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author | 2017-02-15 13:07:52 +0000 | |
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committer | 2017-02-15 14:47:42 +0000 | |
commit | d7d4def945b38133c43e3df3ea7c450b229d2bfb (patch) | |
tree | b370d2c91c525a692e4eee01e2fbe6331e7e1df2 /src/test/native/windows_file_operations_test.cc | |
parent | 2a0bb37397e1354eaf06b7697913f71443332175 (diff) |
Bazel client, JNI, Windows: impl. CreateJunction
Implement a CreateJunction function in the Windows
JNI library. Also move a bit of code from
file_windows to the JNI library, where it is
(also) needed.
This implementation is an improved version of
`blaze_util::SymlinkDirectories` in
blaze_util_windows: this version handles Windows
paths as `name` and `target`, and performs more
validation (e.g. on the length of `target`), plus
has more comments explaining the logic. In a
subsequent change I'll start using this new
function in blaze_util_windows.
This method will also be helpful in tests: we will
no longer have to shell out to mklink.
See https://github.com/bazelbuild/bazel/issues/2107
--
Change-Id: I7e9b085fdc2ba47be83da5319bded02bd323e71b
Reviewed-on: https://cr.bazel.build/8892
PiperOrigin-RevId: 147585207
MOS_MIGRATED_REVID=147585207
Diffstat (limited to 'src/test/native/windows_file_operations_test.cc')
-rw-r--r-- | src/test/native/windows_file_operations_test.cc | 111 |
1 files changed, 111 insertions, 0 deletions
diff --git a/src/test/native/windows_file_operations_test.cc b/src/test/native/windows_file_operations_test.cc new file mode 100644 index 0000000000..f3258a9a86 --- /dev/null +++ b/src/test/native/windows_file_operations_test.cc @@ -0,0 +1,111 @@ +// Copyright 2017 The Bazel Authors. All rights reserved. +// +// 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 <stdlib.h> +#include <string.h> +#include <windows.h> + +#include <memory> // unique_ptr +#include <sstream> +#include <string> + +#include "gtest/gtest.h" +#include "src/main/native/windows_file_operations.h" +#include "src/test/cpp/util/windows_test_util.h" + +#if !defined(COMPILER_MSVC) && !defined(__CYGWIN__) +#error("This test should only be run on Windows") +#endif // !defined(COMPILER_MSVC) && !defined(__CYGWIN__) + +namespace windows_util { + +using blaze_util::DeleteAllUnder; +using blaze_util::GetTestTmpDirW; +using std::string; +using std::unique_ptr; +using std::wstring; + +static const wstring kUncPrefix = wstring(L"\\\\?\\"); + +class WindowsFileOperationsTest : public ::testing::Test { + public: + void TearDown() override { DeleteAllUnder(GetTestTmpDirW()); } +}; + +TEST_F(WindowsFileOperationsTest, TestCreateJunction) { + wstring tmp(kUncPrefix + GetTestTmpDirW()); + wstring target(tmp + L"\\junc_target"); + EXPECT_TRUE(::CreateDirectoryW(target.c_str(), NULL)); + wstring file1(target + L"\\foo"); + EXPECT_TRUE(blaze_util::CreateDummyFile(file1)); + + EXPECT_EQ(IS_JUNCTION_NO, IsJunctionOrDirectorySymlink(target.c_str())); + EXPECT_NE(INVALID_FILE_ATTRIBUTES, ::GetFileAttributesW(file1.c_str())); + + wstring name(tmp + L"\\junc_name"); + + // Create junctions from all combinations of UNC-prefixed or non-prefixed name + // and target paths. + ASSERT_EQ("", CreateJunction(name + L"1", target)); + ASSERT_EQ("", CreateJunction(name + L"2", target.substr(4))); + ASSERT_EQ("", CreateJunction(name.substr(4) + L"3", target)); + ASSERT_EQ("", CreateJunction(name.substr(4) + L"4", target.substr(4))); + + // Assert creation of the junctions. + ASSERT_EQ(IS_JUNCTION_YES, + IsJunctionOrDirectorySymlink((name + L"1").c_str())); + ASSERT_EQ(IS_JUNCTION_YES, + IsJunctionOrDirectorySymlink((name + L"2").c_str())); + ASSERT_EQ(IS_JUNCTION_YES, + IsJunctionOrDirectorySymlink((name + L"3").c_str())); + ASSERT_EQ(IS_JUNCTION_YES, + IsJunctionOrDirectorySymlink((name + L"4").c_str())); + + // Assert that the file is visible under all junctions. + ASSERT_NE(INVALID_FILE_ATTRIBUTES, + ::GetFileAttributesW((name + L"1\\foo").c_str())); + ASSERT_NE(INVALID_FILE_ATTRIBUTES, + ::GetFileAttributesW((name + L"2\\foo").c_str())); + ASSERT_NE(INVALID_FILE_ATTRIBUTES, + ::GetFileAttributesW((name + L"3\\foo").c_str())); + ASSERT_NE(INVALID_FILE_ATTRIBUTES, + ::GetFileAttributesW((name + L"4\\foo").c_str())); + + // Assert that no other file exists under the junctions. + wstring file2(target + L"\\bar"); + ASSERT_EQ(INVALID_FILE_ATTRIBUTES, ::GetFileAttributesW(file2.c_str())); + ASSERT_EQ(INVALID_FILE_ATTRIBUTES, + ::GetFileAttributesW((name + L"1\\bar").c_str())); + ASSERT_EQ(INVALID_FILE_ATTRIBUTES, + ::GetFileAttributesW((name + L"2\\bar").c_str())); + ASSERT_EQ(INVALID_FILE_ATTRIBUTES, + ::GetFileAttributesW((name + L"3\\bar").c_str())); + ASSERT_EQ(INVALID_FILE_ATTRIBUTES, + ::GetFileAttributesW((name + L"4\\bar").c_str())); + + // Create a new file. + EXPECT_TRUE(blaze_util::CreateDummyFile(file2)); + EXPECT_NE(INVALID_FILE_ATTRIBUTES, ::GetFileAttributesW(file2.c_str())); + + // Assert that the newly created file appears under all junctions. + ASSERT_NE(INVALID_FILE_ATTRIBUTES, + ::GetFileAttributesW((name + L"1\\bar").c_str())); + ASSERT_NE(INVALID_FILE_ATTRIBUTES, + ::GetFileAttributesW((name + L"2\\bar").c_str())); + ASSERT_NE(INVALID_FILE_ATTRIBUTES, + ::GetFileAttributesW((name + L"3\\bar").c_str())); + ASSERT_NE(INVALID_FILE_ATTRIBUTES, + ::GetFileAttributesW((name + L"4\\bar").c_str())); +} + +} // namespace windows_util |