Adding upstream version 255.4.upstream/255.4

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 1040 insertions, 0 deletions

diff --git a/src/test/test-macro.c b/src/test/test-macro.c
new file mode 100644
index 0000000..b91a1f9
--- /dev/null
+++ b/src/test/test-macro.c
@@ -0,0 +1,1040 @@
+/* SPDX-License-Identifier: LGPL-2.1-or-later */
+
+#include <stddef.h>
+
+#include "log.h"
+#include "macro.h"
+#include "tests.h"
+
+TEST(saturate_add) {
+        assert_se(saturate_add(1, 2, UINT8_MAX) == 3);
+        assert_se(saturate_add(1, UINT8_MAX-2, UINT8_MAX) == UINT8_MAX-1);
+        assert_se(saturate_add(1, UINT8_MAX-1, UINT8_MAX) == UINT8_MAX);
+        assert_se(saturate_add(1, UINT8_MAX, UINT8_MAX) == UINT8_MAX);
+        assert_se(saturate_add(2, UINT8_MAX, UINT8_MAX) == UINT8_MAX);
+        assert_se(saturate_add(60, 60, 50) == 50);
+}
+
+TEST(ALIGN_POWER2) {
+        unsigned long i, p2;
+
+        assert_se(ALIGN_POWER2(0) == 0);
+        assert_se(ALIGN_POWER2(1) == 1);
+        assert_se(ALIGN_POWER2(2) == 2);
+        assert_se(ALIGN_POWER2(3) == 4);
+        assert_se(ALIGN_POWER2(4) == 4);
+        assert_se(ALIGN_POWER2(5) == 8);
+        assert_se(ALIGN_POWER2(6) == 8);
+        assert_se(ALIGN_POWER2(7) == 8);
+        assert_se(ALIGN_POWER2(9) == 16);
+        assert_se(ALIGN_POWER2(10) == 16);
+        assert_se(ALIGN_POWER2(11) == 16);
+        assert_se(ALIGN_POWER2(12) == 16);
+        assert_se(ALIGN_POWER2(13) == 16);
+        assert_se(ALIGN_POWER2(14) == 16);
+        assert_se(ALIGN_POWER2(15) == 16);
+        assert_se(ALIGN_POWER2(16) == 16);
+        assert_se(ALIGN_POWER2(17) == 32);
+
+        assert_se(ALIGN_POWER2(ULONG_MAX) == 0);
+        assert_se(ALIGN_POWER2(ULONG_MAX - 1) == 0);
+        assert_se(ALIGN_POWER2(ULONG_MAX - 1024) == 0);
+        assert_se(ALIGN_POWER2(ULONG_MAX / 2) == ULONG_MAX / 2 + 1);
+        assert_se(ALIGN_POWER2(ULONG_MAX + 1) == 0);
+
+        for (i = 1; i < 131071; ++i) {
+                for (p2 = 1; p2 < i; p2 <<= 1)
+                        /* empty */ ;
+
+                assert_se(ALIGN_POWER2(i) == p2);
+        }
+
+        for (i = ULONG_MAX - 1024; i < ULONG_MAX; ++i) {
+                for (p2 = 1; p2 && p2 < i; p2 <<= 1)
+                        /* empty */ ;
+
+                assert_se(ALIGN_POWER2(i) == p2);
+        }
+}
+
+TEST(MAX) {
+        static const struct {
+                int a;
+                int b[CONST_MAX(10, 100)];
+        } val1 = {
+                .a = CONST_MAX(10, 100),
+        };
+        int d = 0;
+        unsigned long x = 12345;
+        unsigned long y = 54321;
+        const char str[] = "a_string_constant";
+        const unsigned long long arr[] = {9999ULL, 10ULL, 0ULL, 3000ULL, 2000ULL, 1000ULL, 100ULL, 9999999ULL};
+        void *p = (void *)str;
+        void *q = (void *)&str[16];
+
+        assert_cc(sizeof(val1.b) == sizeof(int) * 100);
+
+        /* CONST_MAX returns (void) instead of a value if the passed arguments
+         * are not of the same type or not constant expressions. */
+        assert_cc(__builtin_types_compatible_p(typeof(CONST_MAX(1, 10)), int));
+        assert_cc(__builtin_types_compatible_p(typeof(CONST_MAX(1, 1U)), void));
+
+        assert_se(val1.a == 100);
+        assert_se(MAX(++d, 0) == 1);
+        assert_se(d == 1);
+
+        assert_cc(MAXSIZE(char[3], uint16_t) == 3);
+        assert_cc(MAXSIZE(char[3], uint32_t) == 4);
+        assert_cc(MAXSIZE(char, long) == sizeof(long));
+
+        assert_se(MAX(-5, 5) == 5);
+        assert_se(MAX(5, 5) == 5);
+        assert_se(MAX(MAX(1, MAX(2, MAX(3, 4))), 5) == 5);
+        assert_se(MAX(MAX(1, MAX(2, MAX(3, 2))), 1) == 3);
+        assert_se(MAX(MIN(1, MIN(2, MIN(3, 4))), 5) == 5);
+        assert_se(MAX(MAX(1, MIN(2, MIN(3, 2))), 1) == 2);
+        assert_se(LESS_BY(8, 4) == 4);
+        assert_se(LESS_BY(8, 8) == 0);
+        assert_se(LESS_BY(4, 8) == 0);
+        assert_se(LESS_BY(16, LESS_BY(8, 4)) == 12);
+        assert_se(LESS_BY(4, LESS_BY(8, 4)) == 0);
+        assert_se(CMP(3, 5) == -1);
+        assert_se(CMP(5, 3) == 1);
+        assert_se(CMP(5, 5) == 0);
+        assert_se(CMP(x, y) == -1);
+        assert_se(CMP(y, x) == 1);
+        assert_se(CMP(x, x) == 0);
+        assert_se(CMP(y, y) == 0);
+        assert_se(CMP(UINT64_MAX, (uint64_t) 0) == 1);
+        assert_se(CMP((uint64_t) 0, UINT64_MAX) == -1);
+        assert_se(CMP(UINT64_MAX, UINT64_MAX) == 0);
+        assert_se(CMP(INT64_MIN, INT64_MAX) == -1);
+        assert_se(CMP(INT64_MAX, INT64_MIN) == 1);
+        assert_se(CMP(INT64_MAX, INT64_MAX) == 0);
+        assert_se(CMP(INT64_MIN, INT64_MIN) == 0);
+        assert_se(CMP(INT64_MAX, (int64_t) 0) == 1);
+        assert_se(CMP((int64_t) 0, INT64_MIN) == 1);
+        assert_se(CMP(INT64_MIN, (int64_t) 0) == -1);
+        assert_se(CMP((int64_t) 0, INT64_MAX) == -1);
+        assert_se(CMP(&str[2], &str[7]) == -1);
+        assert_se(CMP(&str[2], &str[2]) == 0);
+        assert_se(CMP(&str[7], (const char *)str) == 1);
+        assert_se(CMP(str[2], str[7]) == 1);
