From 2d0df035ea68e25a2eca7121e294bb0c054154c8 Mon Sep 17 00:00:00 2001
From: Davis King <davis@dlib.net>
Date: Sat, 28 May 2011 17:44:52 -0400
Subject: [PATCH] Added a unit test for the new hashing functions.

--HG--
rename : dlib/test/bridge.cpp => dlib/test/hash.cpp
---
 dlib/test/CMakeLists.txt |  1 +
 dlib/test/hash.cpp       | 77 ++++++++++++++++++++++++++++++++++++++++
 dlib/test/makefile       |  1 +
 3 files changed, 79 insertions(+)
 create mode 100644 dlib/test/hash.cpp

diff --git a/dlib/test/CMakeLists.txt b/dlib/test/CMakeLists.txt
index fabc79470..613a9099e 100644
--- a/dlib/test/CMakeLists.txt
+++ b/dlib/test/CMakeLists.txt
@@ -45,6 +45,7 @@ set (tests
    entropy_encoder_model.cpp
    geometry.cpp
    graph.cpp
+   hash.cpp
    hash_map.cpp
    hash_set.cpp
    hash_table.cpp
diff --git a/dlib/test/hash.cpp b/dlib/test/hash.cpp
new file mode 100644
index 000000000..94e579909
--- /dev/null
+++ b/dlib/test/hash.cpp
@@ -0,0 +1,77 @@
+// Copyright (C) 2011  Davis E. King (davis@dlib.net)
+// License: Boost Software License   See LICENSE.txt for the full license.
+
+#include <sstream>
+#include <string>
+#include <cstdlib>
+#include <ctime>
+#include <dlib/hash.h>
+
+#include "tester.h"
+
+namespace  
+{
+    using namespace test;
+    using namespace dlib;
+    using namespace std;
+
+    logger dlog("test.hash");
+
+
+    class test_hash : public tester
+    {
+    public:
+        test_hash (
+        ) :
+            tester ("test_hash",
+                    "Runs tests on the hash routines.")
+        {}
+
+        void perform_test (
+        )
+        {
+            std::string str1 = "some random string";
+            std::wstring str2 = L"another String!";
+
+            std::vector<unsigned char> v(4);
+            v[0] = 'c';
+            v[1] = 'a';
+            v[2] = 't';
+            v[3] = '!';
+
+            std::map<unsigned char, unsigned char> m;
+            m['c'] = 'C';
+            m['a'] = 'A';
+            m['t'] = 'T';
+
+            dlog << LINFO << "hash(str1): "<< hash(str1);
+            dlog << LINFO << "hash(str2): "<< hash(str2);
+            dlog << LINFO << "hash(v): "<< hash(v);
+            dlog << LINFO << "hash(m): "<< hash(m);
+
+            DLIB_TEST(hash(str1) == 1073638390);
+            DLIB_TEST(hash(str2) == 2413364589);
+            DLIB_TEST(hash(v) == 4054789286);
+            DLIB_TEST(hash(m) == 2865512303);
+            DLIB_TEST(murmur_hash3(&str1[0], str1.size(), 0) == 1073638390);
+
+            dlog << LINFO << "hash(str1,1): "<< hash(str1,1);
+            dlog << LINFO << "hash(str2,2): "<< hash(str2,2);
+            dlog << LINFO << "hash(v,3): "<< hash(v,3);
+            dlog << LINFO << "hash(m,3): "<< hash(m,4);
+
+            DLIB_TEST(hash(str1,1) == 2977753747);
+            DLIB_TEST(hash(str2,2) == 3656927287);
+            DLIB_TEST(hash(v,3) == 2127112268);
+            DLIB_TEST(hash(m,4) == 4200495810);
+            DLIB_TEST(murmur_hash3(&str1[0], str1.size(), 1) == 2977753747);
+
+        }
+    } a;
+
+
+
+}
+
+
+
diff --git a/dlib/test/makefile b/dlib/test/makefile
index 93b8cf3e5..95378fa9b 100644
--- a/dlib/test/makefile
+++ b/dlib/test/makefile
@@ -55,6 +55,7 @@ SRC += entropy_coder.cpp
 SRC += entropy_encoder_model.cpp
 SRC += geometry.cpp
 SRC += graph.cpp
+SRC += hash.cpp
 SRC += hash_map.cpp
 SRC += hash_set.cpp
 SRC += hash_table.cpp