448 lines
15 KiB
TypeScript
448 lines
15 KiB
TypeScript
import * as ts from 'typescript';
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import {MetadataCollector} from '../src/collector';
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import {ClassMetadata, ModuleMetadata} from '../src/schema';
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import {Directory, expectValidSources, Host} from './typescript.mocks';
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describe('Collector', () => {
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let host: ts.LanguageServiceHost;
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let service: ts.LanguageService;
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let program: ts.Program;
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let typeChecker: ts.TypeChecker;
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let collector: MetadataCollector;
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beforeEach(() => {
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host = new Host(
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FILES,
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['/app/app.component.ts', '/app/cases-data.ts', '/app/cases-no-data.ts', '/promise.ts']);
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service = ts.createLanguageService(host);
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program = service.getProgram();
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typeChecker = program.getTypeChecker();
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collector = new MetadataCollector();
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});
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it('should not have errors in test data', () => { expectValidSources(service, program); });
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it('should return undefined for modules that have no metadata', () => {
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const sourceFile = program.getSourceFile('app/hero.ts');
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const metadata = collector.getMetadata(sourceFile, typeChecker);
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expect(metadata).toBeUndefined();
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});
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it('should be able to collect import statements', () => {
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const sourceFile = program.getSourceFile('app/app.component.ts');
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expect(collector.collectImports(sourceFile)).toEqual([
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{
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from: 'angular2/core',
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namedImports: [{name: 'MyComponent', propertyName: 'Component'}, {name: 'OnInit'}]
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},
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{from: 'angular2/common', namespace: 'common'},
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{from: './hero', namedImports: [{name: 'Hero'}]},
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{from: './hero-detail.component', namedImports: [{name: 'HeroDetailComponent'}]},
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{from: './hero.service', defaultName: 'HeroService'}
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]);
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});
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it('should be able to collect a simple component\'s metadata', () => {
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const sourceFile = program.getSourceFile('app/hero-detail.component.ts');
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const metadata = collector.getMetadata(sourceFile, typeChecker);
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expect(metadata).toEqual({
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__symbolic: 'module',
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metadata: {
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HeroDetailComponent: {
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__symbolic: 'class',
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decorators: [{
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__symbolic: 'call',
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expression: {__symbolic: 'reference', name: 'Component', module: 'angular2/core'},
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arguments: [{
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selector: 'my-hero-detail',
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template: `
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<div *ngIf="hero">
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<h2>{{hero.name}} details!</h2>
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<div><label>id: </label>{{hero.id}}</div>
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<div>
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<label>name: </label>
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<input [(ngModel)]="hero.name" placeholder="name"/>
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</div>
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</div>
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`
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}]
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}],
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members: {
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hero: [{
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__symbolic: 'property',
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decorators: [{
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__symbolic: 'call',
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expression:
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{__symbolic: 'reference', name: 'Input', module: 'angular2/core'}
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}]
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}]
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}
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}
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}
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});
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});
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it('should be able to get a more complicated component\'s metadata', () => {
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const sourceFile = program.getSourceFile('/app/app.component.ts');
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const metadata = collector.getMetadata(sourceFile, typeChecker);
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expect(metadata).toEqual({
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__symbolic: 'module',
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metadata: {
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AppComponent: {
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__symbolic: 'class',
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decorators: [{
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__symbolic: 'call',
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expression: {__symbolic: 'reference', name: 'Component', module: 'angular2/core'},
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arguments: [{
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selector: 'my-app',
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template: `
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<h2>My Heroes</h2>
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<ul class="heroes">
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<li *ngFor="#hero of heroes"
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(click)="onSelect(hero)"
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[class.selected]="hero === selectedHero">
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<span class="badge">{{hero.id | lowercase}}</span> {{hero.name | uppercase}}
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</li>
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</ul>
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<my-hero-detail [hero]="selectedHero"></my-hero-detail>
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`,
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directives: [
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{
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__symbolic: 'reference',
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name: 'HeroDetailComponent',
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module: './hero-detail.component'
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},
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{__symbolic: 'reference', name: 'NgFor', module: 'angular2/common'}
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],
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providers: [{__symbolic: 'reference', name: undefined, module: './hero.service'}],
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pipes: [
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{__symbolic: 'reference', name: 'LowerCasePipe', module: 'angular2/common'},
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{__symbolic: 'reference', name: 'UpperCasePipe', module: 'angular2/common'}
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]
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}]
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}],
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members: {
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__ctor__: [{
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__symbolic: 'constructor',
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parameters: [{__symbolic: 'reference', name: undefined, module: './hero.service'}]
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}],
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onSelect: [{__symbolic: 'method'}],
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ngOnInit: [{__symbolic: 'method'}],
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getHeroes: [{__symbolic: 'method'}]
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}
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}
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}
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});
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});
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it('should return the values of exported variables', () => {
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const sourceFile = program.getSourceFile('/app/mock-heroes.ts');
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const metadata = collector.getMetadata(sourceFile, typeChecker);
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expect(metadata).toEqual({
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__symbolic: 'module',
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metadata: {
