diff --git a/lib/_stream_duplex.js b/lib/_stream_duplex.js
index c5a741c..a2e0d8e 100644
--- a/lib/_stream_duplex.js
+++ b/lib/_stream_duplex.js
@@ -26,8 +26,8 @@
 
 module.exports = Duplex;
 var util = require('util');
-var Readable = require('_stream_readable');
-var Writable = require('_stream_writable');
+var Readable = require('./_stream_readable');
+var Writable = require('./_stream_writable');
 
 util.inherits(Duplex, Readable);
 
diff --git a/lib/_stream_passthrough.js b/lib/_stream_passthrough.js
index a5e9864..330c247 100644
--- a/lib/_stream_passthrough.js
+++ b/lib/_stream_passthrough.js
@@ -25,7 +25,7 @@
 
 module.exports = PassThrough;
 
-var Transform = require('_stream_transform');
+var Transform = require('./_stream_transform');
 var util = require('util');
 util.inherits(PassThrough, Transform);
 
diff --git a/lib/_stream_readable.js b/lib/_stream_readable.js
index 0c3fe3e..90a8298 100644
--- a/lib/_stream_readable.js
+++ b/lib/_stream_readable.js
@@ -23,10 +23,34 @@ module.exports = Readable;
 Readable.ReadableState = ReadableState;
 
 var EE = require('events').EventEmitter;
+if (!EE.listenerCount) EE.listenerCount = function(emitter, type) {
+  return emitter.listeners(type).length;
+};
+
+if (!global.setImmediate) global.setImmediate = function setImmediate(fn) {
+  return setTimeout(fn, 0);
+};
+if (!global.clearImmediate) global.clearImmediate = function clearImmediate(i) {
+  return clearTimeout(i);
+};
+
 var Stream = require('stream');
 var util = require('util');
+if (!util.isUndefined) {
+  var utilIs = require('core-util-is');
+  for (var f in utilIs) {
+    util[f] = utilIs[f];
+  }
+}
 var StringDecoder;
-var debug = util.debuglog('stream');
+var debug;
+if (util.debuglog)
+  debug = util.debuglog('stream');
+else try {
+  debug = require('debuglog')('stream');
+} catch (er) {
+  debug = function() {};
+}
 
 util.inherits(Readable, Stream);
 
@@ -380,7 +404,7 @@ function chunkInvalid(state, chunk) {
 
 
 function onEofChunk(stream, state) {
-  if (state.decoder && !state.ended) {
+  if (state.decoder && !state.ended && state.decoder.end) {
     var chunk = state.decoder.end();
     if (chunk && chunk.length) {
       state.buffer.push(chunk);
diff --git a/lib/_stream_transform.js b/lib/_stream_transform.js
index b1f9fcc..b0caf57 100644
--- a/lib/_stream_transform.js
+++ b/lib/_stream_transform.js
@@ -64,8 +64,14 @@
 
 module.exports = Transform;
 
-var Duplex = require('_stream_duplex');
+var Duplex = require('./_stream_duplex');
 var util = require('util');
+if (!util.isUndefined) {
+  var utilIs = require('core-util-is');
+  for (var f in utilIs) {
+    util[f] = utilIs[f];
+  }
+}
 util.inherits(Transform, Duplex);
 
 
diff --git a/lib/_stream_writable.js b/lib/_stream_writable.js
index ba2e920..f49288b 100644
--- a/lib/_stream_writable.js
+++ b/lib/_stream_writable.js
@@ -27,6 +27,12 @@ module.exports = Writable;
 Writable.WritableState = WritableState;
 
 var util = require('util');
+if (!util.isUndefined) {
+  var utilIs = require('core-util-is');
+  for (var f in utilIs) {
+    util[f] = utilIs[f];
+  }
+}
 var Stream = require('stream');
 
 util.inherits(Writable, Stream);
@@ -119,7 +125,7 @@ function WritableState(options, stream) {
 function Writable(options) {
   // Writable ctor is applied to Duplexes, though they're not
   // instanceof Writable, they're instanceof Readable.
-  if (!(this instanceof Writable) && !(this instanceof Stream.Duplex))
+  if (!(this instanceof Writable) && !(this instanceof require('./_stream_duplex')))
     return new Writable(options);
 
