Move //mojo/services/X/public/... to //mojo/services/X/... (part 1).

mojo/services/files/public/c/tests/fd_table_unittest.cc

-// Copyright 2015 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 "files/public/c/lib/fd_table.h"
-
-#include <errno.h>
-
-#include <memory>
-
-#include "files/public/c/lib/fd_impl.h"
-#include "files/public/c/tests/mock_errno_impl.h"
-#include "testing/gtest/include/gtest/gtest.h"
-
-namespace mojio {
-namespace {
-
-class TestFDImpl : public FDImpl {
- public:
-  TestFDImpl() : FDImpl(nullptr) {}
-  ~TestFDImpl() override {}
-
-  // |FDImpl| implementation:
-  bool Close() override { return false; }
-  std::unique_ptr<FDImpl> Dup() override { return nullptr; }
-  bool Ftruncate(mojio_off_t) override { return false; }
-  mojio_off_t Lseek(mojio_off_t, int) override { return -1; }
-  mojio_ssize_t Read(void*, size_t) override { return -1; }
-  mojio_ssize_t Write(const void*, size_t) override { return -1; }
-  bool Fstat(struct mojio_stat*) override { return false; }
-
-  MOJO_DISALLOW_COPY_AND_ASSIGN(TestFDImpl);
-};
-
-TEST(FDTableTest, AddGetRemove) {
-  const int kLastErrorSentinel = -12345;
-  test::MockErrnoImpl errno_impl(kLastErrorSentinel);
-
-  FDTable fd_table(&errno_impl, 100);
-
-  EXPECT_EQ(&errno_impl, fd_table.errno_impl());
-  EXPECT_EQ(100u, fd_table.max_num_fds());
-
-  // Keep these as raw pointers, so we'll be able to check identity.
-  FDImpl* impl0 = new TestFDImpl();
-  EXPECT_EQ(0, fd_table.Add(std::unique_ptr<FDImpl>(impl0)));
-  EXPECT_EQ(kLastErrorSentinel, errno_impl.Get());  // No error.
-
-  // Should be able to get it.
-  errno_impl.Reset(kLastErrorSentinel);
-  EXPECT_EQ(impl0, fd_table.Get(0));
-  EXPECT_EQ(kLastErrorSentinel, errno_impl.Get());  // No error.
-
-  // Add a couple more. (FDs are allocated in order.)
-  errno_impl.Reset(kLastErrorSentinel);
-  FDImpl* impl1 = new TestFDImpl();
-  EXPECT_EQ(1, fd_table.Add(std::unique_ptr<FDImpl>(impl1)));
-  FDImpl* impl2 = new TestFDImpl();
-  EXPECT_EQ(2, fd_table.Add(std::unique_ptr<FDImpl>(impl2)));
-  EXPECT_EQ(kLastErrorSentinel, errno_impl.Get());  // No error.
-
-  // Should still be able to get everything.
-  errno_impl.Reset(kLastErrorSentinel);
-  EXPECT_EQ(impl0, fd_table.Get(0));
-  EXPECT_EQ(impl1, fd_table.Get(1));
-  EXPECT_EQ(impl2, fd_table.Get(2));
-  EXPECT_EQ(kLastErrorSentinel, errno_impl.Get());  // No error.
-
-  // Remove 1.
-  errno_impl.Reset(kLastErrorSentinel);
-  std::unique_ptr<FDImpl> removed_impl1 = fd_table.Remove(1);
-  EXPECT_EQ(kLastErrorSentinel, errno_impl.Get());  // No error.
-  EXPECT_EQ(impl1, removed_impl1.get());
-  // Note: Don't deallocate |impl1|/|removed_impl1|, so that |new_impl1| (below)
-  // definitely won't be allocated at the same address.
-
-  // The next FD should be from the newly-vacated spot.
-  errno_impl.Reset(kLastErrorSentinel);
-  FDImpl* new_impl1 = new TestFDImpl();
-  EXPECT_EQ(1, fd_table.Add(std::unique_ptr<FDImpl>(new_impl1)));
-  EXPECT_EQ(kLastErrorSentinel, errno_impl.Get());  // No error.
-
-  errno_impl.Reset(kLastErrorSentinel);
-  EXPECT_EQ(new_impl1, fd_table.Get(1));
-  EXPECT_EQ(kLastErrorSentinel, errno_impl.Get());  // No error.
-
-  // Remove 0 and 2.
-  errno_impl.Reset(kLastErrorSentinel);
-  std::unique_ptr<FDImpl> removed_impl0 = fd_table.Remove(0);
-  std::unique_ptr<FDImpl> removed_impl2 = fd_table.Remove(2);
-  EXPECT_EQ(kLastErrorSentinel, errno_impl.Get());  // No error.
