Add DiskInfo struct and functions.

base/process/process_metrics_linux_unittests.cc

+// Copyright 2013 The Chromium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+#include "base/process/process_metrics.h"
+
+#include <sstream>
+#include <string>
+
+#include "testing/gtest/include/gtest/gtest.h"
+
+
+namespace base {
+namespace debug {
+
+// Tests for SystemMetrics.
+// Exists as a class so it can be a friend of SystemMetrics.
+class SystemMetricsTest : public testing::Test {
+ public:
+  SystemMetricsTest() {}
+
+ private:
+  DISALLOW_COPY_AND_ASSIGN(SystemMetricsTest);
+};
+
+/////////////////////////////////////////////////////////////////////////////
+
+TEST_F(SystemMetricsTest, ValidDiskName) {
+  std::string invalid_input1 = "";
+  std::string invalid_input2 = "s";
+  std::string invalid_input3 = "sdz+";
+  std::string invalid_input4 = "hda0";
+  std::string invalid_input5 = "mmcbl";
+  std::string invalid_input6 = "mmcblka";
+  std::string invalid_input7 = "mmcblkb";
+  std::string invalid_input8 = "mmmblk0";
+
+  EXPECT_FALSE(ValidDiskName(invalid_input1));
+  EXPECT_FALSE(ValidDiskName(invalid_input2));
+  EXPECT_FALSE(ValidDiskName(invalid_input3));
+  EXPECT_FALSE(ValidDiskName(invalid_input4));
+  EXPECT_FALSE(ValidDiskName(invalid_input5));
+  EXPECT_FALSE(ValidDiskName(invalid_input6));
+  EXPECT_FALSE(ValidDiskName(invalid_input7));
+  EXPECT_FALSE(ValidDiskName(invalid_input8));
+
+  std::string valid_input1 = "sda";
+  std::string valid_input2 = "sdaaaa";
+  std::string valid_input3 = "hdz";
+  std::string valid_input4 = "mmcblk0";
+  std::string valid_input5 = "mmcblk999";
+
+  EXPECT_TRUE(ValidDiskName(valid_input1));
+  EXPECT_TRUE(ValidDiskName(valid_input2));
+  EXPECT_TRUE(ValidDiskName(valid_input3));
+  EXPECT_TRUE(ValidDiskName(valid_input4));
+  EXPECT_TRUE(ValidDiskName(valid_input5));
+}
+
+}  // namespace debug
+}  // namespace base