1 files changed, 43 insertions, 0 deletions
diff --git a/test/scudo/quarantine.cpp b/test/scudo/quarantine.cpp
new file mode 100644
index 000000000..4ce0197ac
--- /dev/null
+++ b/test/scudo/quarantine.cpp
@@ -0,0 +1,43 @@
+// RUN: %clang_scudo %s -o %t
+// RUN: SCUDO_OPTIONS=QuarantineSizeMb=1 %run %t 2>&1
+
+// Tests that the quarantine prevents a chunk from being reused right away.
+// Also tests that a chunk will eventually become available again for
+// allocation when the recycling criteria has been met.
+
+#include <malloc.h>
+#include <stdlib.h>
+#include <string.h>
+
+int main(int argc, char **argv)
+{
+  void *p, *old_p;
+  size_t size = 1U << 16;
+
+  // The delayed freelist will prevent a chunk from being available right away
+  p = malloc(size);
+  if (!p)
+    return 1;
+  old_p = p;
+  free(p);
+  p = malloc(size);
+  if (!p)
+    return 1;
+  if (old_p == p)
+    return 1;
+  free(p);
+
+  // Eventually the chunk should become available again
+  bool found = false;
+  for (int i = 0; i < 0x100 && found == false; i++) {
+    p = malloc(size);
+    if (!p)
+      return 1;
+    found = (p == old_p);
+    free(p);
+  }
+  if (found == false)
+    return 1;
+
+  return 0;
+}