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llvm-project/lldb/unittests/Interpreter/TestCompletion.cpp

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//===-- TestCompletion.cpp --------------------------------------*- C++ -*-===//
//
// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
// See https://llvm.org/LICENSE.txt for license information.
// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
//
//===----------------------------------------------------------------------===//
#include "lldb/Host/FileSystem.h"
#include "lldb/Interpreter/CommandCompletions.h"
#include "lldb/Utility/StringList.h"
#include "lldb/Utility/TildeExpressionResolver.h"
#include "gmock/gmock.h"
#include "gtest/gtest.h"
#include "TestingSupport/MockTildeExpressionResolver.h"
#include "llvm/ADT/SmallString.h"
#include "llvm/Support/FileSystem.h"
#include "llvm/Support/Path.h"
#include "llvm/Support/raw_ostream.h"
namespace fs = llvm::sys::fs;
namespace path = llvm::sys::path;
using namespace llvm;
using namespace lldb_private;
#define ASSERT_NO_ERROR(x) \
if (std::error_code ASSERT_NO_ERROR_ec = x) { \
SmallString<128> MessageStorage; \
raw_svector_ostream Message(MessageStorage); \
Message << #x ": did not return errc::success.\n" \
<< "error number: " << ASSERT_NO_ERROR_ec.value() << "\n" \
<< "error message: " << ASSERT_NO_ERROR_ec.message() << "\n"; \
GTEST_FATAL_FAILURE_(MessageStorage.c_str()); \
} else { \
}
namespace {
class CompletionTest : public testing::Test {
protected:
/// Unique temporary directory in which all created filesystem entities must
/// be placed. It is removed at the end of the test suite.
SmallString<128> BaseDir;
/// The working directory that we got when starting the test. Every test
/// should chdir into this directory first because some tests maybe chdir
/// into another one during their run.
static SmallString<128> OriginalWorkingDir;
SmallString<128> DirFoo;
SmallString<128> DirFooA;
SmallString<128> DirFooB;
SmallString<128> DirFooC;
SmallString<128> DirBar;
SmallString<128> DirBaz;
SmallString<128> DirTestFolder;
SmallString<128> DirNested;
SmallString<128> FileAA;
SmallString<128> FileAB;
SmallString<128> FileAC;
SmallString<128> FileFoo;
SmallString<128> FileBar;
SmallString<128> FileBaz;
void SetUp() override {
FileSystem::Initialize();
// chdir back into the original working dir this test binary started with.
// A previous test may have have changed the working dir.
ASSERT_NO_ERROR(fs::set_current_path(OriginalWorkingDir));
// Get the name of the current test. To prevent that by chance two tests
// get the same temporary directory if createUniqueDirectory fails.
auto test_info = ::testing::UnitTest::GetInstance()->current_test_info();
ASSERT_TRUE(test_info != nullptr);
std::string name = test_info->name();
ASSERT_NO_ERROR(fs::createUniqueDirectory("FsCompletion-" + name, BaseDir));
const char *DirNames[] = {"foo", "fooa", "foob", "fooc",
"bar", "baz", "test_folder", "foo/nested"};
const char *FileNames[] = {"aa1234.tmp", "ab1234.tmp", "ac1234.tmp",
"foo1234.tmp", "bar1234.tmp", "baz1234.tmp"};
SmallString<128> *Dirs[] = {&DirFoo, &DirFooA, &DirFooB, &DirFooC,
&DirBar, &DirBaz, &DirTestFolder, &DirNested};
for (auto Dir : llvm::zip(DirNames, Dirs)) {
auto &Path = *std::get<1>(Dir);
Path = BaseDir;
path::append(Path, std::get<0>(Dir));
ASSERT_NO_ERROR(fs::create_directories(Path));
}
SmallString<128> *Files[] = {&FileAA, &FileAB, &FileAC,
&FileFoo, &FileBar, &FileBaz};
for (auto File : llvm::zip(FileNames, Files)) {
auto &Path = *std::get<1>(File);
Path = BaseDir;
path::append(Path, std::get<0>(File));
int FD;
ASSERT_NO_ERROR(fs::createUniqueFile(Path, FD, Path));
::close(FD);
}
}
static void SetUpTestCase() {
ASSERT_NO_ERROR(fs::current_path(OriginalWorkingDir));
}
void TearDown() override {
ASSERT_NO_ERROR(fs::remove_directories(BaseDir));
FileSystem::Terminate();
}
static bool HasEquivalentFile(const Twine &Path, const StringList &Paths) {
for (size_t I = 0; I < Paths.GetSize(); ++I) {
if (fs::equivalent(Path, Paths[I]))
return true;
}
return false;
}
void DoDirCompletions(const Twine &Prefix,
StandardTildeExpressionResolver &Resolver,
StringList &Results) {
// When a partial name matches, it returns all matches. If it matches both
// a full name AND some partial names, it returns all of them.