   this._writableState = new WritableState(options, this);
diff --git a/test/simple/test-stream-big-push.js b/test/simple/test-stream-big-push.js
index e3787e4..8cd2127 100644
--- a/test/simple/test-stream-big-push.js
+++ b/test/simple/test-stream-big-push.js
@@ -21,7 +21,7 @@
 
 var common = require('../common');
 var assert = require('assert');
-var stream = require('stream');
+var stream = require('../../');
 var str = 'asdfasdfasdfasdfasdf';
 
 var r = new stream.Readable({
diff --git a/test/simple/test-stream-end-paused.js b/test/simple/test-stream-end-paused.js
index bb73777..d40efc7 100644
--- a/test/simple/test-stream-end-paused.js
+++ b/test/simple/test-stream-end-paused.js
@@ -25,7 +25,7 @@ var gotEnd = false;
 
 // Make sure we don't miss the end event for paused 0-length streams
 
-var Readable = require('stream').Readable;
+var Readable = require('../../').Readable;
 var stream = new Readable();
 var calledRead = false;
 stream._read = function() {
diff --git a/test/simple/test-stream-pipe-after-end.js b/test/simple/test-stream-pipe-after-end.js
index b46ee90..0be8366 100644
--- a/test/simple/test-stream-pipe-after-end.js
+++ b/test/simple/test-stream-pipe-after-end.js
@@ -22,8 +22,8 @@
 var common = require('../common');
 var assert = require('assert');
 
-var Readable = require('_stream_readable');
-var Writable = require('_stream_writable');
+var Readable = require('../../lib/_stream_readable');
+var Writable = require('../../lib/_stream_writable');
 var util = require('util');
 
 util.inherits(TestReadable, Readable);
diff --git a/test/simple/test-stream-pipe-cleanup.js b/test/simple/test-stream-pipe-cleanup.js
deleted file mode 100644
index f689358..0000000
--- a/test/simple/test-stream-pipe-cleanup.js
+++ /dev/null
@@ -1,122 +0,0 @@
-// Copyright Joyent, Inc. and other Node contributors.
-//
-// Permission is hereby granted, free of charge, to any person obtaining a
-// copy of this software and associated documentation files (the
-// "Software"), to deal in the Software without restriction, including
-// without limitation the rights to use, copy, modify, merge, publish,
-// distribute, sublicense, and/or sell copies of the Software, and to permit
-// persons to whom the Software is furnished to do so, subject to the
-// following conditions:
-//
-// The above copyright notice and this permission notice shall be included
-// in all copies or substantial portions of the Software.
-//
-// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
-// OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
-// MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN
-// NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM,
-// DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
-// OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE
-// USE OR OTHER DEALINGS IN THE SOFTWARE.
-
-// This test asserts that Stream.prototype.pipe does not leave listeners
-// hanging on the source or dest.
-
-var common = require('../common');
-var stream = require('stream');
-var assert = require('assert');
-var util = require('util');
-
-function Writable() {
-  this.writable = true;
-  this.endCalls = 0;
-  stream.Stream.call(this);
-}
-util.inherits(Writable, stream.Stream);
-Writable.prototype.end = function() {
-  this.endCalls++;
-};
-
-Writable.prototype.destroy = function() {
-  this.endCalls++;
-};
-
-function Readable() {
-  this.readable = true;
-  stream.Stream.call(this);
-}
-util.inherits(Readable, stream.Stream);
-
-function Duplex() {
-  this.readable = true;
-  Writable.call(this);
-}
-util.inherits(Duplex, Writable);
-
-var i = 0;
-var limit = 100;
-
-var w = new Writable();
-
-var r;
-
-for (i = 0; i < limit; i++) {
-  r = new Readable();
-  r.pipe(w);
-  r.emit('end');
-}
-assert.equal(0, r.listeners('end').length);
-assert.equal(limit, w.endCalls);
-
-w.endCalls = 0;
-
-for (i = 0; i < limit; i++) {
-  r = new Readable();
-  r.pipe(w);
-  r.emit('close');
-}
-assert.equal(0, r.listeners('close').length);
-assert.equal(limit, w.endCalls);
-
-w.endCalls = 0;
-
-r = new Readable();
-
-for (i = 0; i < limit; i++) {
-  w = new Writable();
-  r.pipe(w);
-  w.emit('close');
-}
-assert.equal(0, w.listeners('close').length);
-
-r = new Readable();
-w = new Writable();
-var d = new Duplex();
-r.pipe(d); // pipeline A
-d.pipe(w); // pipeline B
-assert.equal(r.listeners('end').length, 2);   // A.onend, A.cleanup
-assert.equal(r.listeners('close').length, 2); // A.onclose, A.cleanup
-assert.equal(d.listeners('end').length, 2);   // B.onend, B.cleanup
-assert.equal(d.listeners('close').length, 3); // A.cleanup, B.onclose, B.cleanup
-assert.equal(w.listeners('end').length, 0);
-assert.equal(w.listeners('close').length, 1); // B.cleanup
-
-r.emit('end');
-assert.equal(d.endCalls, 1);
-assert.equal(w.endCalls, 0);
-assert.equal(r.listeners('end').length, 0);
-assert.equal(r.listeners('close').length, 0);
-assert.equal(d.listeners('end').length, 2);   // B.onend, B.cleanup
-assert.equal(d.listeners('close').length, 2); // B.onclose, B.cleanup
-assert.equal(w.listeners('end').length, 0);
-assert.equal(w.listeners('close').length, 1); // B.cleanup
-
-d.emit('end');
-assert.equal(d.endCalls, 1);
-assert.equal(w.endCalls, 1);
-assert.equal(r.listeners('end').length, 0);
-assert.equal(r.listeners('close').length, 0);
-assert.equal(d.listeners('end').length, 0);
-assert.equal(d.listeners('close').length, 0);
-assert.equal(w.listeners('end').length, 0);
-assert.equal(w.listeners('close').length, 0);
diff --git a/test/simple/test-stream-pipe-error-handling.js b/test/simple/test-stream-pipe-error-handling.js
index c5d724b..c7d6b7d 100644
--- a/test/simple/test-stream-pipe-error-handling.js
+++ b/test/simple/test-stream-pipe-error-handling.js
@@ -21,7 +21,7 @@
 
