281 lines
9.1 KiB
TypeScript
281 lines
9.1 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 path from 'path';
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import * as ts from 'typescript';
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import {MetadataBundler, MetadataBundlerHost} from '../../src/metadata/bundler';
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import {MetadataCollector} from '../../src/metadata/collector';
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import {ClassMetadata, MetadataGlobalReferenceExpression, ModuleMetadata} from '../../src/metadata/schema';
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import {Directory, open} from './typescript.mocks';
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describe('metadata bundler', () => {
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it('should be able to bundle a simple library', () => {
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const host = new MockStringBundlerHost('/', SIMPLE_LIBRARY);
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const bundler = new MetadataBundler('/lib/index', undefined, host);
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const result = bundler.getMetadataBundle();
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expect(Object.keys(result.metadata.metadata).sort()).toEqual([
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'ONE_CLASSES', 'One', 'OneMore', 'TWO_CLASSES', 'Two', 'TwoMore', 'ɵa', 'ɵb'
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]);
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const originalOne = './src/one';
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const originalTwo = './src/two/index';
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expect(Object.keys(result.metadata.origins !)
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.sort()
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.map(name => ({name, value: result.metadata.origins ![name]})))
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.toEqual([
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{name: 'ONE_CLASSES', value: originalOne}, {name: 'One', value: originalOne},
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{name: 'OneMore', value: originalOne}, {name: 'TWO_CLASSES', value: originalTwo},
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{name: 'Two', value: originalTwo}, {name: 'TwoMore', value: originalTwo},
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{name: 'ɵa', value: originalOne}, {name: 'ɵb', value: originalTwo}
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]);
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expect(result.privates).toEqual([
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{privateName: 'ɵa', name: 'PrivateOne', module: originalOne},
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{privateName: 'ɵb', name: 'PrivateTwo', module: originalTwo}
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]);
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});
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it('should be able to bundle an oddly constructed library', () => {
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const host = new MockStringBundlerHost('/', {
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'lib': {
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'index.ts': `
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export * from './src/index';
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`,
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'src': {
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'index.ts': `
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export {One, OneMore, ONE_CLASSES} from './one';
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export {Two, TwoMore, TWO_CLASSES} from './two/index';
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`,
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'one.ts': `
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class One {}
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class OneMore extends One {}
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class PrivateOne {}
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const ONE_CLASSES = [One, OneMore, PrivateOne];
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export {One, OneMore, PrivateOne, ONE_CLASSES};
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`,
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'two': {
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'index.ts': `
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class Two {}
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class TwoMore extends Two {}
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class PrivateTwo {}
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const TWO_CLASSES = [Two, TwoMore, PrivateTwo];
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export {Two, TwoMore, PrivateTwo, TWO_CLASSES};
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`
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}
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}
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}
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});
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const bundler = new MetadataBundler('/lib/index', undefined, host);
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const result = bundler.getMetadataBundle();
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expect(Object.keys(result.metadata.metadata).sort()).toEqual([
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'ONE_CLASSES', 'One', 'OneMore', 'TWO_CLASSES', 'Two', 'TwoMore', 'ɵa', 'ɵb'
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]);
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expect(result.privates).toEqual([
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{privateName: 'ɵa', name: 'PrivateOne', module: './src/one'},
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{privateName: 'ɵb', name: 'PrivateTwo', module: './src/two/index'}
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]);
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});
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it('should not output windows paths in metadata', () => {
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const host = new MockStringBundlerHost('/', {
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'index.ts': `
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export * from './exports/test';
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`,
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'exports': {'test.ts': `export class TestExport {}`}
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});
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const bundler = new MetadataBundler('/index', undefined, host);
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const result = bundler.getMetadataBundle();
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expect(result.metadata.origins).toEqual({'TestExport': './exports/test'});
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});
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it('should convert re-exported to the export', () => {
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const host = new MockStringBundlerHost('/', {
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'index.ts': `
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export * from './bar';
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export * from './foo';
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`,
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'bar.ts': `
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import {Foo} from './foo';
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export class Bar extends Foo {
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}
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`,
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'foo.ts': `
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export {Foo} from 'foo';
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`
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});
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const bundler = new MetadataBundler('/index', undefined, host);
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const result = bundler.getMetadataBundle();
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// Expect the extends reference to refer to the imported module
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expect((result.metadata.metadata as any).Bar.extends.module).toEqual('foo');
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expect(result.privates).toEqual([]);
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});
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it('should treat import then export as a simple export', () => {
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const host = new MockStringBundlerHost('/', {
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'index.ts': `
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export * from './a';
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export * from './c';
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`,
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'a.ts': `
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import { B } from './b';
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export { B };
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`,
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'b.ts': `
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export class B { }
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`,
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'c.ts': `
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import { B } from './b';
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export class C extends B { }
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`
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});
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const bundler = new MetadataBundler('/index', undefined, host);
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const result = bundler.getMetadataBundle();
