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index.ts
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index.ts
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import fs from 'fs'
import cp from 'child_process'
import path from 'path'
import tempy from 'tempy'
import index, { Env } from '../'
let spy: jest.SpyInstance
function expectSpawnSyncToHaveBeenCalledWith(
cwd: string,
cmd: string,
env: Env = {}
): void {
expect(cp.spawnSync).toHaveBeenCalledWith('sh', ['-c', cmd], {
cwd,
env: { ...process.env, ...env },
stdio: 'inherit'
})
}
describe('run', (): void => {
beforeEach((): void => {
spy = jest.spyOn(cp, 'spawnSync')
})
afterEach((): void => {
spy.mockReset()
spy.mockRestore()
})
it('should run command and return 0 status', async (): Promise<void> => {
const dir = tempy.directory()
fs.writeFileSync(
path.join(dir, 'package.json'),
JSON.stringify({
husky: {
hooks: {
'pre-commit': 'echo success'
}
}
})
)
const status = await index(['', '', 'pre-commit'], { cwd: dir })
expectSpawnSyncToHaveBeenCalledWith(dir, 'echo success')
expect(status).toBe(0)
})
it('should return 0 status if no hooks are defined', async (): Promise<
void
> => {
const dir = tempy.directory()
fs.writeFileSync(
path.join(dir, 'package.json'),
JSON.stringify({
husky: {}
})
)
const status = await index(['', '', 'pre-commit'], { cwd: dir })
expect(cp.spawnSync).not.toBeCalled()
expect(status).toBe(0)
})
it('should return 1 status if the command is not found in PATH', async (): Promise<
void
> => {
const dir = tempy.directory()
fs.writeFileSync(
path.join(dir, 'package.json'),
JSON.stringify({
husky: {
hooks: {
'pre-commit': 'cmdfoo'
}
}
})
)
const status = await index(['', '', 'pre-commit'], { cwd: dir })
expect(status).toBe(1)
})
it('should run failing command and return 1 status', async (): Promise<
void
> => {
const dir = tempy.directory()
fs.writeFileSync(
path.join(dir, 'package.json'),
JSON.stringify({
husky: {
hooks: {
'pre-commit': 'echo fail && exit 2'
}
}
})
)
const status = await index(['', '', 'pre-commit'], { cwd: dir })
expectSpawnSyncToHaveBeenCalledWith(dir, 'echo fail && exit 2')
expect(status).toBe(2)
})
it('should support old scripts but show a deprecated message', async (): Promise<
void
> => {
const dir = tempy.directory()
fs.writeFileSync(
path.join(dir, 'package.json'),
JSON.stringify({
scripts: {
precommit: 'echo success'
}
})
)
const status = await index(['', '', 'pre-commit'], { cwd: dir })
expectSpawnSyncToHaveBeenCalledWith(dir, 'echo success')
expect(status).toBe(0)
})
it('should set HUSKY_GIT_PARAMS', async (): Promise<void> => {
const dir = tempy.directory()
fs.writeFileSync(
path.join(dir, 'package.json'),
JSON.stringify({
husky: {
hooks: {
'commit-msg': 'echo success'
}
}
})
)
// 'commit-msg' takes one parameter from git
const status = await index(['', '', 'commit-msg', 'git fake param'], {
cwd: dir
})
expectSpawnSyncToHaveBeenCalledWith(dir, 'echo success', {
HUSKY_GIT_PARAMS: 'git fake param'
})
expect(status).toBe(0)
})
it("should not throw if there's no package.json", async (): Promise<void> => {
const dir = tempy.directory()
await index(['', '', 'pre-push'], {
cwd: dir
})
})
})