ClangTools: Move over a test from unittest

Change-Id: Id61a0bdb8e46ead4de8ad0298e62afb7b9fbcfb4
Reviewed-by: Christian Stenger <christian.stenger@qt.io>

21 files changed, 407 insertions, 408 deletions

diff --git a/src/plugins/clangtools/CMakeLists.txt b/src/plugins/clangtools/CMakeLists.txt
index 51bccb10233..cdb6f279214 100644
--- a/src/plugins/clangtools/CMakeLists.txt
+++ b/src/plugins/clangtools/CMakeLists.txt
@@ -51,4 +51,5 @@ extend_qtc_plugin(ClangTools
     clangtoolspreconfiguredsessiontests.cpp clangtoolspreconfiguredsessiontests.h
     clangtoolsunittests.cpp clangtoolsunittests.h
     clangtoolsunittests.qrc
+    readexporteddiagnosticstest.cpp readexporteddiagnosticstest.h
 )
diff --git a/src/plugins/clangtools/clangtools.qbs b/src/plugins/clangtools/clangtools.qbs
index c3683ee17f7..01d680e537c 100644
--- a/src/plugins/clangtools/clangtools.qbs
+++ b/src/plugins/clangtools/clangtools.qbs
@@ -91,6 +91,8 @@ QtcPlugin {
             "clangtoolsunittests.cpp",
             "clangtoolsunittests.h",
             "clangtoolsunittests.qrc",
+            "readexporteddiagnosticstest.cpp",
+            "readexporteddiagnosticstest.h",
         ]
     }
 
diff --git a/src/plugins/clangtools/clangtoolsplugin.cpp b/src/plugins/clangtools/clangtoolsplugin.cpp
index bcd759a23ba..615e7e59d3e 100644
--- a/src/plugins/clangtools/clangtoolsplugin.cpp
+++ b/src/plugins/clangtools/clangtoolsplugin.cpp
@@ -34,6 +34,7 @@
 #include "settingswidget.h"
 
 #ifdef WITH_TESTS
+#include "readexporteddiagnosticstest.h"
 #include "clangtoolspreconfiguredsessiontests.h"
 #include "clangtoolsunittests.h"
 #endif
@@ -193,6 +194,7 @@ QVector<QObject *> ClangToolsPlugin::createTestObjects() const
 #ifdef WITH_TESTS
     tests << new PreconfiguredSessionTests;
     tests << new ClangToolsUnitTests;
+    tests << new ReadExportedDiagnosticsTest;
 #endif
     return tests;
 }
diff --git a/src/plugins/clangtools/clangtoolsunittests.qrc b/src/plugins/clangtools/clangtoolsunittests.qrc
index 598de3e3671..54bb416eab5 100644
--- a/src/plugins/clangtools/clangtoolsunittests.qrc
+++ b/src/plugins/clangtools/clangtoolsunittests.qrc
@@ -22,5 +22,17 @@
         <file>unit-tests/clangtidy_clazy/clangtidy_clazy.pro</file>
         <file>unit-tests/clangtidy_clazy/clazy_example.cpp</file>
         <file>unit-tests/clangtidy_clazy/tidy_example.cpp</file>
+        <file>unit-tests/exported-diagnostics/clang-analyzer.dividezero.cpp</file>
+        <file>unit-tests/exported-diagnostics/clang-analyzer.dividezero.yaml</file>
+        <file>unit-tests/exported-diagnostics/clang-analyzer.dividezero_win.yaml</file>
+        <file>unit-tests/exported-diagnostics/clazy.qgetenv.cpp</file>
+        <file>unit-tests/exported-diagnostics/clazy.qgetenv.yaml</file>
+        <file>unit-tests/exported-diagnostics/clazy.qgetenv_win.yaml</file>
+        <file>unit-tests/exported-diagnostics/CMakeLists.txt</file>
+        <file>unit-tests/exported-diagnostics/empty.yaml</file>
+        <file>unit-tests/exported-diagnostics/main.cpp</file>
+        <file>unit-tests/exported-diagnostics/tidy.modernize-use-nullptr.cpp</file>
+        <file>unit-tests/exported-diagnostics/tidy.modernize-use-nullptr.yaml</file>
+        <file>unit-tests/exported-diagnostics/tidy.modernize-use-nullptr_win.yaml</file>
     </qresource>
 </RCC>
diff --git a/src/plugins/clangtools/readexporteddiagnosticstest.cpp b/src/plugins/clangtools/readexporteddiagnosticstest.cpp
new file mode 100644
index 00000000000..6bd9eb5a116
--- /dev/null
+++ b/src/plugins/clangtools/readexporteddiagnosticstest.cpp
@@ -0,0 +1,314 @@
+/****************************************************************************
+**
+** Copyright (C) 2022 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 "readexporteddiagnosticstest.h"
+
+#include "clangtoolslogfilereader.h"
+
+#include <cppeditor/cpptoolstestcase.h>
+#include <utils/fileutils.h>
+#include <utils/hostosinfo.h>
+#include <utils/qtcassert.h>
+
+#include <QtTest>
+
+using namespace CppEditor::Tests;
+using namespace Debugger;
+using namespace Utils;
+
+namespace ClangTools::Internal {
+
+const char asciiWord[] = "FOO";
+const char asciiMultiLine[] = "FOO\nBAR";
+const char asciiMultiLine_dos[] = "FOO\r\nBAR";
+const char nonAsciiMultiLine[] = "\xc3\xbc" "\n"
+                                 "\xe4\xba\x8c" "\n"
+                                 "\xf0\x90\x8c\x82" "X";
+
+ReadExportedDiagnosticsTest::ReadExportedDiagnosticsTest()
