TESTS: Add unit tests for our generic string hash functions

tests/common/hash.cpp

@@ -0,0 +1,65 @@
+/* xoreos-tools - Tools to help with xoreos development
+ *
+ * xoreos-tools is the legal property of its developers, whose names
+ * can be found in the AUTHORS file distributed with this source
+ * distribution.
+ *
+ * xoreos-tools is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * as published by the Free Software Foundation; either version 3
+ * of the License, or (at your option) any later version.
+ *
+ * xoreos-tools is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with xoreos-tools. If not, see <http://www.gnu.org/licenses/>.
+ */
+
+/** @file
+ *  Unit tests for our generic string hash functions.
+ */
+
+#include "gtest/gtest.h"
+
+#include "src/common/hash.h"
+
+static const char *kString = "Foobar";
+
+GTEST_TEST(Hash, DJB2) {
+	EXPECT_EQ(Common::hashString(kString, Common::kHashDJB2), 0xB33F4C9E);
+}
+
+GTEST_TEST(Hash, FNV32) {
+	EXPECT_EQ(Common::hashString(kString, Common::kHashFNV32), 0xED18E8C2);
+}
+
+GTEST_TEST(Hash, FNV64) {
+	EXPECT_EQ(Common::hashString(kString, Common::kHashFNV64), UINT64_C(0x744E9FFF32CA0A22));
+}
+
+GTEST_TEST(Hash, CRC32) {
+	EXPECT_EQ(Common::hashString(kString, Common::kHashCRC32), 0x995A1AA3);
+}
+
+GTEST_TEST(Hash, DJB2Encoding) {
+	EXPECT_EQ(Common::hashString(kString, Common::kHashDJB2, Common::kEncodingUTF16LE), 0xD11D54FE);
+}
+
+GTEST_TEST(Hash, FNV32Encoding) {
+	EXPECT_EQ(Common::hashString(kString, Common::kHashFNV32, Common::kEncodingUTF16LE), 0xCE5005F0);
+}
+
+GTEST_TEST(Hash, FNV64Encoding) {
+	EXPECT_EQ(Common::hashString(kString, Common::kHashFNV64, Common::kEncodingUTF16LE), UINT64_C(0xA73456F669A95770));
+}
+
+GTEST_TEST(Hash, CRC32Encoding) {
+	EXPECT_EQ(Common::hashString(kString, Common::kHashCRC32, Common::kEncodingUTF16LE), 0x56031CD6);
+}
+
+GTEST_TEST(Hash, formatHash) {
+	EXPECT_STREQ(Common::formatHash(UINT64_C(0x1234567890ABCDEF)).c_str(), "0x1234567890ABCDEF");
+}

tests/common/rules.mk

@@ -159,3 +159,8 @@ check_PROGRAMS                     += tests/common/test_filepath
 tests_common_test_filepath_SOURCES  = tests/common/filepath.cpp
 tests_common_test_filepath_LDADD    = $(common_LIBS)
 tests_common_test_filepath_CXXFLAGS = $(test_CXXFLAGS)
+
+check_PROGRAMS                 += tests/common/test_hash
+tests_common_test_hash_SOURCES  = tests/common/hash.cpp
+tests_common_test_hash_LDADD    = $(common_LIBS)
+tests_common_test_hash_CXXFLAGS = $(test_CXXFLAGS)