diff options
Diffstat (limited to 'deps/npm/node_modules/find-npm-prefix/test/find-prefix.js')
-rw-r--r-- | deps/npm/node_modules/find-npm-prefix/test/find-prefix.js | 79 |
1 files changed, 79 insertions, 0 deletions
diff --git a/deps/npm/node_modules/find-npm-prefix/test/find-prefix.js b/deps/npm/node_modules/find-npm-prefix/test/find-prefix.js new file mode 100644 index 0000000000..de2ab41cb9 --- /dev/null +++ b/deps/npm/node_modules/find-npm-prefix/test/find-prefix.js @@ -0,0 +1,79 @@ +'use strict' +const Bluebird = require('bluebird') +const test = require('tap').test +const requireInject = require('require-inject') +const findPrefix = requireInject('../find-prefix.js', { + fs: { + readdir: mockReaddir + } +}) + +test('find-prefix', t => { + const tests = { + '/Users/example/code/test1/node_modules': '/Users/example/code/test1', + '/Users/example/code/test1/node_modules/node_modules': '/Users/example/code/test1', + '/Users/example/code/test1/sub1': '/Users/example/code/test1', + '/Users/example/code/test1/sub1/sub1a': '/Users/example/code/test1', + '/Users/example/code/test2': '/Users/example/code/test2', + '/Users/example/code/test2/sub2': '/Users/example/code/test2', + '/Users/example/code': '/Users/example/code', + '/Users/example': '/Users/example', + '/does/not/exist': '/does/not/exist' + } + t.plan(Object.keys(tests).length) + return Bluebird.map(Object.keys(tests), dir => { + return findPrefix(dir).then(pre => { + t.is(pre, tests[dir], dir) + }) + }) +}) + +test('fail-prefix', t => { + return findPrefix('/Users/example/eperm').then(pre => { + t.fail('no eperm') + }).catch(err => { + t.is(err.code, 'EPERM', 'got perm error') + }) +}) + +const fixture = { + 'Users': { + 'example': { + 'code': { + 'test1': { + 'node_modules': { + 'node_modules': {} + }, + 'sub1': { + 'sub1a': {} + } + }, + 'test2': { + 'package.json': {}, + 'sub2': {} + } + } + } + } +} + +function mockReaddir (dir, cb) { + if (/eperm/.test(dir)) { + const err = new Error('Can not read: ' + dir) + err.code = 'EPERM' + return cb(err) + } + const parts = dir.split(/\//).slice(1) + let cwd = fixture + let part + while ((part = parts.shift())) { + if (part in cwd) { + cwd = cwd[part] + } else { + const err = new Error('Does not exist: ' + dir + ' * ' + part) + err.code = 'ENOENT' + return cb(err) + } + } + return cb(null, Object.keys(cwd)) +} |