+        assert_se(CMP(str[7], *str) == 1);
+        assert_se(CMP((const unsigned long long *)arr, &arr[3]) == -1);
+        assert_se(CMP(*arr, arr[3]) == 1);
+        assert_se(CMP(p, q) == -1);
+        assert_se(CMP(q, p) == 1);
+        assert_se(CMP(p, p) == 0);
+        assert_se(CMP(q, q) == 0);
+        assert_se(CLAMP(-5, 0, 1) == 0);
+        assert_se(CLAMP(5, 0, 1) == 1);
+        assert_se(CLAMP(5, -10, 1) == 1);
+        assert_se(CLAMP(5, -10, 10) == 5);
+        assert_se(CLAMP(CLAMP(0, -10, 10), CLAMP(-5, 10, 20), CLAMP(100, -5, 20)) == 10);
+}
+
+#pragma GCC diagnostic push
+#ifdef __clang__
+#  pragma GCC diagnostic ignored "-Waddress-of-packed-member"
+#endif
+
+TEST(container_of) {
+        struct mytype {
+                uint8_t pad1[3];
+                uint64_t v1;
+                uint8_t pad2[2];
+                uint32_t v2;
+        } myval = { };
+
+        assert_cc(sizeof(myval) >= 17);
+        assert_se(container_of(&myval.v1, struct mytype, v1) == &myval);
+        assert_se(container_of(&myval.v2, struct mytype, v2) == &myval);
+        assert_se(container_of(&container_of(&myval.v2,
+                                             struct mytype,
+                                             v2)->v1,
+                               struct mytype,
+                               v1) == &myval);
+}
+
+#pragma GCC diagnostic pop
+
+TEST(DIV_ROUND_UP) {
+        int div;
+
+        /* basic tests */
+        assert_se(DIV_ROUND_UP(0, 8) == 0);
+        assert_se(DIV_ROUND_UP(1, 8) == 1);
+        assert_se(DIV_ROUND_UP(8, 8) == 1);
+        assert_se(DIV_ROUND_UP(12, 8) == 2);
+        assert_se(DIV_ROUND_UP(16, 8) == 2);
+
+        /* test multiple evaluation */
+        div = 0;
+        assert_se(DIV_ROUND_UP(div++, 8) == 0 && div == 1);
+        assert_se(DIV_ROUND_UP(++div, 8) == 1 && div == 2);
+        assert_se(DIV_ROUND_UP(8, div++) == 4 && div == 3);
+        assert_se(DIV_ROUND_UP(8, ++div) == 2 && div == 4);
+
+        /* overflow test with exact division */
+        assert_se(sizeof(0U) == 4);
+        assert_se(0xfffffffaU % 10U == 0U);
+        assert_se(0xfffffffaU / 10U == 429496729U);
+        assert_se(DIV_ROUND_UP(0xfffffffaU, 10U) == 429496729U);
+        assert_se((0xfffffffaU + 10U - 1U) / 10U == 0U);
+        assert_se(0xfffffffaU / 10U + !!(0xfffffffaU % 10U) == 429496729U);
+
+        /* overflow test with rounded division */
+        assert_se(0xfffffffdU % 10U == 3U);
+        assert_se(0xfffffffdU / 10U == 429496729U);
+        assert_se(DIV_ROUND_UP(0xfffffffdU, 10U) == 429496730U);
+        assert_se((0xfffffffdU + 10U - 1U) / 10U == 0U);
+        assert_se(0xfffffffdU / 10U + !!(0xfffffffdU % 10U) == 429496730U);
+}
+
+TEST(PTR_TO_INT) {
+        /* Primary reason to have this test is to validate that pointers are large enough to hold entire int range */
+        assert_se(PTR_TO_INT(INT_TO_PTR(0)) == 0);
+        assert_se(PTR_TO_INT(INT_TO_PTR(1)) == 1);
+        assert_se(PTR_TO_INT(INT_TO_PTR(-1)) == -1);
+        assert_se(PTR_TO_INT(INT_TO_PTR(INT_MAX)) == INT_MAX);
+        assert_se(PTR_TO_INT(INT_TO_PTR(INT_MIN)) == INT_MIN);
+}
+
+TEST(IN_SET) {
+        assert_se(IN_SET(1, 1, 2));
+        assert_se(IN_SET(1, 1, 2, 3, 4));
+        assert_se(IN_SET(2, 1, 2, 3, 4));
+        assert_se(IN_SET(3, 1, 2, 3, 4));
+        assert_se(IN_SET(4, 1, 2, 3, 4));
+        assert_se(!IN_SET(0, 1, 2));
+        assert_se(!IN_SET(0, 1, 2, 3, 4));
+
+        struct {
+                unsigned x:3;
+        } t = { 1 };
+
+        assert_se(IN_SET(t.x, 1, 2));
+        assert_se(IN_SET(t.x, 1, 2, 3, 4));
+        assert_se(IN_SET(t.x, 2, 3, 4, 1));
+        assert_se(!IN_SET(t.x, 0, 2));
+        assert_se(!IN_SET(t.x, 2, 3, 4));
+}
+
+TEST(FOREACH_POINTER) {
+        int a, b, c, *i;
+        size_t k = 0;
+
+        FOREACH_POINTER(i, &a, &b, &c) {
+                switch (k) {
+
+                case 0:
+                        assert_se(i == &a);
+                        break;
+
+                case 1:
+                        assert_se(i == &b);
+                        break;
+
+                case 2:
+                        assert_se(i == &c);
+                        break;
+
+                default:
+                        assert_not_reached();
+                        break;
+                }
+
+                k++;
+        }
+
+        assert_se(k == 3);
+
+        FOREACH_POINTER(i, &b) {
+                assert_se(k == 3);
+                assert_se(i == &b);
+                k = 4;
+        }
+
+        assert_se(k == 4);
+
+        FOREACH_POINTER(i, NULL, &c, NULL, &b, NULL, &a, NULL) {
+                switch (k) {
+
+                case 4:
+                        assert_se(i == NULL);
+                        break;
+
+                case 5:
+                        assert_se(i == &c);
+                        break;
+
+                case 6:
+                        assert_se(i == NULL);
+                        break;
+
+                case 7:
+                        assert_se(i == &b);
