
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}
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export declare var e: C;
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export declare type E = string;
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`;
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check({'submodule.d.ts': submodule, 'file.d.ts': input}, expected);
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});
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it('should remove module comments', () => {
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const input = `
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/**
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* An amazing module.
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* @module
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*/
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/**
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* Foo function.
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*/
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export declare function foo(): boolean;
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export declare const bar: number;
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`;
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const expected = `
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export declare const bar: number;
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export declare function foo(): boolean;
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`;
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check({'file.d.ts': input}, expected);
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});
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it('should remove class and field comments', () => {
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const input = `
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/**
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* Does something really cool.
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*/
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export declare class A {
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/**
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* A very interesting getter.
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*/
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b: string;
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/**
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* A very useful field.
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*/
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name: string;
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}
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`;
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const expected = `
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export declare class A {
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b: string;
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name: string;
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}
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`;
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check({'file.d.ts': input}, expected);
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});
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it('should skip symbols matching specified pattern', () => {
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const input = `
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export const __a__: string;
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export class B {
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}
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`;
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const expected = `
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export class B {
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}
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`;
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check({'file.d.ts': input}, expected, {stripExportPattern: /^__.*/});
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});
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it('should throw on using non-whitelisted module imports in expression position', () => {
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const input = `
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import * as foo from './foo';
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export declare class A extends foo.A {
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}
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`;
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checkThrows(
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{'file.d.ts': input}, 'file.d.ts(2,32): error: Module identifier "foo" is not allowed. ' +
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'Remove it from source or whitelist it via --allowModuleIdentifiers.');
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});
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it('should throw on using non-whitelisted module imports in type position', () => {
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const input = `
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import * as foo from './foo';
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export type A = foo.A;
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`;
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checkThrows(
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{'file.d.ts': input}, 'file.d.ts(2,17): error: Module identifier "foo" is not allowed. ' +
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'Remove it from source or whitelist it via --allowModuleIdentifiers.');
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});
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it('should not throw on using whitelisted module imports', () => {
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const input = `
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import * as foo from './foo';
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export declare class A extends foo.A {
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}
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`;
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const expected = `
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export declare class A extends foo.A {
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}
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`;
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check({'file.d.ts': input}, expected, {allowModuleIdentifiers: ['foo']});
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});
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it('should not throw if non-whitelisted module imports are not written', () => {
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const input = `
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import * as foo from './foo';
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export declare class A {
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}
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`;
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const expected = `
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export declare class A {
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}
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`;
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check({'file.d.ts': input}, expected);
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});
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it('should keep stability annotations of exports in docstrings', () => {
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const input = `
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/**
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* @deprecated This is useless now
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*/
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export declare class A {
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}
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/**
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* @experimental
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*/
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export declare const b: string;
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/**
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* @stable
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*/
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export declare var c: number;
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`;
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const expected = `
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/** @deprecated */
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export declare class A {
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}
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/** @experimental */
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export declare const b: string;
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/** @stable */
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export declare var c: number;
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`;
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check({'file.d.ts': input}, expected);
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});
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it('should keep stability annotations of fields in docstrings', () => {
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const input = `
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export declare class A {
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/**
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* @stable
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*/
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value: number;
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/**
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* @experimental
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*/
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constructor();
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/**
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* @deprecated
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*/
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foo(): void;
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}
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`;
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const expected = `
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export declare class A {
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/** @stable */ value: number;
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/** @experimental */ constructor();
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/** @deprecated */ foo(): void;
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}
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`;
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check({'file.d.ts': input}, expected);
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});
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it('should warn on onStabilityMissing: warn', () => {
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const input = `
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export declare class A {
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constructor();
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}
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`;
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const expected = `
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export declare class A {
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constructor();
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}
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`;
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check({'file.d.ts': input}, expected, {onStabilityMissing: 'warn'});
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chai.assert.deepEqual(
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warnings, ['file.d.ts(1,1): error: No stability annotation found for symbol "A"']);
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});
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});
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function getMockHost(files: {[name: string]: string}): ts.CompilerHost {
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return {
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getSourceFile: (sourceName, languageVersion) => {
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if (!files[sourceName]) return undefined;
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return ts.createSourceFile(
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sourceName, stripExtraIndentation(files[sourceName]), languageVersion, true);
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},
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writeFile: (name, text, writeByteOrderMark) => {},
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fileExists: (filename) => !!files[filename],
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readFile: (filename) => stripExtraIndentation(files[filename]),
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getDefaultLibFileName: () => 'lib.ts',
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useCaseSensitiveFileNames: () => true,
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getCanonicalFileName: (filename) => filename,
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getCurrentDirectory: () => './',
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getNewLine: () => '\n',
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getDirectories: () => []
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};
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}
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function check(
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files: {[name: string]: string}, expected: string, options: SerializationOptions = {}) {
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const actual = publicApiInternal(getMockHost(files), 'file.d.ts', {}, options);
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chai.assert.equal(actual.trim(), stripExtraIndentation(expected).trim());
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}
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function checkThrows(files: {[name: string]: string}, error: string) {
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chai.assert.throws(() => { publicApiInternal(getMockHost(files), 'file.d.ts', {}); }, error);
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}
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function stripExtraIndentation(text: string) {
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let lines = text.split('\n');
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// Ignore first and last new line
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lines = lines.slice(1, lines.length - 1);
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const commonIndent = lines.reduce((min, line) => {
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const indent = /^( *)/.exec(line) ![1].length;
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// Ignore empty line
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return line.length ? Math.min(min, indent) : min;
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}, text.length);
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return lines.map(line => line.substr(commonIndent)).join('\n') + '\n';
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}
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