ExtensionSystem: FilePath'ify

Change IPlugin::fileName() and IPlugin::location to use
FilePath instead of QString.

Change-Id: If473ab1e258951735f93221cbd62c505f0727eb2
Reviewed-by: hjk <hjk@qt.io>

20 files changed, 79 insertions, 75 deletions

diff --git a/src/app/main.cpp b/src/app/main.cpp
index 9851078e72..5ebb3ff4d7 100644
--- a/src/app/main.cpp
+++ b/src/app/main.cpp
@@ -765,7 +765,7 @@ int main(int argc, char **argv)
     // Load
     const QStringList pluginPaths = getPluginPaths() + installPluginPaths
                                     + options.customPluginPaths;
-    PluginManager::setPluginPaths(pluginPaths);
+    PluginManager::setPluginPaths(Utils::transform(pluginPaths, &Utils::FilePath::fromUserInput));
     QMap<QString, QString> foundAppOptions;
     if (pluginArguments.size() > 1) {
         QMap<QString, bool> appOptions;
diff --git a/src/libs/extensionsystem/plugindetailsview.cpp b/src/libs/extensionsystem/plugindetailsview.cpp
index 291b385219..35e646bad7 100644
--- a/src/libs/extensionsystem/plugindetailsview.cpp
+++ b/src/libs/extensionsystem/plugindetailsview.cpp
@@ -146,7 +146,7 @@ void PluginDetailsView::update(PluginSpec *spec)
     d->vendor->setText(spec->vendor());
     d->component->setText(spec->category().isEmpty() ? Tr::tr("None") : spec->category());
     d->url->setText(QString::fromLatin1("<a href=\"%1\">%1</a>").arg(spec->url()));
-    d->location->setText(QDir::toNativeSeparators(spec->filePath()));
+    d->location->setText(spec->filePath().toUserOutput());
     const QString pattern = spec->platformSpecification().pattern();
     const QString platform = pattern.isEmpty() ? Tr::tr("All") : pattern;
     const QString platformString = Tr::tr("%1 (current: \"%2\")")
diff --git a/src/libs/extensionsystem/pluginmanager.cpp b/src/libs/extensionsystem/pluginmanager.cpp
index 85dbf62983..718a66a727 100644
--- a/src/libs/extensionsystem/pluginmanager.cpp
+++ b/src/libs/extensionsystem/pluginmanager.cpp
@@ -443,7 +443,7 @@ FutureSynchronizer *PluginManager::futureSynchronizer()
 
     \sa setPluginPaths()
 */
-QStringList PluginManager::pluginPaths()
+FilePaths PluginManager::pluginPaths()
 {
     return d->pluginPaths;
 }
@@ -455,7 +455,7 @@ QStringList PluginManager::pluginPaths()
     \sa pluginPaths()
     \sa loadPlugins()
 */
-void PluginManager::setPluginPaths(const QStringList &paths)
+void PluginManager::setPluginPaths(const FilePaths &paths)
 {
     d->setPluginPaths(paths);
 }
@@ -1732,7 +1732,7 @@ void PluginManagerPrivate::loadPlugin(PluginSpec *spec, PluginSpec::State destSt
 /*!
     \internal
 */
-void PluginManagerPrivate::setPluginPaths(const QStringList &paths)
+void PluginManagerPrivate::setPluginPaths(const FilePaths &paths)
 {
     qCDebug(pluginLog) << "Plugin search paths:" << paths;
     qCDebug(pluginLog) << "Required IID:" << pluginIID;
@@ -1741,17 +1741,18 @@ void PluginManagerPrivate::setPluginPaths(const QStringList &paths)
     readPluginPaths();
 }
 
