Finished the test (#17)

Add dap common test

test/core/dap_common_test.c

+#include "dap_common_test.h"
+
+void test_put_int() {
+    const int INT_VAL = 10;
+    const char * EXPECTED_RESULT = "10";
+    char * result_arr = itoa(INT_VAL);
+    assert(strcmp(result_arr, EXPECTED_RESULT) == 0 && "test_put_int failed");
+}
+
+void dap_common_test_run() {
+    printf("Start running dap_common_test\n");
+    test_put_int();
+}

test/core/dap_common_test.h

+#pragma once
+#include "dap_common.h"
+#include "assert.h"
+#include "stdbool.h"
+#include "stdlib.h"
+#include "stdio.h"
+#include "string.h"
+
+extern void dap_common_test_run(void);

test/core/main.c

 #include "dap_config_test.h"
+#include "dap_common_test.h"
 #include "dap_common.h"
 
 int main(void) {
     // switch off debug info from library
     set_log_level(L_CRITICAL);
     dap_config_tests_run();
+    dap_common_test_run();
 }

test/core/test_headers.h

 #pragma once
 
 #include "dap_config_test.h"
+#include "dap_common_test.h"