angular/packages/compiler-cli/test/helpers/src/mock_file_loading.ts
Pete Bacon Darwin 98a68ad3e7 fix(ivy): handle namespaced imports correctly (#31367)
The ngcc tool adds namespaced imports to files when compiling. The ngtsc
tooling was not processing types correctly when they were imported via
such namespaces. For example:

```
export declare class SomeModule {
    static withOptions(...): ModuleWithProviders<ɵngcc1.BaseModule>;
```

In this case the `BaseModule` was being incorrectly attributed to coming
from the current module rather than the imported module, represented by
`ɵngcc1`.

Fixes #31342

PR Close #31367
2019-07-09 09:40:30 -07:00

86 lines
2.9 KiB
TypeScript

/**
* @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
*/
/// <reference types="node" />
import {readFileSync, readdirSync, statSync} from 'fs';
import {resolve} from 'path';
import {getAngularPackagesFromRunfiles, resolveNpmTreeArtifact} from '..';
import {AbsoluteFsPath, FileSystem, getFileSystem} from '../../../src/ngtsc/file_system';
import {Folder, MockFileSystemPosix, TestFile} from '../../../src/ngtsc/file_system/testing';
export function loadTestFiles(files: TestFile[]) {
const fs = getFileSystem();
files.forEach(file => {
fs.ensureDir(fs.dirname(file.name));
fs.writeFile(file.name, file.contents);
});
}
export function loadStandardTestFiles(
{fakeCore = true, rxjs = false}: {fakeCore?: boolean, rxjs?: boolean} = {}): Folder {
const tmpFs = new MockFileSystemPosix(true);
const basePath = '/' as AbsoluteFsPath;
loadTestDirectory(
tmpFs, resolveNpmTreeArtifact('typescript'),
tmpFs.resolve(basePath, 'node_modules/typescript'));
loadTsLib(tmpFs, basePath);
if (fakeCore) {
loadFakeCore(tmpFs, basePath);
} else {
getAngularPackagesFromRunfiles().forEach(({name, pkgPath}) => {
loadTestDirectory(tmpFs, pkgPath, tmpFs.resolve('/node_modules/@angular', name));
});
}
if (rxjs) {
loadTestDirectory(
tmpFs, resolveNpmTreeArtifact('rxjs'), tmpFs.resolve(basePath, 'node_modules/rxjs'));
}
return tmpFs.dump();
}
export function loadTsLib(fs: FileSystem, basePath: string = '/') {
loadTestDirectory(
fs, resolveNpmTreeArtifact('tslib'), fs.resolve(basePath, 'node_modules/tslib'));
}
export function loadFakeCore(fs: FileSystem, basePath: string = '/') {
loadTestDirectory(
fs, resolveNpmTreeArtifact('angular/packages/compiler-cli/test/ngtsc/fake_core/npm_package'),
fs.resolve(basePath, 'node_modules/@angular/core'));
}
/**
* Load real files from the real file-system into a mock file-system.
* @param fs the file-system where the directory is to be loaded.
* @param directoryPath the path to the directory we want to load.
* @param mockPath the path within the mock file-system where the directory is to be loaded.
*/
function loadTestDirectory(fs: FileSystem, directoryPath: string, mockPath: AbsoluteFsPath): void {
readdirSync(directoryPath).forEach(item => {
const srcPath = resolve(directoryPath, item);
const targetPath = fs.resolve(mockPath, item);
try {
if (statSync(srcPath).isDirectory()) {
fs.ensureDir(targetPath);
loadTestDirectory(fs, srcPath, targetPath);
} else {
fs.ensureDir(fs.dirname(targetPath));
fs.writeFile(targetPath, readFileSync(srcPath, 'utf-8'));
}
} catch (e) {
console.warn(`Failed to add ${srcPath} to the mock file-system: ${e.message}`);
}
});
}