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qt-creator/tests/unit/unittest/clangquerygatherer-test.cpp
Marco Bubke c174eb378a Clang: Reduce database accesses 
If we prefetch data from the database to the caches we reduce the database
transaction calls which are quite expensive.

Change-Id: I617a0d886807402e0a94291a913a77f989970b55
Reviewed-by: Tim Jenssen <tim.jenssen@qt.io>
2019-08-27 11:53:32 +00:00

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/****************************************************************************
**
** Copyright (C) 2017 The Qt Company Ltd.
** Contact: https://www.qt.io/licensing/
**
** This file is part of Qt Creator.
**
** Commercial License Usage
** Licensees holding valid commercial Qt licenses may use this file in
** accordance with the commercial license agreement provided with the
** Software or, alternatively, in accordance with the terms contained in
** a written agreement between you and The Qt Company. For licensing terms
** and conditions see https://www.qt.io/terms-conditions. For further
** information use the contact form at https://www.qt.io/contact-us.
**
** GNU General Public License Usage
** Alternatively, this file may be used under the terms of the GNU
** General Public License version 3 as published by the Free Software
** Foundation with exceptions as appearing in the file LICENSE.GPL3-EXCEPT
** included in the packaging of this file. Please review the following
** information to ensure the GNU General Public License requirements will
** be met: https://www.gnu.org/licenses/gpl-3.0.html.
**
****************************************************************************/
#include "googletest.h"
#include "filesystem-utilities.h"
#include "sourcerangecontainer-matcher.h"
#include <filecontainerv2.h>
#include <filepathcaching.h>
#include <refactoringdatabaseinitializer.h>
#include <sqlitedatabase.h>
#include <clangquerygatherer.h>
#include <QDir>
namespace {
using testing::AllOf;
using testing::AtLeast;
using testing::AtMost;
using testing::Contains;
using testing::Each;
using testing::ElementsAre;
using testing::Eq;
using testing::Field;
using testing::Ge;
using testing::IsEmpty;
using testing::Le;
using testing::NiceMock;
using testing::Pair;
using testing::PrintToString;
using testing::SizeIs;
using testing::UnorderedElementsAre;
using testing::_;
using ClangBackEnd::FilePath;
using ClangBackEnd::SourceRangesContainer;
using ClangBackEnd::SourceRangesForQueryMessage;
using ClangBackEnd::V2::FileContainer;
MATCHER_P2(Contains, line, column,
std::string(negation ? "isn't " : "is ")
+ "(" + PrintToString(line)
+ ", " + PrintToString(column)
+ ")"
)
{
return arg.line == uint(line)
&& arg.column == uint(column);
}
class ClangQueryGatherer : public ::testing::Test
{
protected:
void SetUp() override;
protected:
Sqlite::Database database{":memory:", Sqlite::JournalMode::Memory};
ClangBackEnd::RefactoringDatabaseInitializer<Sqlite::Database> databaseInitializer{database};
ClangBackEnd::FilePathCaching filePathCache{database};
Utils::SmallString sourceContent{"#include \"query_simplefunction.h\"\nvoid f() {}"};
FileContainer source{{TESTDATA_DIR, "query_simplefunction.cpp"},
filePathCache.filePathId(FilePath{TESTDATA_DIR, "query_simplefunction.cpp"}),
sourceContent.clone(),
{"cc", "-I", TESTDATA_DIR}};
FileContainer source2{{TESTDATA_DIR, "query_simplefunction2.cpp"},
filePathCache.filePathId(FilePath{TESTDATA_DIR, "query_simplefunction2.cpp"}),
{},
{"cc", "-I", TESTDATA_DIR}};
FileContainer source3{{TESTDATA_DIR, "query_simplefunction3.cpp"},
filePathCache.filePathId(FilePath{TESTDATA_DIR, "query_simplefunction3.cpp"}),
{},
{"cc", "-I", TESTDATA_DIR}};
Utils::SmallString unsavedContent{"void f();"};
FileContainer unsaved{{TESTDATA_DIR, "query_simplefunction.h"},
filePathCache.filePathId(FilePath{TESTDATA_DIR, "query_simplefunction.h"}),
unsavedContent.clone(),
{}};
