Add tests with a misaligned buffer.

tests/adler32.cpp

@@ -4,6 +4,7 @@
 
 #include <climits>
 #include <cstdint>
+#include <cstring>
 
 #include "../library.h"
 #include "../adler32.h"
@@ -16,6 +17,7 @@
 #define EXPECTED_ADLER32_2352BYTES 0xECD1738B
 
 static const uint8_t* buffer;
+static const uint8_t* buffer_misaligned;
 
 class adler32Fixture : public ::testing::Test
 {
@@ -39,10 +41,14 @@ class adler32Fixture : public ::testing::Test
         buffer     = (const uint8_t*)malloc(1048576);
         fread((void*)buffer, 1, 1048576, file);
         fclose(file);
+
+        buffer_misaligned = (const uint8_t*)malloc(1048577);
+        memcpy((void*)(buffer_misaligned + 1), buffer, 1048576);
     }
 
     void TearDown() {
         free((void*)buffer);
+        free((void*)buffer_misaligned);
     }
 
     ~adler32Fixture()
@@ -82,6 +88,35 @@ TEST_F(adler32Fixture, adler32_slicing)
     EXPECT_EQ(adler32, EXPECTED_ADLER32);
 }
 
+TEST_F(adler32Fixture, adler32_auto_misaligned)
+{
+    adler32_ctx* ctx = adler32_init();
+    uint32_t     adler32;
+
+    EXPECT_NE(ctx, nullptr);
+
+    adler32_update(ctx, buffer_misaligned+1, 1048576);
+    adler32_final(ctx, &adler32);
+
+    EXPECT_EQ(adler32, EXPECTED_ADLER32);
+}
+
+TEST_F(adler32Fixture, adler32_slicing_misaligned)
+{
+    uint16_t sum1;
+    uint16_t sum2;
+    uint32_t adler32;
+
+    sum1 = 1;
+    sum2 = 0;
+
+    adler32_slicing(&sum1, &sum2, buffer_misaligned+1, 1048576);
+
+    adler32 = (sum2 << 16) | sum1;
+
+    EXPECT_EQ(adler32, EXPECTED_ADLER32);
+}
+
 TEST_F(adler32Fixture, adler32_auto_15bytes)
 {
     adler32_ctx* ctx = adler32_init();
@@ -217,6 +252,24 @@ TEST_F(adler32Fixture, adler32_neon)
     EXPECT_EQ(adler32, EXPECTED_ADLER32);
 }
 
+TEST_F(adler32Fixture, adler32_neon_misaligned)
+{
+    if(!have_neon()) return;
+
+    uint16_t sum1;
+    uint16_t sum2;
+    uint32_t adler32;
+
+    sum1 = 1;
+    sum2 = 0;
+
+    adler32_neon(&sum1, &sum2, buffer_misaligned+1, 1048576);
+
+    adler32 = (sum2 << 16) | sum1;
+
+    EXPECT_EQ(adler32, EXPECTED_ADLER32);
+}
+
 TEST_F(adler32Fixture, adler32_neon_15bytes)
 {
     if(!have_neon()) return;
@@ -329,6 +382,42 @@ TEST_F(adler32Fixture, adler32_ssse3)
     EXPECT_EQ(adler32, EXPECTED_ADLER32);
 }
 
+TEST_F(adler32Fixture, adler32_avx2_misaligned)
+{
+    if(!have_avx2()) return;
+
+    uint16_t sum1;
+    uint16_t sum2;
+    uint32_t adler32;
+
+    sum1 = 1;
+    sum2 = 0;
+
+    adler32_avx2(&sum1, &sum2, buffer_misaligned+1, 1048576);
+
+    adler32 = (sum2 << 16) | sum1;
+
+    EXPECT_EQ(adler32, EXPECTED_ADLER32);
+}
+
+TEST_F(adler32Fixture, adler32_ssse3_misaligned)
+{
+    if(!have_ssse3()) return;
+
+    uint16_t sum1;
+    uint16_t sum2;
+    uint32_t adler32;
+
+    sum1 = 1;
+    sum2 = 0;
+
+    adler32_ssse3(&sum1, &sum2, buffer_misaligned+1, 1048576);
+
+    adler32 = (sum2 << 16) | sum1;
+
+    EXPECT_EQ(adler32, EXPECTED_ADLER32);
+}
+
 TEST_F(adler32Fixture, adler32_avx2_15bytes)
 {
     if(!have_avx2()) return;