+                        break;
+
+                case 8:
+                        assert_se(i == NULL);
+                        break;
+
+                case 9:
+                        assert_se(i == &a);
+                        break;
+
+                case 10:
+                        assert_se(i == NULL);
+                        break;
+
+                default:
+                        assert_not_reached();
+                        break;
+                }
+
+                k++;
+        }
+
+        assert_se(k == 11);
+}
+
+TEST(FOREACH_VA_ARGS) {
+        size_t i;
+
+        i = 0;
+        uint8_t u8, u8_1 = 1, u8_2 = 2, u8_3 = 3;
+        VA_ARGS_FOREACH(u8, u8_2, 8, 0xff, u8_1, u8_3, 0, 1) {
+                switch(i++) {
+                case 0: assert_se(u8 == u8_2); break;
+                case 1: assert_se(u8 == 8); break;
+                case 2: assert_se(u8 == 0xff); break;
+                case 3: assert_se(u8 == u8_1); break;
+                case 4: assert_se(u8 == u8_3); break;
+                case 5: assert_se(u8 == 0); break;
+                case 6: assert_se(u8 == 1); break;
+                default: assert_se(false);
+                }
+        }
+        assert_se(i == 7);
+        i = 0;
+        VA_ARGS_FOREACH(u8, 0) {
+                assert_se(u8 == 0);
+                assert_se(i++ == 0);
+        }
+        assert_se(i == 1);
+        i = 0;
+        VA_ARGS_FOREACH(u8, 0xff) {
+                assert_se(u8 == 0xff);
+                assert_se(i++ == 0);
+        }
+        assert_se(i == 1);
+        VA_ARGS_FOREACH(u8)
+                assert_se(false);
+
+        i = 0;
+        uint32_t u32, u32_1 = 0xffff0000, u32_2 = 10, u32_3 = 0xffff;
+        VA_ARGS_FOREACH(u32, 1, 100, u32_2, 1000, u32_3, u32_1, 1, 0) {
+                switch(i++) {
+                case 0: assert_se(u32 == 1); break;
+                case 1: assert_se(u32 == 100); break;
+                case 2: assert_se(u32 == u32_2); break;
+                case 3: assert_se(u32 == 1000); break;
+                case 4: assert_se(u32 == u32_3); break;
+                case 5: assert_se(u32 == u32_1); break;
+                case 6: assert_se(u32 == 1); break;
+                case 7: assert_se(u32 == 0); break;
+                default: assert_se(false);
+                }
+        }
+        assert_se(i == 8);
+        i = 0;
+        VA_ARGS_FOREACH(u32, 0) {
+                assert_se(u32 == 0);
+                assert_se(i++ == 0);
+        }
+        assert_se(i == 1);
+        i = 0;
+        VA_ARGS_FOREACH(u32, 1000) {
+                assert_se(u32 == 1000);
+                assert_se(i++ == 0);
+        }
+        assert_se(i == 1);
+        VA_ARGS_FOREACH(u32)
+                assert_se(false);
+
+        i = 0;
+        uint64_t u64, u64_1 = 0xffffffffffffffff, u64_2 = 50, u64_3 = 0xffff;
+        VA_ARGS_FOREACH(u64, 44, 0, u64_3, 100, u64_2, u64_1, 50000) {
+                switch(i++) {
+                case 0: assert_se(u64 == 44); break;
+                case 1: assert_se(u64 == 0); break;
+                case 2: assert_se(u64 == u64_3); break;
+                case 3: assert_se(u64 == 100); break;
+                case 4: assert_se(u64 == u64_2); break;
+                case 5: assert_se(u64 == u64_1); break;
+                case 6: assert_se(u64 == 50000); break;
+                default: assert_se(false);
+                }
+        }
+        assert_se(i == 7);
+        i = 0;
+        VA_ARGS_FOREACH(u64, 0) {
+                assert_se(u64 == 0);
+                assert_se(i++ == 0);
+        }
+        assert_se(i == 1);
+        i = 0;
+        VA_ARGS_FOREACH(u64, 0xff00ff00000000) {
+                assert_se(u64 == 0xff00ff00000000);
+                assert_se(i++ == 0);
+        }
+        assert_se(i == 1);
+        VA_ARGS_FOREACH(u64)
+                assert_se(false);
+
+        struct test {
+                int a;
+                char b;
+        };
+
+        i = 0;
+        struct test s,
+                s_1 = { .a = 0, .b = 'c', },
+                s_2 = { .a = 100000, .b = 'z', },
+                s_3 = { .a = 0xff, .b = 'q', },
+                s_4 = { .a = 1, .b = 'x', };
+        VA_ARGS_FOREACH(s, s_1, (struct test){ .a = 10, .b = 'd', }, s_2, (struct test){}, s_3, s_4) {
+                switch(i++) {
+                case 0: assert_se(s.a == 0     ); assert_se(s.b == 'c'); break;
+                case 1: assert_se(s.a == 10    ); assert_se(s.b == 'd'); break;
+                case 2: assert_se(s.a == 100000); assert_se(s.b == 'z'); break;
+                case 3: assert_se(s.a == 0     ); assert_se(s.b == 0  ); break;
+                case 4: assert_se(s.a == 0xff  ); assert_se(s.b == 'q'); break;
+                case 5: assert_se(s.a == 1     ); assert_se(s.b == 'x'); break;
+                default: assert_se(false);
+                }
+        }
+        assert_se(i == 6);
+        i = 0;
+        VA_ARGS_FOREACH(s, (struct test){ .a = 1, .b = 'A', }) {
+                assert_se(s.a == 1);
+                assert_se(s.b == 'A');