Utils::SmallString query{"functionDecl()"};
ClangBackEnd::ClangQueryGatherer gatherer{&filePathCache, {source.clone()}, {unsaved.clone()}, query.clone()};
ClangBackEnd::ClangQueryGatherer manyGatherer{&filePathCache,
{source3.clone(), source2.clone(), source.clone()},
{unsaved.clone()},
query.clone()};
};
TEST_F(ClangQueryGatherer, CreateSourceRanges)
{
auto sourceRangesAndDiagnostics = gatherer.createSourceRangesForSource(&filePathCache, source.clone(), {unsaved}, query.clone());
ASSERT_THAT(sourceRangesAndDiagnostics,
Field(&SourceRangesForQueryMessage::sourceRanges,
Field(&SourceRangesContainer::sourceRangeWithTextContainers,
Contains(IsSourceRangeWithText(2, 1, 2, 12, "void f() {}")))));
}
TEST_F(ClangQueryGatherer, CreateSourceRangessWithUnsavedContent)
{
auto sourceRangesAndDiagnostics = gatherer.createSourceRangesForSource(&filePathCache, source.clone(), {unsaved}, query.clone());
ASSERT_THAT(sourceRangesAndDiagnostics,
Field(&SourceRangesForQueryMessage::sourceRanges,
Field(&SourceRangesContainer::sourceRangeWithTextContainers,
Contains(IsSourceRangeWithText(1, 1, 1, 9, "void f();")))));
}
TEST_F(ClangQueryGatherer, CanCreateSourceRangesIfItHasSources)
{
ASSERT_TRUE(gatherer.canCreateSourceRanges());
}
TEST_F(ClangQueryGatherer, CanNotCreateSourceRangesIfItHasNoSources)
{
ClangBackEnd::ClangQueryGatherer empthyGatherer{&filePathCache, {}, {unsaved.clone()}, query.clone()};
ASSERT_FALSE(empthyGatherer.canCreateSourceRanges());
}
TEST_F(ClangQueryGatherer, CreateSourceRangesForNextSource)
{
auto sourceRangesAndDiagnostics = gatherer.createNextSourceRanges();
ASSERT_THAT(sourceRangesAndDiagnostics,
Field(&SourceRangesForQueryMessage::sourceRanges,
Field(&SourceRangesContainer::sourceRangeWithTextContainers,
Contains(IsSourceRangeWithText(1, 1, 1, 9, "void f();")))));
}
TEST_F(ClangQueryGatherer, CreateSourceRangesForNextSourcePopsSource)
{
manyGatherer.createNextSourceRanges();
ASSERT_THAT(manyGatherer.sources(), SizeIs(2));
}
TEST_F(ClangQueryGatherer, StartCreateSourceRangesForNextSource)
{
auto future = gatherer.startCreateNextSourceRangesMessage();
future.wait();
ASSERT_THAT(future.get(),
Field(&SourceRangesForQueryMessage::sourceRanges,
Field(&SourceRangesContainer::sourceRangeWithTextContainers,
Contains(IsSourceRangeWithText(1, 1, 1, 9, "void f();")))));
}
TEST_F(ClangQueryGatherer, StartCreateSourceRangesForNextSourcePopsSource)
{
manyGatherer.startCreateNextSourceRangesMessage();
ASSERT_THAT(manyGatherer.sources(), SizeIs(2));
}
TEST_F(ClangQueryGatherer, AfterStartCreateSourceRangesMessagesFutureCountIsTwos)
{
manyGatherer.startCreateNextSourceRangesMessages();
ASSERT_THAT(manyGatherer.sourceFutures(), SizeIs(2));
}
TEST_F(ClangQueryGatherer, AfterRestartCreateSourceRangesMessagesFutureCountIsTwos)
{
manyGatherer.startCreateNextSourceRangesMessages();
manyGatherer.startCreateNextSourceRangesMessages();
ASSERT_THAT(manyGatherer.sourceFutures(), SizeIs(2));
}
TEST_F(ClangQueryGatherer, AfterStartCreateSourceRangesMessagesGetCollected)
{
manyGatherer.startCreateNextSourceRangesMessages();
ASSERT_THAT(manyGatherer.allCurrentProcessedMessages(),
UnorderedElementsAre(
Field(&SourceRangesForQueryMessage::sourceRanges,
Field(&SourceRangesContainer::sourceRangeWithTextContainers,
UnorderedElementsAre(IsSourceRangeWithText(1, 1, 1, 9, "void f();"),
IsSourceRangeWithText(2, 1, 2, 12, "void f() {}")))),
Field(&SourceRangesForQueryMessage::sourceRanges,
Field(&SourceRangesContainer::sourceRangeWithTextContainers,
UnorderedElementsAre(
IsSourceRangeWithText(1, 1, 1, 13, "int header();"),
IsSourceRangeWithText(3, 1, 3, 15, "int function();"))))));
}
TEST_F(ClangQueryGatherer, GetFinishedMessages)
{
manyGatherer.startCreateNextSourceRangesMessages();
manyGatherer.waitForFinished();
auto messages = manyGatherer.finishedMessages();
ASSERT_THAT(messages,
AllOf(SizeIs(2),
UnorderedElementsAre(
Field(&SourceRangesForQueryMessage::sourceRanges,