+    : m_baseDir(new TemporaryCopiedDir(":/clangtools/unit-tests/exported-diagnostics")) {}
+
+ReadExportedDiagnosticsTest::~ReadExportedDiagnosticsTest() { delete m_baseDir; }
+
+void ReadExportedDiagnosticsTest::initTestCase() { QVERIFY(m_baseDir->isValid()); }
+void ReadExportedDiagnosticsTest::init() { m_message.clear(); }
+
+void ReadExportedDiagnosticsTest::testNonExistingFile()
+{
+    const Diagnostics diags = readExportedDiagnostics("nonExistingFile.yaml", {}, &m_message);
+    QVERIFY(diags.isEmpty());
+    QVERIFY(!m_message.isEmpty());
+}
+
+void ReadExportedDiagnosticsTest::testEmptyFile()
+{
+    const Diagnostics diags = readExportedDiagnostics(filePath("empty.yaml"), {}, &m_message);
+    QVERIFY(diags.isEmpty());
+    QVERIFY2(m_message.isEmpty(), qPrintable(m_message));
+}
+
+void ReadExportedDiagnosticsTest::testUnexpectedFileContents()
+{
+    const Diagnostics diags = readExportedDiagnostics(filePath("tidy.modernize-use-nullptr.cpp"),
+                                                      {}, &m_message);
+    QVERIFY(!m_message.isEmpty());
+    QVERIFY(diags.isEmpty());
+}
+
+static QString appendYamlSuffix(const char *filePathFragment)
+{
+    const QString yamlSuffix = QLatin1String(Utils::HostOsInfo::isWindowsHost()
+                                             ? "_win.yaml" : ".yaml");
+    return filePathFragment + yamlSuffix;
+}
+
+void ReadExportedDiagnosticsTest::testTidy()
+{
+    const FilePath sourceFile = filePath("tidy.modernize-use-nullptr.cpp");
+    const QString exportedFile = createFile(
+                filePath(appendYamlSuffix("tidy.modernize-use-nullptr")).toString(),
+                sourceFile.toString());
+    Diagnostic expectedDiag;
+    expectedDiag.name = "modernize-use-nullptr";
+    expectedDiag.location = {sourceFile, 2, 25};
+    expectedDiag.description = "use nullptr [modernize-use-nullptr]";
+    expectedDiag.type = "warning";
+    expectedDiag.hasFixits = true;
+    expectedDiag.explainingSteps = {
+        ExplainingStep{"nullptr",
+                       expectedDiag.location,
+                       {expectedDiag.location, {sourceFile, 2, 26}},
+                       true}};
+    const Diagnostics diags = readExportedDiagnostics(Utils::FilePath::fromString(exportedFile),
+                                                      {}, &m_message);
+
+    QVERIFY2(m_message.isEmpty(), qPrintable(m_message));
+    QCOMPARE(diags, {expectedDiag});
+}
+
+void ReadExportedDiagnosticsTest::testAcceptDiagsFromFilePaths_None()
+{
+    const QString sourceFile = filePath("tidy.modernize-use-nullptr.cpp").toString();
+    const QString exportedFile = createFile(filePath("tidy.modernize-use-nullptr.yaml").toString(),
+                                            sourceFile);
+    const auto acceptNone = [](const Utils::FilePath &) { return false; };
+    const Diagnostics diags = readExportedDiagnostics(FilePath::fromString(exportedFile),
+                                                      acceptNone, &m_message);
+    QVERIFY2(m_message.isEmpty(), qPrintable(m_message));
+    QVERIFY(diags.isEmpty());
+}
+
+// Diagnostics from clang (static) analyzer passed through via clang-tidy
+void ReadExportedDiagnosticsTest::testTidy_ClangAnalyzer()
+{
+    const FilePath sourceFile = filePath("clang-analyzer.dividezero.cpp");
+    const QString exportedFile = createFile(
+                filePath(appendYamlSuffix("clang-analyzer.dividezero")).toString(),
+                sourceFile.toString());
+    Diagnostic expectedDiag;
+    expectedDiag.name = "clang-analyzer-core.DivideZero";
+    expectedDiag.location = {sourceFile, 4, 15};
+    expectedDiag.description = "Division by zero [clang-analyzer-core.DivideZero]";
+    expectedDiag.type = "warning";
+    expectedDiag.hasFixits = false;
+    expectedDiag.explainingSteps = {
+        ExplainingStep{"Assuming 'z' is equal to 0",
+                       {sourceFile, 3, 7},
+                       {},
+                       false,
+        },
+        ExplainingStep{"Taking true branch",
+                       {sourceFile, 3, 3},
+                       {},
+                       false,
+        },
+        ExplainingStep{"Division by zero",
+                       {sourceFile, 4, 15},
+                       {},
+                       false,
+        },
+    };
+    const Diagnostics diags = readExportedDiagnostics(Utils::FilePath::fromString(exportedFile),