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expect(Object.keys(result.metadata.metadata).sort()).toEqual(['B', 'C']);
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expect(result.privates).toEqual([]);
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});
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it('should be able to bundle a private from a un-exported module', () => {
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const host = new MockStringBundlerHost('/', {
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'index.ts': `
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export * from './foo';
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`,
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'foo.ts': `
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import {Bar} from './bar';
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export class Foo extends Bar {
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}
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`,
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'bar.ts': `
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export class Bar {}
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`
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});
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const bundler = new MetadataBundler('/index', undefined, host);
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const result = bundler.getMetadataBundle();
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expect(Object.keys(result.metadata.metadata).sort()).toEqual(['Foo', 'ɵa']);
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expect(result.privates).toEqual([{privateName: 'ɵa', name: 'Bar', module: './bar'}]);
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});
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it('should be able to bundle a library with re-exported symbols', () => {
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const host = new MockStringBundlerHost('/', {
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'public-api.ts': `
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export * from './src/core';
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export * from './src/externals';
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`,
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'src': {
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'core.ts': `
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export class A {}
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export class B extends A {}
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`,
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'externals.ts': `
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export {E, F, G} from 'external_one';
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export * from 'external_two';
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`
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}
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});
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const bundler = new MetadataBundler('/public-api', undefined, host);
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const result = bundler.getMetadataBundle();
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expect(result.metadata.exports).toEqual([
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{from: 'external_two'}, {
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export: [{name: 'E', as: 'E'}, {name: 'F', as: 'F'}, {name: 'G', as: 'G'}],
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from: 'external_one'
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}
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]);
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expect(result.metadata.origins !['E']).toBeUndefined();
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});
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it('should be able to de-duplicate symbols of re-exported modules', () => {
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const host = new MockStringBundlerHost('/', {
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'public-api.ts': `
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export {A as A2, A, B as B1, B as B2} from './src/core';
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export {A as A3} from './src/alternate';
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`,
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'src': {
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'core.ts': `
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export class A {}
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export class B {}
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`,
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'alternate.ts': `
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export class A {}
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`,
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}
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});
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const bundler = new MetadataBundler('/public-api', undefined, host);
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const result = bundler.getMetadataBundle();
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const {A, A2, A3, B1, B2} = result.metadata.metadata as{
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A: ClassMetadata,
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A2: MetadataGlobalReferenceExpression,
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A3: ClassMetadata,
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B1: ClassMetadata,
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B2: MetadataGlobalReferenceExpression
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};
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expect(A.__symbolic).toEqual('class');
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expect(A2.__symbolic).toEqual('reference');
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expect(A2.name).toEqual('A');
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expect(A3.__symbolic).toEqual('class');
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expect(B1.__symbolic).toEqual('class');
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expect(B2.__symbolic).toEqual('reference');
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expect(B2.name).toEqual('B1');
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});
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});
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export class MockStringBundlerHost implements MetadataBundlerHost {
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collector = new MetadataCollector();
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constructor(private dirName: string, private directory: Directory) {}
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getMetadataFor(moduleName: string): ModuleMetadata|undefined {
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const fileName = path.join(this.dirName, moduleName) + '.ts';
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const text = open(this.directory, fileName);
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if (typeof text == 'string') {
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const sourceFile = ts.createSourceFile(
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fileName, text, ts.ScriptTarget.Latest, /* setParent */ true, ts.ScriptKind.TS);
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const diagnostics: ts.Diagnostic[] = (sourceFile as any).parseDiagnostics;
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if (diagnostics && diagnostics.length) {
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throw Error('Unexpected syntax error in test');
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}
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const result = this.collector.getMetadata(sourceFile);
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return result;
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}
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}
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}
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export const SIMPLE_LIBRARY = {
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'lib': {
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'index.ts': `
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export * from './src/index';
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`,
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'src': {
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'index.ts': `
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export {One, OneMore, ONE_CLASSES} from './one';
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export {Two, TwoMore, TWO_CLASSES} from './two/index';
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`,
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'one.ts': `
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export class One {}
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export class OneMore extends One {}
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export class PrivateOne {}
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export const ONE_CLASSES = [One, OneMore, PrivateOne];
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`,
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'two': {
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'index.ts': `
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export class Two {}
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export class TwoMore extends Two {}
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export class PrivateTwo {}
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export const TWO_CLASSES = [Two, TwoMore, PrivateTwo];
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`
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}
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}
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}
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};
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