Check vdex file is valid in VdexFile::Open.

Test: m test-art-host, including new vdex_file_test.
Bug: 34339100
Change-Id: I0fe01760779f3876d6790a5443785a4f7289a717

1 files changed, 46 insertions, 0 deletions

diff --git a/runtime/vdex_file_test.cc b/runtime/vdex_file_test.cc
new file mode 100644
index 0000000000..909e117ccc
--- /dev/null
+++ b/runtime/vdex_file_test.cc
@@ -0,0 +1,46 @@
+/*
+ * Copyright (C) 2017 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.
+ */
+
+#include "vdex_file.h"
+
+#include <string>
+
+#include <gtest/gtest.h>
+
+#include "common_runtime_test.h"
+
+namespace art {
+
+class VdexFileTest : public CommonRuntimeTest {
+};
+
+TEST_F(VdexFileTest, OpenEmptyVdex) {
+  // Verify we fail to open an empty vdex file.
+  ScratchFile tmp;
+  std::string error_msg;
+  std::unique_ptr<VdexFile> vdex = VdexFile::Open(tmp.GetFd(),
+                                                  0,
+                                                  tmp.GetFilename(),
+                                                  /*writable*/false,
+                                                  /*low_4gb*/false,
+                                                  &error_msg);
+  EXPECT_TRUE(vdex == nullptr);
+
+  vdex = VdexFile::Open(tmp.GetFilename(), /*writable*/false, /*low_4gb*/false, &error_msg);
+  EXPECT_TRUE(vdex == nullptr);
+}
+
+}  // namespace art