+                                                      {}, &m_message);
+    QVERIFY2(m_message.isEmpty(), qPrintable(m_message));
+    QCOMPARE(diags, {expectedDiag});
+}
+
+void ReadExportedDiagnosticsTest::testClazy()
+{
+    const FilePath sourceFile = filePath("clazy.qgetenv.cpp");
+    const QString exportedFile = createFile(filePath(appendYamlSuffix("clazy.qgetenv")).toString(),
+                                            sourceFile.toString());
+    Diagnostic expectedDiag;
+    expectedDiag.name = "clazy-qgetenv";
+    expectedDiag.location = {sourceFile, 7, 5};
+    expectedDiag.description = "qgetenv().isEmpty() allocates. Use qEnvironmentVariableIsEmpty() instead [clazy-qgetenv]";
+    expectedDiag.type = "warning";
+    expectedDiag.hasFixits = true;
+    expectedDiag.explainingSteps = {
+        ExplainingStep{"qEnvironmentVariableIsEmpty",
+                       expectedDiag.location,
+                       {expectedDiag.location, {sourceFile, 7, 12}},
+                       true
+        },
+        ExplainingStep{")",
+                       {sourceFile, 7, 18},
+                       {{sourceFile, 7, 18}, {sourceFile, 7, 29}},
+                       true},
+    };
+    const Diagnostics diags = readExportedDiagnostics(Utils::FilePath::fromString(exportedFile),
+                                                      {}, &m_message);
+    QVERIFY2(m_message.isEmpty(), qPrintable(m_message));
+    QCOMPARE(diags, {expectedDiag});
+}
+
+void ReadExportedDiagnosticsTest::testOffsetInvalidText()
+{
+    QVERIFY(!byteOffsetInUtf8TextToLineColumn(nullptr, 0));
+}
+
+void ReadExportedDiagnosticsTest::testOffsetInvalidOffset_EmptyInput()
+{
+    QVERIFY(!byteOffsetInUtf8TextToLineColumn("", 0));
+}
+
+void ReadExportedDiagnosticsTest::testOffsetInvalidOffset_Before()
+{
+    QVERIFY(!byteOffsetInUtf8TextToLineColumn(asciiWord, -1));
+}
+
+void ReadExportedDiagnosticsTest::testOffsetInvalidOffset_After()
+{
+    QVERIFY(!byteOffsetInUtf8TextToLineColumn(asciiWord, 3));
+}
+
+void ReadExportedDiagnosticsTest::testOffsetInvalidOffset_NotFirstByteOfMultiByte()
+{
+    QVERIFY(!byteOffsetInUtf8TextToLineColumn(nonAsciiMultiLine, 1));
+}
+
+void ReadExportedDiagnosticsTest::testOffsetStartOfFirstLine()
+{
+    const auto info = byteOffsetInUtf8TextToLineColumn(asciiWord, 0);
+    QVERIFY(info);
+    QCOMPARE(info->line, 1);
+    QCOMPARE(info->column, 1);
+}
+
+void ReadExportedDiagnosticsTest::testOffsetEndOfFirstLine()
+{
+    const auto info = byteOffsetInUtf8TextToLineColumn(asciiWord, 2);
+    QVERIFY(info);
+    QCOMPARE(info->line, 1);
+    QCOMPARE(info->column, 3);
+}
+
+// The invocation
+//
+//   clang-tidy "-checks=-*,readability-braces-around-statements" /path/to/file
+//
+// for the code
+//
+//   void f(bool b)
+//   {
+//       if (b)
+//           f(b);
+//   }
+//
+// emits
+//
+//   3:11: warning: statement should be inside braces [readability-braces-around-statements]
+//
+// The newline in the if-line is considered as column 11, which is normally not visible in the
+// editor.
+void ReadExportedDiagnosticsTest::testOffsetOffsetPointingToLineSeparator_unix()
+{
+    const auto info = byteOffsetInUtf8TextToLineColumn(asciiMultiLine, 3);
+    QVERIFY(info);
+    QCOMPARE(info->line, 1);
+    QCOMPARE(info->column, 4);
+}
+
+// For a file with dos style line endings ("\r\n"), clang-tidy points to '\r'.
+void ReadExportedDiagnosticsTest::testOffsetOffsetPointingToLineSeparator_dos()
+{
+    const auto info = byteOffsetInUtf8TextToLineColumn(asciiMultiLine_dos, 3);
+    QVERIFY(info);
+    QCOMPARE(info->line, 1);
+    QCOMPARE(info->column, 4);
+}
+
+void ReadExportedDiagnosticsTest::testOffsetStartOfSecondLine()
+{
+    const auto info = byteOffsetInUtf8TextToLineColumn(asciiMultiLine, 4);
+    QVERIFY(info);
+    QCOMPARE(info->line, 2);
+    QCOMPARE(info->column, 1);
+}
+
+void ReadExportedDiagnosticsTest::testOffsetMultiByteCodePoint1()
+{
+    const auto info = byteOffsetInUtf8TextToLineColumn(nonAsciiMultiLine, 3);
+    QVERIFY(info);
+    QCOMPARE(info->line, 2);
+    QCOMPARE(info->column, 1);
+}
+
+void ReadExportedDiagnosticsTest::testOffsetMultiByteCodePoint2()
+{
+    const auto info = byteOffsetInUtf8TextToLineColumn(nonAsciiMultiLine, 11);
+    QVERIFY(info);
+    QCOMPARE(info->line, 3);
+    QCOMPARE(info->column, 2);
+}
+
+// Replace FILE_PATH with a real absolute file path in the *.yaml files.
