faster

test/fs.test.ts

@@ -3,7 +3,7 @@ import { tmpdir } from 'node:os'
 import { join } from 'node:path'
 import { afterEach, describe, expect, it } from 'vitest'
 import { simpleGit } from 'simple-git'
-import { buildTreeFromPaths, readAll, readProjectFile, readTree, writeProjectFile } from '../src/main/fs-service'
+import { buildTreeFromPaths, createProjectFile, readAll, readProjectFile, readTree, writeProjectFile } from '../src/main/fs-service'
 
 let dir = ''
 afterEach(async () => { if (dir) await rm(dir, { recursive: true, force: true }) })
@@ -76,3 +76,23 @@ describe('read/write round-trip', () => {
     expect(await readProjectFile(dir, 'note.txt')).toBe('hello world\n')
   })
 })
+
+describe('createProjectFile', () => {
+  it('creates an empty file and makes missing parent folders', async () => {
+    dir = await mkdtemp(join(tmpdir(), 'helder-fs-'))
+    await createProjectFile(dir, 'src/new/fresh.ts')
+    expect(await readProjectFile(dir, 'src/new/fresh.ts')).toBe('')
+  })
+
+  it('refuses to overwrite an existing file', async () => {
+    dir = await mkdtemp(join(tmpdir(), 'helder-fs-'))
+    await writeProjectFile(dir, 'keep.txt', 'precious\n')
+    await expect(createProjectFile(dir, 'keep.txt')).rejects.toThrow()
+    expect(await readProjectFile(dir, 'keep.txt')).toBe('precious\n')
+  })
+
+  it('refuses to escape the project root', async () => {
+    dir = await mkdtemp(join(tmpdir(), 'helder-fs-'))
+    await expect(createProjectFile(dir, '../escape.txt')).rejects.toThrow()
+  })
+})