-  EXPECT_EQ(impl0, removed_impl0.get());
-  EXPECT_EQ(impl2, removed_impl2.get());
-
-  // The next FD should be from the first vacant spot.
-  errno_impl.Reset(kLastErrorSentinel);
-  FDImpl* new_impl0 = new TestFDImpl();
-  EXPECT_EQ(0, fd_table.Add(std::unique_ptr<FDImpl>(new_impl0)));
-  EXPECT_EQ(kLastErrorSentinel, errno_impl.Get());  // No error.
-}
-
-TEST(FDTableTest, GetInvalid) {
-  const int kLastErrorSentinel = -12345;
-  test::MockErrnoImpl errno_impl(kLastErrorSentinel);
-  FDTable fd_table(&errno_impl, 100);
-
-  // Can't get 0 yet. Error should be EBADF.
-  EXPECT_EQ(nullptr, fd_table.Get(0));
-  EXPECT_EQ(EBADF, errno_impl.Get());
-
-  // Add 0; should then be able to get 0.
-  errno_impl.Reset(kLastErrorSentinel);
-  EXPECT_EQ(0, fd_table.Add(std::unique_ptr<FDImpl>(new TestFDImpl())));
-  EXPECT_TRUE(fd_table.Get(0));
-  EXPECT_EQ(kLastErrorSentinel, errno_impl.Get());  // No error.
-
-  // Can't get 1.
-  errno_impl.Reset(kLastErrorSentinel);
-  EXPECT_EQ(nullptr, fd_table.Get(1));
-  EXPECT_EQ(EBADF, errno_impl.Get());
-}
-
-TEST(FDTableTest, RemoveInvalid) {
-  const int kLastErrorSentinel = -12345;
-  test::MockErrnoImpl errno_impl(kLastErrorSentinel);
-  FDTable fd_table(&errno_impl, 100);
-
-  // Can't remove 0 yet. Error should be EBADF.
-  EXPECT_EQ(nullptr, fd_table.Remove(0));
-  EXPECT_EQ(EBADF, errno_impl.Get());
-
-  // Add 0; should then be able to remove 0.
-  errno_impl.Reset(kLastErrorSentinel);
-  EXPECT_EQ(0, fd_table.Add(std::unique_ptr<FDImpl>(new TestFDImpl())));
-  EXPECT_TRUE(fd_table.Remove(0));
-  EXPECT_EQ(kLastErrorSentinel, errno_impl.Get());  // No error.
-
-  // But shouldn't be able to remove 0.
-  errno_impl.Reset(kLastErrorSentinel);
-  EXPECT_EQ(nullptr, fd_table.Remove(0));
-  EXPECT_EQ(EBADF, errno_impl.Get());
-
-  // Nor 1.
-  errno_impl.Reset(kLastErrorSentinel);
-  EXPECT_EQ(nullptr, fd_table.Remove(1));
-  EXPECT_EQ(EBADF, errno_impl.Get());
-}
-
-TEST(FDTableTest, Full) {
-  const int kLastErrorSentinel = -12345;
-  test::MockErrnoImpl errno_impl(kLastErrorSentinel);
-  FDTable fd_table(&errno_impl, 3);
-
-  // Add 0, 1, 2.
-  EXPECT_EQ(0, fd_table.Add(std::unique_ptr<FDImpl>(new TestFDImpl())));
-  EXPECT_EQ(1, fd_table.Add(std::unique_ptr<FDImpl>(new TestFDImpl())));
-  EXPECT_EQ(2, fd_table.Add(std::unique_ptr<FDImpl>(new TestFDImpl())));
-  EXPECT_EQ(kLastErrorSentinel, errno_impl.Get());  // No error.
-
-  // Shouldn't be able to add another. Error should be EMFILE. (Note that this
-  // is EMFILE, which is too many open files (in the current process) and not
-  // ENFILE, which is too many open files in the system.
-  errno_impl.Reset(kLastErrorSentinel);
-  EXPECT_EQ(-1, fd_table.Add(std::unique_ptr<FDImpl>(new TestFDImpl())));
-  EXPECT_EQ(EMFILE, errno_impl.Get());
-
-  // Remove 0.
-  errno_impl.Reset(kLastErrorSentinel);
-  EXPECT_TRUE(fd_table.Remove(0));
-  EXPECT_EQ(kLastErrorSentinel, errno_impl.Get());  // No error.
-
-  // Now adding should be okay again.
-  errno_impl.Reset(kLastErrorSentinel);
-  EXPECT_EQ(0, fd_table.Add(std::unique_ptr<FDImpl>(new TestFDImpl())));
-  EXPECT_EQ(kLastErrorSentinel, errno_impl.Get());  // No error.
-}
-
-}  // namespace
-}  // namespace mojio