+QString ReadExportedDiagnosticsTest::createFile(const QString &yamlFilePath,
+                                                const QString &filePathToInject) const
+{
+    QTC_ASSERT(QDir::isAbsolutePath(filePathToInject), return QString());
+    const Utils::FilePath newFileName = FilePath::fromString(m_baseDir->absolutePath(
+                QFileInfo(yamlFilePath).fileName().toLocal8Bit()));
+
+    Utils::FileReader reader;
+    if (QTC_GUARD(reader.fetch(Utils::FilePath::fromString(yamlFilePath),
+                               QIODevice::ReadOnly | QIODevice::Text))) {
+        QByteArray contents = reader.data();
+        contents.replace("FILE_PATH", filePathToInject.toLocal8Bit());
+
+        Utils::FileSaver fileSaver(newFileName, QIODevice::WriteOnly | QIODevice::Text);
+        QTC_CHECK(fileSaver.write(contents));
+        QTC_CHECK(fileSaver.finalize());
+    }
+
+    return newFileName.toString();
+}
+
+FilePath ReadExportedDiagnosticsTest::filePath(const QString &fileName) const
+{
+    return FilePath::fromString(m_baseDir->absolutePath(fileName.toUtf8()));
+}
+
+} // namespace ClangTools::Internal
diff --git a/src/plugins/clangtools/readexporteddiagnosticstest.h b/src/plugins/clangtools/readexporteddiagnosticstest.h
new file mode 100644
index 00000000000..007ae7802e8
--- /dev/null
+++ b/src/plugins/clangtools/readexporteddiagnosticstest.h
@@ -0,0 +1,76 @@
+/****************************************************************************
+**
+** Copyright (C) 2022 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.
+**
+****************************************************************************/
+
+#pragma once
+
+#include <QObject>
+#include <QString>
+
+namespace CppEditor::Tests { class TemporaryCopiedDir; }
+namespace Utils { class FilePath; }
+
+namespace ClangTools::Internal {
+
+class ReadExportedDiagnosticsTest : public QObject
+{
+    Q_OBJECT
+public:
+    ReadExportedDiagnosticsTest();
+    ~ReadExportedDiagnosticsTest();
+
+private slots:
+    void initTestCase();
+    void init();
+
+    void testNonExistingFile();
+    void testEmptyFile();
+    void testUnexpectedFileContents();
+    void testTidy();
+    void testAcceptDiagsFromFilePaths_None();
+    void testTidy_ClangAnalyzer();
+    void testClazy();
+
+    void testOffsetInvalidText();
+    void testOffsetInvalidOffset_EmptyInput();
+    void testOffsetInvalidOffset_Before();
+    void testOffsetInvalidOffset_After();
+    void testOffsetInvalidOffset_NotFirstByteOfMultiByte();
+    void testOffsetStartOfFirstLine();
+    void testOffsetEndOfFirstLine();
+    void testOffsetOffsetPointingToLineSeparator_unix();
+    void testOffsetOffsetPointingToLineSeparator_dos();
+    void testOffsetStartOfSecondLine();
+    void testOffsetMultiByteCodePoint1();
+    void testOffsetMultiByteCodePoint2();
+
+private:
+    QString createFile(const QString &yamlFilePath, const QString &filePathToInject) const;
+    Utils::FilePath filePath(const QString &fileName) const;
+
+    CppEditor::Tests::TemporaryCopiedDir * const m_baseDir;
+    QString m_message;
+};
+
+} // namespace ClangTools::Internal
diff --git a/tests/unit/unittest/data/clangtools/CMakeLists.txt b/src/plugins/clangtools/unit-tests/exported-diagnostics/CMakeLists.txt
index b445f81b7dd..b445f81b7dd 100644
--- a/tests/unit/unittest/data/clangtools/CMakeLists.txt
+++ b/src/plugins/clangtools/unit-tests/exported-diagnostics/CMakeLists.txt
diff --git a/tests/unit/unittest/data/clangtools/clang-analyzer.dividezero.cpp b/src/plugins/clangtools/unit-tests/exported-diagnostics/clang-analyzer.dividezero.cpp
index 5f623dc114b..5f623dc114b 100644
--- a/tests/unit/unittest/data/clangtools/clang-analyzer.dividezero.cpp
+++ b/src/plugins/clangtools/unit-tests/exported-diagnostics/clang-analyzer.dividezero.cpp
diff --git a/tests/unit/unittest/data/clangtools/clang-analyzer.dividezero.yaml b/src/plugins/clangtools/unit-tests/exported-diagnostics/clang-analyzer.dividezero.yaml
index d19c5887a98..d19c5887a98 100644
--- a/tests/unit/unittest/data/clangtools/clang-analyzer.dividezero.yaml
+++ b/src/plugins/clangtools/unit-tests/exported-diagnostics/clang-analyzer.dividezero.yaml
diff --git a/tests/unit/unittest/data/clangtools/clang-analyzer.dividezero_win.yaml b/src/plugins/clangtools/unit-tests/exported-diagnostics/clang-analyzer.dividezero_win.yaml
index d54844d25cf..d54844d25cf 100644
--- a/tests/unit/unittest/data/clangtools/clang-analyzer.dividezero_win.yaml
+++ b/src/plugins/clangtools/unit-tests/exported-diagnostics/clang-analyzer.dividezero_win.yaml
diff --git a/tests/unit/unittest/data/clangtools/clazy.qgetenv.cpp b/src/plugins/clangtools/unit-tests/exported-diagnostics/clazy.qgetenv.cpp