 var common = require('../common');
 var assert = require('assert');
-var Stream = require('stream').Stream;
+var Stream = require('../../').Stream;
 
 (function testErrorListenerCatches() {
   var source = new Stream();
diff --git a/test/simple/test-stream-pipe-event.js b/test/simple/test-stream-pipe-event.js
index cb9d5fe..56f8d61 100644
--- a/test/simple/test-stream-pipe-event.js
+++ b/test/simple/test-stream-pipe-event.js
@@ -20,7 +20,7 @@
 // USE OR OTHER DEALINGS IN THE SOFTWARE.
 
 var common = require('../common');
-var stream = require('stream');
+var stream = require('../../');
 var assert = require('assert');
 var util = require('util');
 
diff --git a/test/simple/test-stream-push-order.js b/test/simple/test-stream-push-order.js
index f2e6ec2..a5c9bf9 100644
--- a/test/simple/test-stream-push-order.js
+++ b/test/simple/test-stream-push-order.js
@@ -20,7 +20,7 @@
 // USE OR OTHER DEALINGS IN THE SOFTWARE.
 
 var common = require('../common.js');
-var Readable = require('stream').Readable;
+var Readable = require('../../').Readable;
 var assert = require('assert');
 
 var s = new Readable({
diff --git a/test/simple/test-stream-push-strings.js b/test/simple/test-stream-push-strings.js
index 06f43dc..1701a9a 100644
--- a/test/simple/test-stream-push-strings.js
+++ b/test/simple/test-stream-push-strings.js
@@ -22,7 +22,7 @@
 var common = require('../common');
 var assert = require('assert');
 
-var Readable = require('stream').Readable;
+var Readable = require('../../').Readable;
 var util = require('util');
 
 util.inherits(MyStream, Readable);
diff --git a/test/simple/test-stream-readable-event.js b/test/simple/test-stream-readable-event.js
index ba6a577..a8e6f7b 100644
--- a/test/simple/test-stream-readable-event.js
+++ b/test/simple/test-stream-readable-event.js
@@ -22,7 +22,7 @@
 var common = require('../common');
 var assert = require('assert');
 
