ex32 plus runtests improvements

lcthw-remnants-2/c-skeleton/.gitignore

@@ -1,2 +1,3 @@
 tests/runtests
-tests/your_library_tests
+tests/*_tests
+tests/**/*_tests

lcthw-remnants-2/c-skeleton/tests/runtests.c

@@ -20,17 +20,25 @@ int run_tests_file(char *filename)
   return -1;
 }
 
-int main(void)
+int main(int argc, char *argv[])
 {
   int entcount = 0;
   int rc = 0;
   int i = 0;
   int ntests = 0;
-  char *testsdir = getenv("TESTS");
+  char *testsdir = NULL;
   char *valgrind = getenv("VALGRIND");
   struct dirent **namelist = NULL;
   struct dirent *ep = NULL;
 
+  if(argc > 1) {
+    testsdir = argv[1];
+  }
+
+  if(!testsdir) {
+    testsdir = getenv("TESTS");
+  }
+
   if(!testsdir) {
     testsdir = "./tests";
   }
@@ -70,14 +78,19 @@ int main(void)
       continue;
     }
 
-    printf("ERROR in test %s: here's tests/tests.log\n", filename);
-    printf("------\n");
-    rc = system("tail tests/tests.log");
+    printf("ERROR in test %s", filename);
+    if(access("tests/tests.log", R_OK) == 0) {
+      printf(": here's tests/tests.log\n");
+      printf("------\n");
+      rc = system("tail tests/tests.log");
+    } else {
+      printf("\n");
+    }
     goto error;
   }
 
   printf("------\n");
-  printf("Total of %d test files run.\n", ntests);
+  printf("Total of %d test file%s run.\n", ntests, ntests > 1 ? "s" : "");
 
   if(namelist) {
     free(namelist);