index e04518821cb..e04518821cb 100644
--- a/tests/unit/unittest/data/clangtools/clazy.qgetenv.cpp
+++ b/src/plugins/clangtools/unit-tests/exported-diagnostics/clazy.qgetenv.cpp
diff --git a/tests/unit/unittest/data/clangtools/clazy.qgetenv.yaml b/src/plugins/clangtools/unit-tests/exported-diagnostics/clazy.qgetenv.yaml
index a465a1ca638..a465a1ca638 100644
--- a/tests/unit/unittest/data/clangtools/clazy.qgetenv.yaml
+++ b/src/plugins/clangtools/unit-tests/exported-diagnostics/clazy.qgetenv.yaml
diff --git a/tests/unit/unittest/data/clangtools/clazy.qgetenv_win.yaml b/src/plugins/clangtools/unit-tests/exported-diagnostics/clazy.qgetenv_win.yaml
index c80a701373b..c80a701373b 100644
--- a/tests/unit/unittest/data/clangtools/clazy.qgetenv_win.yaml
+++ b/src/plugins/clangtools/unit-tests/exported-diagnostics/clazy.qgetenv_win.yaml
diff --git a/tests/unit/unittest/data/clangtools/empty.yaml b/src/plugins/clangtools/unit-tests/exported-diagnostics/empty.yaml
index e69de29bb2d..e69de29bb2d 100644
--- a/tests/unit/unittest/data/clangtools/empty.yaml
+++ b/src/plugins/clangtools/unit-tests/exported-diagnostics/empty.yaml
diff --git a/tests/unit/unittest/data/clangtools/main.cpp b/src/plugins/clangtools/unit-tests/exported-diagnostics/main.cpp
index df38a776481..df38a776481 100644
--- a/tests/unit/unittest/data/clangtools/main.cpp
+++ b/src/plugins/clangtools/unit-tests/exported-diagnostics/main.cpp
diff --git a/tests/unit/unittest/data/clangtools/tidy.modernize-use-nullptr.cpp b/src/plugins/clangtools/unit-tests/exported-diagnostics/tidy.modernize-use-nullptr.cpp
index fedae863306..fedae863306 100644
--- a/tests/unit/unittest/data/clangtools/tidy.modernize-use-nullptr.cpp
+++ b/src/plugins/clangtools/unit-tests/exported-diagnostics/tidy.modernize-use-nullptr.cpp
diff --git a/tests/unit/unittest/data/clangtools/tidy.modernize-use-nullptr.yaml b/src/plugins/clangtools/unit-tests/exported-diagnostics/tidy.modernize-use-nullptr.yaml
index 7724d3bdfcb..7724d3bdfcb 100644
--- a/tests/unit/unittest/data/clangtools/tidy.modernize-use-nullptr.yaml
+++ b/src/plugins/clangtools/unit-tests/exported-diagnostics/tidy.modernize-use-nullptr.yaml
diff --git a/tests/unit/unittest/data/clangtools/tidy.modernize-use-nullptr_win.yaml b/src/plugins/clangtools/unit-tests/exported-diagnostics/tidy.modernize-use-nullptr_win.yaml
index c6bb6766adb..c6bb6766adb 100644
--- a/tests/unit/unittest/data/clangtools/tidy.modernize-use-nullptr_win.yaml
+++ b/src/plugins/clangtools/unit-tests/exported-diagnostics/tidy.modernize-use-nullptr_win.yaml
diff --git a/tests/unit/unittest/CMakeLists.txt b/tests/unit/unittest/CMakeLists.txt
index d51a8a56adc..e661df8237b 100644
--- a/tests/unit/unittest/CMakeLists.txt
+++ b/tests/unit/unittest/CMakeLists.txt
@@ -142,11 +142,6 @@ add_custom_command(TARGET unittest POST_BUILD
 )
 
 extend_qtc_test(unittest
-  SOURCES
-    readexporteddiagnostics-test.cpp
-)
-
-extend_qtc_test(unittest
   CONDITION TARGET GoogleBenchmark
   DEPENDS GoogleBenchmark
   SOURCES
@@ -327,27 +322,6 @@ endif()
 
 extend_qtc_test(unittest DEPENDS Utils CPlusPlus)
 
-find_package(yaml-cpp QUIET MODULE)
-
-extend_qtc_test(unittest
-  DEPENDS yaml-cpp
-  DEFINES CLANGTOOLS_STATIC_LIBRARY
-  SOURCES_PREFIX ../../../src/plugins/clangtools
-  SOURCES
-    clangtoolsdiagnostic.cpp
-    clangtoolsdiagnostic.h
-    clangtoolslogfilereader.cpp
-    clangtoolslogfilereader.h
-)
-
-extend_qtc_test(unittest
-  DEFINES DEBUGGER_STATIC_LIBRARY
-  SOURCES_PREFIX ../../../src/plugins/debugger
-  SOURCES
-    analyzer/diagnosticlocation.cpp
-    analyzer/diagnosticlocation.h
-)
-
 extend_qtc_test(unittest
   SOURCES_PREFIX ../../../src/plugins/coreplugin
   DEFINES CORE_STATIC_LIBRARY
diff --git a/tests/unit/unittest/readexporteddiagnostics-test.cpp b/tests/unit/unittest/readexporteddiagnostics-test.cpp
deleted file mode 100644
index dcd0a00ee79..00000000000
--- a/tests/unit/unittest/readexporteddiagnostics-test.cpp
+++ /dev/null
@@ -1,350 +0,0 @@
-/****************************************************************************
-**
-** Copyright (C) 2019 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 <clangtools/clangtoolslogfilereader.h>
-
-#include <utils/fileutils.h>
-#include <utils/qtcassert.h>
-
-#define TESTDATA TESTDATA_DIR "/clangtools/"
-
-using namespace ClangTools::Internal;
-using Debugger::DiagnosticLocation;
-
-namespace {
-
-class ReadExportedDiagnostics : public ::testing::Test
-{
-protected:
-    void SetUp() override
-    {
-        ASSERT_TRUE(temporaryDir.isValid());
-    }
-
-    // Replace FILE_PATH with a real absolute file path in the *.yaml files.
