Add 'neozip/' from commit 'c2712b8a345191f6ed79558c089777df94590087'

git-subtree-dir: neozip
git-subtree-mainline: b1e34e861b5d732afe828d58aad2c638135061fd
git-subtree-split: c2712b8a345191f6ed79558c089777df94590087

1 files changed, 89 insertions, 0 deletions

diff --git a/neozip/test/test_crc32_copy.cc b/neozip/test/test_crc32_copy.cc
new file mode 100644
index 0000000000..fa3059e544
--- /dev/null
+++ b/neozip/test/test_crc32_copy.cc
@@ -0,0 +1,89 @@
+/* test_crc32_copy.cc -- test for crc32 implementations while copying
+ * Copyright (C) 2025 Hans Kristian Rosbach
+ * For conditions of distribution and use, see copyright notice in zlib.h
+ */
+
+#include <gtest/gtest.h>
+
+extern "C" {
+#  include "zbuild.h"
+#  include "arch_functions.h"
+#  include "test_cpu_features.h"
+#  include "hash_test_strings_p.h"
+}
+
+class crc32_copy_variant : public ::testing::TestWithParam<hash_test> {
+protected:
+    uint8_t dstbuf[HASH_TEST_MAX_LENGTH];
+
+public:
+    /* Ensure that crc32 copy functions returns the correct crc and copies the data */
+    void crc32_copy_test(crc32_copy_func copyfunc, hash_test params) {
+        ASSERT_LE(params.len, HASH_TEST_MAX_LENGTH);
+
+        uint32_t crc = copyfunc(params.initial_crc, dstbuf, params.buf, params.len);
+
+        EXPECT_EQ(crc, params.expect_crc);
+        EXPECT_EQ(0, memcmp(params.buf, dstbuf, params.len));
+    }
+};
+
+INSTANTIATE_TEST_SUITE_P(crc32_copy, crc32_copy_variant, testing::ValuesIn(hash_tests));
+
+#define TEST_CRC32_COPY(name, copyfunc, support_flag) \
+    TEST_P(crc32_copy_variant, name) { \
+        if (!(support_flag)) { \
+            GTEST_SKIP(); \
+            return; \
+        } \
+        crc32_copy_test(copyfunc, GetParam()); \
+    }
+
+// Base test
+TEST_CRC32_COPY(braid, crc32_copy_braid, 1)
+
+#ifdef DISABLE_RUNTIME_CPU_DETECTION
+    // Native test
+    TEST_CRC32_COPY(native, native_crc32_copy, 1)
+#else
+    // Optimized functions
+#  ifndef WITHOUT_CHORBA
+    TEST_CRC32_COPY(chorba, crc32_copy_chorba, 1)
+#  endif
+#  ifndef WITHOUT_CHORBA_SSE
+#    ifdef X86_SSE2
+    TEST_CRC32_COPY(chorba_sse2, crc32_copy_chorba_sse2, test_cpu_features.x86.has_sse2)
+#    endif
+#    ifdef X86_SSE41
+    TEST_CRC32_COPY(chorba_sse41, crc32_copy_chorba_sse41, test_cpu_features.x86.has_sse41)
+#    endif
+#  endif
+#  ifdef ARM_CRC32
+    TEST_CRC32_COPY(armv8, crc32_copy_armv8, test_cpu_features.arm.has_crc32)
+#  endif
+#  ifdef ARM_PMULL_EOR3
+    TEST_CRC32_COPY(armv8_pmull_eor3, crc32_copy_armv8_pmull_eor3, test_cpu_features.arm.has_crc32 && test_cpu_features.arm.has_pmull && test_cpu_features.arm.has_eor3)
+#  endif
+#  ifdef LOONGARCH_CRC
+    TEST_CRC32_COPY(loongarch, crc32_copy_loongarch64, test_cpu_features.loongarch.has_crc)
+#  endif
+#  ifdef RISCV_CRC32_ZBC
+    TEST_CRC32_COPY(riscv, crc32_copy_riscv64_zbc, test_cpu_features.riscv.has_zbc)
+#  endif
+#  ifdef POWER8_VSX_CRC32
+    TEST_CRC32_COPY(power8, crc32_copy_power8, test_cpu_features.power.has_arch_2_07)
+#  endif
+#  ifdef S390_CRC32_VX
+    TEST_CRC32_COPY(vx, crc32_copy_s390_vx, test_cpu_features.s390.has_vx)
+#  endif
+#  ifdef X86_PCLMULQDQ_CRC
+    TEST_CRC32_COPY(pclmulqdq, crc32_copy_pclmulqdq, test_cpu_features.x86.has_pclmulqdq)
+#  endif
+#  ifdef X86_VPCLMULQDQ_AVX2
+    TEST_CRC32_COPY(vpclmulqdq_avx2, crc32_copy_vpclmulqdq_avx2, (test_cpu_features.x86.has_pclmulqdq && test_cpu_features.x86.has_avx2 && test_cpu_features.x86.has_vpclmulqdq))
+#  endif
+#  ifdef X86_VPCLMULQDQ_AVX512
+    TEST_CRC32_COPY(vpclmulqdq_avx512, crc32_copy_vpclmulqdq_avx512, (test_cpu_features.x86.has_pclmulqdq && test_cpu_features.x86.has_avx512_common && test_cpu_features.x86.has_vpclmulqdq))
+#  endif
+
+#endif