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patch.test.ts
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patch.test.ts
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import fs from 'fs'
import os from 'os'
import path from 'path'
import { prepare } from '@pnpm/prepare'
import tempy from 'tempy'
import { patch, patchCommit } from '@pnpm/plugin-commands-patching'
import { readProjectManifest } from '@pnpm/read-project-manifest'
import { REGISTRY_MOCK_PORT } from '@pnpm/registry-mock'
import { DEFAULT_OPTS } from './utils/index'
describe('patch and commit', () => {
let defaultPatchOption: patch.PatchCommandOptions
beforeEach(() => {
prepare({
dependencies: {
'is-positive': '1.0.0',
},
})
const cacheDir = path.resolve('cache')
const storeDir = path.resolve('store')
defaultPatchOption = {
cacheDir,
dir: process.cwd(),
pnpmHomeDir: '',
rawConfig: {
registry: `http://localhost:${REGISTRY_MOCK_PORT}/`,
},
registries: { default: `http://localhost:${REGISTRY_MOCK_PORT}/` },
storeDir,
userConfig: {},
}
})
test('patch and commit', async () => {
const output = await patch.handler(defaultPatchOption, ['is-positive@1.0.0'])
const patchDir = getPatchDirFromPatchOutput(output)
const tempDir = os.tmpdir() // temp dir depends on the operating system (@see tempy)
// store patch files in a temporary directory when not given editDir option
expect(patchDir).toContain(tempDir)
expect(fs.existsSync(patchDir)).toBe(true)
// sanity check to ensure that the license file contains the expected string
expect(fs.readFileSync(path.join(patchDir, 'license'), 'utf8')).toContain('The MIT License (MIT)')
fs.appendFileSync(path.join(patchDir, 'index.js'), '// test patching', 'utf8')
fs.unlinkSync(path.join(patchDir, 'license'))
await patchCommit.handler({
...DEFAULT_OPTS,
dir: process.cwd(),
}, [patchDir])
const { manifest } = await readProjectManifest(process.cwd())
expect(manifest.pnpm?.patchedDependencies).toStrictEqual({
'is-positive@1.0.0': 'patches/is-positive@1.0.0.patch',
})
const patchContent = fs.readFileSync('patches/is-positive@1.0.0.patch', 'utf8')
expect(patchContent).toContain('diff --git')
expect(patchContent).toContain('// test patching')
expect(fs.readFileSync('node_modules/is-positive/index.js', 'utf8')).toContain('// test patching')
expect(patchContent).not.toContain('The MIT License (MIT)')
expect(fs.existsSync('node_modules/is-positive/license')).toBe(false)
})
test('patch and commit with a custom edit dir', async () => {
const editDir = path.join(tempy.directory())
const output = await patch.handler({ ...defaultPatchOption, editDir }, ['is-positive@1.0.0'])
const patchDir = getPatchDirFromPatchOutput(output)
expect(patchDir).toBe(editDir)
expect(fs.existsSync(patchDir)).toBe(true)
fs.appendFileSync(path.join(patchDir, 'index.js'), '// test patching', 'utf8')
await patchCommit.handler({
...DEFAULT_OPTS,
dir: process.cwd(),
}, [patchDir])
expect(fs.readFileSync('node_modules/is-positive/index.js', 'utf8')).toContain('// test patching')
})
test('patch throws an error if the edit-dir already exists and is not empty', async () => {
const editDir = tempy.directory()
fs.writeFileSync(path.join(editDir, 'test.txt'), '', 'utf8')
await expect(() => patch.handler({ ...defaultPatchOption, editDir }, ['is-positive@1.0.0']))
.rejects.toThrow(`The target directory already exists: '${editDir}'`)
})
test('patch and commit should work when the patch directory is specified with a trailing slash', async () => {