-    QString createFile(const QString &yamlFilePath, const QString &filePathToInject)
-    {
-        QTC_ASSERT(QDir::isAbsolutePath(filePathToInject), return QString());
-        const Utils::FilePath newFileName = temporaryDir.filePath(QFileInfo(yamlFilePath).fileName());
-
-        Utils::FileReader reader;
-        if (QTC_GUARD(reader.fetch(Utils::FilePath::fromString(yamlFilePath),
-                                   QIODevice::ReadOnly | QIODevice::Text))) {
-            QByteArray contents = reader.data();
-            contents.replace("FILE_PATH", filePathToInject.toLocal8Bit());
-
-            Utils::FileSaver fileSaver(newFileName, QIODevice::WriteOnly | QIODevice::Text);
-            QTC_CHECK(fileSaver.write(contents));
-            QTC_CHECK(fileSaver.finalize());
-        }
-
-        return newFileName.toString();
-    }
-
-protected:
-    QString errorMessage;
-    Utils::TemporaryDirectory temporaryDir{"clangtools-tests-XXXXXX"};
-};
-
-TEST_F(ReadExportedDiagnostics, NotExistingFile)
-{
-    Diagnostics diags = readExportedDiagnostics("notExistingFile.yaml",
-                                                {},
-                                                &errorMessage);
-
-    ASSERT_THAT(diags, IsEmpty());
-    ASSERT_FALSE(errorMessage.isEmpty());
-}
-
-TEST_F(ReadExportedDiagnostics, EmptyFile)
-{
-    Diagnostics diags = readExportedDiagnostics(TESTDATA "empty.yaml",
-                                                {},
-                                                &errorMessage);
-
-    ASSERT_THAT(diags, IsEmpty());
-    ASSERT_TRUE(errorMessage.isEmpty());
-}
-
-TEST_F(ReadExportedDiagnostics, UnexpectedFileContents)
-{
-    const QString sourceFile = TESTDATA "tidy.modernize-use-nullptr.cpp";
-
-    Diagnostics diags = readExportedDiagnostics(Utils::FilePath::fromString(sourceFile),
-                                                {},
-                                                &errorMessage);
-
-    ASSERT_FALSE(errorMessage.isEmpty());
-    ASSERT_THAT(diags, IsEmpty());
-}
-
-static QString appendYamlSuffix(const char *filePathFragment)
-{
-    const QString yamlSuffix = QLatin1String(Utils::HostOsInfo::isWindowsHost()
-                                             ? "_win.yaml" : ".yaml");
-    return filePathFragment + yamlSuffix;
-}
-
-TEST_F(ReadExportedDiagnostics, Tidy)
-{
-    const Utils::FilePath sourceFile = Utils::FilePath::fromString(
-        TESTDATA "tidy.modernize-use-nullptr.cpp");
-    const QString exportedFile = createFile(appendYamlSuffix(TESTDATA "tidy.modernize-use-nullptr"),
-                                            sourceFile.toString());
-    Diagnostic expectedDiag;
-    expectedDiag.name = "modernize-use-nullptr";
-    expectedDiag.location = {sourceFile, 2, 25};
-    expectedDiag.description = "use nullptr [modernize-use-nullptr]";
-    expectedDiag.type = "warning";
-    expectedDiag.hasFixits = true;
-    expectedDiag.explainingSteps = {
-        ExplainingStep{"nullptr",
-                       expectedDiag.location,
-                       {expectedDiag.location, {sourceFile, 2, 26}},
-                       true}};
-
-    Diagnostics diags = readExportedDiagnostics(Utils::FilePath::fromString(exportedFile),
-                                                {},
-                                                &errorMessage);
-
-    ASSERT_TRUE(errorMessage.isEmpty());
-    ASSERT_THAT(diags, ElementsAre(expectedDiag));
-}
-
-TEST_F(ReadExportedDiagnostics, AcceptDiagsFromFilePaths_None)
-{
-    const QString sourceFile = TESTDATA "tidy.modernize-use-nullptr.cpp";
-    const QString exportedFile = createFile(TESTDATA "tidy.modernize-use-nullptr.yaml", sourceFile);
-    const auto acceptNone = [](const Utils::FilePath &) { return false; };
-
-    Diagnostics diags = readExportedDiagnostics(Utils::FilePath::fromString(exportedFile),
-                                                acceptNone,
-                                                &errorMessage);
-
-    ASSERT_TRUE(errorMessage.isEmpty());
-    ASSERT_THAT(diags, IsEmpty());
-}
-
-// Diagnostics from clang (static) analyzer passed through via clang-tidy
-TEST_F(ReadExportedDiagnostics, Tidy_ClangAnalyzer)
-{
-    const Utils::FilePath sourceFile = Utils::FilePath::fromString(TESTDATA
-                                                                   "clang-analyzer.dividezero.cpp");
-    const QString exportedFile = createFile(appendYamlSuffix(TESTDATA "clang-analyzer.dividezero"),
-                                            sourceFile.toString());
-    Diagnostic expectedDiag;
-    expectedDiag.name = "clang-analyzer-core.DivideZero";
-    expectedDiag.location = {sourceFile, 4, 15};
