1.1 --- a/tests/test_printf.c Tue Jan 16 23:12:43 2024 +0100
1.2 +++ b/tests/test_printf.c Tue Jan 16 23:13:01 2024 +0100
1.3 @@ -294,6 +294,107 @@
1.4 free(expected);
1.5 }
1.6
1.7 +CX_TEST(test_sprintf_no_realloc) {
1.8 + char *buf = malloc(16);
1.9 + CxTestingAllocator talloc;
1.10 + cx_testing_allocator_init(&talloc);
1.11 + CxAllocator *alloc = &talloc.base;
1.12 + CX_TEST_DO {
1.13 + char *oldbuf = buf;
1.14 + size_t len = cx_sprintf_a(alloc, &buf, 16, "Test %d %s", 47, "string");
1.15 + CX_TEST_ASSERT(oldbuf == buf);
1.16 + CX_TEST_ASSERT(len == 14);
1.17 + CX_TEST_ASSERT(0 == memcmp(buf, "Test 47 string", 15));
1.18 + CX_TEST_ASSERT(cx_testing_allocator_verify(&talloc));
1.19 + }
1.20 + cx_testing_allocator_destroy(&talloc);
1.21 + free(buf);
1.22 +}
1.23 +
1.24 +CX_TEST(test_sprintf_realloc) {
1.25 + CxTestingAllocator talloc;
1.26 + cx_testing_allocator_init(&talloc);
1.27 + CxAllocator *alloc = &talloc.base;
1.28 + char *buf = cxMalloc(alloc, 8);
1.29 + CX_TEST_DO {
1.30 + size_t len = cx_sprintf_a(alloc, &buf, 8, "Test %d %s", 47, "foobar");
1.31 + CX_TEST_ASSERT(len == 14);
1.32 + CX_TEST_ASSERT(0 == memcmp(buf, "Test 47 foobar", 15));
1.33 + cxFree(alloc, buf);
1.34 + CX_TEST_ASSERT(cx_testing_allocator_verify(&talloc));
1.35 + }
1.36 + cx_testing_allocator_destroy(&talloc);
1.37 +}
1.38 +
1.39 +CX_TEST(test_sprintf_realloc_to_fit_terminator) {
1.40 + CxTestingAllocator talloc;
1.41 + cx_testing_allocator_init(&talloc);
1.42 + CxAllocator *alloc = &talloc.base;
1.43 + // make it so that only the zero-terminator does not fit
1.44 + char *buf = cxMalloc(alloc, 14);
1.45 + CX_TEST_DO {
1.46 + size_t len = cx_sprintf_a(alloc, &buf, 14, "Test %d %s", 13, "string");
1.47 + CX_TEST_ASSERT(len == 14);
1.48 + CX_TEST_ASSERT(0 == memcmp(buf, "Test 13 string", 15));
1.49 + cxFree(alloc, buf);
1.50 + CX_TEST_ASSERT(cx_testing_allocator_verify(&talloc));
1.51 + }
1.52 + cx_testing_allocator_destroy(&talloc);
1.53 +}
1.54 +
1.55 +CX_TEST(test_sprintf_s_no_alloc) {
1.56 + char buf[16];
1.57 + CxTestingAllocator talloc;
1.58 + cx_testing_allocator_init(&talloc);
1.59 + CxAllocator *alloc = &talloc.base;
1.60 + CX_TEST_DO {
1.61 + char *str;
1.62 + size_t len = cx_sprintf_sa(alloc, buf, 16, &str, "Test %d %s", 47, "string");
1.63 + CX_TEST_ASSERT(str == buf);
1.64 + CX_TEST_ASSERT(len == 14);
1.65 + CX_TEST_ASSERT(0 == memcmp(buf, "Test 47 string", 15));
1.66 + CX_TEST_ASSERT(0 == memcmp(str, "Test 47 string", 15));
1.67 + CX_TEST_ASSERT(cx_testing_allocator_verify(&talloc));
1.68 + }
1.69 + cx_testing_allocator_destroy(&talloc);
1.70 +}
1.71 +
1.72 +CX_TEST(test_sprintf_s_alloc) {
1.73 + char buf[16];
1.74 + memcpy(buf, "0123456789abcdef", 16);
1.75 + CxTestingAllocator talloc;
1.76 + cx_testing_allocator_init(&talloc);
1.77 + CxAllocator *alloc = &talloc.base;
1.78 + CX_TEST_DO {
1.79 + char *str;
1.80 + size_t len = cx_sprintf_sa(alloc, buf, 16, &str, "Hello %d %s", 4711, "larger string");
1.81 + CX_TEST_ASSERT(str != buf);
1.82 + CX_TEST_ASSERT(len == 24);
1.83 + CX_TEST_ASSERT(0 == memcmp(str, "Hello 4711 larger string", 25));
1.84 + cxFree(alloc, str);
1.85 + CX_TEST_ASSERT(cx_testing_allocator_verify(&talloc));
1.86 + }
1.87 + cx_testing_allocator_destroy(&talloc);
1.88 +}
1.89 +
1.90 +CX_TEST(test_sprintf_s_alloc_to_fit_terminator) {
1.91 + char buf[16];
1.92 + memcpy(buf, "0123456789abcdef", 16);
1.93 + CxTestingAllocator talloc;
1.94 + cx_testing_allocator_init(&talloc);
1.95 + CxAllocator *alloc = &talloc.base;
1.96 + CX_TEST_DO {
1.97 + char *str;
1.98 + size_t len = cx_sprintf_sa(alloc, buf, 16, &str, "Hello %d %s", 112, "string");
1.99 + CX_TEST_ASSERT(str != buf);
1.100 + CX_TEST_ASSERT(len == 16);
1.101 + CX_TEST_ASSERT(0 == memcmp(str, "Hello 112 string", 17)); // include terminator
1.102 + cxFree(alloc, str);
1.103 + CX_TEST_ASSERT(cx_testing_allocator_verify(&talloc));
1.104 + }
1.105 + cx_testing_allocator_destroy(&talloc);
1.106 +}
1.107 +
1.108 CxTestSuite *cx_test_suite_printf(void) {
1.109 CxTestSuite *suite = cx_test_suite_new("printf");
1.110
1.111 @@ -303,6 +404,12 @@
1.112 cx_test_register(suite, test_fprintf);
1.113 cx_test_register(suite, test_asprintf);
1.114 cx_test_register(suite, test_asprintf_large_string);
1.115 + cx_test_register(suite, test_sprintf_no_realloc);
1.116 + cx_test_register(suite, test_sprintf_realloc);
1.117 + cx_test_register(suite, test_sprintf_realloc_to_fit_terminator);
1.118 + cx_test_register(suite, test_sprintf_s_no_alloc);
1.119 + cx_test_register(suite, test_sprintf_s_alloc);
1.120 + cx_test_register(suite, test_sprintf_s_alloc_to_fit_terminator);
1.121
1.122 return suite;
1.123 }