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HEROES: [
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{'id': 11, 'name': 'Mr. Nice'}, {'id': 12, 'name': 'Narco'},
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{'id': 13, 'name': 'Bombasto'}, {'id': 14, 'name': 'Celeritas'},
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{'id': 15, 'name': 'Magneta'}, {'id': 16, 'name': 'RubberMan'},
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{'id': 17, 'name': 'Dynama'}, {'id': 18, 'name': 'Dr IQ'}, {'id': 19, 'name': 'Magma'},
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{'id': 20, 'name': 'Tornado'}
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]
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}
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});
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});
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it('should have no data produced for the no data cases', () => {
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const sourceFile = program.getSourceFile('/app/cases-no-data.ts');
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expect(sourceFile).toBeTruthy(sourceFile);
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const metadata = collector.getMetadata(sourceFile, typeChecker);
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expect(metadata).toBeFalsy();
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});
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let casesFile: ts.SourceFile;
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let casesMetadata: ModuleMetadata;
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beforeEach(() => {
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casesFile = program.getSourceFile('/app/cases-data.ts');
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casesMetadata = collector.getMetadata(casesFile, typeChecker);
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});
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it('should provide null for an any ctor pameter type', () => {
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const casesAny = <ClassMetadata>casesMetadata.metadata['CaseAny'];
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expect(casesAny).toBeTruthy();
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const ctorData = casesAny.members['__ctor__'];
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expect(ctorData).toEqual([{__symbolic: 'constructor', parameters: [null]}]);
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});
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it('should record annotations on set and get declarations', () => {
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const propertyData = {
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name: [{
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__symbolic: 'property',
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decorators: [{
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__symbolic: 'call',
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expression: {__symbolic: 'reference', module: 'angular2/core', name: 'Input'},
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arguments: ['firstName']
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}]
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}]
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};
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const caseGetProp = <ClassMetadata>casesMetadata.metadata['GetProp'];
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expect(caseGetProp.members).toEqual(propertyData);
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const caseSetProp = <ClassMetadata>casesMetadata.metadata['SetProp'];
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expect(caseSetProp.members).toEqual(propertyData);
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const caseFullProp = <ClassMetadata>casesMetadata.metadata['FullProp'];
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expect(caseFullProp.members).toEqual(propertyData);
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});
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});
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// TODO: Do not use \` in a template literal as it confuses clang-format
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const FILES: Directory = {
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'app': {
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'app.component.ts': `
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import {Component as MyComponent, OnInit} from 'angular2/core';
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import * as common from 'angular2/common';
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import {Hero} from './hero';
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import {HeroDetailComponent} from './hero-detail.component';
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import HeroService from './hero.service';
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// thrown away
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import 'angular2/core';
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@MyComponent({
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selector: 'my-app',
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template:` +
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'`' +
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`
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<h2>My Heroes</h2>
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<ul class="heroes">
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<li *ngFor="#hero of heroes"
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(click)="onSelect(hero)"
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[class.selected]="hero === selectedHero">
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<span class="badge">{{hero.id | lowercase}}</span> {{hero.name | uppercase}}
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</li>
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</ul>
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<my-hero-detail [hero]="selectedHero"></my-hero-detail>
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` +
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'`' +
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`,
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directives: [HeroDetailComponent, common.NgFor],
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providers: [HeroService],
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pipes: [common.LowerCasePipe, common.UpperCasePipe]
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})
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export class AppComponent implements OnInit {
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public title = 'Tour of Heroes';
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public heroes: Hero[];
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public selectedHero: Hero;
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constructor(private _heroService: HeroService) { }
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onSelect(hero: Hero) { this.selectedHero = hero; }
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ngOnInit() {
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this.getHeroes()
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}
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getHeroes() {
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this._heroService.getHeroesSlowly().then(heros => this.heroes = heros);
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}
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}`,
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'hero.ts': `
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export interface Hero {
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id: number;
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name: string;
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}`,
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'hero-detail.component.ts': `
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import {Component, Input} from 'angular2/core';
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import {Hero} from './hero';
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@Component({
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selector: 'my-hero-detail',
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template: ` +
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'`' +
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`
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<div *ngIf="hero">
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<h2>{{hero.name}} details!</h2>
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<div><label>id: </label>{{hero.id}}</div>
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<div>
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<label>name: </label>
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<input [(ngModel)]="hero.name" placeholder="name"/>
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</div>
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</div>
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` +
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'`' +
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`,
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})
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export class HeroDetailComponent {
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@Input() public hero: Hero;
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}`,
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'mock-heroes.ts': `
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import {Hero as Hero} from './hero';
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export const HEROES: Hero[] = [
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{"id": 11, "name": "Mr. Nice"},
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{"id": 12, "name": "Narco"},
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{"id": 13, "name": "Bombasto"},
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{"id": 14, "name": "Celeritas"},
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{"id": 15, "name": "Magneta"},
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{"id": 16, "name": "RubberMan"},
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{"id": 17, "name": "Dynama"},
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{"id": 18, "name": "Dr IQ"},
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{"id": 19, "name": "Magma"},
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{"id": 20, "name": "Tornado"}
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];`,
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'default-exporter.ts': `
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let a: string;
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export default a;