-    expectedDiag.description = "Division by zero [clang-analyzer-core.DivideZero]";
-    expectedDiag.type = "warning";
-    expectedDiag.hasFixits = false;
-    expectedDiag.explainingSteps = {
-        ExplainingStep{"Assuming 'z' is equal to 0",
-                       {sourceFile, 3, 7},
-                       {},
-                       false,
-        },
-        ExplainingStep{"Taking true branch",
-                       {sourceFile, 3, 3},
-                       {},
-                       false,
-        },
-        ExplainingStep{"Division by zero",
-                       {sourceFile, 4, 15},
-                       {},
-                       false,
-        },
-    };
-
-    Diagnostics diags = readExportedDiagnostics(Utils::FilePath::fromString(exportedFile),
-                                                {},
-                                                &errorMessage);
-
-    ASSERT_TRUE(errorMessage.isEmpty());
-    ASSERT_THAT(diags, ElementsAre(expectedDiag));
-}
-
-TEST_F(ReadExportedDiagnostics, Clazy)
-{
-    const Utils::FilePath sourceFile = Utils::FilePath::fromString(TESTDATA "clazy.qgetenv.cpp");
-    const QString exportedFile = createFile(appendYamlSuffix(TESTDATA "clazy.qgetenv"),
-                                            sourceFile.toString());
-    Diagnostic expectedDiag;
-    expectedDiag.name = "clazy-qgetenv";
-    expectedDiag.location = {sourceFile, 7, 5};
-    expectedDiag.description = "qgetenv().isEmpty() allocates. Use qEnvironmentVariableIsEmpty() instead [clazy-qgetenv]";
-    expectedDiag.type = "warning";
-    expectedDiag.hasFixits = true;
-    expectedDiag.explainingSteps = {
-        ExplainingStep{"qEnvironmentVariableIsEmpty",
-                       expectedDiag.location,
-                       {expectedDiag.location, {sourceFile, 7, 12}},
-                       true
-        },
-        ExplainingStep{")",
-                       {sourceFile, 7, 18},
-                       {{sourceFile, 7, 18}, {sourceFile, 7, 29}},
-                       true},
-    };
-
-    Diagnostics diags = readExportedDiagnostics(Utils::FilePath::fromString(exportedFile),
-                                                {},
-                                                &errorMessage);
-
-    ASSERT_TRUE(errorMessage.isEmpty());
-    ASSERT_THAT(diags, ElementsAre(expectedDiag));
-}
-
-class ByteOffsetInUtf8TextToLineColumn : public ::testing::Test
-{
-protected:
-    const char *empty = "";
-    const char *asciiWord = "FOO";
-    const char *asciiMultiLine = "FOO\nBAR";
-    const char *asciiMultiLine_dos = "FOO\r\nBAR";
-    const char *asciiEmptyMultiLine = "\n\n";
-    // U+00FC  - 2 code units in UTF8, 1 in UTF16 - LATIN SMALL LETTER U WITH DIAERESIS
-    // U+4E8C  - 3 code units in UTF8, 1 in UTF16 - CJK UNIFIED IDEOGRAPH-4E8C
-    // U+10302 - 4 code units in UTF8, 2 in UTF16 - OLD ITALIC LETTER KE
-    const char *nonAsciiMultiLine = "\xc3\xbc" "\n"
-                                    "\xe4\xba\x8c" "\n"
-                                    "\xf0\x90\x8c\x82" "X";
-
-    // Convenience
-    const char *text = nullptr;
-};
-
-TEST_F(ByteOffsetInUtf8TextToLineColumn, InvalidText)
-{
-    ASSERT_FALSE(byteOffsetInUtf8TextToLineColumn(nullptr, 0));
-}
-
-TEST_F(ByteOffsetInUtf8TextToLineColumn, InvalidOffset_EmptyInput)
-{
-    ASSERT_FALSE(byteOffsetInUtf8TextToLineColumn(empty, 0));
-}
-
-TEST_F(ByteOffsetInUtf8TextToLineColumn, InvalidOffset_Before)
-{
-    ASSERT_FALSE(byteOffsetInUtf8TextToLineColumn(asciiWord, -1));
-}
-
-TEST_F(ByteOffsetInUtf8TextToLineColumn, InvalidOffset_After)
-{
-    ASSERT_FALSE(byteOffsetInUtf8TextToLineColumn(asciiWord, 3));
-}
-
-TEST_F(ByteOffsetInUtf8TextToLineColumn, InvalidOffset_NotFirstByteOfMultiByte)
-{
-    ASSERT_FALSE(byteOffsetInUtf8TextToLineColumn(nonAsciiMultiLine, 1));
-}
-
-TEST_F(ByteOffsetInUtf8TextToLineColumn, StartOfFirstLine)
-{
-    auto info = byteOffsetInUtf8TextToLineColumn(asciiWord, 0);
-
-    ASSERT_TRUE(info);
-    ASSERT_THAT(info->line, Eq(1));
-    ASSERT_THAT(info->column, Eq(1));
-}
-
-TEST_F(ByteOffsetInUtf8TextToLineColumn, EndOfFirstLine)
-{
-    auto info = byteOffsetInUtf8TextToLineColumn(asciiWord, 2);
-
-    ASSERT_TRUE(info);
-    ASSERT_THAT(info->line, Eq(1));
-    ASSERT_THAT(info->column, Eq(3));
-}
-
-// The invocation
-//
-//   clang-tidy "-checks=-*,readability-braces-around-statements" /path/to/file
-//
-// for the code
-//
-//   void f(bool b)
-//   {
-//       if (b)
-//           f(b);
-//   }
-//
-// emits
-//
-//   3:11: warning: statement should be inside braces [readability-braces-around-statements]
-//
-// The new line in the if-line is considered as column 11, which is normally not visible in the
-// editor.