tests/crc16.cpp

@@ -4,6 +4,7 @@
 
 #include <climits>
 #include <cstdint>
+#include <cstring>
 
 #include "../library.h"
 #include "../crc16.h"
@@ -16,6 +17,7 @@
 #define EXPECTED_CRC16_2352BYTES 0x23F4
 
 static const uint8_t* buffer;
+static const uint8_t* buffer_misaligned;
 
 class crc16Fixture : public ::testing::Test
 {
@@ -39,9 +41,15 @@ class crc16Fixture : public ::testing::Test
         buffer     = (const uint8_t*)malloc(1048576);
         fread((void*)buffer, 1, 1048576, file);
         fclose(file);
+
+        buffer_misaligned = (const uint8_t*)malloc(1048577);
+        memcpy((void*)(buffer_misaligned + 1), buffer, 1048576);
     }
 
-    void TearDown() { free((void*)buffer); }
+    void TearDown() {
+        free((void*)buffer);
+        free((void*)buffer_misaligned);
+    }
 
     ~crc16Fixture()
     {
@@ -64,6 +72,19 @@ TEST_F(crc16Fixture, crc16_auto)
     EXPECT_EQ(crc, EXPECTED_CRC16);
 }
 
+TEST_F(crc16Fixture, crc16_auto_misaligned)
+{
+    crc16_ctx* ctx = crc16_init();
+    uint16_t   crc;
+
+    EXPECT_NE(ctx, nullptr);
+
+    crc16_update(ctx, buffer_misaligned+1, 1048576);
+    crc16_final(ctx, &crc);
+
+    EXPECT_EQ(crc, EXPECTED_CRC16);
+}
+
 TEST_F(crc16Fixture, crc16_auto_15bytes)
 {
     crc16_ctx* ctx = crc16_init();

tests/crc16_ccitt.cpp

@@ -4,6 +4,7 @@
 
 #include <climits>
 #include <cstdint>
+#include <cstring>
 
 #include "../library.h"
 #include "../crc16_ccitt.h"
@@ -16,6 +17,7 @@
 #define EXPECTED_CRC16_CCITT_2352BYTES 0x1946
 
 static const uint8_t* buffer;
+static const uint8_t* buffer_misaligned;
 
 class crc16_ccittFixture : public ::testing::Test
 {
@@ -39,9 +41,15 @@ class crc16_ccittFixture : public ::testing::Test
         buffer     = (const uint8_t*)malloc(1048576);
         fread((void*)buffer, 1, 1048576, file);
         fclose(file);
+
+        buffer_misaligned = (const uint8_t*)malloc(1048577);
+        memcpy((void*)(buffer_misaligned + 1), buffer, 1048576);
     }
 
-    void TearDown() { free((void*)buffer); }
+    void TearDown() {
+        free((void*)buffer);
+        free((void*)buffer_misaligned);
+    }
 
     ~crc16_ccittFixture()
     {
@@ -64,6 +72,19 @@ TEST_F(crc16_ccittFixture, crc16_ccitt_auto)
     EXPECT_EQ(crc, EXPECTED_CRC16_CCITT);
 }
 
+TEST_F(crc16_ccittFixture, crc16_ccitt_auto_misaligned)
+{
+    crc16_ccitt_ctx* ctx = crc16_ccitt_init();
+    uint16_t         crc;
+
+    EXPECT_NE(ctx, nullptr);
+
+    crc16_ccitt_update(ctx, buffer_misaligned+1, 1048576);
+    crc16_ccitt_final(ctx, &crc);
+
+    EXPECT_EQ(crc, EXPECTED_CRC16_CCITT);
+}
+
 TEST_F(crc16_ccittFixture, crc16_ccitt_auto_15bytes)
 {
     crc16_ccitt_ctx* ctx = crc16_ccitt_init();

tests/crc32.cpp

@@ -4,6 +4,7 @@
 
 #include <climits>
 #include <cstdint>
+#include <cstring>
 
 #include "../library.h"
 #include "../crc32.h"
@@ -16,6 +17,7 @@
 #define EXPECTED_CRC32_2352BYTES 0x08ba93ea
 
 static const uint8_t* buffer;
+static const uint8_t* buffer_misaligned;
 
 class crc32Fixture : public ::testing::Test
 {
@@ -39,9 +41,15 @@ class crc32Fixture : public ::testing::Test
         buffer     = (const uint8_t*)malloc(1048576);
         fread((void*)buffer, 1, 1048576, file);
         fclose(file);
+
+        buffer_misaligned = (const uint8_t*)malloc(1048577);
+        memcpy((void*)(buffer_misaligned + 1), buffer, 1048576);
     }
 