+                assert_se(i++ == 0);
+        }
+        assert_se(i == 1);
+        VA_ARGS_FOREACH(s)
+                assert_se(false);
+
+        i = 0;
+        struct test *p, *p_1 = &s_1, *p_2 = &s_2, *p_3 = &s_3, *p_4 = &s_4;
+        VA_ARGS_FOREACH(p, p_1, NULL, p_2, p_3, NULL, p_4, NULL) {
+                switch(i++) {
+                case 0: assert_se(p == p_1); break;
+                case 1: assert_se(p == NULL); break;
+                case 2: assert_se(p == p_2); break;
+                case 3: assert_se(p == p_3); break;
+                case 4: assert_se(p == NULL); break;
+                case 5: assert_se(p == p_4); break;
+                case 6: assert_se(p == NULL); break;
+                default: assert_se(false);
+                }
+        }
+        assert_se(i == 7);
+        i = 0;
+        VA_ARGS_FOREACH(p, p_3) {
+                assert_se(p == p_3);
+                assert_se(i++ == 0);
+        }
+        assert_se(i == 1);
+        VA_ARGS_FOREACH(p)
+                assert_se(false);
+
+        i = 0;
+        void *v, *v_1 = p_1, *v_2 = p_2, *v_3 = p_3;
+        uint32_t *u32p = &u32;
+        VA_ARGS_FOREACH(v, v_1, NULL, u32p, v_3, p_2, p_4, v_2, NULL) {
+                switch(i++) {
+                case 0: assert_se(v == v_1); break;
+                case 1: assert_se(v == NULL); break;
+                case 2: assert_se(v == u32p); break;
+                case 3: assert_se(v == v_3); break;
+                case 4: assert_se(v == p_2); break;
+                case 5: assert_se(v == p_4); break;
+                case 6: assert_se(v == v_2); break;
+                case 7: assert_se(v == NULL); break;
+                default: assert_se(false);
+                }
+        }
+        assert_se(i == 8);
+        i = 0;
+        VA_ARGS_FOREACH(v, NULL) {
+                assert_se(v == NULL);
+                assert_se(i++ == 0);
+        }
+        assert_se(i == 1);
+        i = 0;
+        VA_ARGS_FOREACH(v, v_1) {
+                assert_se(v == v_1);
+                assert_se(i++ == 0);
+        }
+        assert_se(i == 1);
+        VA_ARGS_FOREACH(v)
+                assert_se(false);
+}
+
+TEST(ALIGN_TO) {
+        assert_se(ALIGN_TO(0, 1) == 0);
+        assert_se(ALIGN_TO(1, 1) == 1);
+        assert_se(ALIGN_TO(2, 1) == 2);
+        assert_se(ALIGN_TO(3, 1) == 3);
+        assert_se(ALIGN_TO(4, 1) == 4);
+        assert_se(ALIGN_TO(SIZE_MAX-1, 1) == SIZE_MAX-1);
+        assert_se(ALIGN_TO(SIZE_MAX, 1) == SIZE_MAX);
+
+        assert_se(ALIGN_TO(0, 2) == 0);
+        assert_se(ALIGN_TO(1, 2) == 2);
+        assert_se(ALIGN_TO(2, 2) == 2);
+        assert_se(ALIGN_TO(3, 2) == 4);
+        assert_se(ALIGN_TO(4, 2) == 4);
+        assert_se(ALIGN_TO(SIZE_MAX-3, 2) == SIZE_MAX-3);
+        assert_se(ALIGN_TO(SIZE_MAX-2, 2) == SIZE_MAX-1);
+        assert_se(ALIGN_TO(SIZE_MAX-1, 2) == SIZE_MAX-1);
+        assert_se(ALIGN_TO(SIZE_MAX, 2) == SIZE_MAX); /* overflow */
+
+        assert_se(ALIGN_TO(0, 4) == 0);
+        assert_se(ALIGN_TO(1, 4) == 4);
+        assert_se(ALIGN_TO(2, 4) == 4);
+        assert_se(ALIGN_TO(3, 4) == 4);
+        assert_se(ALIGN_TO(4, 4) == 4);
+        assert_se(ALIGN_TO(SIZE_MAX-3, 4) == SIZE_MAX-3);
+        assert_se(ALIGN_TO(SIZE_MAX-2, 4) == SIZE_MAX); /* overflow */
+        assert_se(ALIGN_TO(SIZE_MAX-1, 4) == SIZE_MAX); /* overflow */
+        assert_se(ALIGN_TO(SIZE_MAX, 4) == SIZE_MAX);   /* overflow */
+
+        assert_se(ALIGN_TO_U64(0, 1) == 0);
+        assert_se(ALIGN_TO_U64(1, 1) == 1);
+        assert_se(ALIGN_TO_U64(2, 1) == 2);
+        assert_se(ALIGN_TO_U64(3, 1) == 3);
+        assert_se(ALIGN_TO_U64(4, 1) == 4);
+        assert_se(ALIGN_TO_U64(UINT64_MAX-1, 1) == UINT64_MAX-1);
+        assert_se(ALIGN_TO_U64(UINT64_MAX, 1) == UINT64_MAX);
+
+        assert_se(ALIGN_TO_U64(0, 2) == 0);
+        assert_se(ALIGN_TO_U64(1, 2) == 2);
+        assert_se(ALIGN_TO_U64(2, 2) == 2);
+        assert_se(ALIGN_TO_U64(3, 2) == 4);
+        assert_se(ALIGN_TO_U64(4, 2) == 4);
+        assert_se(ALIGN_TO_U64(UINT64_MAX-3, 2) == UINT64_MAX-3);
+        assert_se(ALIGN_TO_U64(UINT64_MAX-2, 2) == UINT64_MAX-1);
+        assert_se(ALIGN_TO_U64(UINT64_MAX-1, 2) == UINT64_MAX-1);
+        assert_se(ALIGN_TO_U64(UINT64_MAX, 2) == UINT64_MAX); /* overflow */
+
+        assert_se(ALIGN_TO_U64(0, 4) == 0);
+        assert_se(ALIGN_TO_U64(1, 4) == 4);
+        assert_se(ALIGN_TO_U64(2, 4) == 4);
+        assert_se(ALIGN_TO_U64(3, 4) == 4);
+        assert_se(ALIGN_TO_U64(4, 4) == 4);
+        assert_se(ALIGN_TO_U64(UINT64_MAX-3, 4) == UINT64_MAX-3);
+        assert_se(ALIGN_TO_U64(UINT64_MAX-2, 4) == UINT64_MAX); /* overflow */
+        assert_se(ALIGN_TO_U64(UINT64_MAX-1, 4) == UINT64_MAX); /* overflow */
+        assert_se(ALIGN_TO_U64(UINT64_MAX, 4) == UINT64_MAX);   /* overflow */
+
+        assert_cc(CONST_ALIGN_TO(96, 512) == 512);
+        assert_cc(CONST_ALIGN_TO(511, 512) == 512);
+        assert_cc(CONST_ALIGN_TO(512, 512) == 512);
+        assert_cc(CONST_ALIGN_TO(513, 512) == 1024);
