1 files changed, 26 insertions, 0 deletions
diff --git a/testing/pseudo_retainable.h b/testing/pseudo_retainable.h
new file mode 100644
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+++ b/testing/pseudo_retainable.h
@@ -0,0 +1,26 @@
+// Copyright 2018 PDFium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+#ifndef TESTING_PSEUDO_RETAINABLE_H_
+#define TESTING_PSEUDO_RETAINABLE_H_
+
+class PseudoRetainable {
+ public:
+  PseudoRetainable() = default;
+  void Retain() { ++retain_count_; }
+  void Release() {
+    if (++release_count_ == retain_count_)
+      alive_ = false;
+  }
+  bool alive() const { return alive_; }
+  int retain_count() const { return retain_count_; }
+  int release_count() const { return release_count_; }
+
+ private:
+  bool alive_ = true;
+  int retain_count_ = 0;
+  int release_count_ = 0;
+};
+
+#endif  // TESTING_PSEUDO_RETAINABLE_H_