diff --git a/README.md b/README.md
index e21a586..02c8b4a 100644
--- a/README.md
+++ b/README.md
@@ -2,4 +2,4 @@
 
 # CI Playground
 
-This is where is play around with [Drone](https://ci.pbrinkmeier.de).
+This is where I play around with [Drone](https://ci.pbrinkmeier.de).
diff --git a/algo2/pairingheap/tests.h b/algo2/pairingheap/tests.h
index ba98dfd..2856a48 100644
--- a/algo2/pairingheap/tests.h
+++ b/algo2/pairingheap/tests.h
@@ -6,9 +6,14 @@
 #include <limits.h>
 
 // globals.
-int tests_passed = 0;
-char *current_label;
-int current_num;
+struct tests_state {
+  int passed_tests;
+  int run_tests;
+  int total_tests;
+  char *current_label;
+};
+
+struct tests_state tests_state = { 0, 0, 0, NULL };
 
 /* Basic idea:
 
@@ -30,23 +35,28 @@ DONE
 */
 
 #define TEST(LABEL, BLOCK) \
-current_label = LABEL; \
-current_num = __COUNTER__ + 1; \
+tests_state.current_label = LABEL; \
+tests_state.run_tests++; \
+tests_state.total_tests = __COUNTER__; \
 BLOCK; \
-fprintf(stderr, "[%3d] \x1b[32m%s ✓\x1b[0m\n", current_num, current_label); \
-tests_passed++;
+fprintf(stderr, "[%3d] \x1b[32m%s ✓\x1b[0m\n", tests_state.run_tests, tests_state.current_label); \
+tests_state.passed_tests++;
 
 #define ASSERT(EXPR) \
 if (!(EXPR)) { \
-  fprintf(stderr, "[%3d] \x1b[31m%s ❌\x1b[0m\n", current_num, current_label); \
+  fprintf(stderr, "[%3d] \x1b[31m%s ❌\x1b[0m\n", tests_state.run_tests, tests_state.current_label); \
   fprintf(stderr, "       Assertion failed in %s:%d:\n", __FILE__, __LINE__); \
   fprintf(stderr, "       " #EXPR "\n"); \
-  goto after_tests; \
+  goto tests_bail; \
 }
 
 #define DONE \
-after_tests: { \
-  int tests_total = __COUNTER__; \
-  fprintf(stderr, "[\x1b[%dm***\x1b[0m] %d/%d tests passed.\n", tests_passed == tests_total ? 32 : 31, tests_passed, tests_total); \
-  if (tests_passed != tests_total) exit(1); \
+tests_bail: { \
+  tests_state.total_tests = __COUNTER__; \
+  fprintf(stderr, "[\x1b[%dm***\x1b[0m] %d/%d tests passed", tests_state.passed_tests == tests_state.total_tests ? 32 : 31, tests_state.passed_tests, tests_state.total_tests); \
+  if (tests_state.total_tests > tests_state.run_tests) { \
+    fprintf(stderr, ", %d skipped", tests_state.total_tests - tests_state.run_tests); \
+  } \
+  fprintf(stderr, ".\n"); \
+  if (tests_state.passed_tests != tests_state.total_tests) exit(1); \
 }