1 files changed, 129 insertions, 0 deletions
diff --git a/src/crc32c_unittest.cc b/src/crc32c_unittest.cc
new file mode 100644
index 0000000000..d6c6af680c
--- /dev/null
+++ b/src/crc32c_unittest.cc
@@ -0,0 +1,129 @@
+// Copyright 2017 The CRC32C Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file. See the AUTHORS file for names of contributors.
+
+#include "crc32c/crc32c.h"
+
+#include <cstddef>
+#include <cstdint>
+#include <cstring>
+
+#include "gtest/gtest.h"
+
+#include "./crc32c_extend_unittests.h"
+
+TEST(Crc32CTest, Crc32c) {
+  // From rfc3720 section B.4.
+  uint8_t buf[32];
+
+  std::memset(buf, 0, sizeof(buf));
+  EXPECT_EQ(static_cast<uint32_t>(0x8a9136aa),
+            crc32c::Crc32c(buf, sizeof(buf)));
+
+  std::memset(buf, 0xff, sizeof(buf));
+  EXPECT_EQ(static_cast<uint32_t>(0x62a8ab43),
+            crc32c::Crc32c(buf, sizeof(buf)));
+
+  for (size_t i = 0; i < 32; ++i)
+    buf[i] = static_cast<uint8_t>(i);
+  EXPECT_EQ(static_cast<uint32_t>(0x46dd794e),
+            crc32c::Crc32c(buf, sizeof(buf)));
+
+  for (size_t i = 0; i < 32; ++i)
+    buf[i] = static_cast<uint8_t>(31 - i);
+  EXPECT_EQ(static_cast<uint32_t>(0x113fdb5c),
+            crc32c::Crc32c(buf, sizeof(buf)));
+
+  uint8_t data[48] = {
+      0x01, 0xc0, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+      0x00, 0x00, 0x00, 0x00, 0x14, 0x00, 0x00, 0x00, 0x00, 0x00, 0x04, 0x00,
+      0x00, 0x00, 0x00, 0x14, 0x00, 0x00, 0x00, 0x18, 0x28, 0x00, 0x00, 0x00,
+      0x00, 0x00, 0x00, 0x00, 0x02, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+  };
+  EXPECT_EQ(static_cast<uint32_t>(0xd9963a56),
+            crc32c::Crc32c(data, sizeof(data)));
+}
+
+namespace crc32c {
+
+struct ApiTestTraits {
+  static uint32_t Extend(uint32_t crc, const uint8_t* data, size_t count) {
+    return ::crc32c::Extend(crc, data, count);
+  }
+};
+
+INSTANTIATE_TYPED_TEST_SUITE_P(Api, ExtendTest, ApiTestTraits);
+
+}  // namespace crc32c
+
+TEST(CRC32CTest, Crc32cCharPointer) {
+  char buf[32];
+
+  std::memset(buf, 0, sizeof(buf));
+  EXPECT_EQ(static_cast<uint32_t>(0x8a9136aa),
+            crc32c::Crc32c(buf, sizeof(buf)));
+
+  std::memset(buf, 0xff, sizeof(buf));
+  EXPECT_EQ(static_cast<uint32_t>(0x62a8ab43),
+            crc32c::Crc32c(buf, sizeof(buf)));
+
+  for (size_t i = 0; i < 32; ++i)
+    buf[i] = static_cast<char>(i);
+  EXPECT_EQ(static_cast<uint32_t>(0x46dd794e),
+            crc32c::Crc32c(buf, sizeof(buf)));
+
+  for (size_t i = 0; i < 32; ++i)
+    buf[i] = static_cast<char>(31 - i);
+  EXPECT_EQ(static_cast<uint32_t>(0x113fdb5c),
+            crc32c::Crc32c(buf, sizeof(buf)));
+}
+
+TEST(CRC32CTest, Crc32cStdString) {
+  std::string buf;
+  buf.resize(32);
+
+  for (size_t i = 0; i < 32; ++i)
+    buf[i] = static_cast<char>(0x00);
+  EXPECT_EQ(static_cast<uint32_t>(0x8a9136aa), crc32c::Crc32c(buf));
+
+  for (size_t i = 0; i < 32; ++i)
+    buf[i] = '\xff';
+  EXPECT_EQ(static_cast<uint32_t>(0x62a8ab43), crc32c::Crc32c(buf));
+
+  for (size_t i = 0; i < 32; ++i)
+    buf[i] = static_cast<char>(i);
+  EXPECT_EQ(static_cast<uint32_t>(0x46dd794e), crc32c::Crc32c(buf));
+
+  for (size_t i = 0; i < 32; ++i)
+    buf[i] = static_cast<char>(31 - i);
+  EXPECT_EQ(static_cast<uint32_t>(0x113fdb5c), crc32c::Crc32c(buf));
+}
+
+#if __cplusplus > 201402L
+#if __has_include(<string_view>)
+
+TEST(CRC32CTest, Crc32cStdStringView) {
+  uint8_t buf[32];
+  std::string_view view(reinterpret_cast<const char*>(buf), sizeof(buf));
+
+  std::memset(buf, 0, sizeof(buf));
+  EXPECT_EQ(static_cast<uint32_t>(0x8a9136aa), crc32c::Crc32c(view));
+
+  std::memset(buf, 0xff, sizeof(buf));
+  EXPECT_EQ(static_cast<uint32_t>(0x62a8ab43), crc32c::Crc32c(view));
+
+  for (size_t i = 0; i < 32; ++i)
+    buf[i] = static_cast<uint8_t>(i);
+  EXPECT_EQ(static_cast<uint32_t>(0x46dd794e), crc32c::Crc32c(view));
+
+  for (size_t i = 0; i < 32; ++i)
+    buf[i] = static_cast<uint8_t>(31 - i);
+  EXPECT_EQ(static_cast<uint32_t>(0x113fdb5c), crc32c::Crc32c(view));
+}
+
+#endif  // __has_include(<string_view>)
+#endif  // __cplusplus > 201402L
+
+#define TESTED_EXTEND Extend
+#include "./crc32c_extend_unittests.h"
+#undef TESTED_EXTEND