-TEST_F(ByteOffsetInUtf8TextToLineColumn, OffsetPointingToLineSeparator_unix)
-{
-    auto info = byteOffsetInUtf8TextToLineColumn(asciiMultiLine, 3);
-
-    ASSERT_TRUE(info);
-    ASSERT_THAT(info->line, Eq(1));
-    ASSERT_THAT(info->column, Eq(4));
-}
-
-// For a file with dos style line endings ("\r\n"), clang-tidy points to '\r'.
-TEST_F(ByteOffsetInUtf8TextToLineColumn, OffsetPointingToLineSeparator_dos)
-{
-    auto info = byteOffsetInUtf8TextToLineColumn(asciiMultiLine_dos, 3);
-
-    ASSERT_TRUE(info);
-    ASSERT_THAT(info->line, Eq(1));
-    ASSERT_THAT(info->column, Eq(4));
-}
-
-TEST_F(ByteOffsetInUtf8TextToLineColumn, StartOfSecondLine)
-{
-    auto info = byteOffsetInUtf8TextToLineColumn(asciiMultiLine, 4);
-
-    ASSERT_TRUE(info);
-    ASSERT_THAT(info->line, Eq(2));
-    ASSERT_THAT(info->column, Eq(1));
-}
-
-TEST_F(ByteOffsetInUtf8TextToLineColumn, MultiByteCodePoint1)
-{
-    auto info = byteOffsetInUtf8TextToLineColumn(nonAsciiMultiLine, 3);
-
-    ASSERT_TRUE(info);
-    ASSERT_THAT(info->line, Eq(2));
-    ASSERT_THAT(info->column, Eq(1));
-}
-
-TEST_F(ByteOffsetInUtf8TextToLineColumn, MultiByteCodePoint2)
-{
-    auto info = byteOffsetInUtf8TextToLineColumn(nonAsciiMultiLine, 11);
-
-    ASSERT_TRUE(info);
-    ASSERT_THAT(info->line, Eq(3));
-    ASSERT_THAT(info->column, Eq(2));
-}
-
-} // namespace
-
-#undef TESTDATA
diff --git a/tests/unit/unittest/unittest.qbs b/tests/unit/unittest/unittest.qbs
index d53e858b5da..21fa47cb433 100644
--- a/tests/unit/unittest/unittest.qbs
+++ b/tests/unit/unittest/unittest.qbs
@@ -23,7 +23,6 @@ Project {
         Depends { name: "sqlite_sources" }
         Depends { name: "Core" }
         Depends { name: "CPlusPlus" }
-        Depends { name: "yaml-cpp" }
 
         Depends { name: "Qt"; submodules: ["network", "widgets", "testlib"] }
 
@@ -40,9 +39,7 @@ Project {
                         "QT_RESTRICTED_CAST_FROM_ASCII",
                         "QT_USE_FAST_OPERATOR_PLUS",
                         "QT_USE_FAST_CONCATENATION",
-                        "CLANGTOOLS_STATIC_LIBRARY",
                         "CPPEDITOR_STATIC_LIBRARY",
-                        "DEBUGGER_STATIC_LIBRARY",
                         "UNIT_TESTS",
                         "DONT_CHECK_MESSAGE_COUNTER",
                         'QTC_RESOURCE_DIR="' + path + "/../../../share/qtcreator" + '"',
@@ -173,14 +170,6 @@ Project {
         ]
 
         Group {
-            name: "libclang tests"
-            condition: libclang.present && (!qbs.targetOS.contains("windows") || libclang.llvmBuildModeMatches)
-            files: [
-                "readexporteddiagnostics-test.cpp",
-            ]
-        }
-
-        Group {
             name: "benchmark test"
             condition: benchmark.present
             files: "smallstring-benchmark.cpp"
@@ -203,26 +192,5 @@ Project {
                 "cppprojectfile.h",
             ]
         }
-
-        Group {
-            name: "sources from clangtools"
-            condition: libclang.present
-            prefix: "../../../src/plugins/clangtools/"
-            files: [
-                "clangtoolsdiagnostic.cpp",
-                "clangtoolsdiagnostic.h",
-                "clangtoolslogfilereader.cpp",
-                "clangtoolslogfilereader.h",
-            ]
-        }
-
-        Group {
-            name: "sources from Debugger"
-            prefix: "../../../src/plugins/debugger/analyzer/"
-            files: [
-                "diagnosticlocation.cpp",
-                "diagnosticlocation.h",
-            ]
-        }
     }
 }