diff --git a/test.c b/test.c
index 1031eb4..32942a6 100644
--- a/test.c
+++ b/test.c
@@ -5,21 +5,22 @@
 
 #include "ds.h"
 
-#define test(name, tests) do {                                        \
-    const char *_test_name = name;                                    \
-    int _tests_passed = 0;                                            \
-    int _tests = 0;                                                   \
-    tests                                                             \
-    _tests_passed += _tests;                                          \
-    printf("%s: %d/%d tests passed\n", name, _tests_passed, _tests);  \
-  } while (0)
+#define test(name, tests) do {                                     \
+  const char *_test_name = name;                                   \
+  int _tests_passed = 0;                                           \
+  int _tests = 0;                                                  \
+  tests                                                            \
+  _tests_passed += _tests;                                         \
+  printf("%s: %d/%d tests passed\n", name, _tests_passed, _tests); \
+} while (0)
 
-#define it(message, test) do {                      \
-  _tests++;                                         \
-  if (!(test)) {                                    \
-    printf("%s %s FAILED\n", _test_name, message);  \
-    _tests_passed--;                                \
-  }                                                 \
+#define it(message, test) do {                                                 \
+  _tests++;                                                                    \
+  if (!(test)) {                                                               \
+    printf("%s %s FAILED @ %s:%d\n", _test_name, message, __FILE__, __LINE__); \
+    printf(" -> test condition: (%s)\n", #test);                               \
+    _tests_passed--;                                                           \
+  }                                                                            \
 } while (0)
 
 typedef struct {