-static const QStringList pluginFiles(const QStringList &pluginPaths)
+static const FilePaths pluginFiles(const FilePaths &pluginPaths)
 {
-    QStringList pluginFiles;
-    QStringList searchPaths = pluginPaths;
+    FilePaths pluginFiles;
+    FilePaths searchPaths = pluginPaths;
     while (!searchPaths.isEmpty()) {
-        const QDir dir(searchPaths.takeFirst());
-        const QFileInfoList files = dir.entryInfoList(QDir::Files | QDir::NoSymLinks);
-        const QStringList absoluteFilePaths = Utils::transform(files, &QFileInfo::absoluteFilePath);
-        pluginFiles += Utils::filtered(absoluteFilePaths, [](const QString &path) { return QLibrary::isLibrary(path); });
-        const QFileInfoList dirs = dir.entryInfoList(QDir::Dirs|QDir::NoDotAndDotDot);
-        searchPaths += Utils::transform(dirs, &QFileInfo::absoluteFilePath);
+        const FilePath dir = searchPaths.takeFirst().absoluteFilePath();
+        const FilePaths files = dir.dirEntries(QDir::Files | QDir::NoSymLinks);
+        pluginFiles += Utils::filtered(files, [](const FilePath &path) {
+            return QLibrary::isLibrary(path.toFSPathString());
+        });
+        const FilePaths dirs = dir.dirEntries(QDir::Dirs | QDir::NoDotAndDotDot);
+        searchPaths += dirs;
     }
     return pluginFiles;
 }
@@ -1793,11 +1794,12 @@ void PluginManagerPrivate::readPluginPaths()
     QVector<PluginSpec *> newSpecs;
 
     // from the file system
-    for (const QString &pluginFile : pluginFiles(pluginPaths)) {
+    for (const FilePath &pluginFile : pluginFiles(pluginPaths)) {
         expected_str<PluginSpec *> spec = readCppPluginSpec(pluginFile);
         if (!spec) {
-            qCInfo(pluginLog).noquote()
-                << QString("Ignoring plugin \"%1\" because: %2").arg(pluginFile).arg(spec.error());
+            qCInfo(pluginLog).noquote() << QString("Ignoring plugin \"%1\" because: %2")
+                                               .arg(pluginFile.toUserOutput())
+                                               .arg(spec.error());
             continue;
         }
         newSpecs.append(*spec);
diff --git a/src/libs/extensionsystem/pluginmanager.h b/src/libs/extensionsystem/pluginmanager.h
index b35df535b7..c5045e7187 100644
--- a/src/libs/extensionsystem/pluginmanager.h
+++ b/src/libs/extensionsystem/pluginmanager.h
@@ -6,6 +6,7 @@
 #include "extensionsystem_global.h"
 
 #include <aggregation/aggregate.h>
+#include <utils/filepath.h>
 #include <utils/qtcsettings.h>
 
 #include <QObject>
@@ -69,8 +70,8 @@ public:
     static QVector<PluginSpec *> loadQueue();
     static void loadPlugins();
     static void loadPluginsAtRuntime(const QSet<PluginSpec *> &plugins);
-    static QStringList pluginPaths();
-    static void setPluginPaths(const QStringList &paths);
+    static Utils::FilePaths pluginPaths();
+    static void setPluginPaths(const Utils::FilePaths &paths);
     static QString pluginIID();
     static void setPluginIID(const QString &iid);
     static const QVector<PluginSpec *> plugins();
diff --git a/src/libs/extensionsystem/pluginmanager_p.h b/src/libs/extensionsystem/pluginmanager_p.h
index 074400bd6d..a761614223 100644
--- a/src/libs/extensionsystem/pluginmanager_p.h
+++ b/src/libs/extensionsystem/pluginmanager_p.h
@@ -53,7 +53,7 @@ public:
     void addPlugins(const QVector<PluginSpec *> &specs);
 
     void shutdown();
-    void setPluginPaths(const QStringList &paths);
+    void setPluginPaths(const Utils::FilePaths &paths);
     const QVector<ExtensionSystem::PluginSpec *> loadQueue();
     void loadPlugin(PluginSpec *spec, PluginSpec::State destState);
     void resolveDependencies();
@@ -91,7 +91,7 @@ public:
     QHash<QString, QVector<PluginSpec *>> pluginCategories;
     QVector<PluginSpec *> pluginSpecs;
     std::vector<TestSpec> testSpecs;
-    QStringList pluginPaths;
+    Utils::FilePaths pluginPaths;
     QString pluginIID;
     QVector<QObject *> allObjects;      // ### make this a QVector<QPointer<QObject> > > ?
     QStringList defaultDisabledPlugins; // Plugins/Ignored from install settings
diff --git a/src/libs/extensionsystem/pluginspec.cpp b/src/libs/extensionsystem/pluginspec.cpp
index 3e77732328..2d492c385f 100644
--- a/src/libs/extensionsystem/pluginspec.cpp
+++ b/src/libs/extensionsystem/pluginspec.cpp
@@ -201,8 +201,8 @@ public:
     QVector<ExtensionSystem::PluginDependency> dependencies;
 