-var Readable = require('stream').Readable;
+var Readable = require('../../').Readable;
 
 (function first() {
   // First test, not reading when the readable is added.
diff --git a/test/simple/test-stream-readable-flow-recursion.js b/test/simple/test-stream-readable-flow-recursion.js
index 2891ad6..11689ba 100644
--- a/test/simple/test-stream-readable-flow-recursion.js
+++ b/test/simple/test-stream-readable-flow-recursion.js
@@ -27,7 +27,7 @@ var assert = require('assert');
 // more data continuously, but without triggering a nextTick
 // warning or RangeError.
 
-var Readable = require('stream').Readable;
+var Readable = require('../../').Readable;
 
 // throw an error if we trigger a nextTick warning.
 process.throwDeprecation = true;
diff --git a/test/simple/test-stream-unshift-empty-chunk.js b/test/simple/test-stream-unshift-empty-chunk.js
index 0c96476..7827538 100644
--- a/test/simple/test-stream-unshift-empty-chunk.js
+++ b/test/simple/test-stream-unshift-empty-chunk.js
@@ -24,7 +24,7 @@ var assert = require('assert');
 
 // This test verifies that stream.unshift(Buffer(0)) or 
 // stream.unshift('') does not set state.reading=false.
-var Readable = require('stream').Readable;
+var Readable = require('../../').Readable;
 
 var r = new Readable();
 var nChunks = 10;
diff --git a/test/simple/test-stream-unshift-read-race.js b/test/simple/test-stream-unshift-read-race.js
index 83fd9fa..17c18aa 100644
--- a/test/simple/test-stream-unshift-read-race.js
+++ b/test/simple/test-stream-unshift-read-race.js
@@ -29,7 +29,7 @@ var assert = require('assert');
 // 3. push() after the EOF signaling null is an error.
 // 4. _read() is not called after pushing the EOF null chunk.
 
-var stream = require('stream');
+var stream = require('../../');
 var hwm = 10;
 var r = stream.Readable({ highWaterMark: hwm });
 var chunks = 10;
@@ -51,7 +51,14 @@ r._read = function(n) {
 
   function push(fast) {
     assert(!pushedNull, 'push() after null push');
-    var c = pos >= data.length ? null : data.slice(pos, pos + n);
+    var c;
+    if (pos >= data.length)
+      c = null;
+    else {
+      if (n + pos > data.length)
+        n = data.length - pos;
+      c = data.slice(pos, pos + n);
+    }
     pushedNull = c === null;
     if (fast) {
       pos += n;
diff --git a/test/simple/test-stream-writev.js b/test/simple/test-stream-writev.js
index 5b49e6e..b5321f3 100644
--- a/test/simple/test-stream-writev.js
+++ b/test/simple/test-stream-writev.js
@@ -22,7 +22,7 @@
 var common = require('../common');
 var assert = require('assert');
 
-var stream = require('stream');
+var stream = require('../../');
 
 var queue = [];
 for (var decode = 0; decode < 2; decode++) {
diff --git a/test/simple/test-stream2-basic.js b/test/simple/test-stream2-basic.js
index 3814bf0..248c1be 100644
--- a/test/simple/test-stream2-basic.js
+++ b/test/simple/test-stream2-basic.js
@@ -21,7 +21,7 @@
 
 
 var common = require('../common.js');
-var R = require('_stream_readable');
+var R = require('../../lib/_stream_readable');
 var assert = require('assert');
 
 var util = require('util');
diff --git a/test/simple/test-stream2-compatibility.js b/test/simple/test-stream2-compatibility.js
index 6cdd4e9..f0fa84b 100644
--- a/test/simple/test-stream2-compatibility.js
+++ b/test/simple/test-stream2-compatibility.js
@@ -21,7 +21,7 @@
 
 
 var common = require('../common.js');
-var R = require('_stream_readable');
+var R = require('../../lib/_stream_readable');
 var assert = require('assert');
 
 var util = require('util');
diff --git a/test/simple/test-stream2-finish-pipe.js b/test/simple/test-stream2-finish-pipe.js
index 39b274f..006a19b 100644
--- a/test/simple/test-stream2-finish-pipe.js
+++ b/test/simple/test-stream2-finish-pipe.js
@@ -20,7 +20,7 @@
 // USE OR OTHER DEALINGS IN THE SOFTWARE.
 
