Add the boost::hash unit tests.

[SVN r27903]
2005-04-01 16:58:09 +00:00
parent 2b375867f5
commit 8bfc36b94d
17 changed files with 697 additions and 0 deletions
@@ -0,0 +1,59 @@
+
+//  (C) Copyright Daniel James 2005.
+//  Use, modification and distribution are subject to the
+//  Boost Software License, Version 1.0. (See accompanying file
+//  LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
+
+#include <boost/functional/hash/hash.hpp>
+
+#define BOOST_AUTO_TEST_MAIN
+#include <boost/test/auto_unit_test.hpp>
+
+#include <vector>
+#include <string>
+#include <cctype>
+
+namespace test
+{
+    struct custom
+    {
+        int value_;
+
+        custom(int x) : value_(x) {}
+        std::size_t hash() const { return value_ * 10; }
+    };
+}
+
+#if !defined(BOOST_NO_TEMPLATE_PARTIAL_SPECIALIZATION)
+namespace test
+#else
+namespace boost
+#endif
+{
+    std::size_t hash_value(custom x)
+    {
+        return x.hash();
+    }
+}
+
+BOOST_AUTO_UNIT_TEST(custom_tests)
+{
+    boost::hash<test::custom> custom_hasher;
+    BOOST_CHECK_EQUAL(custom_hasher(10), 100u);
+    test::custom x(55);
+    BOOST_CHECK_EQUAL(custom_hasher(x), 550u);
+
+    std::vector<test::custom> custom_vector;
+    custom_vector.push_back(5);
+    custom_vector.push_back(25);
+    custom_vector.push_back(35);
+
+    std::size_t seed = 0;
+    boost::hash_combine(seed, test::custom(5));
+    boost::hash_combine(seed, test::custom(25));
+    boost::hash_combine(seed, test::custom(35));
+
+    BOOST_CHECK_EQUAL(seed,
+            boost::hash_range(custom_vector.begin(), custom_vector.end()));
+}
+