Add test for Keystore put overflow

Bug: 22802399
(cherry-picked from commit 992a20df596984f9f9cc67c70431580645cc0592)

Change-Id: I9a3ff7fcb84d8172c44fbe43dc21c5974216c48d
diff --git a/tests/tests/security/src/android/security/cts/PutOverflowTest.java b/tests/tests/security/src/android/security/cts/PutOverflowTest.java
new file mode 100644
index 0000000..e0eb34c
--- /dev/null
+++ b/tests/tests/security/src/android/security/cts/PutOverflowTest.java
@@ -0,0 +1,38 @@
+/*
+ * Copyright (C) 2015 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package android.security.cts;
+
+import android.test.AndroidTestCase;
+import java.lang.reflect.Method;
+
+public class PutOverflowTest extends AndroidTestCase {
+    public void testCrash() throws Exception {
+        try {
+            Class<?> keystoreClass = Class.forName("android.security.KeyStore");
+            Method getInstance = keystoreClass.getMethod("getInstance");
+            Method put = keystoreClass.getMethod("put",
+                    String.class, byte[].class, int.class, int.class);
+            Object keystore = getInstance.invoke(null);
+            byte[] buffer = new byte[65536];
+            Boolean result = (Boolean)put.invoke(keystore, "crashFile", buffer, -1, 0);
+            assertTrue("Fix for ANDROID-22802399 not present", result);
+        } catch (ReflectiveOperationException ignored) {
+            // Since this test requires reflection avoid causing undue failures if classes or
+            // methods were changed.
+        }
+    }
+}