add node_modules to address #4364

6 files changed, 306 insertions, 0 deletions

diff --git a/node_modules/lazystream/test/data.md b/node_modules/lazystream/test/data.md
new file mode 100644
index 000000000..fc4822201
--- /dev/null
+++ b/node_modules/lazystream/test/data.md
@@ -0,0 +1,13 @@
+> Never mind, hey, this is really exciting, so much to find out about, so much to
+> look forward to, I'm quite dizzy with anticipation . . . Or is it the wind?
+> 
+> There really is a lot of that now, isn't there? And wow! Hey! What's this thing
+> suddenly coming toward me very fast? Very, very fast. So big and flat and round,
+> it needs a big wide-sounding name like . . . ow . . . ound . . . round . . .
+> ground! That's it! That's a good name- ground!
+>
+> I wonder if it will be friends with me?
+>
+> Hello Ground!
+
+And the rest, after a sudden wet thud, was silence.
diff --git a/node_modules/lazystream/test/fs_test.js b/node_modules/lazystream/test/fs_test.js
new file mode 100644
index 000000000..149b1c4a0
--- /dev/null
+++ b/node_modules/lazystream/test/fs_test.js
@@ -0,0 +1,69 @@
+
+var stream = require('../lib/lazystream');
+var fs = require('fs');
+var tmpDir = 'test/tmp/';
+var readFile = 'test/data.md';
+var writeFile = tmpDir + 'data.md';
+
+exports.fs = {
+  readwrite: function(test) {
+    var readfd, writefd;
+
+    var readable = new stream.Readable(function() {
+       return fs.createReadStream(readFile)
+        .on('open', function(fd) {
+          readfd = fd;
+        })
+        .on('close', function() {
+           readfd = undefined;
+           step();
+        });
+    });
+
+    var writable = new stream.Writable(function() {
+      return fs.createWriteStream(writeFile)
+        .on('open', function(fd) {
+          writefd = fd;
+        })
+        .on('close', function() {
+          writefd = undefined;
+           step();
+        });
+    });
+
+    test.expect(3);
+
+    test.equal(readfd, undefined, 'Input file should not be opened until read');
+    test.equal(writefd, undefined, 'Output file should not be opened until write');
+
+    if (!fs.existsSync(tmpDir)) {
+      fs.mkdirSync(tmpDir);
+    }
+    if (fs.existsSync(writeFile)) {
+      fs.unlinkSync(writeFile);
+    }
+
+    readable.on('end', function() { step(); });
+    writable.on('end', function() { step(); });
+
+    var steps = 0;
+    function step() {
+      steps += 1;
+      if (steps == 4) {
+        var input = fs.readFileSync(readFile);
+        var output = fs.readFileSync(writeFile);
+
+        test.ok(input >= output && input <= output, 'Should be equal');
+
+        fs.unlinkSync(writeFile);
+        fs.rmdirSync(tmpDir);
+
+        test.done();
+      }
+    };
+
+    readable.pipe(writable);
+  }
+};
+
+
diff --git a/node_modules/lazystream/test/helper.js b/node_modules/lazystream/test/helper.js
new file mode 100644
index 000000000..9d41191da
--- /dev/null
+++ b/node_modules/lazystream/test/helper.js
@@ -0,0 +1,39 @@
+
+var _Readable = require('readable-stream/readable');
+var _Writable = require('readable-stream/writable');
+var util = require('util');
+
+module.exports = {
+  DummyReadable: DummyReadable,
+  DummyWritable: DummyWritable
+};
+
+function DummyReadable(strings) {
+  _Readable.call(this);
+  this.strings = strings;
+  this.emit('readable');
+}
+
+util.inherits(DummyReadable, _Readable);
+
+DummyReadable.prototype._read = function _read(n) {
+  if (this.strings.length) {
+    this.push(new Buffer(this.strings.shift()));
+  } else {
+    this.push(null);
+  }
+};
+
+function DummyWritable(strings) {
+  _Writable.call(this);
+  this.strings = strings;
+  this.emit('writable');
+}
+
+util.inherits(DummyWritable, _Writable);
+
+DummyWritable.prototype._write = function _write(chunk, encoding, callback) {
+  this.strings.push(chunk.toString());
+  if (callback) callback();
+};
+
diff --git a/node_modules/lazystream/test/pipe_test.js b/node_modules/lazystream/test/pipe_test.js
new file mode 100644
index 000000000..7129e3591
--- /dev/null
+++ b/node_modules/lazystream/test/pipe_test.js
@@ -0,0 +1,36 @@
+
+var stream = require('../lib/lazystream');
+var helper = require('./helper');
+
+exports.pipe = {
+  readwrite: function(test) {
+    var expected = [ 'line1\n', 'line2\n' ];
+    var actual = [];
+    var readableInstantiated = false;
+    var writableInstantiated = false;
+
+    test.expect(3);
+
+    var readable = new stream.Readable(function() {
+      readableInstantiated = true;
+      return new helper.DummyReadable([].concat(expected));
+    });
+
+    var writable = new stream.Writable(function() {
+      writableInstantiated = true;
+      return new helper.DummyWritable(actual);
+    });
+
+    test.equal(readableInstantiated, false, 'DummyReadable should only be instantiated when it is needed');
+    test.equal(writableInstantiated, false, 'DummyWritable should only be instantiated when it is needed');