const editDir = path.join(tempy.directory()) + (os.platform() === 'win32' ? '\\' : '/')
const output = await patch.handler({ ...defaultPatchOption, editDir }, ['is-positive@1.0.0'])
const patchDir = getPatchDirFromPatchOutput(output)
expect(patchDir).toBe(editDir)
expect(fs.existsSync(patchDir)).toBe(true)
fs.appendFileSync(path.join(patchDir, 'index.js'), '// test patching', 'utf8')
await patchCommit.handler({
...DEFAULT_OPTS,
dir: process.cwd(),
}, [patchDir])
expect(fs.readFileSync('node_modules/is-positive/index.js', 'utf8')).toContain('// test patching')
})
})
describe('patching should work when there is a no EOL in the patched file', () => {
let defaultPatchOption: patch.PatchCommandOptions
beforeEach(() => {
prepare({
dependencies: {
'safe-execa': '0.1.2',
},
})
const cacheDir = path.resolve('cache')
const storeDir = path.resolve('store')
defaultPatchOption = {
cacheDir,
dir: process.cwd(),
pnpmHomeDir: '',
rawConfig: {
registry: `http://localhost:${REGISTRY_MOCK_PORT}/`,
},
registries: { default: `http://localhost:${REGISTRY_MOCK_PORT}/` },
storeDir,
userConfig: {},
}
})
it('should work when adding content on a newline', async () => {
const output = await patch.handler(defaultPatchOption, ['safe-execa@0.1.2'])
const userPatchDir = getPatchDirFromPatchOutput(output)
const tempDir = os.tmpdir()
expect(userPatchDir).toContain(tempDir)
expect(fs.existsSync(userPatchDir)).toBe(true)
expect(fs.existsSync(path.join(userPatchDir, 'lib/index.js'))).toBe(true)
fs.appendFileSync(path.join(userPatchDir, 'lib/index.js'), '\n// test patching', 'utf8')
await patchCommit.handler({
...DEFAULT_OPTS,
dir: process.cwd(),
}, [userPatchDir])
const { manifest } = await readProjectManifest(process.cwd())
expect(manifest.pnpm?.patchedDependencies).toStrictEqual({
'safe-execa@0.1.2': 'patches/safe-execa@0.1.2.patch',
})
const patchContent = fs.readFileSync('patches/safe-execa@0.1.2.patch', 'utf8')
expect(patchContent).toContain('diff --git')
expect(patchContent).toContain('// test patching')
expect(patchContent).not.toContain('No newline at end of file')
expect(fs.readFileSync('node_modules/safe-execa/lib/index.js', 'utf8')).toContain('// test patching')
})
it('should work fine when new content is appended', async () => {
const output = await patch.handler(defaultPatchOption, ['safe-execa@0.1.2'])
const userPatchDir = getPatchDirFromPatchOutput(output)
const tempDir = os.tmpdir()
expect(userPatchDir).toContain(tempDir)
expect(fs.existsSync(userPatchDir)).toBe(true)
expect(fs.existsSync(path.join(userPatchDir, 'lib/index.js'))).toBe(true)
fs.appendFileSync(path.join(userPatchDir, 'lib/index.js'), '// patch without newline', 'utf8')
await patchCommit.handler({
...DEFAULT_OPTS,
dir: process.cwd(),
}, [userPatchDir])
const { manifest } = await readProjectManifest(process.cwd())
expect(manifest.pnpm?.patchedDependencies).toStrictEqual({
'safe-execa@0.1.2': 'patches/safe-execa@0.1.2.patch',
})
const patchContent = fs.readFileSync('patches/safe-execa@0.1.2.patch', 'utf8')
expect(patchContent).toContain('No newline at end of file')
expect(fs.readFileSync('node_modules/safe-execa/lib/index.js', 'utf8')).toContain('//# sourceMappingURL=index.js.map// patch without newline')
})
})
function getPatchDirFromPatchOutput (output: string) {
const [firstLine] = output.split('\n')
return firstLine.substring(firstLine.indexOf(':') + 1).trim()
}