Update test_arena.c

src/test_arena.c

@@ -3,9 +3,11 @@
 
 // _start test_arena_alloc.c
 #include "arena.h"
+
 #include <err.h>
-#include <stdio.h>
 #include <errno.h>
+#include <stdio.h>
+#include <stdlib.h>
 
 static struct arena *default_arena = NULL;
 
@@ -17,28 +19,14 @@ int main()
         err(errno, "failed to allocate arena");
     }
 
-	printf("\n%p\n", default_arena->next);
+	printf("\ntest 1: %s", "attempt to allocate arena->cap x 1 byte");
 
-    char *ten_A = arena_alloc(default_arena, 11 * sizeof *ten_A);
-    char *ten_B = arena_alloc(default_arena, 11 * sizeof *ten_B);
-    char *ten_C = arena_alloc(default_arena, 11 * sizeof *ten_C);
-
-    for (size_t i=0; i<10; ++i) {
-        ten_A[i] = 'A';
-        ten_B[i] = 'B';
-        ten_C[i] = 'C';
-    }
-
-    ten_A[10] = '\0';
-    ten_B[10] = '\0';
-    ten_C[10] = '\0';
-
-    printf("\n%s %s %s", ten_A, ten_B, ten_C);
-	printf("\n%p\n", default_arena->next);
-
-	arena_reset(default_arena);
-
-	printf("\n%p\n", default_arena->next);
+	for (size_t i = 0; i < default_arena->cap; i++) {
+		volatile void *c = arena_alloc(default_arena, 1);
+		if (c == NULL) {
+			err(EXIT_FAILURE, "failed to allocate memory");
+		}	
+	}
 
     return 0;
 }