uint32_t Count =
CommandCompletions::DiskDirectories(Prefix + "foo", Results, Resolver);
ASSERT_EQ(4u, Count);
ASSERT_EQ(Count, Results.GetSize());
EXPECT_TRUE(HasEquivalentFile(DirFoo, Results));
EXPECT_TRUE(HasEquivalentFile(DirFooA, Results));
EXPECT_TRUE(HasEquivalentFile(DirFooB, Results));
EXPECT_TRUE(HasEquivalentFile(DirFooC, Results));
// If it matches only partial names, it still works as expected.
Count = CommandCompletions::DiskDirectories(Twine(Prefix) + "b", Results,
Resolver);
ASSERT_EQ(2u, Count);
ASSERT_EQ(Count, Results.GetSize());
EXPECT_TRUE(HasEquivalentFile(DirBar, Results));
EXPECT_TRUE(HasEquivalentFile(DirBaz, Results));
}
};
SmallString<128> CompletionTest::OriginalWorkingDir;
} // namespace
static std::vector<std::string> toVector(const StringList &SL) {
std::vector<std::string> Result;
for (size_t Idx = 0; Idx < SL.GetSize(); ++Idx)
Result.push_back(SL[Idx]);
return Result;
}
using testing::UnorderedElementsAre;
TEST_F(CompletionTest, DirCompletionAbsolute) {
// All calls to DiskDirectories() return only directories, even when
// there are files which also match. The tests below all check this
// by asserting an exact result count, and verifying against known
// folders.
std::string Prefixes[] = {(Twine(BaseDir) + "/").str(), ""};
StandardTildeExpressionResolver Resolver;
StringList Results;
// When a directory is specified that doesn't end in a slash, it searches
// for that directory, not items under it.
// Sanity check that the path we complete on exists and isn't too long.
size_t Count = CommandCompletions::DiskDirectories(Twine(BaseDir) + "/fooa",
Results, Resolver);
ASSERT_EQ(1u, Count);
ASSERT_EQ(Count, Results.GetSize());
EXPECT_TRUE(HasEquivalentFile(DirFooA, Results));
Count = CommandCompletions::DiskDirectories(Twine(BaseDir) + "/.", Results,
Resolver);
ASSERT_EQ(0u, Count);
ASSERT_EQ(Count, Results.GetSize());
// When the same directory ends with a slash, it finds all children.
Count = CommandCompletions::DiskDirectories(Prefixes[0], Results, Resolver);
ASSERT_EQ(7u, Count);
ASSERT_EQ(Count, Results.GetSize());
EXPECT_TRUE(HasEquivalentFile(DirFoo, Results));
EXPECT_TRUE(HasEquivalentFile(DirFooA, Results));
EXPECT_TRUE(HasEquivalentFile(DirFooB, Results));
EXPECT_TRUE(HasEquivalentFile(DirFooC, Results));
EXPECT_TRUE(HasEquivalentFile(DirBar, Results));
EXPECT_TRUE(HasEquivalentFile(DirBaz, Results));
EXPECT_TRUE(HasEquivalentFile(DirTestFolder, Results));
DoDirCompletions(Twine(BaseDir) + "/", Resolver, Results);
llvm::sys::fs::set_current_path(BaseDir);
DoDirCompletions("", Resolver, Results);
}
TEST_F(CompletionTest, FileCompletionAbsolute) {
// All calls to DiskFiles() return both files and directories The tests below
// all check this by asserting an exact result count, and verifying against
// known folders.
StandardTildeExpressionResolver Resolver;
StringList Results;
// When an item is specified that doesn't end in a slash but exactly matches
// one item, it returns that item.
size_t Count = CommandCompletions::DiskFiles(Twine(BaseDir) + "/fooa",
Results, Resolver);
ASSERT_EQ(1u, Count);
ASSERT_EQ(Count, Results.GetSize());
EXPECT_TRUE(HasEquivalentFile(DirFooA, Results));
// The previous check verified a directory match. But it should work for
// files too.
Count =
CommandCompletions::DiskFiles(Twine(BaseDir) + "/aa", Results, Resolver);
ASSERT_EQ(1u, Count);
ASSERT_EQ(Count, Results.GetSize());
EXPECT_TRUE(HasEquivalentFile(FileAA, Results));
// When it ends with a slash, it should find all files and directories.
