diff --git a/test/hash.php b/test/hash.php
new file mode 100644
index 0000000..a7652b3
--- /dev/null
+++ b/test/hash.php
@@ -0,0 +1,59 @@
+<?php
+
+define("BCRYPT", true);
+define("BCRYPT_ROUNDS", 12);
+
+require_once __DIR__ . '/../weave_hash.php';
+
+$pwd = "asdfASDFghjkGHJK2134$%&";
+
+try {
+	$hash = WeaveHashFactory::factory();
+	$time_start = microtime(true);
+	echo $hash->hash($pwd) . "\n";
+	$time = microtime(true) - $time_start;
+	echo "Hashing took " . $time . " seconds\n";
+
+	if (!$hash->verify($pwd, '$2a$12$O2Bn6lDUYS5NDIJ1uCZjGezSI/jeGTD7Ow0bd3PFMRBcGIqfqI4Oi')) {
+		throw new Exception("bcrypt hash compare failed");
+	}
+
+	if (!$hash->needsUpdate(md5($pwd))) {
+		throw new Exception("bcrypt hash needs update.");
+	}
+
+	if ($hash->needsUpdate('$2a$12$O2Bn6lDUYS5NDIJ1uCZjGezSI/jeGTD7Ow0bd3PFMRBcGIqfqI4Oi')) {
+		throw new Exception("bcrypt hash doesn't needs update.");
+	}
+	
+	if (!$hash->verify($pwd, 'a96b71c678b01b98b9f7a0d8ec4b633b')) {
+		throw new Exception("bcrypt hash compare with md5 failed");
+	}
+
+	$hash2 = new WeaveHashBCrypt(6);
+
+	if (!$hash2->needsUpdate('$2a$12$O2Bn6lDUYS5NDIJ1uCZjGezSI/jeGTD7Ow0bd3PFMRBcGIqfqI4Oi')) {
+		throw new Exception("bcrypt hash needs update because of different rounds.");
+	}
+
+	$hashmd5 = new WeaveHashMD5();
+	if (!$hashmd5->verify($pwd, 'a96b71c678b01b98b9f7a0d8ec4b633b')) {
+		throw new Exception("md5 hash compare failed");
+	}
+
+	if (!$hashmd5->needsUpdate('$2a$12$O2Bn6lDUYS5NDIJ1uCZjGezSI/jeGTD7Ow0bd3PFMRBcGIqfqI4Oi')) {
+		throw new Exception("md5 hash needs update.");
+	}
+
+	if ($hashmd5->needsUpdate(md5($pwd))) {
+		throw new Exception("md5 hash doesn't need update.");
+	}
+
+	echo "all tests ok\n";
+	exit(0);
+} catch(Exception $e) {
+	echo $e->getMessage() . "\n";
+	exit(1);
+}
+
+?>
\ No newline at end of file