angular-cn/tools/@angular/tsc-wrapped/test/main.spec.ts

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/**
* @license
* Copyright Google Inc. All Rights Reserved.
*
* Use of this source code is governed by an MIT-style license that can be
* found in the LICENSE file at https://angular.io/license
*/
import * as fs from 'fs';
import * as path from 'path';
import {main} from '../src/main';
import {makeTempDir} from './test_support';
describe('tsc-wrapped', () => {
let basePath: string;
let write: (fileName: string, content: string) => void;
beforeEach(() => {
basePath = makeTempDir();
write = (fileName: string, content: string) => {
fs.writeFileSync(path.join(basePath, fileName), content, {encoding: 'utf-8'});
};
write('decorators.ts', '/** @Annotation */ export var Component: Function;');
fs.mkdirSync(path.join(basePath, 'dep'));
write('dep/index.ts', `
export const A = 1;
export const B = 2;
`);
write('test.ts', `
import {Component} from './decorators';
export * from './dep';
@Component({})
export class Comp {
/**
* Comment that is
* multiple lines
*/
method(x: string): void {}
}
`);
});
function readOut(ext: string) {
return fs.readFileSync(path.join(basePath, 'built', `test.${ext}`), {encoding: 'utf-8'});
}
it('should report error if project not found', () => {
main('not-exist', null as any)
.then(() => fail('should report error'))
.catch(e => expect(e.message).toContain('ENOENT'));
});
it('should pre-process sources', (done) => {
write('tsconfig.json', `{
"compilerOptions": {
"experimentalDecorators": true,
"types": [],
"outDir": "built",
"declaration": true,
"moduleResolution": "node",
"target": "es2015"
},
"angularCompilerOptions": {
"annotateForClosureCompiler": true
},
"files": ["test.ts"]
}`);
main(basePath, {basePath})
.then(() => {
const out = readOut('js');
// No helpers since decorators were lowered
expect(out).not.toContain('__decorate');
// Expand `export *` and fix index import
expect(out).toContain(`export { A, B } from './dep/index'`);
// Annotated for Closure compiler
expect(out).toContain('* @param {?} x');
// Comments should stay multi-line
expect(out).not.toContain('Comment that is multiple lines');
// Decorator is now an annotation
expect(out).toMatch(/Comp.decorators = \[\s+\{ type: Component/);
const decl = readOut('d.ts');
expect(decl).toContain('declare class Comp');
const metadata = readOut('metadata.json');
expect(metadata).toContain('"Comp":{"__symbolic":"class"');
done();
})
.catch(e => done.fail(e));
});
it('should pre-process sources using config from vinyl like object', (done) => {
const config = {
path: basePath + '/tsconfig.json',
contents: new Buffer(JSON.stringify({
compilerOptions: {
experimentalDecorators: true,
types: [],
outDir: 'built',
declaration: true,
moduleResolution: 'node',
target: 'es2015'
},
angularCompilerOptions: {annotateForClosureCompiler: true},
files: ['test.ts']
}))
};
main(config, {basePath})
.then(() => {
const out = readOut('js');
// Expand `export *` and fix index import
expect(out).toContain(`export { A, B } from './dep/index'`);
// Annotated for Closure compiler
expect(out).toContain('* @param {?} x');
done();
})
.catch(e => done.fail(e));
});
it('should allow all options disabled', (done) => {
write('tsconfig.json', `{
"compilerOptions": {
"experimentalDecorators": true,
"types": [],
"outDir": "built",
"declaration": false,
"module": "es2015",
"moduleResolution": "node"
},
"angularCompilerOptions": {
"annotateForClosureCompiler": false,
"annotationsAs": "decorators",
"skipMetadataEmit": true,
"skipTemplateCodegen": true
},
"files": ["test.ts"]
}`);
main(basePath, {basePath})
.then(() => {
const out = readOut('js');
// TypeScript's decorator emit
expect(out).toContain('__decorate');
// Not annotated for Closure compiler
expect(out).not.toContain('* @param {?} x');
expect(() => fs.accessSync(path.join(basePath, 'built', 'test.metadata.json'))).toThrow();
expect(() => fs.accessSync(path.join(basePath, 'built', 'test.d.ts'))).toThrow();
done();
})
.catch(e => done.fail(e));
});
it('should allow JSDoc annotations without decorator downleveling', (done) => {
write('tsconfig.json', `{
"compilerOptions": {
"experimentalDecorators": true,
"types": [],
"outDir": "built",
"declaration": true
},
"angularCompilerOptions": {
"annotateForClosureCompiler": true,
"annotationsAs": "decorators"
},
"files": ["test.ts"]
}`);
main(basePath, {basePath}).then(() => done()).catch(e => done.fail(e));
});
xit('should run quickly (performance baseline)', (done) => {
for (let i = 0; i < 1000; i++) {
write(`input${i}.ts`, `
import {Component} from './decorators';
@Component({})
export class Input${i} {
private __brand: string;
}
`);
}
write('tsconfig.json', `{
"compilerOptions": {
"experimentalDecorators": true,
"types": [],
"outDir": "built",
"declaration": true,
"diagnostics": true
},
"angularCompilerOptions": {
"annotateForClosureCompiler": false,
"annotationsAs": "decorators",
"skipMetadataEmit": true
},
"include": ["input*.ts"]
}`);
console.time('BASELINE');
main(basePath, {basePath})
.then(() => {
console.timeEnd('BASELINE');
done();
})
.catch(e => done.fail(e));
});
xit('should run quickly (performance test)', (done) => {
for (let i = 0; i < 1000; i++) {
write(`input${i}.ts`, `
import {Component} from './decorators';
@Component({})
export class Input${i} {
private __brand: string;
}
`);
}
write('tsconfig.json', `{
"compilerOptions": {
"experimentalDecorators": true,
"types": [],
"outDir": "built",
"declaration": true,
"diagnostics": true,
"skipLibCheck": true
},
"angularCompilerOptions": {
"annotateForClosureCompiler": true
},
"include": ["input*.ts"]
}`);
console.time('TSICKLE');
main(basePath, {basePath})
.then(() => {
console.timeEnd('TSICKLE');
done();
})
.catch(e => done.fail(e));
});
it('should produce valid source maps', (done) => {
write('tsconfig.json', `{
"compilerOptions": {
"experimentalDecorators": true,
"types": [],
"outDir": "built",
"declaration": true,
"moduleResolution": "node",
"target": "es2015",
"sourceMap": true
},
"angularCompilerOptions": {
"annotateForClosureCompiler": true
},
"files": ["test.ts"]
}`);
main(basePath, {basePath})
.then(() => {
const out = readOut('js.map');
expect(out).toContain('"sources":["../test.ts"]');
done();
})
.catch(e => done.fail(e));
});
});