 var common = require('../common.js');
-var stream = require('stream');
+var stream = require('../../');
 var Buffer = require('buffer').Buffer;
 
 var r = new stream.Readable();
diff --git a/test/simple/test-stream2-fs.js b/test/simple/test-stream2-fs.js
deleted file mode 100644
index e162406..0000000
--- a/test/simple/test-stream2-fs.js
+++ /dev/null
@@ -1,72 +0,0 @@
-// Copyright Joyent, Inc. and other Node contributors.
-//
-// Permission is hereby granted, free of charge, to any person obtaining a
-// copy of this software and associated documentation files (the
-// "Software"), to deal in the Software without restriction, including
-// without limitation the rights to use, copy, modify, merge, publish,
-// distribute, sublicense, and/or sell copies of the Software, and to permit
-// persons to whom the Software is furnished to do so, subject to the
-// following conditions:
-//
-// The above copyright notice and this permission notice shall be included
-// in all copies or substantial portions of the Software.
-//
-// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
-// OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
-// MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN
-// NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM,
-// DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
-// OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE
-// USE OR OTHER DEALINGS IN THE SOFTWARE.
-
-
-var common = require('../common.js');
-var R = require('_stream_readable');
-var assert = require('assert');
-
-var fs = require('fs');
-var FSReadable = fs.ReadStream;
-
-var path = require('path');
-var file = path.resolve(common.fixturesDir, 'x1024.txt');
-
-var size = fs.statSync(file).size;
-
-var expectLengths = [1024];
-
-var util = require('util');
-var Stream = require('stream');
-
-util.inherits(TestWriter, Stream);
-
-function TestWriter() {
-  Stream.apply(this);
-  this.buffer = [];
-  this.length = 0;
-}
-
-TestWriter.prototype.write = function(c) {
-  this.buffer.push(c.toString());
-  this.length += c.length;
-  return true;
-};
-
-TestWriter.prototype.end = function(c) {
-  if (c) this.buffer.push(c.toString());
-  this.emit('results', this.buffer);
-}
-
-var r = new FSReadable(file);
-var w = new TestWriter();
-
-w.on('results', function(res) {
-  console.error(res, w.length);
-  assert.equal(w.length, size);
-  var l = 0;
-  assert.deepEqual(res.map(function (c) {
-    return c.length;
-  }), expectLengths);
-  console.log('ok');
-});
-
-r.pipe(w);
diff --git a/test/simple/test-stream2-httpclient-response-end.js b/test/simple/test-stream2-httpclient-response-end.js
deleted file mode 100644
index 15cffc2..0000000
--- a/test/simple/test-stream2-httpclient-response-end.js
+++ /dev/null
@@ -1,52 +0,0 @@
-// Copyright Joyent, Inc. and other Node contributors.
-//
-// Permission is hereby granted, free of charge, to any person obtaining a
-// copy of this software and associated documentation files (the
-// "Software"), to deal in the Software without restriction, including
-// without limitation the rights to use, copy, modify, merge, publish,
-// distribute, sublicense, and/or sell copies of the Software, and to permit
-// persons to whom the Software is furnished to do so, subject to the
-// following conditions:
-//
-// The above copyright notice and this permission notice shall be included
-// in all copies or substantial portions of the Software.
-//
-// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
-// OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
-// MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN
-// NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM,
-// DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
-// OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE
-// USE OR OTHER DEALINGS IN THE SOFTWARE.
-
-var common = require('../common.js');
-var assert = require('assert');
-var http = require('http');
-var msg = 'Hello';
-var readable_event = false;
-var end_event = false;
-var server = http.createServer(function(req, res) {
-  res.writeHead(200, {'Content-Type': 'text/plain'});
-  res.end(msg);
-}).listen(common.PORT, function() {
-  http.get({port: common.PORT}, function(res) {
-    var data = '';
-    res.on('readable', function() {
-      console.log('readable event');
-      readable_event = true;
-      data += res.read();
-    });
-    res.on('end', function() {
-      console.log('end event');
-      end_event = true;
-      assert.strictEqual(msg, data);
-      server.close();
-    });
-  });
-});
-
-process.on('exit', function() {
-  assert(readable_event);
-  assert(end_event);
-});
-
diff --git a/test/simple/test-stream2-large-read-stall.js b/test/simple/test-stream2-large-read-stall.js
index 2fbfbca..667985b 100644
--- a/test/simple/test-stream2-large-read-stall.js
+++ b/test/simple/test-stream2-large-read-stall.js
@@ -30,7 +30,7 @@ var PUSHSIZE = 20;
 var PUSHCOUNT = 1000;
 var HWM = 50;
 