+        assert_cc(CONST_ALIGN_TO(sizeof(int), 64) == 64);
+
+        assert_cc(__builtin_types_compatible_p(typeof(CONST_ALIGN_TO(4, 3)), void));
+        assert_cc(__builtin_types_compatible_p(typeof(CONST_ALIGN_TO(SIZE_MAX, 512)), void));
+}
+
+TEST(align_down) {
+        assert_se(ALIGN_DOWN(0, 1) == 0);
+        assert_se(ALIGN_DOWN(1, 1) == 1);
+        assert_se(ALIGN_DOWN(2, 1) == 2);
+        assert_se(ALIGN_DOWN(3, 1) == 3);
+        assert_se(ALIGN_DOWN(4, 1) == 4);
+        assert_se(ALIGN_DOWN(SIZE_MAX-1, 1) == SIZE_MAX-1);
+        assert_se(ALIGN_DOWN(SIZE_MAX, 1) == SIZE_MAX);
+
+        assert_se(ALIGN_DOWN(0, 2) == 0);
+        assert_se(ALIGN_DOWN(1, 2) == 0);
+        assert_se(ALIGN_DOWN(2, 2) == 2);
+        assert_se(ALIGN_DOWN(3, 2) == 2);
+        assert_se(ALIGN_DOWN(4, 2) == 4);
+        assert_se(ALIGN_DOWN(SIZE_MAX-1, 2) == SIZE_MAX-1);
+        assert_se(ALIGN_DOWN(SIZE_MAX, 2) == SIZE_MAX-1);
+
+        assert_se(ALIGN_DOWN(0, 4) == 0);
+        assert_se(ALIGN_DOWN(1, 4) == 0);
+        assert_se(ALIGN_DOWN(2, 4) == 0);
+        assert_se(ALIGN_DOWN(3, 4) == 0);
+        assert_se(ALIGN_DOWN(4, 4) == 4);
+        assert_se(ALIGN_DOWN(SIZE_MAX-1, 4) == SIZE_MAX-3);
+        assert_se(ALIGN_DOWN(SIZE_MAX, 4) == SIZE_MAX-3);
+
+        assert_se(ALIGN_DOWN_U64(0, 1) == 0);
+        assert_se(ALIGN_DOWN_U64(1, 1) == 1);
+        assert_se(ALIGN_DOWN_U64(2, 1) == 2);
+        assert_se(ALIGN_DOWN_U64(3, 1) == 3);
+        assert_se(ALIGN_DOWN_U64(4, 1) == 4);
+        assert_se(ALIGN_DOWN_U64(UINT64_MAX-1, 1) == UINT64_MAX-1);
+        assert_se(ALIGN_DOWN_U64(UINT64_MAX, 1) == UINT64_MAX);
+
+        assert_se(ALIGN_DOWN_U64(0, 2) == 0);
+        assert_se(ALIGN_DOWN_U64(1, 2) == 0);
+        assert_se(ALIGN_DOWN_U64(2, 2) == 2);
+        assert_se(ALIGN_DOWN_U64(3, 2) == 2);
+        assert_se(ALIGN_DOWN_U64(4, 2) == 4);
+        assert_se(ALIGN_DOWN_U64(UINT64_MAX-1, 2) == UINT64_MAX-1);
+        assert_se(ALIGN_DOWN_U64(UINT64_MAX, 2) == UINT64_MAX-1);
+
+        assert_se(ALIGN_DOWN_U64(0, 4) == 0);
+        assert_se(ALIGN_DOWN_U64(1, 4) == 0);
+        assert_se(ALIGN_DOWN_U64(2, 4) == 0);
+        assert_se(ALIGN_DOWN_U64(3, 4) == 0);
+        assert_se(ALIGN_DOWN_U64(4, 4) == 4);
+        assert_se(ALIGN_DOWN_U64(UINT64_MAX-1, 4) == UINT64_MAX-3);
+        assert_se(ALIGN_DOWN_U64(UINT64_MAX, 4) == UINT64_MAX-3);
+}
+
+TEST(align_offset) {
+        assert_se(ALIGN_OFFSET(0, 1) == 0);
+        assert_se(ALIGN_OFFSET(1, 1) == 0);
+        assert_se(ALIGN_OFFSET(2, 1) == 0);
+        assert_se(ALIGN_OFFSET(3, 1) == 0);
+        assert_se(ALIGN_OFFSET(4, 1) == 0);
+        assert_se(ALIGN_OFFSET(SIZE_MAX-1, 1) == 0);
+        assert_se(ALIGN_OFFSET(SIZE_MAX, 1) == 0);
+
+        assert_se(ALIGN_OFFSET(0, 2) == 0);
+        assert_se(ALIGN_OFFSET(1, 2) == 1);
+        assert_se(ALIGN_OFFSET(2, 2) == 0);
+        assert_se(ALIGN_OFFSET(3, 2) == 1);
+        assert_se(ALIGN_OFFSET(4, 2) == 0);
+        assert_se(ALIGN_OFFSET(SIZE_MAX-1, 2) == 0);
+        assert_se(ALIGN_OFFSET(SIZE_MAX, 2) == 1);
+
+        assert_se(ALIGN_OFFSET(0, 4) == 0);
+        assert_se(ALIGN_OFFSET(1, 4) == 1);
+        assert_se(ALIGN_OFFSET(2, 4) == 2);
+        assert_se(ALIGN_OFFSET(3, 4) == 3);
+        assert_se(ALIGN_OFFSET(4, 4) == 0);
+        assert_se(ALIGN_OFFSET(SIZE_MAX-1, 4) == 2);
+        assert_se(ALIGN_OFFSET(SIZE_MAX, 4) == 3);
+
+        assert_se(ALIGN_OFFSET_U64(0, 1) == 0);
+        assert_se(ALIGN_OFFSET_U64(1, 1) == 0);
+        assert_se(ALIGN_OFFSET_U64(2, 1) == 0);
+        assert_se(ALIGN_OFFSET_U64(3, 1) == 0);
+        assert_se(ALIGN_OFFSET_U64(4, 1) == 0);
+        assert_se(ALIGN_OFFSET_U64(UINT64_MAX-1, 1) == 0);
+        assert_se(ALIGN_OFFSET_U64(UINT64_MAX, 1) == 0);
+
+        assert_se(ALIGN_OFFSET_U64(0, 2) == 0);
+        assert_se(ALIGN_OFFSET_U64(1, 2) == 1);
+        assert_se(ALIGN_OFFSET_U64(2, 2) == 0);
+        assert_se(ALIGN_OFFSET_U64(3, 2) == 1);
+        assert_se(ALIGN_OFFSET_U64(4, 2) == 0);
+        assert_se(ALIGN_OFFSET_U64(UINT64_MAX-1, 2) == 0);
+        assert_se(ALIGN_OFFSET_U64(UINT64_MAX, 2) == 1);
+
+        assert_se(ALIGN_OFFSET_U64(0, 4) == 0);
+        assert_se(ALIGN_OFFSET_U64(1, 4) == 1);
+        assert_se(ALIGN_OFFSET_U64(2, 4) == 2);
+        assert_se(ALIGN_OFFSET_U64(3, 4) == 3);
+        assert_se(ALIGN_OFFSET_U64(4, 4) == 0);
+        assert_se(ALIGN_OFFSET_U64(UINT64_MAX-1, 4) == 2);
+        assert_se(ALIGN_OFFSET_U64(UINT64_MAX, 4) == 3);
+}
+
+TEST(flags) {
+        enum {
+                F1 = 1 << 0,
+                F2 = 1 << 1,
+                F3 = 1 << 2,
+                F_ALL = F1 | F2 | F3
+        };
+        unsigned n, f;
+
+        assert_se(FLAGS_SET(0, 0));
+        assert_se(FLAGS_SET(F1, F1));
+        assert_se(FLAGS_SET(F1 | F2, F1));
+        assert_se(FLAGS_SET(F1 | F3, F1 | F3));
+        assert_se(FLAGS_SET(F1 | F2 | F3, F_ALL));
+        assert_se(!FLAGS_SET(0, F1));
+        assert_se(!FLAGS_SET(F2, F1));
+        assert_se(!FLAGS_SET(F1 | F2, F3));
