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node_modules/stream-browserify/test/buf.js

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+var path = require('path');
+var test = require('tape');
+var Buffer = require('safe-buffer').Buffer;
+
+var Writable = require('../').Writable;
+var inherits = require('inherits');
+
+inherits(TestWritable, Writable);
+
+function TestWritable(opt) {
+    if (!(this instanceof TestWritable))
+        return new TestWritable(opt);
+    Writable.call(this, opt);
+    this._written = [];
+}
+
+TestWritable.prototype._write = function(chunk, encoding, cb) {
+    this._written.push(chunk);
+    cb();
+};
+
+var buf = Buffer.from([ 88 ]);
+
+test('.writable writing ArrayBuffer', function(t) {
+    var writable = new TestWritable();
+    
+    writable.write(buf);
+    writable.end();
+    
+    t.equal(writable._written.length, 1);
+    t.equal(writable._written[0].toString(), 'X')
+    t.end()
+});