fix(test): register full ctest suite

CMakeLists.txt

@@ -75,7 +75,19 @@ if(IKV_BUILD_TESTS)
             ${CMAKE_CURRENT_SOURCE_DIR}/src
     )
     target_compile_features(ikv_tests PRIVATE c_std_99)
-    add_test(NAME ikv_tests COMMAND ikv_tests)
+
+    file(STRINGS "${CMAKE_CURRENT_SOURCE_DIR}/demo/unit_test.c" IKV_TEST_CASE_ROWS
+        REGEX "^    \\{\"[^\"]+\", test_[^}]+\\},?$"
+    )
+
+    foreach(IKV_TEST_CASE_ROW IN LISTS IKV_TEST_CASE_ROWS)
+        string(REGEX REPLACE "^    \\{\"([^\"]+)\", test_[^}]+\\},?$" "\\1" IKV_TEST_CASE_NAME "${IKV_TEST_CASE_ROW}")
+        string(MAKE_C_IDENTIFIER "${IKV_TEST_CASE_NAME}" IKV_TEST_CASE_ID)
+        add_test(
+            NAME "ikv_tests.${IKV_TEST_CASE_ID}"
+            COMMAND ikv_tests --case "${IKV_TEST_CASE_NAME}"
+        )
+    endforeach()
 endif()
 
 if(IKV_INSTALL)

demo/unit_test.c

@@ -1258,32 +1258,75 @@ static void log_case(bool passed, unsigned int index, unsigned int total, long e
     putchar('\n');
 }
 
-int main(void)
+static int run_test_case(unsigned int index, unsigned int total)
+{
+    test_context_t context;
+    clock_t start_time = 0;
+    clock_t end_time = 0;
+    long elapsed_ms = 0;
+    int result = 0;
+
+    memset(&context, 0, sizeof(context));
+#ifdef IKV_TESTING
+    ikv_test_hooks_reset();
+#endif
+    start_time = clock();
+    result = test_cases[index].fn(&context);
+    end_time = clock();
+    elapsed_ms = (long)(((end_time - start_time) * 1000) / CLOCKS_PER_SEC);
+
+    log_case(result == 0, index + 1u, total, elapsed_ms, test_cases[index].name, context.message);
+    return result;
+}
+
+static const test_case_t *find_test_case(const char *name, unsigned int *index_out)
+{
+    const unsigned int total = (unsigned int)(sizeof(test_cases) / sizeof(test_cases[0]));
+
+    if (!name)
+        return NULL;
+
+    for (unsigned int i = 0; i < total; ++i)
+    {
+        if (strcmp(test_cases[i].name, name) == 0)
+        {
+            if (index_out)
+                *index_out = i;
+            return &test_cases[i];
+        }
+    }
+
+    return NULL;
+}
+
+int main(int argc, char **argv)
 {
     const unsigned int total = (unsigned int)(sizeof(test_cases) / sizeof(test_cases[0]));
     unsigned int passed = 0u;
 
+    if (argc == 3 && strcmp(argv[1], "--case") == 0)
+    {
+        unsigned int index = 0u;
+
+        if (!find_test_case(argv[2], &index))
+        {
+            fprintf(stderr, "unknown test case: %s\n", argv[2]);
+            return 2;
+        }
+
+        return run_test_case(index, total);
+    }
+
+    if (argc != 1)
+    {
+        fprintf(stderr, "usage: %s [--case <test name>]\n", argv[0]);
+        return 2;
+    }
+
     for (unsigned int i = 0; i < total; ++i)
     {
-        test_context_t context;
-        clock_t start_time = 0;
-        clock_t end_time = 0;
-        long elapsed_ms = 0;
-        int result = 0;
-
-        memset(&context, 0, sizeof(context));
-#ifdef IKV_TESTING
-        ikv_test_hooks_reset();
-#endif
-        start_time = clock();
-        result = test_cases[i].fn(&context);
-        end_time = clock();
-        elapsed_ms = (long)(((end_time - start_time) * 1000) / CLOCKS_PER_SEC);
-
-        if (result == 0)
+        if (run_test_case(i, total) == 0)
             ++passed;
-
-        log_case(result == 0, i + 1u, total, elapsed_ms, test_cases[i].name, context.message);
     }
 
     if (passed != total)