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mockFilesystem.ts ×16

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225 tests · 11695 LOC · 51 files · introduces 0 tests · 127 LOC · 1 file

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1 file ranked by introduced lines: 127 introduced LOC across 16 ranges. Expand a file to inspect source; the > gutter marks introduced lines.

src/vs/workbench/contrib/chat/test/common/promptSyntax/testUtils/mockFilesystem.ts 127 introduced LOC · 16 ranges

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1 > /*--------------------------------------------------------------------------------------------- mockFilesystem.ts
2 > * Copyright (c) Microsoft Corporation. All rights reserved.
3 > * Licensed under the MIT License. See License.txt in the project root for license information.
4 > *--------------------------------------------------------------------------------------------*/
5 >
6 > import { URI } from '../../../../../../../base/common/uri.js';
7 > import { VSBuffer } from '../../../../../../../base/common/buffer.js';
8 > import { FileSystemProviderCapabilities, FileType, IFileService, IFileSystemProviderWithFileRealpathCapability, IStat } from '../../../../../../../platform/files/common/files.js';
9 > import { dirname } from '../../../../../../../base/common/resources.js';
10 > import { InMemoryFileSystemProvider } from '../../../../../../../platform/files/common/inMemoryFilesystemProvider.js';
11 > import { ResourceMap } from '../../../../../../../base/common/map.js';
12 >
13 > /**
14 > * Test file system provider that extends InMemoryFileSystemProvider with realpath support.
15 > * Allows tests to define custom realpath mappings to simulate symlinks.
16 > */
17 > export class TestInMemoryFileSystemProviderWithRealPath extends InMemoryFileSystemProvider implements IFileSystemProviderWithFileRealpathCapability {
18 private readonly realPathMappings = new ResourceMap<URI>();
19 > mockFilesystem.ts
20 > override get capabilities(): FileSystemProviderCapabilities {
21 return super.capabilities | FileSystemProviderCapabilities.FileRealpath;
22 }
23 > mockFilesystem.ts
24 > /**
25 > * Defines a realpath mapping for a URI.
26 > * When realpath() is called for the given URI, it will return the mapped realPath.
27 > * Use this to simulate symlinks - multiple URIs can map to the same realPath.
28 > */
29 > setRealPath(uri: URI, realPath: URI): void {
30 this.realPathMappings.set(uri, realPath);
31 }
32 > mockFilesystem.ts
33 > /**
34 > * Clears all realpath mappings.
35 > */
36 > clearRealPathMappings(): void {
37 this.realPathMappings.clear();
38 }
39 > mockFilesystem.ts
40 > /**
41 > * Returns the realpath for the given resource.
42 > * If a mapping was set via setRealPath(), returns that mapped path.
43 > * Otherwise returns the original path (simulating a non-symlink file).
44 > */
45 > async realpath(resource: URI): Promise<string> {
46 const mapped = this.realPathMappings.get(resource);
47 if (mapped) {
51 return resource.path;
52 }
53 > mockFilesystem.ts
54 > /**
55 > * Override stat to mark files with realPath mappings as symbolic links.
56 > */
57 > override async stat(resource: URI): Promise<IStat> {
58 const baseStat = await super.stat(resource);
59 const isSymlink = this.realPathMappings.has(resource);
66 return baseStat;
67 }
68 > mockFilesystem.ts
69 > /**
70 > * Override readdir to mark files with realPath mappings as symbolic links.
71 > */
72 > override async readdir(resource: URI): Promise<[string, FileType][]> {
73 const entries = await super.readdir(resource);
74 return entries.map(([name, type]) => {
80 });
81 }
82 > } mockFilesystem.ts
83 >
84 > /**
85 > * Represents a generic file system node.
86 > */
87 > interface IMockFilesystemNode {
88 > name: string;
89 > }
90 >
91 > /**
92 > * Represents a `file` node.
93 > */
94 > export interface IMockFile extends IMockFilesystemNode {
95 > contents: string | readonly string[];
96 > }
97 >
98 > /**
99 > * Represents a `folder` node.
100 > */
101 > export interface IMockFolder extends IMockFilesystemNode {
102 > children: (IMockFolder | IMockFile)[];
103 > }
104 >
105 >
106 > /**
107 > * Represents a file entry for simplified initialization.
108 > */
109 > export interface IMockFileEntry {
110 > path: string;
111 > contents: string[];
112 > }
113 >
114 > /**
115 > * Creates mock filesystem from provided file entries.
116 > * @param fileService File service instance
117 > * @param files Array of file entries with path and contents
118 > */
119 > export function mockFiles(fileService: IFileService, files: IMockFileEntry[], parentFolder?: URI): Promise<void> {
120 return new MockFilesystem(files, fileService).mock(parentFolder);
121 }
122 > mockFilesystem.ts
123 > /**
124 > * Utility to recursively creates provided filesystem structure.
125 > */
126 > export class MockFilesystem {
127 >
128 > private createdFiles: URI[] = [];
129 > private createdFolders: URI[] = [];
130 > private createdRootFolders: URI[] = [];
131 >
132 > constructor(
133 private readonly input: IMockFolder[] | IMockFileEntry[],
134 @IFileService private readonly fileService: IFileService,
135 ) { }
136 > mockFilesystem.ts
137 >
138 >
139 > /**
140 > * Starts the mock process.
141 > */
142 > public async mock(parentFolder?: URI): Promise<void> {
143 // Check if input is the new simplified format
144 if (this.input.length > 0 && 'path' in this.input[0]) {
149 return this.mockFromFolders(this.input as IMockFolder[], parentFolder);
150 }
151 > mockFilesystem.ts
152 > /**
153 > * Mock using the new simplified file entry format.
154 > */
155 > private async mockFromFileEntries(fileEntries: IMockFileEntry[]): Promise<void> {
156 // Create all files and their parent directories
157 for (const fileEntry of fileEntries) {
168 }
169 }
170 > mockFilesystem.ts
171 > /**
172 > * Mock using the old nested folder format.
173 > */
174 > private async mockFromFolders(folders: IMockFolder[], parentFolder?: URI): Promise<void> {
175 const result = await Promise.all(folders.map((folder) => this.mockFolder(folder, parentFolder)));
176 this.createdRootFolders.push(...result);
177 }
178 > mockFilesystem.ts
179 > public async delete(): Promise<void> {
180 // Delete files created by the new format
181 for (const fileUri of this.createdFiles) {
196 }
197 }
198 > mockFilesystem.ts
199 > /**
200 > * The internal implementation of the filesystem mocking process for the old format.
201 > */
202 > private async mockFolder(folder: IMockFolder, parentFolder?: URI): Promise<URI> {
203 const folderUri = parentFolder
204 ? URI.joinPath(parentFolder, folder.name)
235 return folderUri;
236 }
237 > mockFilesystem.ts
238 > /**
239 > * Ensures that all parent directories of the given file URI exist.
240 > */
241 > private async ensureParentDirectories(dirUri: URI): Promise<void> {
242 if (!await this.fileService.exists(dirUri)) {
243 // First ensure the parent directory exists (recursive call)

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