2018-07-16 03:51:14 -04:00
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/**
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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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2018-08-22 15:33:17 -04:00
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import * as fs from 'fs';
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2018-07-16 03:51:14 -04:00
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import * as ts from 'typescript';
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2018-08-22 15:33:17 -04:00
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import {DtsMapper} from '../../src/host/dts_mapper';
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import {Esm2015ReflectionHost} from '../../src/host/esm2015_host';
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import {getDeclaration, makeProgram} from '../helpers/utils';
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2018-07-16 03:51:14 -04:00
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2018-08-22 15:33:17 -04:00
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const CLASSES = [
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2018-07-16 03:51:14 -04:00
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{
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2018-08-22 15:33:17 -04:00
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name: '/src/class.js',
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2018-07-16 03:51:14 -04:00
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contents: `
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export class NoTypeParam {}
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export class OneTypeParam {}
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export class TwoTypeParams {}
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2018-07-16 03:51:14 -04:00
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`,
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},
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{
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2018-08-22 15:33:17 -04:00
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name: '/typings/class.d.ts',
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2018-07-16 03:51:14 -04:00
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contents: `
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2018-08-22 15:33:17 -04:00
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export class NoTypeParam {}
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export class OneTypeParam<T> {}
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export class TwoTypeParams<T, K> {}
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2018-07-16 03:51:14 -04:00
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`,
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},
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];
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2018-08-17 02:50:55 -04:00
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const MARKER_FILE = {
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name: '/marker.js',
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contents: `
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let compileNgModuleFactory = compileNgModuleFactory__PRE_NGCC__;
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function compileNgModuleFactory__PRE_NGCC__(injector, options, moduleType) {
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const compilerFactory = injector.get(CompilerFactory);
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const compiler = compilerFactory.createCompiler([options]);
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return compiler.compileModuleAsync(moduleType);
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}
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function compileNgModuleFactory__POST_NGCC__(injector, options, moduleType) {
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ngDevMode && assertNgModuleType(moduleType);
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return Promise.resolve(new R3NgModuleFactory(moduleType));
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}
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`
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};
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2018-09-26 12:24:43 -04:00
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const DECORATED_FILES = [
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{
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name: '/primary.js',
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contents: `
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import {Directive} from '@angular/core';
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class A {}
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A.decorators = [
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{ type: Directive, args: [{ selector: '[a]' }] }
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];
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function x() {}
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function y() {}
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class B {}
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B.decorators = [
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{ type: Directive, args: [{ selector: '[b]' }] }
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];
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class C {}
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export { A, x, C };
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export { D } from '/secondary';
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`
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},
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{
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name: '/secondary.js',
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contents: `
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import {Directive} from '@angular/core';
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class D {}
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D.decorators = [
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{ type: Directive, args: [{ selector: '[d]' }] }
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];
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export { D };
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`
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}
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];
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2018-07-16 03:51:14 -04:00
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describe('Esm2015ReflectionHost', () => {
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describe('getGenericArityOfClass()', () => {
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it('should properly count type parameters', () => {
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// Mock out reading the `d.ts` file from disk
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const readFileSyncSpy = spyOn(fs, 'readFileSync').and.returnValue(CLASSES[1].contents);
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const program = makeProgram(CLASSES[0]);
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const dtsMapper = new DtsMapper('/src', '/typings');
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2018-10-03 11:59:32 -04:00
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const host = new Esm2015ReflectionHost(false, program.getTypeChecker(), dtsMapper);
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const noTypeParamClass =
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getDeclaration(program, '/src/class.js', 'NoTypeParam', ts.isClassDeclaration);
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expect(host.getGenericArityOfClass(noTypeParamClass)).toBe(0);
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const oneTypeParamClass =
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getDeclaration(program, '/src/class.js', 'OneTypeParam', ts.isClassDeclaration);
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expect(host.getGenericArityOfClass(oneTypeParamClass)).toBe(1);
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const twoTypeParamsClass =
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getDeclaration(program, '/src/class.js', 'TwoTypeParams', ts.isClassDeclaration);
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expect(host.getGenericArityOfClass(twoTypeParamsClass)).toBe(2);
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});
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});
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2018-08-17 02:50:55 -04:00
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describe('getSwitchableDeclarations()', () => {
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it('should return a collection of all the switchable variable declarations in the given module',
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() => {
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const program = makeProgram(MARKER_FILE);
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const dtsMapper = new DtsMapper('/src', '/typings');
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2018-10-03 11:59:32 -04:00
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const host = new Esm2015ReflectionHost(false, program.getTypeChecker(), dtsMapper);
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const file = program.getSourceFile(MARKER_FILE.name) !;
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const declarations = host.getSwitchableDeclarations(file);
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expect(declarations.map(d => [d.name.getText(), d.initializer !.getText()])).toEqual([
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['compileNgModuleFactory', 'compileNgModuleFactory__PRE_NGCC__']
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]);
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});
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});
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2018-09-26 12:24:43 -04:00
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describe('findDecoratedFiles()', () => {
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it('should return an array of objects for each file that has exported and decorated classes',
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() => {
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const program = makeProgram(...DECORATED_FILES);
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const dtsMapper = new DtsMapper('/src', '/typings');
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const host = new Esm2015ReflectionHost(false, program.getTypeChecker(), dtsMapper);
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2018-09-28 09:57:50 -04:00
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const primaryFile = program.getSourceFile(DECORATED_FILES[0].name) !;
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const secondaryFile = program.getSourceFile(DECORATED_FILES[1].name) !;
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const decoratedFiles = host.findDecoratedFiles(primaryFile);
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expect(decoratedFiles.size).toEqual(2);
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const primary = decoratedFiles.get(primaryFile) !;
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expect(primary.decoratedClasses.length).toEqual(1);
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const classA = primary.decoratedClasses.find(c => c.name === 'A') !;
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expect(classA.name).toEqual('A');
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expect(ts.isClassDeclaration(classA.declaration)).toBeTruthy();
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expect(classA.decorators.map(decorator => decorator.name)).toEqual(['Directive']);
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const secondary = decoratedFiles.get(secondaryFile) !;
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expect(secondary.decoratedClasses.length).toEqual(1);
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const classD = secondary.decoratedClasses.find(c => c.name === 'D') !;
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expect(classD.name).toEqual('D');
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expect(ts.isClassDeclaration(classD.declaration)).toBeTruthy();
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expect(classD.decorators.map(decorator => decorator.name)).toEqual(['Directive']);
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});
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});
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2018-07-16 03:51:14 -04:00
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});
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