1 files changed, 42 insertions, 0 deletions
diff --git a/src/main/javatest/com/google/security/cryptauth/lib/securemessage/NullsGoogle3Test.java b/src/main/javatest/com/google/security/cryptauth/lib/securemessage/NullsGoogle3Test.java
new file mode 100644
index 0000000..c28d2f9
--- /dev/null
+++ b/src/main/javatest/com/google/security/cryptauth/lib/securemessage/NullsGoogle3Test.java
@@ -0,0 +1,42 @@
+// Copyright 2020 Google LLC
+//
+// 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
+//
+//     https://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 com.google.security.cryptauth.lib.securemessage;
+
+import com.google.common.testing.NullPointerTester;
+import com.google.security.cryptauth.lib.securemessage.SecureMessageProto.SecureMessage;
+import junit.framework.TestCase;
+
+/**
+ * Non-portable Google3-based test to check null pointer behavior.
+ */
+public class NullsGoogle3Test extends TestCase {
+
+  /**
+   *  We test all of the classes in one place to avoid a proliferation of similar test cases,
+   * noting that {@link NullPointerTester} emits the name of the class where the breakge occurs.
+   */
+  public void testNulls() {
+    final NullPointerTester tester = new NullPointerTester();
+    tester.testAllPublicStaticMethods(CryptoOps.class);
+    tester.testAllPublicStaticMethods(PublicKeyProtoUtil.class);
+
+    tester.setDefault(SecureMessage.class, SecureMessage.getDefaultInstance());
+    tester.testAllPublicStaticMethods(SecureMessageParser.class);
+
+    tester.testAllPublicStaticMethods(SecureMessageBuilder.class);
+    tester.testAllPublicConstructors(SecureMessageBuilder.class);
+    tester.testAllPublicInstanceMethods(new SecureMessageBuilder());
+  }
+}