forked from tj/commander.js
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command.executableSubcommand.lookup.test.js
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command.executableSubcommand.lookup.test.js
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const childProcess = require('child_process');
const path = require('path');
const util = require('util');
const execFileAsync = util.promisify(childProcess.execFile);
// Calling node explicitly so pm works without file suffix cross-platform.
// Get false positives due to use of testOrSkipOnWindows
/* eslint-disable jest/no-standalone-expect */
const testOrSkipOnWindows = (process.platform === 'win32') ? test.skip : test;
const pm = path.join(__dirname, './fixtures/pm');
test('when subcommand file missing then error', () => {
expect.assertions(1);
return execFileAsync('node', [pm, 'list']).catch((err) => {
if (process.platform === 'win32') {
// Get uncaught thrown error on Windows
// eslint-disable-next-line jest/no-conditional-expect
expect(err.stderr).toBeDefined();
} else {
// eslint-disable-next-line jest/no-conditional-expect
expect(err.stderr).toMatch(/Error: 'pm-list' does not exist/);
}
});
});
test('when alias subcommand file missing then error', () => {
expect.assertions(1);
return execFileAsync('node', [pm, 'lst']).catch((err) => {
if (process.platform === 'win32') {
// Get uncaught thrown error on Windows
// eslint-disable-next-line jest/no-conditional-expect
expect(err.stderr).toBeDefined();
} else {
// eslint-disable-next-line jest/no-conditional-expect
expect(err.stderr).toMatch(/Error: 'pm-list' does not exist/);
}
});
});
test('when subcommand file has no suffix then lookup succeeds', async() => {
const { stdout } = await execFileAsync('node', [pm, 'install']);
expect(stdout).toBe('install\n');
});
test('when alias subcommand file has no suffix then lookup succeeds', async() => {
const { stdout } = await execFileAsync('node', [pm, 'i']);
expect(stdout).toBe('install\n');
});
test('when subcommand target executablefile has no suffix then lookup succeeds', async() => {
const { stdout } = await execFileAsync('node', [pm, 'specifyInstall']);
expect(stdout).toBe('install\n');
});
test('when subcommand file suffix .js then lookup succeeds', async() => {
const { stdout } = await execFileAsync('node', [pm, 'publish']);
expect(stdout).toBe('publish\n');
});
test('when alias subcommand file suffix .js then lookup succeeds', async() => {
const { stdout } = await execFileAsync('node', [pm, 'p']);
expect(stdout).toBe('publish\n');
});
test('when subcommand target executablefile has suffix .js then lookup succeeds', async() => {
const { stdout } = await execFileAsync('node', [pm, 'specifyPublish']);
expect(stdout).toBe('publish\n');
});
testOrSkipOnWindows('when subcommand file is symlink then lookup succeeds', async() => {
const pmlink = path.join(__dirname, 'fixtures', 'pmlink');
const { stdout } = await execFileAsync('node', [pmlink, 'install']);
expect(stdout).toBe('install\n');
});
testOrSkipOnWindows('when subcommand file is double symlink then lookup succeeds', async() => {
const pmlink = path.join(__dirname, 'fixtures', 'another-dir', 'pm');
const { stdout } = await execFileAsync('node', [pmlink, 'install']);
expect(stdout).toBe('install\n');
});
test('when subcommand suffix is .ts then lookup succeeds', async() => {
// We support looking for ts files for ts-node in particular, but don't need to test ts-node itself.
// The subcommand is both plain JavaScript code for this test.
const binLinkTs = path.join(__dirname, 'fixtures-extensions', 'pm.js');
// childProcess.execFile('node', ['-r', 'ts-node/register', binLinkTs, 'install'], function(_error, stdout, stderr) {
const { stdout } = await execFileAsync('node', [binLinkTs, 'try-ts']);
expect(stdout).toBe('found .ts\n');
});
test('when subcommand suffix is .cjs then lookup succeeds', async() => {
const binLinkTs = path.join(__dirname, 'fixtures-extensions', 'pm.js');
const { stdout } = await execFileAsync('node', [binLinkTs, 'try-cjs']);
expect(stdout).toBe('found .cjs\n');
});
test('when subcommand suffix is .mjs then lookup succeeds', async() => {
const binLinkTs = path.join(__dirname, 'fixtures-extensions', 'pm.js');
const { stdout } = await execFileAsync('node', [binLinkTs, 'try-mjs']);
expect(stdout).toBe('found .mjs\n');
});
test('when subsubcommand then lookup sub-sub-command', async() => {
const { stdout } = await execFileAsync('node', [pm, 'cache', 'clear']);
expect(stdout).toBe('cache-clear\n');
});