+        assert_se(!FLAGS_SET(F1 | F2, F1 | F3));
+        assert_se(!FLAGS_SET(F1 | F2 | F3, ~F_ALL));
+
+        /* Check for no double eval. */
+        n = F2;
+        f = F1;
+        assert_se(!FLAGS_SET(--n, ++f));
+        assert_se(n == F1);
+        assert_se(f == F2);
+
+        SET_FLAG(n, F3, true);
+        assert_se(n == (F1 | F3));
+        SET_FLAG(n, F2, false);
+        assert_se(n == (F1 | F3));
+        SET_FLAG(n, F3, false);
+        assert_se(n == F1);
+        SET_FLAG(n, F1, true);
+        assert_se(n == F1);
+        SET_FLAG(n, F1 | F3, true);
+        assert_se(n == (F1 | F3));
+        SET_FLAG(n, F_ALL, false);
+        assert_se(n == 0);
+
+        assert_se(UPDATE_FLAG(0, 0, true) == 0);
+        assert_se(UPDATE_FLAG(0, F1, true) == F1);
+        assert_se(UPDATE_FLAG(0, F1 | F2, true) == (F1 | F2));
+        assert_se(UPDATE_FLAG(F1, 0, true) == F1);
+        assert_se(UPDATE_FLAG(F1, F1, true) == F1);
+        assert_se(UPDATE_FLAG(F1, F3, true) == (F1 | F3));
+        assert_se(UPDATE_FLAG(F1, F1 | F3, true) == (F1 | F3));
+        assert_se(UPDATE_FLAG(F1, F_ALL, true) == F_ALL);
+        assert_se(UPDATE_FLAG(0, 0, false) == 0);
+        assert_se(UPDATE_FLAG(0, F1, false) == 0);
+        assert_se(UPDATE_FLAG(0, F1 | F2, false) == 0);
+        assert_se(UPDATE_FLAG(F1, 0, false) == F1);
+        assert_se(UPDATE_FLAG(F1, F1, false) == 0);
+        assert_se(UPDATE_FLAG(F1, F3, false) == F1);
+        assert_se(UPDATE_FLAG(F1, F1 | F3, false) == 0);
+        assert_se(UPDATE_FLAG(F1, F2 | F3, false) == F1);
+        assert_se(UPDATE_FLAG(F1, F_ALL, false) == 0);
+        assert_se(UPDATE_FLAG(F_ALL, F_ALL, false) == 0);
+
+        /* Check for no double eval. */
+        n = F2;
+        f = F1;
+        assert_se(UPDATE_FLAG(--n, ++f, true) == (F1 | F2));
+        assert_se(n == F1);
+        assert_se(f == F2);
+}
+
+TEST(DECIMAL_STR_WIDTH) {
+        assert_se(DECIMAL_STR_WIDTH(0) == 1);
+        assert_se(DECIMAL_STR_WIDTH(1) == 1);
+        assert_se(DECIMAL_STR_WIDTH(2) == 1);
+        assert_se(DECIMAL_STR_WIDTH(9) == 1);
+        assert_se(DECIMAL_STR_WIDTH(10) == 2);
+        assert_se(DECIMAL_STR_WIDTH(11) == 2);
+        assert_se(DECIMAL_STR_WIDTH(99) == 2);
+        assert_se(DECIMAL_STR_WIDTH(100) == 3);
+        assert_se(DECIMAL_STR_WIDTH(101) == 3);
+        assert_se(DECIMAL_STR_WIDTH(-1) == 2);
+        assert_se(DECIMAL_STR_WIDTH(-2) == 2);
+        assert_se(DECIMAL_STR_WIDTH(-9) == 2);
+        assert_se(DECIMAL_STR_WIDTH(-10) == 3);
+        assert_se(DECIMAL_STR_WIDTH(-11) == 3);
+        assert_se(DECIMAL_STR_WIDTH(-99) == 3);
+        assert_se(DECIMAL_STR_WIDTH(-100) == 4);
+        assert_se(DECIMAL_STR_WIDTH(-101) == 4);
+        assert_se(DECIMAL_STR_WIDTH(UINT64_MAX) == STRLEN("18446744073709551615"));
+        assert_se(DECIMAL_STR_WIDTH(INT64_MAX) == STRLEN("9223372036854775807"));
+        assert_se(DECIMAL_STR_WIDTH(INT64_MIN) == STRLEN("-9223372036854775808"));
+}
+
+TEST(DECIMAL_STR_MAX) {
+        int8_t s8_longest = INT8_MIN;
+        int16_t s16_longest = INT16_MIN;
+        int32_t s32_longest = INT32_MIN;
+        int64_t s64_longest = INT64_MIN;
+        uint8_t u8_longest = UINT8_MAX;
+        uint16_t u16_longest = UINT16_MAX;
+        uint32_t u32_longest = UINT32_MAX;
+        uint64_t u64_longest = UINT64_MAX;
+
+        /* NB: Always add +1, because DECIMAL_STR_MAX() includes space for trailing NUL byte, but
+         * DECIMAL_STR_WIDTH() does not! */
+        assert_se(DECIMAL_STR_MAX(int8_t) == DECIMAL_STR_WIDTH(s8_longest)+1);
+        assert_se(DECIMAL_STR_MAX(int16_t) == DECIMAL_STR_WIDTH(s16_longest)+1);
+        assert_se(DECIMAL_STR_MAX(int32_t) == DECIMAL_STR_WIDTH(s32_longest)+1);
+        assert_se(DECIMAL_STR_MAX(int64_t) == DECIMAL_STR_WIDTH(s64_longest)+1);
+
+        assert_se(DECIMAL_STR_MAX(uint8_t) == DECIMAL_STR_WIDTH(u8_longest)+1);
+        assert_se(DECIMAL_STR_MAX(uint16_t) == DECIMAL_STR_WIDTH(u16_longest)+1);
+        assert_se(DECIMAL_STR_MAX(uint32_t) == DECIMAL_STR_WIDTH(u32_longest)+1);
+        assert_se(DECIMAL_STR_MAX(uint64_t) == DECIMAL_STR_WIDTH(u64_longest)+1);
+}
+
+TEST(PTR_SUB1) {
+        static const uint64_t x[4] = { 2, 3, 4, 5 };
+        const uint64_t *p;
+
+        p = x + ELEMENTSOF(x)-1;
+        assert_se(*p == 5);
+
+        p = PTR_SUB1(p, x);
+        assert_se(*p == 4);
+
+        p = PTR_SUB1(p, x);
+        assert_se(*p == 3);
+
+        p = PTR_SUB1(p, x);
+        assert_se(*p == 2);
+
+        p = PTR_SUB1(p, x);
+        assert_se(!p);
+
+        p = PTR_SUB1(p, x);
+        assert_se(!p);
+}
+
+TEST(ISPOWEROF2) {
+        uint64_t u;
+        int64_t i;
+
+        /* First, test constant expressions */
+        assert_se(!ISPOWEROF2(-2));
+        assert_se(!ISPOWEROF2(-1));
+        assert_se(!ISPOWEROF2(0));
+        assert_se(ISPOWEROF2(1));
+        assert_se(ISPOWEROF2(2));
+        assert_se(!ISPOWEROF2(3));
+        assert_se(ISPOWEROF2(4));
+        assert_se(!ISPOWEROF2(5));
+        assert_se(!ISPOWEROF2(6));
+        assert_se(!ISPOWEROF2(7));