-    void TearDown() { free((void*)buffer); }
+    void TearDown() {
+        free((void*)buffer);
+        free((void*)buffer_misaligned);
+    }
 
     ~crc32Fixture()
     {
@@ -75,6 +83,30 @@ TEST_F(crc32Fixture, crc32_slicing)
     EXPECT_EQ(crc, EXPECTED_CRC32);
 }
 
+TEST_F(crc32Fixture, crc32_auto_misaligned)
+{
+    crc32_ctx* ctx = crc32_init();
+    uint32_t   crc;
+
+    EXPECT_NE(ctx, nullptr);
+
+    crc32_update(ctx, buffer_misaligned+1, 1048576);
+    crc32_final(ctx, &crc);
+
+    EXPECT_EQ(crc, EXPECTED_CRC32);
+}
+
+TEST_F(crc32Fixture, crc32_slicing_misaligned)
+{
+    uint32_t crc = CRC32_ISO_SEED;
+
+    crc32_slicing(&crc, buffer_misaligned+1, 1048576);
+
+    crc ^= CRC32_ISO_SEED;
+
+    EXPECT_EQ(crc, EXPECTED_CRC32);
+}
+
 TEST_F(crc32Fixture, crc32_auto_15bytes)
 {
     crc32_ctx* ctx = crc32_init();
@@ -186,6 +218,19 @@ TEST_F(crc32Fixture, crc32_clmul)
     EXPECT_EQ(crc, EXPECTED_CRC32);
 }
 
+TEST_F(crc32Fixture, crc32_clmul_misaligned)
+{
+    if(!have_clmul()) return;
+
+    uint32_t crc = CRC32_ISO_SEED;
+
+    crc = ~crc32_clmul(buffer_misaligned+1, 1048576, ~crc);
+
+    crc ^= CRC32_ISO_SEED;
+
+    EXPECT_EQ(crc, EXPECTED_CRC32);
+}
+
 TEST_F(crc32Fixture, crc32_clmul_15bytes)
 {
     if(!have_clmul()) return;
@@ -254,6 +299,19 @@ TEST_F(crc32Fixture, crc32_arm_crc32)
     EXPECT_EQ(crc, EXPECTED_CRC32);
 }
 
+TEST_F(crc32Fixture, crc32_arm_crc32_misaligned)
+{
+    if(!have_arm_crc32()) return;
+
+    uint32_t crc = CRC32_ISO_SEED;
+
+    crc = armv8_crc32_little(crc, buffer_misaligned+1, 1048576);
+
+    crc ^= CRC32_ISO_SEED;
+
+    EXPECT_EQ(crc, EXPECTED_CRC32);
+}
+
 TEST_F(crc32Fixture, crc32_arm_crc32_15bytes)
 {
     if(!have_arm_crc32()) return;
@@ -320,6 +378,19 @@ TEST_F(crc32Fixture, crc32_vmull)
     EXPECT_EQ(crc, EXPECTED_CRC32);
 }
 
+TEST_F(crc32Fixture, crc32_vmull_misaligned)
+{
+    if(!have_neon()) return;
+
+    uint32_t crc = CRC32_ISO_SEED;
+
+    crc = ~crc32_vmull(buffer_misaligned+1, 1048576, ~crc);
+
+    crc ^= CRC32_ISO_SEED;
+
+    EXPECT_EQ(crc, EXPECTED_CRC32);
+}
+
 TEST_F(crc32Fixture, crc32_vmull_15bytes)
 {
     if(!have_neon()) return;

tests/crc64.cpp

@@ -4,6 +4,7 @@
 
 #include <climits>
 #include <cstdint>
+#include <cstring>
 
 #include "../library.h"
 #include "../crc64.h"
@@ -16,6 +17,7 @@
 #define EXPECTED_CRC64_2352BYTES 0x126435DB43477623
 
 static const uint8_t* buffer;
+static const uint8_t* buffer_misaligned;
 
 class crc64Fixture : public ::testing::Test
 {
@@ -39,9 +41,15 @@ class crc64Fixture : public ::testing::Test
         buffer     = (const uint8_t*)malloc(1048576);
         fread((void*)buffer, 1, 1048576, file);
         fclose(file);
+
+        buffer_misaligned = (const uint8_t*)malloc(1048577);
+        memcpy((void*)(buffer_misaligned + 1), buffer, 1048576);
     }
 