Field(&SourceRangesContainer::sourceRangeWithTextContainers,
UnorderedElementsAre(
IsSourceRangeWithText(1, 1, 1, 9, "void f();"),
IsSourceRangeWithText(2, 1, 2, 12, "void f() {}")))),
Field(&SourceRangesForQueryMessage::sourceRanges,
Field(&SourceRangesContainer::sourceRangeWithTextContainers,
UnorderedElementsAre(
IsSourceRangeWithText(1, 1, 1, 13, "int header();"),
IsSourceRangeWithText(3, 1, 3, 15, "int function();")))))));
}
TEST_F(ClangQueryGatherer, GetFinishedMessagesAfterSecondPass)
{
manyGatherer.startCreateNextSourceRangesMessages();
manyGatherer.waitForFinished();
manyGatherer.finishedMessages();
manyGatherer.startCreateNextSourceRangesMessages();
manyGatherer.waitForFinished();
auto messages = manyGatherer.finishedMessages();
ASSERT_THAT(messages,
AllOf(SizeIs(1),
ElementsAre(
Field(&SourceRangesForQueryMessage::sourceRanges,
Field(&SourceRangesContainer::sourceRangeWithTextContainers,
UnorderedElementsAre(
IsSourceRangeWithText(3, 1, 3, 15, "int function();")))))));
}
TEST_F(ClangQueryGatherer, FilterDuplicates)
{
manyGatherer.setProcessingSlotCount(3);
manyGatherer.startCreateNextSourceRangesMessages();
manyGatherer.waitForFinished();
auto messages = manyGatherer.finishedMessages();
ASSERT_THAT(messages,
AllOf(SizeIs(3),
UnorderedElementsAre(
Field(&SourceRangesForQueryMessage::sourceRanges,
Field(&SourceRangesContainer::sourceRangeWithTextContainers,
UnorderedElementsAre(
IsSourceRangeWithText(1, 1, 1, 9, "void f();"),
IsSourceRangeWithText(2, 1, 2, 12, "void f() {}")))),
Field(&SourceRangesForQueryMessage::sourceRanges,
Field(&SourceRangesContainer::sourceRangeWithTextContainers,
UnorderedElementsAre(
IsSourceRangeWithText(1, 1, 1, 13, "int header();"),
IsSourceRangeWithText(3, 1, 3, 15, "int function();")))),
Field(&SourceRangesForQueryMessage::sourceRanges,
Field(&SourceRangesContainer::sourceRangeWithTextContainers,
UnorderedElementsAre(
IsSourceRangeWithText(3, 1, 3, 15, "int function();")))))));
}
TEST_F(ClangQueryGatherer, AfterGetFinishedMessagesFuturesAreReduced)
{
manyGatherer.startCreateNextSourceRangesMessages();
manyGatherer.waitForFinished();
manyGatherer.finishedMessages();
ASSERT_THAT(manyGatherer.sourceFutures(), SizeIs(0));
}
TEST_F(ClangQueryGatherer, SourceFutureIsOneInTheSecondRun)
{
manyGatherer.startCreateNextSourceRangesMessages();
manyGatherer.waitForFinished();
manyGatherer.finishedMessages();
manyGatherer.startCreateNextSourceRangesMessages();
ASSERT_THAT(manyGatherer.sourceFutures(), SizeIs(1));
}
TEST_F(ClangQueryGatherer, GetOneMessageInTheSecondRun)
{
manyGatherer.startCreateNextSourceRangesMessages();
manyGatherer.waitForFinished();
manyGatherer.finishedMessages();
manyGatherer.startCreateNextSourceRangesMessages();
manyGatherer.waitForFinished();
auto messages = manyGatherer.finishedMessages();
ASSERT_THAT(messages, SizeIs(1));
}
TEST_F(ClangQueryGatherer, IsNotFinishedIfSourcesExists)
{
manyGatherer.startCreateNextSourceRangesMessages();
manyGatherer.waitForFinished();
manyGatherer.finishedMessages();
bool isFinished = manyGatherer.isFinished();
ASSERT_FALSE(isFinished);
}
TEST_F(ClangQueryGatherer, IsNotFinishedIfSourceFuturesExists)
{
manyGatherer.startCreateNextSourceRangesMessages();
manyGatherer.waitForFinished();
manyGatherer.finishedMessages();
manyGatherer.startCreateNextSourceRangesMessages();
bool isFinished = manyGatherer.isFinished();
ASSERT_FALSE(isFinished);
}
TEST_F(ClangQueryGatherer, IsFinishedIfNoSourceAndSourceFuturesExists)
{
manyGatherer.startCreateNextSourceRangesMessages();
manyGatherer.waitForFinished();
manyGatherer.finishedMessages();
manyGatherer.startCreateNextSourceRangesMessages();
manyGatherer.waitForFinished();
manyGatherer.finishedMessages();
bool isFinished = manyGatherer.isFinished();
ASSERT_TRUE(isFinished);
}
void ClangQueryGatherer::SetUp()
{
manyGatherer.setProcessingSlotCount(2);
}
}
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