1 files changed, 70 insertions, 0 deletions
diff --git a/runtime/dex_instruction_visitor_test.cc b/runtime/dex_instruction_visitor_test.cc
new file mode 100644
index 0000000000..8f42b0c9a4
--- /dev/null
+++ b/runtime/dex_instruction_visitor_test.cc
@@ -0,0 +1,70 @@
+/*
+ * Copyright (C) 2011 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 "dex_instruction_visitor.h"
+
+#include <iostream>
+
+#include "UniquePtr.h"
+#include "gtest/gtest.h"
+
+namespace art {
+
+class TestVisitor : public DexInstructionVisitor<TestVisitor> {};
+
+TEST(InstructionTest, Init) {
+  UniquePtr<TestVisitor> visitor(new TestVisitor);
+}
+
+class CountVisitor : public DexInstructionVisitor<CountVisitor> {
+ public:
+  int count_;
+
+  CountVisitor() : count_(0) {}
+
+  void Do_Default(const Instruction*) {
+    ++count_;
+  }
+};
+
+TEST(InstructionTest, Count) {
+  CountVisitor v0;
+  const uint16_t c0[] = {};
+  v0.Visit(c0, sizeof(c0));
+  EXPECT_EQ(0, v0.count_);
+
+  CountVisitor v1;
+  const uint16_t c1[] = { 0 };
+  v1.Visit(c1, sizeof(c1));
+  EXPECT_EQ(1, v1.count_);
+
+  CountVisitor v2;
+  const uint16_t c2[] = { 0, 0 };
+  v2.Visit(c2, sizeof(c2));
+  EXPECT_EQ(2, v2.count_);
+
+  CountVisitor v3;
+  const uint16_t c3[] = { 0, 0, 0, };
+  v3.Visit(c3, sizeof(c3));
+  EXPECT_EQ(3, v3.count_);
+
+  CountVisitor v4;
+  const uint16_t c4[] = { 0, 0, 0, 0  };
+  v4.Visit(c4, sizeof(c4));
+  EXPECT_EQ(4, v4.count_);
+}
+
+}  // namespace art