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`,
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'hero.service.ts': `
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import {Injectable} from 'angular2/core';
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import {HEROES} from './mock-heroes';
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import {Hero} from './hero';
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@Injectable()
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class HeroService {
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getHeros() {
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return Promise.resolve(HEROES);
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}
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getHeroesSlowly() {
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return new Promise<Hero[]>(resolve =>
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setTimeout(()=>resolve(HEROES), 2000)); // 2 seconds
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}
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}
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export default HeroService;`,
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'cases-data.ts': `
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import {Injectable, Input} from 'angular2/core';
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@Injectable()
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export class CaseAny {
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constructor(param: any) {}
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}
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@Injectable()
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export class GetProp {
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private _name: string;
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@Input('firstName') get name(): string {
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return this._name;
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}
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}
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@Injectable()
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export class SetProp {
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private _name: string;
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@Input('firstName') set name(value: string) {
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this._name = value;
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}
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}
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@Injectable()
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export class FullProp {
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private _name: string;
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@Input('firstName') get name(): string {
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return this._name;
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}
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set name(value: string) {
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this._name = value;
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}
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}
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`,
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'cases-no-data.ts': `
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import HeroService from './hero.service';
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export class CaseCtor {
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constructor(private _heroService: HeroService) { }
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}
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`
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},
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'promise.ts': `
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interface PromiseLike<T> {
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then<TResult>(onfulfilled?: (value: T) => TResult | PromiseLike<TResult>, onrejected?: (reason: any) => TResult | PromiseLike<TResult>): PromiseLike<TResult>;
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then<TResult>(onfulfilled?: (value: T) => TResult | PromiseLike<TResult>, onrejected?: (reason: any) => void): PromiseLike<TResult>;
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}
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interface Promise<T> {
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then<TResult>(onfulfilled?: (value: T) => TResult | PromiseLike<TResult>, onrejected?: (reason: any) => TResult | PromiseLike<TResult>): Promise<TResult>;
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then<TResult>(onfulfilled?: (value: T) => TResult | PromiseLike<TResult>, onrejected?: (reason: any) => void): Promise<TResult>;
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catch(onrejected?: (reason: any) => T | PromiseLike<T>): Promise<T>;
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catch(onrejected?: (reason: any) => void): Promise<T>;
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}
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interface PromiseConstructor {
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prototype: Promise<any>;
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new <T>(executor: (resolve: (value?: T | PromiseLike<T>) => void, reject: (reason?: any) => void) => void): Promise<T>;
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reject(reason: any): Promise<void>;
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reject<T>(reason: any): Promise<T>;
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resolve<T>(value: T | PromiseLike<T>): Promise<T>;
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resolve(): Promise<void>;
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}
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declare var Promise: PromiseConstructor;
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`,
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'node_modules': {
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'angular2': {
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'core.d.ts': `
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export interface Type extends Function { }
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export interface TypeDecorator {
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<T extends Type>(type: T): T;
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(target: Object, propertyKey?: string | symbol, parameterIndex?: number): void;
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annotations: any[];
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}
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export interface ComponentDecorator extends TypeDecorator { }
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export interface ComponentFactory {
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(obj: {
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selector?: string;
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inputs?: string[];
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outputs?: string[];
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properties?: string[];
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events?: string[];
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host?: {
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[key: string]: string;
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};
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bindings?: any[];
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providers?: any[];
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exportAs?: string;
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moduleId?: string;
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queries?: {
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[key: string]: any;
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};
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viewBindings?: any[];
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viewProviders?: any[];
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templateUrl?: string;
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template?: string;
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styleUrls?: string[];
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styles?: string[];
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directives?: Array<Type | any[]>;
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pipes?: Array<Type | any[]>;
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}): ComponentDecorator;
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}
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export declare var Component: ComponentFactory;
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export interface InputFactory {
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(bindingPropertyName?: string): any;
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new (bindingPropertyName?: string): any;
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}
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export declare var Input: InputFactory;
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export interface InjectableFactory {
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(): any;
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}
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export declare var Injectable: InjectableFactory;
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export interface OnInit {
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ngOnInit(): any;
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}
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`,
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'common.d.ts': `
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export declare class NgFor {
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ngForOf: any;
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ngForTemplate: any;
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ngDoCheck(): void;
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}
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export declare class LowerCasePipe {
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transform(value: string, args?: any[]): string;
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}
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export declare class UpperCasePipe {
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transform(value: string, args?: any[]): string;
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}
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`
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}
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}
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};
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