-var Readable = require('stream').Readable;
+var Readable = require('../../').Readable;
 var r = new Readable({
   highWaterMark: HWM
 });
@@ -39,23 +39,23 @@ var rs = r._readableState;
 r._read = push;
 
 r.on('readable', function() {
-  console.error('>> readable');
+  //console.error('>> readable');
   do {
-    console.error('  > read(%d)', READSIZE);
+    //console.error('  > read(%d)', READSIZE);
     var ret = r.read(READSIZE);
-    console.error('  < %j (%d remain)', ret && ret.length, rs.length);
+    //console.error('  < %j (%d remain)', ret && ret.length, rs.length);
   } while (ret && ret.length === READSIZE);
 
-  console.error('<< after read()',
-                ret && ret.length,
-                rs.needReadable,
-                rs.length);
+  //console.error('<< after read()',
+  //              ret && ret.length,
+  //              rs.needReadable,
+  //              rs.length);
 });
 
 var endEmitted = false;
 r.on('end', function() {
   endEmitted = true;
-  console.error('end');
+  //console.error('end');
 });
 
 var pushes = 0;
@@ -64,11 +64,11 @@ function push() {
     return;
 
   if (pushes++ === PUSHCOUNT) {
-    console.error('   push(EOF)');
+    //console.error('   push(EOF)');
     return r.push(null);
   }
 
-  console.error('   push #%d', pushes);
+  //console.error('   push #%d', pushes);
   if (r.push(new Buffer(PUSHSIZE)))
     setTimeout(push);
 }
diff --git a/test/simple/test-stream2-objects.js b/test/simple/test-stream2-objects.js
index 3e6931d..ff47d89 100644
--- a/test/simple/test-stream2-objects.js
+++ b/test/simple/test-stream2-objects.js
@@ -21,8 +21,8 @@
 
 
 var common = require('../common.js');
-var Readable = require('_stream_readable');
-var Writable = require('_stream_writable');
+var Readable = require('../../lib/_stream_readable');
+var Writable = require('../../lib/_stream_writable');
 var assert = require('assert');
 
 // tiny node-tap lookalike.
diff --git a/test/simple/test-stream2-pipe-error-handling.js b/test/simple/test-stream2-pipe-error-handling.js
index cf7531c..e3f3e4e 100644
--- a/test/simple/test-stream2-pipe-error-handling.js
+++ b/test/simple/test-stream2-pipe-error-handling.js
@@ -21,7 +21,7 @@
 
 var common = require('../common');
 var assert = require('assert');
-var stream = require('stream');
+var stream = require('../../');
 
 (function testErrorListenerCatches() {
   var count = 1000;
diff --git a/test/simple/test-stream2-pipe-error-once-listener.js b/test/simple/test-stream2-pipe-error-once-listener.js
index 5e8e3cb..53b2616 100755
--- a/test/simple/test-stream2-pipe-error-once-listener.js
+++ b/test/simple/test-stream2-pipe-error-once-listener.js
@@ -24,7 +24,7 @@ var common = require('../common.js');
 var assert = require('assert');
 
 var util = require('util');
-var stream = require('stream');
+var stream = require('../../');
 
 
 var Read = function() {
diff --git a/test/simple/test-stream2-push.js b/test/simple/test-stream2-push.js
index b63edc3..eb2b0e9 100644
--- a/test/simple/test-stream2-push.js
+++ b/test/simple/test-stream2-push.js
@@ -20,7 +20,7 @@
 // USE OR OTHER DEALINGS IN THE SOFTWARE.
 
