Index: node_modules/node-gyp/test/test-find-accessible-sync.js
===================================================================
--- node_modules/node-gyp/test/test-find-accessible-sync.js	(revision 81bc7da776d8cda42939ef4ab350c88d13b4941f)
+++ node_modules/node-gyp/test/test-find-accessible-sync.js	(revision 81bc7da776d8cda42939ef4ab350c88d13b4941f)
@@ -0,0 +1,84 @@
+'use strict'
+
+const test = require('tap').test
+const path = require('path')
+const requireInject = require('require-inject')
+const configure = requireInject('../lib/configure', {
+  'graceful-fs': {
+    closeSync: function () { return undefined },
+    openSync: function (path) {
+      if (readableFiles.some(function (f) { return f === path })) {
+        return 0
+      } else {
+        var error = new Error('ENOENT - not found')
+        throw error
+      }
+    }
+  }
+})
+
+const dir = path.sep + 'testdir'
+const readableFile = 'readable_file'
+const anotherReadableFile = 'another_readable_file'
+const readableFileInDir = 'somedir' + path.sep + readableFile
+const readableFiles = [
+  path.resolve(dir, readableFile),
+  path.resolve(dir, anotherReadableFile),
+  path.resolve(dir, readableFileInDir)
+]
+
+test('find accessible - empty array', function (t) {
+  t.plan(1)
+
+  var candidates = []
+  var found = configure.test.findAccessibleSync('test', dir, candidates)
+  t.strictEqual(found, undefined)
+})
+
+test('find accessible - single item array, readable', function (t) {
+  t.plan(1)
+
+  var candidates = [readableFile]
+  var found = configure.test.findAccessibleSync('test', dir, candidates)
+  t.strictEqual(found, path.resolve(dir, readableFile))
+})
+
+test('find accessible - single item array, readable in subdir', function (t) {
+  t.plan(1)
+
+  var candidates = [readableFileInDir]
+  var found = configure.test.findAccessibleSync('test', dir, candidates)
+  t.strictEqual(found, path.resolve(dir, readableFileInDir))
+})
+
+test('find accessible - single item array, unreadable', function (t) {
+  t.plan(1)
+
+  var candidates = ['unreadable_file']
+  var found = configure.test.findAccessibleSync('test', dir, candidates)
+  t.strictEqual(found, undefined)
+})
+
+test('find accessible - multi item array, no matches', function (t) {
+  t.plan(1)
+
+  var candidates = ['non_existent_file', 'unreadable_file']
+  var found = configure.test.findAccessibleSync('test', dir, candidates)
+  t.strictEqual(found, undefined)
+})
+
+test('find accessible - multi item array, single match', function (t) {
+  t.plan(1)
+
+  var candidates = ['non_existent_file', readableFile]
+  var found = configure.test.findAccessibleSync('test', dir, candidates)
+  t.strictEqual(found, path.resolve(dir, readableFile))
+})
+
+test('find accessible - multi item array, return first match', function (t) {
+  t.plan(1)
+
+  var candidates = ['non_existent_file', anotherReadableFile, readableFile]
+  var found = configure.test.findAccessibleSync('test', dir, candidates)
+  t.strictEqual(found, path.resolve(dir, anotherReadableFile))
+})