Count =
CommandCompletions::DiskFiles(Twine(BaseDir) + "/", Results, Resolver);
ASSERT_EQ(13u, Count);
ASSERT_EQ(Count, Results.GetSize());
EXPECT_TRUE(HasEquivalentFile(DirFoo, Results));
EXPECT_TRUE(HasEquivalentFile(DirFooA, Results));
EXPECT_TRUE(HasEquivalentFile(DirFooB, Results));
EXPECT_TRUE(HasEquivalentFile(DirFooC, Results));
EXPECT_TRUE(HasEquivalentFile(DirBar, Results));
EXPECT_TRUE(HasEquivalentFile(DirBaz, Results));
EXPECT_TRUE(HasEquivalentFile(DirTestFolder, Results));
EXPECT_TRUE(HasEquivalentFile(FileAA, Results));
EXPECT_TRUE(HasEquivalentFile(FileAB, Results));
EXPECT_TRUE(HasEquivalentFile(FileAC, Results));
EXPECT_TRUE(HasEquivalentFile(FileFoo, Results));
EXPECT_TRUE(HasEquivalentFile(FileBar, Results));
EXPECT_TRUE(HasEquivalentFile(FileBaz, Results));
// When a partial name matches, it returns all file & directory matches.
Count =
CommandCompletions::DiskFiles(Twine(BaseDir) + "/foo", Results, Resolver);
ASSERT_EQ(5u, Count);
ASSERT_EQ(Count, Results.GetSize());
EXPECT_TRUE(HasEquivalentFile(DirFoo, Results));
EXPECT_TRUE(HasEquivalentFile(DirFooA, Results));
EXPECT_TRUE(HasEquivalentFile(DirFooB, Results));
EXPECT_TRUE(HasEquivalentFile(DirFooC, Results));
EXPECT_TRUE(HasEquivalentFile(FileFoo, Results));
}
TEST_F(CompletionTest, DirCompletionUsername) {
MockTildeExpressionResolver Resolver("James", BaseDir);
Resolver.AddKnownUser("Kirk", DirFooB);
Resolver.AddKnownUser("Lars", DirFooC);
Resolver.AddKnownUser("Jason", DirFoo);
Resolver.AddKnownUser("Larry", DirFooA);
std::string sep = path::get_separator();
// Just resolving current user's home directory by itself should return the
// directory.
StringList Results;
size_t Count = CommandCompletions::DiskDirectories("~", Results, Resolver);
EXPECT_EQ(Count, Results.GetSize());
EXPECT_THAT(toVector(Results), UnorderedElementsAre("~" + sep));
// With a slash appended, it should return all items in the directory.
Count = CommandCompletions::DiskDirectories("~/", Results, Resolver);
EXPECT_THAT(toVector(Results),
UnorderedElementsAre(
"~/foo" + sep, "~/fooa" + sep, "~/foob" + sep, "~/fooc" + sep,
"~/bar" + sep, "~/baz" + sep, "~/test_folder" + sep));
EXPECT_EQ(Count, Results.GetSize());
// Check that we can complete directories in nested paths
Count = CommandCompletions::DiskDirectories("~/foo/", Results, Resolver);
EXPECT_EQ(Count, Results.GetSize());
EXPECT_THAT(toVector(Results), UnorderedElementsAre("~/foo/nested" + sep));
Count = CommandCompletions::DiskDirectories("~/foo/nes", Results, Resolver);
EXPECT_EQ(Count, Results.GetSize());
EXPECT_THAT(toVector(Results), UnorderedElementsAre("~/foo/nested" + sep));
// With ~username syntax it should return one match if there is an exact
// match. It shouldn't translate to the actual directory, it should keep the
// form the user typed.
Count = CommandCompletions::DiskDirectories("~Lars", Results, Resolver);
EXPECT_EQ(Count, Results.GetSize());
EXPECT_THAT(toVector(Results), UnorderedElementsAre("~Lars" + sep));
// But with a username that is not found, no results are returned.
Count = CommandCompletions::DiskDirectories("~Dave", Results, Resolver);
EXPECT_EQ(Count, Results.GetSize());
EXPECT_THAT(toVector(Results), UnorderedElementsAre());
// And if there are multiple matches, it should return all of them.
Count = CommandCompletions::DiskDirectories("~La", Results, Resolver);
EXPECT_EQ(Count, Results.GetSize());
EXPECT_THAT(toVector(Results),
UnorderedElementsAre("~Lars" + sep, "~Larry" + sep));
}
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