 var common = require('../common.js');
-var stream = require('stream');
+var stream = require('../../');
 var Readable = stream.Readable;
 var Writable = stream.Writable;
 var assert = require('assert');
diff --git a/test/simple/test-stream2-read-sync-stack.js b/test/simple/test-stream2-read-sync-stack.js
index e8a7305..9740a47 100644
--- a/test/simple/test-stream2-read-sync-stack.js
+++ b/test/simple/test-stream2-read-sync-stack.js
@@ -21,7 +21,7 @@
 
 var common = require('../common');
 var assert = require('assert');
-var Readable = require('stream').Readable;
+var Readable = require('../../').Readable;
 var r = new Readable();
 var N = 256 * 1024;
 
diff --git a/test/simple/test-stream2-readable-empty-buffer-no-eof.js b/test/simple/test-stream2-readable-empty-buffer-no-eof.js
index cd30178..4b1659d 100644
--- a/test/simple/test-stream2-readable-empty-buffer-no-eof.js
+++ b/test/simple/test-stream2-readable-empty-buffer-no-eof.js
@@ -22,10 +22,9 @@
 var common = require('../common');
 var assert = require('assert');
 
-var Readable = require('stream').Readable;
+var Readable = require('../../').Readable;
 
 test1();
-test2();
 
 function test1() {
   var r = new Readable();
@@ -88,31 +87,3 @@ function test1() {
     console.log('ok');
   });
 }
-
-function test2() {
-  var r = new Readable({ encoding: 'base64' });
-  var reads = 5;
-  r._read = function(n) {
-    if (!reads--)
-      return r.push(null); // EOF
-    else
-      return r.push(new Buffer('x'));
-  };
-
-  var results = [];
-  function flow() {
-    var chunk;
-    while (null !== (chunk = r.read()))
-      results.push(chunk + '');
-  }
-  r.on('readable', flow);
-  r.on('end', function() {
-    results.push('EOF');
-  });
-  flow();
-
-  process.on('exit', function() {
-    assert.deepEqual(results, [ 'eHh4', 'eHg=', 'EOF' ]);
-    console.log('ok');
-  });
-}
diff --git a/test/simple/test-stream2-readable-from-list.js b/test/simple/test-stream2-readable-from-list.js
index 7c96ffe..04a96f5 100644
--- a/test/simple/test-stream2-readable-from-list.js
+++ b/test/simple/test-stream2-readable-from-list.js
@@ -21,7 +21,7 @@
 
 var assert = require('assert');
 var common = require('../common.js');
-var fromList = require('_stream_readable')._fromList;
+var fromList = require('../../lib/_stream_readable')._fromList;
 
 // tiny node-tap lookalike.
 var tests = [];
diff --git a/test/simple/test-stream2-readable-legacy-drain.js b/test/simple/test-stream2-readable-legacy-drain.js
index 675da8e..51fd3d5 100644
--- a/test/simple/test-stream2-readable-legacy-drain.js
+++ b/test/simple/test-stream2-readable-legacy-drain.js
@@ -22,7 +22,7 @@
 var common = require('../common');
 var assert = require('assert');
 
-var Stream = require('stream');
+var Stream = require('../../');
 var Readable = Stream.Readable;
 
 var r = new Readable();
diff --git a/test/simple/test-stream2-readable-non-empty-end.js b/test/simple/test-stream2-readable-non-empty-end.js
index 7314ae7..c971898 100644
--- a/test/simple/test-stream2-readable-non-empty-end.js
+++ b/test/simple/test-stream2-readable-non-empty-end.js
@@ -21,7 +21,7 @@
 
 var assert = require('assert');
 var common = require('../common.js');
-var Readable = require('_stream_readable');
+var Readable = require('../../lib/_stream_readable');
 
 var len = 0;
 var chunks = new Array(10);
diff --git a/test/simple/test-stream2-readable-wrap-empty.js b/test/simple/test-stream2-readable-wrap-empty.js
index 2e5cf25..fd8a3dc 100644
--- a/test/simple/test-stream2-readable-wrap-empty.js
+++ b/test/simple/test-stream2-readable-wrap-empty.js
@@ -22,7 +22,7 @@
 var common = require('../common');
 var assert = require('assert');
 
