1 files changed, 84 insertions, 0 deletions
diff --git a/libunwindstack/tests/MemoryLocalTest.cpp b/libunwindstack/tests/MemoryLocalTest.cpp
new file mode 100644
index 000000000..49ece9dda
--- /dev/null
+++ b/libunwindstack/tests/MemoryLocalTest.cpp
@@ -0,0 +1,84 @@
+/*
+ * 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 <stdint.h>
+#include <string.h>
+
+#include <vector>
+
+#include <gtest/gtest.h>
+
+#include "Memory.h"
+
+#include "LogFake.h"
+
+class MemoryLocalTest : public ::testing::Test {
+ protected:
+  void SetUp() override {
+    ResetLogs();
+  }
+};
+
+TEST_F(MemoryLocalTest, read) {
+  std::vector<uint8_t> src(1024);
+  memset(src.data(), 0x4c, 1024);
+
+  MemoryLocal local;
+
+  std::vector<uint8_t> dst(1024);
+  ASSERT_TRUE(local.Read(reinterpret_cast<uint64_t>(src.data()), dst.data(), 1024));
+  ASSERT_EQ(0, memcmp(src.data(), dst.data(), 1024));
+  for (size_t i = 0; i < 1024; i++) {
+    ASSERT_EQ(0x4cU, dst[i]);
+  }
+
+  memset(src.data(), 0x23, 512);
+  ASSERT_TRUE(local.Read(reinterpret_cast<uint64_t>(src.data()), dst.data(), 1024));
+  ASSERT_EQ(0, memcmp(src.data(), dst.data(), 1024));
+  for (size_t i = 0; i < 512; i++) {
+    ASSERT_EQ(0x23U, dst[i]);
+  }
+  for (size_t i = 512; i < 1024; i++) {
+    ASSERT_EQ(0x4cU, dst[i]);
+  }
+}
+
+TEST_F(MemoryLocalTest, read_string) {
+  std::string name("string_in_memory");
+
+  MemoryLocal local;
+
+  std::vector<uint8_t> dst(1024);
+  std::string dst_name;
+  ASSERT_TRUE(local.ReadString(reinterpret_cast<uint64_t>(name.c_str()), &dst_name));
+  ASSERT_EQ("string_in_memory", dst_name);
+
+  ASSERT_TRUE(local.ReadString(reinterpret_cast<uint64_t>(&name[7]), &dst_name));
+  ASSERT_EQ("in_memory", dst_name);
+
+  ASSERT_TRUE(local.ReadString(reinterpret_cast<uint64_t>(&name[7]), &dst_name, 10));
+  ASSERT_EQ("in_memory", dst_name);
+
+  ASSERT_FALSE(local.ReadString(reinterpret_cast<uint64_t>(&name[7]), &dst_name, 9));
+}
+
+TEST_F(MemoryLocalTest, read_illegal) {
+  MemoryLocal local;
+
+  std::vector<uint8_t> dst(100);
+  ASSERT_FALSE(local.Read(0, dst.data(), 1));
+  ASSERT_FALSE(local.Read(0, dst.data(), 100));
+}