upload android base code part6

android/system/update_engine/common/hwid_override_unittest.cc

@@ -0,0 +1,67 @@
+//
+// Copyright (C) 2012 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 "update_engine/common/hwid_override.h"
+
+#include <string>
+
+#include <base/files/file_path.h>
+#include <base/files/file_util.h>
+#include <base/files/scoped_temp_dir.h>
+#include <gtest/gtest.h>
+
+namespace chromeos_update_engine {
+
+class HwidOverrideTest : public ::testing::Test {
+ public:
+  HwidOverrideTest() {}
+  ~HwidOverrideTest() override = default;
+
+  void SetUp() override {
+    ASSERT_TRUE(tempdir_.CreateUniqueTempDir());
+    ASSERT_TRUE(base::CreateDirectory(tempdir_.path().Append("etc")));
+  }
+
+ protected:
+  base::ScopedTempDir tempdir_;
+
+ private:
+  DISALLOW_COPY_AND_ASSIGN(HwidOverrideTest);
+};
+
+TEST_F(HwidOverrideTest, ReadGood) {
+  std::string expected_hwid("expected");
+  std::string keyval(HwidOverride::kHwidOverrideKey);
+  keyval += ("=" + expected_hwid);
+  ASSERT_EQ(base::WriteFile(tempdir_.path().Append("etc/lsb-release"),
+                            keyval.c_str(), keyval.length()),
+            static_cast<int>(keyval.length()));
+  EXPECT_EQ(expected_hwid, HwidOverride::Read(tempdir_.path()));
+}
+
+TEST_F(HwidOverrideTest, ReadNothing) {
+  std::string keyval("SOMETHING_ELSE=UNINTERESTING");
+  ASSERT_EQ(base::WriteFile(tempdir_.path().Append("etc/lsb-release"),
+                            keyval.c_str(), keyval.length()),
+            static_cast<int>(keyval.length()));
+  EXPECT_EQ(std::string(), HwidOverride::Read(tempdir_.path()));
+}
+
+TEST_F(HwidOverrideTest, ReadFailure) {
+  EXPECT_EQ(std::string(), HwidOverride::Read(tempdir_.path()));
+}
+
+}  // namespace chromeos_update_engine