upload android base code part3

android/bionic/tests/sys_statvfs_test.cpp

@@ -0,0 +1,66 @@
+/*
+ * Copyright (C) 2013 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 <gtest/gtest.h>
+
+#include <sys/statvfs.h>
+
+#include <sys/types.h>
+#include <sys/stat.h>
+#include <fcntl.h>
+
+#include <string>
+
+template <typename StatVfsT> void Check(StatVfsT& sb) {
+  EXPECT_EQ(4096U, sb.f_bsize);
+  EXPECT_EQ(0U, sb.f_bfree);
+  EXPECT_EQ(0U, sb.f_ffree);
+  EXPECT_EQ(0U, sb.f_fsid);
+  EXPECT_EQ(255U, sb.f_namemax);
+
+  // The kernel sets a private bit to indicate that f_flags is valid.
+  // This flag is not supposed to be exposed to libc clients.
+  static const uint32_t ST_VALID = 0x0020;
+  EXPECT_TRUE((sb.f_flag & ST_VALID) == 0) << sb.f_flag;
+}
+
+TEST(sys_statvfs, statvfs) {
+  struct statvfs sb;
+  ASSERT_EQ(0, statvfs("/proc", &sb));
+  Check(sb);
+}
+
+TEST(sys_statvfs, statvfs64) {
+  struct statvfs64 sb;
+  ASSERT_EQ(0, statvfs64("/proc", &sb));
+  Check(sb);
+}
+
+TEST(sys_statvfs, fstatvfs) {
+  struct statvfs sb;
+  int fd = open("/proc", O_RDONLY);
+  ASSERT_EQ(0, fstatvfs(fd, &sb));
+  close(fd);
+  Check(sb);
+}
+
+TEST(sys_statvfs, fstatvfs64) {
+  struct statvfs64 sb;
+  int fd = open("/proc", O_RDONLY);
+  ASSERT_EQ(0, fstatvfs64(fd, &sb));
+  close(fd);
+  Check(sb);
+}