-    void TearDown() { free((void*)buffer); }
+    void TearDown() {
+        free((void*)buffer);
+        free((void*)buffer_misaligned);
+    }
 
     ~crc64Fixture()
     {
@@ -75,6 +83,30 @@ TEST_F(crc64Fixture, crc64_slicing)
     EXPECT_EQ(crc, EXPECTED_CRC64);
 }
 
+TEST_F(crc64Fixture, crc64_auto_misaligned)
+{
+    crc64_ctx* ctx = crc64_init();
+    uint64_t   crc;
+
+    EXPECT_NE(ctx, nullptr);
+
+    crc64_update(ctx, buffer_misaligned+1, 1048576);
+    crc64_final(ctx, &crc);
+
+    EXPECT_EQ(crc, EXPECTED_CRC64);
+}
+
+TEST_F(crc64Fixture, crc64_slicing_misaligned)
+{
+    uint64_t crc = CRC64_ECMA_SEED;
+
+    crc64_slicing(&crc, buffer_misaligned+1, 1048576);
+
+    crc ^= CRC64_ECMA_SEED;
+
+    EXPECT_EQ(crc, EXPECTED_CRC64);
+}
+
 TEST_F(crc64Fixture, crc64_auto_15bytes)
 {
     crc64_ctx* ctx = crc64_init();
@@ -186,6 +218,19 @@ TEST_F(crc64Fixture, crc64_clmul)
     EXPECT_EQ(crc, EXPECTED_CRC64);
 }
 
+TEST_F(crc64Fixture, crc64_clmul_misaligned)
+{
+    if(!have_clmul()) return;
+
+    uint64_t crc = CRC64_ECMA_SEED;
+
+    crc = ~crc64_clmul(~crc, buffer_misaligned+1, 1048576);
+
+    crc ^= CRC64_ECMA_SEED;
+
+    EXPECT_EQ(crc, EXPECTED_CRC64);
+}
+
 TEST_F(crc64Fixture, crc64_clmul_15bytes)
 {
     if(!have_clmul()) return;

tests/fletcher16.cpp

@@ -4,6 +4,7 @@
 
 #include <climits>
 #include <cstdint>
+#include <cstring>
 
 #include "../library.h"
 #include "../fletcher16.h"
@@ -16,6 +17,7 @@
 #define EXPECTED_FLETCHER16_2352BYTES 0x0AC5
 
 static const uint8_t* buffer;
+static const uint8_t* buffer_misaligned;
 
 class fletcher16Fixture : public ::testing::Test
 {
@@ -39,9 +41,15 @@ class fletcher16Fixture : public ::testing::Test
         buffer     = (const uint8_t*)malloc(1048576);
         fread((void*)buffer, 1, 1048576, file);
         fclose(file);
+
+        buffer_misaligned = (const uint8_t*)malloc(1048577);
+        memcpy((void*)(buffer_misaligned + 1), buffer, 1048576);
     }
 
-    void TearDown() { free((void*)buffer); }
+    void TearDown() {
+        free((void*)buffer);
+        free((void*)buffer_misaligned);
+    }
 
     ~fletcher16Fixture()
     {
@@ -64,6 +72,19 @@ TEST_F(fletcher16Fixture, fletcher16_auto)
     EXPECT_EQ(fletcher, EXPECTED_FLETCHER16);
 }
 