+        assert_se(ISPOWEROF2(8));
+        assert_se(!ISPOWEROF2(9));
+        assert_se(!ISPOWEROF2(1022));
+        assert_se(ISPOWEROF2(1024));
+        assert_se(!ISPOWEROF2(1025));
+        assert_se(!ISPOWEROF2(UINT64_C(0xffffffff)));
+        assert_se(ISPOWEROF2(UINT64_C(0x100000000)));
+        assert_se(!ISPOWEROF2(UINT64_C(0x100000001)));
+
+        /* Then, test dynamic expressions, and if they are side-effect free */
+        i = -2;
+        assert_se(!ISPOWEROF2(i++));
+        assert_se(i == -1);
+        assert_se(!ISPOWEROF2(i++));
+        assert_se(i == 0);
+        assert_se(!ISPOWEROF2(i++));
+        assert_se(i == 1);
+        assert_se(ISPOWEROF2(i++));
+        assert_se(i == 2);
+        assert_se(ISPOWEROF2(i++));
+        assert_se(i == 3);
+        assert_se(!ISPOWEROF2(i++));
+        assert_se(i == 4);
+        assert_se(ISPOWEROF2(i++));
+        assert_se(i == 5);
+        assert_se(!ISPOWEROF2(i));
+
+        u = 0;
+        assert_se(!ISPOWEROF2(u++));
+        assert_se(u == 1);
+        assert_se(ISPOWEROF2(u++));
+        assert_se(u == 2);
+        assert_se(ISPOWEROF2(u++));
+        assert_se(u == 3);
+        assert_se(!ISPOWEROF2(u++));
+        assert_se(u == 4);
+        assert_se(ISPOWEROF2(u++));
+        assert_se(u == 5);
+        assert_se(!ISPOWEROF2(u));
+}
+
+TEST(ALIGNED) {
+        assert_se(IS_ALIGNED16(NULL));
+        assert_se(IS_ALIGNED32(NULL));
+        assert_se(IS_ALIGNED64(NULL));
+
+        uint64_t u64;
+        uint32_t u32;
+        uint16_t u16;
+
+        assert_se(IS_ALIGNED16(&u16));
+        assert_se(IS_ALIGNED16(&u32));
+        assert_se(IS_ALIGNED16(&u64));
+        assert_se(IS_ALIGNED32(&u32));
+        assert_se(IS_ALIGNED32(&u64));
+        assert_se(IS_ALIGNED64(&u64));
+
+        _align_(32) uint8_t ua256;
+        _align_(8) uint8_t ua64;
+        _align_(4) uint8_t ua32;
+        _align_(2) uint8_t ua16;
+
+        assert_se(IS_ALIGNED16(&ua256));
+        assert_se(IS_ALIGNED32(&ua256));
+        assert_se(IS_ALIGNED64(&ua256));
+
+        assert_se(IS_ALIGNED16(&ua64));
+        assert_se(IS_ALIGNED32(&ua64));
+        assert_se(IS_ALIGNED64(&ua64));
+
+        assert_se(IS_ALIGNED16(&ua32));
+        assert_se(IS_ALIGNED32(&ua32));
+
+        assert_se(IS_ALIGNED16(&ua16));
+
+#ifdef __x86_64__
+        /* Conditionalized on x86-64, since there we know for sure that all three types are aligned to
+         * their size. Too lazy to figure it out for other archs */
+        void *p = UINT_TO_PTR(1); /* definitely not aligned */
+        assert_se(!IS_ALIGNED16(p));
+        assert_se(!IS_ALIGNED32(p));
+        assert_se(!IS_ALIGNED64(p));
+
+        assert_se(IS_ALIGNED16(ALIGN2_PTR(p)));
+        assert_se(IS_ALIGNED32(ALIGN4_PTR(p)));
+        assert_se(IS_ALIGNED64(ALIGN8_PTR(p)));
+
+        p = UINT_TO_PTR(-1); /* also definitely not aligned */
+        assert_se(!IS_ALIGNED16(p));
+        assert_se(!IS_ALIGNED32(p));
+        assert_se(!IS_ALIGNED64(p));
+#endif
+}
+
+TEST(FOREACH_ARRAY) {
+        int a[10] = { 0, 1, 2, 3, 4, 5, 6, 7, 8, 9 };
+        int b[10] = { 9, 8, 7, 6, 5, 4, 3, 2, 1, 0 };
+        int x, n;
+
+        x = n = 0;
+        FOREACH_ARRAY(i, a, 10) {
+                x += *i;
+                n++;
+        }
+        assert_se(x == 45);
+        assert_se(n == 10);
+
+        x = n = 0;
+        FOREACH_ARRAY(i, a, 10)
+                FOREACH_ARRAY(j, b, 10) {
+                        x += (*i) * (*j);
+                        n++;
+                }
+        assert_se(x == 45 * 45);
+        assert_se(n == 10 * 10);
+
+        x = n = 0;
+        FOREACH_ARRAY(i, a, 5)
+                FOREACH_ARRAY(j, b, 5) {
+                        x += (*i) * (*j);
+                        n++;
+                }
+        assert_se(x == 10 * 35);
+        assert_se(n == 5 * 5);
+
+        x = n = 0;
+        FOREACH_ARRAY(i, a, 0)
+                FOREACH_ARRAY(j, b, 0) {
+                        x += (*i) * (*j);
+                        n++;
+                }
+        assert_se(x == 0);
+        assert_se(n == 0);
+
+        x = n = 0;
+        FOREACH_ARRAY(i, a, -1)
+                FOREACH_ARRAY(j, b, -1) {
+                        x += (*i) * (*j);
+                        n++;
+                }
+        assert_se(x == 0);
+        assert_se(n == 0);
+}
+
+#define TEST_ROUND_UP_BY_TYPE(type, max_value)                          \
+        ({                                                              \
+                type x, y;                                              \
+                x = 0, y = 1;                                           \
+                assert_se(ROUND_UP(x, y) == 0);                         \
+                x = 0, y = 2;                                           \
+                assert_se(ROUND_UP(x, y) == 0);                         \
+                x = 0, y = 3;                                           \
+                assert_se(ROUND_UP(x, y) == 0);                         \
+                x = 0, y = 4;                                           \
