install: Update fs.access to allow io.js versions w/ fixed windows ver

This also pushes them off to their own file, so we can stop doing
the copy-pasta dance. It also makes explaining the rational of the
check cleaner I think.

PR-URL: https://github.com/npm/npm/pull/9038

1 files changed, 54 insertions, 0 deletions

diff --git a/test/tap/is-fs-access-available.js b/test/tap/is-fs-access-available.js
new file mode 100644
index 000000000..7374e4022
--- /dev/null
+++ b/test/tap/is-fs-access-available.js
@@ -0,0 +1,54 @@
+'use strict'
+var test = require('tap').test
+var requireInject = require('require-inject')
+var semver = require('semver')
+
+var globalProcess = global.process
+
+function loadIsFsAccessAvailable (newProcess, fs) {
+  global.process = newProcess
+  var mocks = {fs: fs}
+  var isFsAccessAvailable = requireInject('../../lib/install/is-fs-access-available.js', mocks)
+  global.process = globalProcess
+  return isFsAccessAvailable
+}
+
+var fsWithAccess = {access: function () {}}
+var fsWithoutAccess = {}
+
+if (semver.lt(process.version, '0.12.0')) {
+  test('skipping', function (t) {
+    t.pass('skipping all tests on < 0.12.0 due to process not being injectable')
+    t.end()
+  })
+} else {
+  test('mac + !fs.access', function (t) {
+    var isFsAccessAvailable = loadIsFsAccessAvailable({platform: 'darwin'}, fsWithoutAccess)
+    t.is(isFsAccessAvailable, false, 'not available')
+    t.end()
+  })
+
+  test('mac + fs.access', function (t) {
+    var isFsAccessAvailable = loadIsFsAccessAvailable({platform: 'darwin'}, fsWithAccess)
+    t.is(isFsAccessAvailable, true, 'available')
+    t.end()
+  })
+
+  test('windows + !fs.access', function (t) {
+    var isFsAccessAvailable = loadIsFsAccessAvailable({platform: 'win32'}, fsWithoutAccess)
+    t.is(isFsAccessAvailable, false, 'not available')
+    t.end()
+  })
+
+  test('windows + fs.access + node 0.12.7', function (t) {
+    var isFsAccessAvailable = loadIsFsAccessAvailable({platform: 'win32', version: '0.12.7'}, fsWithAccess)
+    t.is(isFsAccessAvailable, false, 'not available')
+    t.end()
+  })
+
+  test('windows + fs.access + node 2.4.0', function (t) {
+    var isFsAccessAvailable = loadIsFsAccessAvailable({platform: 'win32', version: '2.4.0'}, fsWithAccess)
+    t.is(isFsAccessAvailable, true, 'available')
+    t.end()
+  })
+}