+TEST_F(fletcher16Fixture, fletcher16_auto_misaligned)
+{
+    fletcher16_ctx* ctx = fletcher16_init();
+    uint16_t        fletcher;
+
+    EXPECT_NE(ctx, nullptr);
+
+    fletcher16_update(ctx, buffer_misaligned+1, 1048576);
+    fletcher16_final(ctx, &fletcher);
+
+    EXPECT_EQ(fletcher, EXPECTED_FLETCHER16);
+}
+
 TEST_F(fletcher16Fixture, fletcher16_auto_15bytes)
 {
     fletcher16_ctx* ctx = fletcher16_init();

tests/fletcher32.cpp

@@ -4,6 +4,7 @@
 
 #include <climits>
 #include <cstdint>
+#include <cstring>
 
 #include "../library.h"
 #include "../fletcher32.h"
@@ -16,6 +17,7 @@
 #define EXPECTED_FLETCHER32_2352BYTES 0xCB3E7352
 
 static const uint8_t* buffer;
+static const uint8_t* buffer_misaligned;
 
 class fletcher32Fixture : public ::testing::Test
 {
@@ -39,9 +41,15 @@ class fletcher32Fixture : public ::testing::Test
         buffer     = (const uint8_t*)malloc(1048576);
         fread((void*)buffer, 1, 1048576, file);
         fclose(file);
+
+        buffer_misaligned = (const uint8_t*)malloc(1048577);
+        memcpy((void*)(buffer_misaligned + 1), buffer, 1048576);
     }
 
-    void TearDown() { free((void*)buffer); }
+    void TearDown() {
+        free((void*)buffer);
+        free((void*)buffer_misaligned);
+    }
 
     ~fletcher32Fixture()
     {
@@ -64,6 +72,19 @@ TEST_F(fletcher32Fixture, fletcher32_auto)
     EXPECT_EQ(fletcher, EXPECTED_FLETCHER32);
 }
 
+TEST_F(fletcher32Fixture, fletcher32_auto_misaligned)
+{
+    fletcher32_ctx* ctx = fletcher32_init();
+    uint32_t        fletcher;
+
+    EXPECT_NE(ctx, nullptr);
+
+    fletcher32_update(ctx, buffer_misaligned+1, 1048576);
+    fletcher32_final(ctx, &fletcher);
+
+    EXPECT_EQ(fletcher, EXPECTED_FLETCHER32);
+}
+
 TEST_F(fletcher32Fixture, fletcher32_auto_15bytes)
 {
     fletcher32_ctx* ctx = fletcher32_init();

tests/spamsum.cpp

@@ -4,6 +4,7 @@
 
 #include <climits>
 #include <cstdint>
+#include <cstring>
 
 #include "../library.h"
 #include "../spamsum.h"
@@ -16,6 +17,7 @@
 #define EXPECTED_SPAMSUM_2352BYTES "48:pasCLoANDXmjCz1p2OpPm+Gek3xmZfJJ5DD4BacmmlodQMQa/58Z:csK1Nxz7XFGeJS/flHMQu2Z"
 
 static const uint8_t* buffer;
+static const uint8_t* buffer_misaligned;
 
 class spamsumFixture : public ::testing::Test
 {
@@ -39,9 +41,15 @@ class spamsumFixture : public ::testing::Test
         buffer     = (const uint8_t*)malloc(1048576);
         fread((void*)buffer, 1, 1048576, file);
         fclose(file);
+
+        buffer_misaligned = (const uint8_t*)malloc(1048577);
+        memcpy((void*)(buffer_misaligned + 1), buffer, 1048576);
     }
 
-    void TearDown() { free((void*)buffer); }
+    void TearDown() {
+        free((void*)buffer);
+        free((void*)buffer_misaligned);
+    }
 
     ~spamsumFixture()
     {
@@ -67,6 +75,22 @@ TEST_F(spamsumFixture, spamsum_auto)
     free((void*)spamsum);
 }
 
+TEST_F(spamsumFixture, spamsum_auto_misaligned)
+{
+    spamsum_ctx* ctx     = spamsum_init();
+    const char*  spamsum = (const char*)malloc(FUZZY_MAX_RESULT);
+
+    EXPECT_NE(ctx, nullptr);
+    EXPECT_NE(spamsum, nullptr);
+
+    spamsum_update(ctx, buffer_misaligned+1, 1048576);
+    spamsum_final(ctx, (uint8_t*)spamsum);
+
+    EXPECT_STREQ(spamsum, EXPECTED_SPAMSUM);
+
+    free((void*)spamsum);
+}
+
 TEST_F(spamsumFixture, spamsum_auto_15bytes)
 {
     spamsum_ctx* ctx     = spamsum_init();