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refactor(ivy): ngcc - add MockFileSystem (#29643)

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PR Close #29643
This commit is contained in:
Pete Bacon Darwin
2019-04-28 20:47:57 +01:00
committed by Andrew Kushnir
parent 16d7dde2ad
commit ef861958a9
14 changed files with 408 additions and 304 deletions
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41
packages/compiler-cli/ngcc/test/packages/entry_point_spec.ts
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@ -6,25 +6,20 @@
* found in the LICENSE file at https://angular.io/license
*/
import {readFileSync} from 'fs';
import * as mockFs from 'mock-fs';
import {AbsoluteFsPath} from '../../../src/ngtsc/path';
import {NodeJSFileSystem} from '../../src/file_system/node_js_file_system';
import {FileSystem} from '../../src/file_system/file_system';
import {getEntryPointInfo} from '../../src/packages/entry_point';
import {MockFileSystem} from '../helpers/mock_file_system';
import {MockLogger} from '../helpers/mock_logger';
const _ = AbsoluteFsPath.fromUnchecked;
describe('getEntryPointInfo()', () => {
beforeEach(createMockFileSystem);
afterEach(restoreRealFileSystem);
const SOME_PACKAGE = _('/some_package');
it('should return an object containing absolute paths to the formats of the specified entry-point',
() => {
const fs = new NodeJSFileSystem();
const fs = createMockFileSystem();
const entryPoint = getEntryPointInfo(
fs, new MockLogger(), SOME_PACKAGE, _('/some_package/valid_entry_point'));
expect(entryPoint).toEqual({
@ -32,20 +27,20 @@ describe('getEntryPointInfo()', () => {
package: SOME_PACKAGE,
path: _('/some_package/valid_entry_point'),
typings: _(`/some_package/valid_entry_point/valid_entry_point.d.ts`),
packageJson: loadPackageJson('/some_package/valid_entry_point'),
packageJson: loadPackageJson(fs, '/some_package/valid_entry_point'),
compiledByAngular: true,
});
});
it('should return null if there is no package.json at the entry-point path', () => {
const fs = new NodeJSFileSystem();
const fs = createMockFileSystem();
const entryPoint = getEntryPointInfo(
fs, new MockLogger(), SOME_PACKAGE, _('/some_package/missing_package_json'));
expect(entryPoint).toBe(null);
});
it('should return null if there is no typings or types field in the package.json', () => {
const fs = new NodeJSFileSystem();
const fs = createMockFileSystem();
const entryPoint =
getEntryPointInfo(fs, new MockLogger(), SOME_PACKAGE, _('/some_package/missing_typings'));
expect(entryPoint).toBe(null);
@ -53,7 +48,7 @@ describe('getEntryPointInfo()', () => {
it('should return an object with `compiledByAngular` set to false if there is no metadata.json file next to the typing file',
() => {
const fs = new NodeJSFileSystem();
const fs = createMockFileSystem();
const entryPoint = getEntryPointInfo(
fs, new MockLogger(), SOME_PACKAGE, _('/some_package/missing_metadata'));
expect(entryPoint).toEqual({
@ -61,13 +56,13 @@ describe('getEntryPointInfo()', () => {
package: SOME_PACKAGE,
path: _('/some_package/missing_metadata'),
typings: _(`/some_package/missing_metadata/missing_metadata.d.ts`),
packageJson: loadPackageJson('/some_package/missing_metadata'),
packageJson: loadPackageJson(fs, '/some_package/missing_metadata'),
compiledByAngular: false,
});
});
it('should work if the typings field is named `types', () => {
const fs = new NodeJSFileSystem();
const fs = createMockFileSystem();
const entryPoint = getEntryPointInfo(
fs, new MockLogger(), SOME_PACKAGE, _('/some_package/types_rather_than_typings'));
expect(entryPoint).toEqual({
@ -75,13 +70,13 @@ describe('getEntryPointInfo()', () => {
package: SOME_PACKAGE,
path: _('/some_package/types_rather_than_typings'),
typings: _(`/some_package/types_rather_than_typings/types_rather_than_typings.d.ts`),
packageJson: loadPackageJson('/some_package/types_rather_than_typings'),
packageJson: loadPackageJson(fs, '/some_package/types_rather_than_typings'),
compiledByAngular: true,
});
});
it('should work with Angular Material style package.json', () => {
const fs = new NodeJSFileSystem();
const fs = createMockFileSystem();
const entryPoint =
getEntryPointInfo(fs, new MockLogger(), SOME_PACKAGE, _('/some_package/material_style'));
expect(entryPoint).toEqual({
@ -89,13 +84,13 @@ describe('getEntryPointInfo()', () => {
package: SOME_PACKAGE,
path: _('/some_package/material_style'),
typings: _(`/some_package/material_style/material_style.d.ts`),
packageJson: JSON.parse(readFileSync('/some_package/material_style/package.json', 'utf8')),
packageJson: loadPackageJson(fs, '/some_package/material_style'),
compiledByAngular: true,
});
});
it('should return null if the package.json is not valid JSON', () => {
const fs = new NodeJSFileSystem();
const fs = createMockFileSystem();
const entryPoint = getEntryPointInfo(
fs, new MockLogger(), SOME_PACKAGE, _('/some_package/unexpected_symbols'));
expect(entryPoint).toBe(null);
@ -103,7 +98,7 @@ describe('getEntryPointInfo()', () => {
});
function createMockFileSystem() {
mockFs({
return new MockFileSystem({
'/some_package': {
'valid_entry_point': {
'package.json': createPackageJson('valid_entry_point'),
@ -150,10 +145,6 @@ function createMockFileSystem() {
});
}
function restoreRealFileSystem() {
mockFs.restore();
}
function createPackageJson(
packageName: string, {excludes}: {excludes?: string[]} = {},
typingsProp: string = 'typings'): string {
@ -172,6 +163,6 @@ function createPackageJson(
return JSON.stringify(packageJson);
}
export function loadPackageJson(packagePath: string) {
return JSON.parse(readFileSync(packagePath + '/package.json', 'utf8'));
export function loadPackageJson(fs: FileSystem, packagePath: string) {
return JSON.parse(fs.readFile(_(packagePath + '/package.json')));
}