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patch.test.ts
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patch.test.ts
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import fs from 'fs'
import path from 'path'
import prepare from '@pnpm/prepare'
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'
test('patch and commit', async () => {
prepare({
dependencies: {
'is-positive': '1.0.0',
},
})
const cacheDir = path.resolve('cache')
const storeDir = path.resolve('store')
const output = await patch.handler({
cacheDir,
dir: process.cwd(),
pnpmHomeDir: '',
rawConfig: {
registry: `http://localhost:${REGISTRY_MOCK_PORT}/`,
},
registries: { default: `http://localhost:${REGISTRY_MOCK_PORT}/` },
storeDir,
userConfig: {},
}, ['is-positive@1.0.0'])
const userPatchDir = output.substring(output.indexOf(':') + 1).trim()
// sanity check to ensure that the license file contains the expected string
expect(fs.readFileSync(path.join(userPatchDir, 'license'), 'utf8')).toContain('The MIT License (MIT)')
fs.appendFileSync(path.join(userPatchDir, 'index.js'), '// test patching', 'utf8')
fs.unlinkSync(path.join(userPatchDir, 'license'))
await patchCommit.handler({
...DEFAULT_OPTS,
dir: process.cwd(),
}, [userPatchDir])
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)
})