Add test for special npm handling

test/basic.js

@@ -6,6 +6,7 @@ var winNoSig = isWindows && 'no signals get through cmd'
 var onExit = require('signal-exit')
 var cp = require('child_process')
 var fixture = require.resolve('./fixtures/script.js')
+var npmFixture = require.resolve('./fixtures/npm')
 var fs = require('fs')
 var path = require('path')
 
@@ -293,6 +294,41 @@ t.test('exec shebang', { skip: winNoShebang }, function (t) {
   })
 })
 
+// see: https://github.com/bcoe/nyc/issues/190
+t.test('Node 5.8.x + npm 3.7.x - spawn', function (t) {
+  var npmdir = path.dirname(npmFixture)
+  process.env.PATH = npmdir + (isWindows ? ';' : ':') + (process.env.PATH || '')
+  var child = cp.spawn('npm', ['xyz'])
+
+  var out = ''
+  child.stdout.on('data', function (c) {
+    out += c
+  })
+  child.on('close', function (code, signal) {
+    t.equal(code, 0)
+    t.equal(signal, null)
+    t.true(~out.indexOf('xyz'))
+    t.end()
+  })
+})
+
+t.test('Node 5.8.x + npm 3.7.x - shell', function (t) {
+  var npmdir = path.dirname(npmFixture)
+  process.env.PATH = npmdir + (isWindows ? ';' : ':') + (process.env.PATH || '')
+  var child = cp.exec('npm xyz')
+
+  var out = ''
+  child.stdout.on('data', function (c) {
+    out += c
+  })
+  child.on('close', function (code, signal) {
+    t.equal(code, 0)
+    t.equal(signal, null)
+    t.true(~out.indexOf('xyz'))
+    t.end()
+  })
+})
+
 t.test('--harmony', function (t) {
   var node = process.execPath
   var child = cp.spawn(node, ['--harmony', fixture, 'xyz'])

test/fixtures/npm

@@ -0,0 +1,4 @@
+#!/bin/sh
+// 2>/dev/null; exec "`dirname "$0"`/node" "$0" "$@"
+console.log('%j', process.execArgv)
+console.log('%j', process.argv.slice(2))