+
+    writable.on('end', function() {
+      test.equal(actual.join(''), expected.join(''), 'Piping on demand streams should keep data intact');
+      test.done();
+    });
+    
+    readable.pipe(writable);
+  }
+};
+
+
diff --git a/node_modules/lazystream/test/readable_test.js b/node_modules/lazystream/test/readable_test.js
new file mode 100644
index 000000000..9ae06368d
--- /dev/null
+++ b/node_modules/lazystream/test/readable_test.js
@@ -0,0 +1,90 @@
+
+var Readable = require('../lib/lazystream').Readable;
+var DummyReadable = require('./helper').DummyReadable;
+
+exports.readable = {
+  dummy: function(test) {
+    var expected = [ 'line1\n', 'line2\n' ];
+    var actual = [];
+
+    test.expect(1);
+
+    new DummyReadable([].concat(expected))
+      .on('data', function(chunk) {
+        actual.push(chunk.toString());
+      })
+      .on('end', function() {
+        test.equal(actual.join(''), expected.join(''), 'DummyReadable should produce the data it was created with');
+        test.done();
+      });
+  },
+  options: function(test) {
+    test.expect(3);
+
+    var readable = new Readable(function(options) {
+       test.ok(this instanceof Readable, "Readable should bind itself to callback's this");
+       test.equal(options.encoding, "utf-8", "Readable should make options accessible to callback");
+       this.ok = true;
+       return new DummyReadable(["test"]);
+    }, {encoding: "utf-8"});
+
+    readable.read(4);
+
+    test.ok(readable.ok);
+
+    test.done();
+  },
+  streams2: function(test) {
+    var expected = [ 'line1\n', 'line2\n' ];
+    var actual = [];
+    var instantiated = false;
+
+    test.expect(2);
+
+    var readable = new Readable(function() {
+      instantiated = true;
+      return new DummyReadable([].concat(expected));
+    });
+
+    test.equal(instantiated, false, 'DummyReadable should only be instantiated when it is needed');
+
+    readable.on('readable', function() {
+      var chunk;
+      while ((chunk = readable.read())) {
+        actual.push(chunk.toString());
+      }
+    });
+    readable.on('end', function() {
+      test.equal(actual.join(''), expected.join(''), 'Readable should not change the data of the underlying stream');
+      test.done();
+    });
+
+    readable.read(0);
+  },
+  resume: function(test) {
+    var expected = [ 'line1\n', 'line2\n' ];
+    var actual = [];
+    var instantiated = false;
+
+    test.expect(2);
+
+    var readable = new Readable(function() {
+      instantiated = true;
+      return new DummyReadable([].concat(expected));
+    });
+
+    readable.pause();
+
+    readable.on('data', function(chunk) {
+      actual.push(chunk.toString());
+    });
+    readable.on('end', function() {
+      test.equal(actual.join(''), expected.join(''), 'Readable should not change the data of the underlying stream');
+      test.done();
+    });
+
+    test.equal(instantiated, false, 'DummyReadable should only be instantiated when it is needed');
+
+    readable.resume();
+  }
+};
diff --git a/node_modules/lazystream/test/writable_test.js b/node_modules/lazystream/test/writable_test.js
new file mode 100644
index 000000000..a66384564
--- /dev/null
+++ b/node_modules/lazystream/test/writable_test.js
@@ -0,0 +1,59 @@
+
+var Writable = require('../lib/lazystream').Writable;
+var DummyWritable = require('./helper').DummyWritable;
+
+exports.writable = {
+  options: function(test) {
+    test.expect(3);
+
+    var writable = new Writable(function(options) {
+       test.ok(this instanceof Writable, "Writable should bind itself to callback's this");
+       test.equal(options.encoding, "utf-8", "Writable should make options accessible to callback");
+       this.ok = true;
+       return new DummyWritable([]);
+    }, {encoding: "utf-8"});
+
+    writable.write("test");
+
+    test.ok(writable.ok);
+
+    test.done();
+  },
+  dummy: function(test) {
+    var expected = [ 'line1\n', 'line2\n' ];
+    var actual = [];
+    
+    test.expect(0);
+
+    var dummy = new DummyWritable(actual);
+
+    expected.forEach(function(item) {
+      dummy.write(new Buffer(item));
+    });
+    test.done();
+  },
+  streams2: function(test) {
+    var expected = [ 'line1\n', 'line2\n' ];
+    var actual = [];
+    var instantiated = false;
+
+    test.expect(2);
+
+    var writable = new Writable(function() {
+      instantiated = true;
+      return new DummyWritable(actual);
+    });
+
+    test.equal(instantiated, false, 'DummyWritable should only be instantiated when it is needed');
+
+    writable.on('end', function() {
+      test.equal(actual.join(''), expected.join(''), 'Writable should not change the data of the underlying stream');
+      test.done();
+    });
+
+    expected.forEach(function(item) {
+      writable.write(new Buffer(item));
+    });
+    writable.end();
+  }
+};