Add test for long file paths

This test reads and write a directory with a path that is above 300 characters long, and checks that it comes out the other side. Currently, this test fails on Windows due to https://www.npmjs.com/package/standard. A subsequent commit will fix this.
meteor · Mar 24, 2015 · c07de3d · c07de3d
1 parent 6e78cee
commit c07de3d
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diff --git a/examples/long-paths.js b/examples/long-paths.js
@@ -0,0 +1,41 @@
+// This test creates a file with a path that's over 300 characters
+// long, which is longer than the Windows limit unless you use the
+// '\\?\' prefix.
+// https://msdn.microsoft.com/en-us/library/windows/desktop/aa365247%28v=vs.85%29.aspx
+//
+// Then it passes that directory into and out of fstream, to see if
+// that file comes out the other side. This tests
+// https://github.com/npm/fstream/issues/30
+
+var tap = require('tap')
+var temp = require('temp').track()
+var fs = require('fs')
+var path = require('path')
+var mkdirp = require('mkdirp')
+var fstream = require('../fstream.js')
+
+tap.test('long file paths', function (t) {
+  var inputDir = temp.mkdirSync('fstream-test-input')
+  var outputDir = temp.mkdirSync('fstream-test-output')
+
+  var longDir = inputDir
+  while (longDir.length < 300) {
+    longDir = path.join(longDir, 'subdirectory')
+  }
+
+  var STAMP = 'stamp'
+
+  mkdirp.sync(longDir)
+  var inputStampedFile = path.join(longDir, 'file')
+  fs.writeFileSync(inputStampedFile, STAMP)
+
+  var onPipeComplete = function () {
+    var outputStampedFile = inputStampedFile.replace(inputDir, outputDir)
+    t.equal(fs.readFileSync(outputStampedFile, 'utf-8'), STAMP)
+    t.end()
+  }
+
+  var reader = fstream.Reader(inputDir)
+  reader.on('end', onPipeComplete)
+  reader.pipe(fstream.Writer(outputDir))
+})
diff --git a/package.json b/package.json
@@ -19,7 +19,8 @@
   },
   "devDependencies": {
     "tap": "",
-    "standard": "^2.3.2"
+    "standard": "^2.3.2",
+    "temp": "^0.8.1"
   },
   "scripts": {
     "test": "standard && tap examples/*.js"