angular-cn/packages/compiler-cli/ngcc/test/entry_point_finder/utils_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 {absoluteFrom, getFileSystem} from '@angular/compiler-cli/src/ngtsc/file_system';
import {runInEachFileSystem} from '../../../src/ngtsc/file_system/testing';
import {getBasePaths} from '../../src/entry_point_finder/utils';
import {MockLogger} from '../helpers/mock_logger';
runInEachFileSystem(() => {
let _: typeof absoluteFrom;
let logger: MockLogger;
beforeEach(() => {
_ = absoluteFrom;
logger = new MockLogger();
});
describe('getBasePaths', () => {
it('should just return the `sourceDirectory if there are no `pathMappings', () => {
const sourceDirectory = _('/path/to/project/node_modules');
const basePaths = getBasePaths(logger, sourceDirectory, undefined);
expect(basePaths).toEqual([sourceDirectory]);
});
it('should use each path mapping prefix', () => {
const projectDirectory = _('/path/to/project');
const fs = getFileSystem();
fs.ensureDir(fs.resolve(projectDirectory, 'dist-1'));
fs.ensureDir(fs.resolve(projectDirectory, 'sub-folder/dist-2'));
fs.ensureDir(fs.resolve(projectDirectory, 'libs'));
const sourceDirectory = _('/path/to/project/node_modules');
const pathMappings = {
baseUrl: projectDirectory,
paths: {'@dist': ['dist-1', 'sub-folder/dist-2'], '@lib/*': ['libs/*']}
};
const basePaths = getBasePaths(logger, sourceDirectory, pathMappings);
expect(basePaths).toEqual([
sourceDirectory,
fs.resolve(projectDirectory, 'dist-1'),
fs.resolve(projectDirectory, 'libs'),
fs.resolve(projectDirectory, 'sub-folder/dist-2'),
]);
});
it('should not be confused by folders that have the same starting string', () => {
const projectDirectory = _('/path/to/project');
const fs = getFileSystem();
fs.ensureDir(fs.resolve(projectDirectory, 'a/b'));
fs.ensureDir(fs.resolve(projectDirectory, 'a/b-2'));
fs.ensureDir(fs.resolve(projectDirectory, 'a/b/c'));
const sourceDirectory = _('/path/to/project/node_modules');
const pathMappings = {baseUrl: projectDirectory, paths: {'@dist': ['a/b', 'a/b-2', 'a/b/c']}};
const basePaths = getBasePaths(logger, sourceDirectory, pathMappings);
expect(basePaths).toEqual([
sourceDirectory,
fs.resolve(projectDirectory, 'a/b'),
fs.resolve(projectDirectory, 'a/b-2'),
]);
});
it('should discard paths that are already contained by another path', () => {
const projectDirectory = _('/path/to/project');
const fs = getFileSystem();
fs.ensureDir(fs.resolve(projectDirectory, 'dist-1'));
fs.ensureDir(fs.resolve(projectDirectory, 'dist-1/sub-folder'));
fs.ensureDir(fs.resolve(projectDirectory, 'node_modules/libs'));
const sourceDirectory = _('/path/to/project/node_modules');
const pathMappings = {
baseUrl: projectDirectory,
paths: {'@dist': ['dist-1', 'dist-1/sub-folder'], '@lib/*': ['node_modules/libs/*']}
};
const basePaths = getBasePaths(logger, sourceDirectory, pathMappings);
expect(basePaths).toEqual([
sourceDirectory,
fs.resolve(projectDirectory, 'dist-1'),
]);
});
it('should use the containing directory of path mapped files', () => {
const projectDirectory = _('/path/to/project');
const fs = getFileSystem();
fs.ensureDir(fs.resolve(projectDirectory, 'dist-1'));
fs.writeFile(fs.resolve(projectDirectory, 'dist-1/file.js'), 'dummy content');
const sourceDirectory = _('/path/to/project/node_modules');
const pathMappings = {baseUrl: projectDirectory, paths: {'@dist': ['dist-1/file.js']}};
const basePaths = getBasePaths(logger, sourceDirectory, pathMappings);
expect(basePaths).toEqual([
sourceDirectory,
fs.resolve(projectDirectory, 'dist-1'),
]);
});
it('should always include the `sourceDirectory` if it is a node_modules directory in the returned basePaths, even if it is contained by another basePath',
() => {
const projectDirectory = _('/path/to/project');
const sourceDirectory = _('/path/to/project/node_modules');
const fs = getFileSystem();
fs.ensureDir(fs.resolve(sourceDirectory));
const pathMappings = {baseUrl: projectDirectory, paths: {'*': ['./*']}};
const basePaths = getBasePaths(logger, sourceDirectory, pathMappings);
expect(basePaths).toEqual([
sourceDirectory,
projectDirectory,
]);
});
it('should log a warning if baseUrl is the root path', () => {
const fs = getFileSystem();
fs.ensureDir(fs.resolve('/dist'));
const sourceDirectory = _('/path/to/project/node_modules');
const pathMappings = {baseUrl: _('/'), paths: {'@dist': ['dist']}};
const basePaths = getBasePaths(logger, sourceDirectory, pathMappings);
expect(basePaths).toEqual([
fs.resolve('/dist'),
sourceDirectory,
]);
expect(logger.logs.warn).toEqual([
[`The provided pathMappings baseUrl is the root path ${_('/')}.\n` +
`This is likely to mess up how ngcc finds entry-points and is probably not correct.\n` +
`Please check your path mappings configuration such as in the tsconfig.json file.`]
]);
});
it('should discard basePaths that do not exists and log a debug message', () => {
const projectDirectory = _('/path/to/project');
const fs = getFileSystem();
fs.ensureDir(fs.resolve(projectDirectory, 'dist-1'));
fs.ensureDir(fs.resolve(projectDirectory, 'sub-folder'));
const sourceDirectory = _('/path/to/project/node_modules');
const pathMappings = {
baseUrl: projectDirectory,
paths: {'@dist': ['dist-1', 'sub-folder/dist-2'], '@lib/*': ['libs/*']}
};
const basePaths = getBasePaths(logger, sourceDirectory, pathMappings);
expect(basePaths).toEqual([
sourceDirectory,
fs.resolve(projectDirectory, 'dist-1'),
]);
expect(logger.logs.debug).toEqual([
[`The basePath "${
fs.resolve(projectDirectory, 'sub-folder/dist-2')}" computed from baseUrl "${
projectDirectory}" and path mapping "sub-folder/dist-2" does not exist in the file-system.\n` +
`It will not be scanned for entry-points.`],
[`The basePath "${fs.resolve(projectDirectory, 'libs')}" computed from baseUrl "${
projectDirectory}" and path mapping "libs/*" does not exist in the file-system.\n` +
`It will not be scanned for entry-points.`],
]);
});
});
});