72 lines
2.5 KiB
C++
72 lines
2.5 KiB
C++
#include <cstring>
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#include <gtest/gtest.h>
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#include <yycc.hpp>
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#include <yycc/string/reinterpret.hpp>
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#include <yycc/prelude.hpp>
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#define REINTERPRET ::yycc::string::reinterpret
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#define AS_UINT8(p) static_cast<u8>(p)
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#define CONST_VOID_PTR(p) reinterpret_cast<const void*>(p)
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#define VOID_PTR(p) reinterpret_cast<void*>(p)
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namespace yycctest::string::reinterpret {
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static std::u8string PROBE(u8"Test");
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TEST(StringReinterpret, Character) {
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const auto& src = PROBE[0];
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const auto dst = REINTERPRET::as_ordinary(src);
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const auto new_src = REINTERPRET::as_utf8(dst);
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// Value should be the same after casting.
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EXPECT_EQ(AS_UINT8(src), AS_UINT8(dst));
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EXPECT_EQ(AS_UINT8(src), AS_UINT8(new_src));
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}
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TEST(StringReinterpret, ConstPointer) {
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const auto* src = PROBE.data();
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const auto* dst = REINTERPRET::as_ordinary(src);
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const auto* new_src = REINTERPRET::as_utf8(dst);
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// Pointer should point to the same address after casting.
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EXPECT_EQ(CONST_VOID_PTR(src), CONST_VOID_PTR(dst));
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EXPECT_EQ(CONST_VOID_PTR(src), CONST_VOID_PTR(new_src));
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}
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TEST(StringReinterpret, Pointer) {
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auto* src = PROBE.data();
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auto* dst = REINTERPRET::as_ordinary(src);
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auto* new_src = REINTERPRET::as_utf8(dst);
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// Pointer should point to the same address after casting.
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EXPECT_EQ(VOID_PTR(src), VOID_PTR(dst));
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EXPECT_EQ(VOID_PTR(src), VOID_PTR(new_src));
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}
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TEST(StringReinterpret, StlString) {
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auto src = std::u8string(PROBE);
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auto dst = REINTERPRET::as_ordinary(src);
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auto new_src = REINTERPRET::as_utf8(dst);
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// Check memory length and data.
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ASSERT_EQ(src.length(), dst.length());
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EXPECT_TRUE(std::memcmp(src.data(), dst.data(), src.length()) == 0);
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ASSERT_EQ(src.length(), new_src.length());
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EXPECT_TRUE(std::memcmp(src.data(), new_src.data(), src.length()) == 0);
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}
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TEST(StringReinterpret, StlStringView) {
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auto src = std::u8string_view(PROBE);
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auto dst = REINTERPRET::as_ordinary_view(src);
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auto new_src = REINTERPRET::as_utf8_view(dst);
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// Check memory length and data.
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ASSERT_EQ(src.length(), dst.length());
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EXPECT_TRUE(std::memcmp(src.data(), dst.data(), src.length()) == 0);
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ASSERT_EQ(src.length(), new_src.length());
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EXPECT_TRUE(std::memcmp(src.data(), new_src.data(), src.length()) == 0);
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}
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} // namespace yycctest::string::reinterpret
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