-var Readable = require('_stream_readable');
+var Readable = require('../../lib/_stream_readable');
 var EE = require('events').EventEmitter;
 
 var oldStream = new EE();
diff --git a/test/simple/test-stream2-readable-wrap.js b/test/simple/test-stream2-readable-wrap.js
index 90eea01..6b177f7 100644
--- a/test/simple/test-stream2-readable-wrap.js
+++ b/test/simple/test-stream2-readable-wrap.js
@@ -22,8 +22,8 @@
 var common = require('../common');
 var assert = require('assert');
 
-var Readable = require('_stream_readable');
-var Writable = require('_stream_writable');
+var Readable = require('../../lib/_stream_readable');
+var Writable = require('../../lib/_stream_writable');
 var EE = require('events').EventEmitter;
 
 var testRuns = 0, completedRuns = 0;
diff --git a/test/simple/test-stream2-set-encoding.js b/test/simple/test-stream2-set-encoding.js
index 5d2c32a..685531b 100644
--- a/test/simple/test-stream2-set-encoding.js
+++ b/test/simple/test-stream2-set-encoding.js
@@ -22,7 +22,7 @@
 
 var common = require('../common.js');
 var assert = require('assert');
-var R = require('_stream_readable');
+var R = require('../../lib/_stream_readable');
 var util = require('util');
 
 // tiny node-tap lookalike.
diff --git a/test/simple/test-stream2-transform.js b/test/simple/test-stream2-transform.js
index 9c9ddd8..a0cacc6 100644
--- a/test/simple/test-stream2-transform.js
+++ b/test/simple/test-stream2-transform.js
@@ -21,8 +21,8 @@
 
 var assert = require('assert');
 var common = require('../common.js');
-var PassThrough = require('_stream_passthrough');
-var Transform = require('_stream_transform');
+var PassThrough = require('../../').PassThrough;
+var Transform = require('../../').Transform;
 
 // tiny node-tap lookalike.
 var tests = [];
diff --git a/test/simple/test-stream2-unpipe-drain.js b/test/simple/test-stream2-unpipe-drain.js
index d66dc3c..365b327 100644
--- a/test/simple/test-stream2-unpipe-drain.js
+++ b/test/simple/test-stream2-unpipe-drain.js
@@ -22,7 +22,7 @@
 
 var common = require('../common.js');
 var assert = require('assert');
-var stream = require('stream');
+var stream = require('../../');
 var crypto = require('crypto');
 
 var util = require('util');
diff --git a/test/simple/test-stream2-unpipe-leak.js b/test/simple/test-stream2-unpipe-leak.js
index 99f8746..17c92ae 100644
--- a/test/simple/test-stream2-unpipe-leak.js
+++ b/test/simple/test-stream2-unpipe-leak.js
@@ -22,7 +22,7 @@
 
 var common = require('../common.js');
 var assert = require('assert');
-var stream = require('stream');
+var stream = require('../../');
 
 var chunk = new Buffer('hallo');
 
diff --git a/test/simple/test-stream2-writable.js b/test/simple/test-stream2-writable.js
index 704100c..209c3a6 100644
--- a/test/simple/test-stream2-writable.js
+++ b/test/simple/test-stream2-writable.js
@@ -20,8 +20,8 @@
 // USE OR OTHER DEALINGS IN THE SOFTWARE.
 
 var common = require('../common.js');
-var W = require('_stream_writable');
-var D = require('_stream_duplex');
+var W = require('../../').Writable;
+var D = require('../../').Duplex;
 var assert = require('assert');
 
 var util = require('util');
diff --git a/test/simple/test-stream3-pause-then-read.js b/test/simple/test-stream3-pause-then-read.js
index b91bde3..2f72c15 100644
--- a/test/simple/test-stream3-pause-then-read.js
+++ b/test/simple/test-stream3-pause-then-read.js
@@ -22,7 +22,7 @@
 var common = require('../common');
 var assert = require('assert');
 
-var stream = require('stream');
+var stream = require('../../');
 var Readable = stream.Readable;
 var Writable = stream.Writable;