+                assert_se(ROUND_UP(x, y) == 0);                         \
+                x = 1, y = 1;                                           \
+                assert_se(ROUND_UP(x, y) == 1);                         \
+                x = 1, y = 2;                                           \
+                assert_se(ROUND_UP(x, y) == 2);                         \
+                x = 1, y = 3;                                           \
+                assert_se(ROUND_UP(x, y) == 3);                         \
+                x = 1, y = 4;                                           \
+                assert_se(ROUND_UP(x, y) == 4);                         \
+                x = 2, y = 1;                                           \
+                assert_se(ROUND_UP(x, y) == 2);                         \
+                x = 2, y = 2;                                           \
+                assert_se(ROUND_UP(x, y) == 2);                         \
+                x = 2, y = 3;                                           \
+                assert_se(ROUND_UP(x, y) == 3);                         \
+                x = 2, y = 4;                                           \
+                assert_se(ROUND_UP(x, y) == 4);                         \
+                x = 3, y = 1;                                           \
+                assert_se(ROUND_UP(x, y) == 3);                         \
+                x = 3, y = 2;                                           \
+                assert_se(ROUND_UP(x, y) == 4);                         \
+                x = 3, y = 3;                                           \
+                assert_se(ROUND_UP(x, y) == 3);                         \
+                x = 3, y = 4;                                           \
+                assert_se(ROUND_UP(x, y) == 4);                         \
+                x = 4, y = 1;                                           \
+                assert_se(ROUND_UP(x, y) == 4);                         \
+                x = 4, y = 2;                                           \
+                assert_se(ROUND_UP(x, y) == 4);                         \
+                x = 4, y = 3;                                           \
+                assert_se(ROUND_UP(x, y) == 6);                         \
+                x = 4, y = 4;                                           \
+                assert_se(ROUND_UP(x, y) == 4);                         \
+                x = max_value, y = 1;                                   \
+                assert_se(ROUND_UP(x, y) == max_value);                 \
+                x = max_value, y = 2;                                   \
+                assert_se(ROUND_UP(x, y) == max_value);                 \
+                x = max_value, y = 3;                                   \
+                assert_se(ROUND_UP(x, y) == max_value);                 \
+                x = max_value, y = 4;                                   \
+                assert_se(ROUND_UP(x, y) == max_value);                 \
+                x = max_value-1, y = 1;                                 \
+                assert_se(ROUND_UP(x, y) == max_value-1);               \
+                x = max_value-1, y = 2;                                 \
+                assert_se(ROUND_UP(x, y) == max_value-1);               \
+                x = max_value-1, y = 4;                                 \
+                assert_se(ROUND_UP(x, y) == max_value);                 \
+        })
+
+TEST(ROUND_UP) {
+        TEST_ROUND_UP_BY_TYPE(uint8_t, UINT8_MAX);
+        TEST_ROUND_UP_BY_TYPE(uint16_t, UINT16_MAX);
+        TEST_ROUND_UP_BY_TYPE(uint32_t, UINT32_MAX);
+        TEST_ROUND_UP_BY_TYPE(uint64_t, UINT64_MAX);
+}
+
+TEST(u64_multiply_safe) {
+        assert_se(u64_multiply_safe(0, 0) == 0);
+        assert_se(u64_multiply_safe(10, 0) == 0);
+        assert_se(u64_multiply_safe(0, 10) == 0);
+        assert_se(u64_multiply_safe(10, 10) == 100);
+
+        assert_se(u64_multiply_safe(UINT64_MAX, 0) == 0);
+        assert_se(u64_multiply_safe(UINT64_MAX, 1) == UINT64_MAX);
+        assert_se(u64_multiply_safe(UINT64_MAX, 2) == 0);
+        assert_se(u64_multiply_safe(0, UINT64_MAX) == 0);
+        assert_se(u64_multiply_safe(1, UINT64_MAX) == UINT64_MAX);
+        assert_se(u64_multiply_safe(2, UINT64_MAX) == 0);
+
+        assert_se(u64_multiply_safe(UINT64_MAX / 2, 0) == 0);
+        assert_se(u64_multiply_safe(UINT64_MAX / 2, 1) == UINT64_MAX / 2);
+        assert_se(u64_multiply_safe(UINT64_MAX / 2, 2) == UINT64_MAX - 1);
+        assert_se(u64_multiply_safe(UINT64_MAX / 2, 3) == 0);
+        assert_se(u64_multiply_safe(0, UINT64_MAX / 2) == 0);
+        assert_se(u64_multiply_safe(1, UINT64_MAX / 2) == UINT64_MAX / 2);
+        assert_se(u64_multiply_safe(2, UINT64_MAX / 2) == UINT64_MAX - 1);
+        assert_se(u64_multiply_safe(3, UINT64_MAX / 2) == 0);
+
+        assert_se(u64_multiply_safe(UINT64_MAX, UINT64_MAX) == 0);
+}
+
+DEFINE_TEST_MAIN(LOG_INFO);