first commit

build/node_modules/npm-which/test/index.js

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+"use strict"
+
+var test = require('tape')
+
+var path = require('path')
+
+var npmWhich = require('../')
+
+var level0 = path.join(__dirname, 'fixtures', 'level0')
+var level1 = path.join(level0, 'node_modules', 'level1')
+var level2 = path.join(level1, 'node_modules', 'level2')
+
+var level = [level0, level1, level2]
+var binPath = level.map(function(levelPath) {
+  return path.join(levelPath, "node_modules", ".bin")
+})
+
+test('includes all .bin dirs in all parent node_modules folders', function(t) {
+  t.test('no nesting', function(t) {
+    var level1Bin = npmWhich.sync('level1', {cwd: level[0]})
+    t.equal(level1Bin, path.join(binPath[0], 'level1'))
+    t.end()
+  })
+
+  t.test('nesting', function(t) {
+    var level1Bin = npmWhich.sync('level1', {cwd: level[1]})
+    t.equal(level1Bin, path.join(binPath[0], 'level1'))
+    var level2Bin = npmWhich.sync('level2', {cwd: level[1]})
+    t.equal(level2Bin, path.join(binPath[1], 'level2'))
+    t.end()
+  })
+
+  t.test('more nesting', function(t) {
+    var level1Bin = npmWhich.sync('level1', {cwd: level[2]})
+    t.equal(level1Bin, path.join(binPath[0], 'level1'))
+    var level2Bin = npmWhich.sync('level2', {cwd: level[2]})
+    t.equal(level2Bin, path.join(binPath[1], 'level2'))
+    t.end()
+  })
+
+  t.end()
+})
+
+test('does not mutate PATH', function(t) {
+  var before = process.env.PATH
+  var level1Bin = npmWhich.sync('level1', {env: {PATH: binPath[0]}})
+  var after = process.env.PATH
+  t.deepEqual(before, after)
+  t.end()
+})
+
+test('does not mutate PATH after failed find', function(t) {
+  var before = process.env.PATH
+  t.throws(function() {
+    var level1Bin = npmWhich.sync('asdasd', {env: {PATH: binPath[0]}})
+  })
+  var after = process.env.PATH
+  t.deepEqual(before, after)
+  t.end()
+})