     PluginSpec::PluginArgumentDescriptions argumentDescriptions;
-    QString location;
-    QString filePath;
+    FilePath location;
+    FilePath filePath;
 
     bool experimental{false};
     bool deprecated{false};
@@ -491,7 +491,7 @@ PluginSpec::PluginArgumentDescriptions PluginSpec::argumentDescriptions() const
 /*!
     Returns the absolute path to the directory containing the plugin.
 */
-QString PluginSpec::location() const
+FilePath PluginSpec::location() const
 {
     return d->location;
 }
@@ -499,7 +499,7 @@ QString PluginSpec::location() const
 /*!
     Returns the absolute path to the plugin.
 */
-QString PluginSpec::filePath() const
+FilePath PluginSpec::filePath() const
 {
     return d->filePath;
 }
@@ -692,19 +692,20 @@ namespace {
     \internal
     Returns false if the file does not represent a Qt Creator plugin.
 */
-expected_str<PluginSpec *> readCppPluginSpec(const QString &fileName)
+expected_str<PluginSpec *> readCppPluginSpec(const FilePath &fileName)
 {
     auto spec = new CppPluginSpec;
 
-    QFileInfo fileInfo(fileName);
-    spec->setLocation(fileInfo.absolutePath());
-    spec->setFilePath(fileInfo.absoluteFilePath());
+    const FilePath absPath = fileName.absoluteFilePath();
+
+    spec->setLocation(absPath.parentDir());
+    spec->setFilePath(absPath);
     spec->d->loader.emplace();
 
     if (Utils::HostOsInfo::isMacHost())
         spec->d->loader->setLoadHints(QLibrary::ExportExternalSymbolsHint);
 
-    spec->d->loader->setFileName(fileInfo.absoluteFilePath());
+    spec->d->loader->setFileName(absPath.toFSPathString());
     if (spec->d->loader->fileName().isEmpty())
         return make_unexpected(::ExtensionSystem::Tr::tr("Cannot open file"));
 
@@ -1110,12 +1111,12 @@ void PluginSpec::setState(State state)
     d->state = state;
 }
 
-void PluginSpec::setLocation(const QString &location)
+void PluginSpec::setLocation(const FilePath &location)
 {
     d->location = location;
 }
 
-void PluginSpec::setFilePath(const QString &filePath)
+void PluginSpec::setFilePath(const FilePath &filePath)
 {
     d->filePath = filePath;
 }
@@ -1142,8 +1143,7 @@ bool CppPluginSpec::loadLibrary()
         return false;
     }
     if (d->loader && !d->loader->load()) {
-        setError(QDir::toNativeSeparators(filePath()) + QString::fromLatin1(": ")
-                 + d->loader->errorString());
+        setError(filePath().toUserOutput() + QString::fromLatin1(": ") + d->loader->errorString());
         return false;
     }
     auto *pluginObject = d->loader ? qobject_cast<IPlugin *>(d->loader->instance())
diff --git a/src/libs/extensionsystem/pluginspec.h b/src/libs/extensionsystem/pluginspec.h
index becb70f579..7d45fe82c1 100644
--- a/src/libs/extensionsystem/pluginspec.h
+++ b/src/libs/extensionsystem/pluginspec.h
@@ -8,6 +8,7 @@
 #include "iplugin.h"
 
 #include <utils/expected.h>
+#include <utils/filepath.h>
 
 #include <QHash>
 #include <QStaticPlugin>
@@ -120,8 +121,8 @@ public:
     virtual QJsonObject metaData() const;
     virtual PerformanceData &performanceData() const;
     virtual PluginArgumentDescriptions argumentDescriptions() const;
-    virtual QString location() const;
-    virtual QString filePath() const;
+    virtual Utils::FilePath location() const;
+    virtual Utils::FilePath filePath() const;
     virtual QStringList arguments() const;
     virtual void setArguments(const QStringList &arguments);
     virtual void addArgument(const QString &argument);
@@ -160,8 +161,8 @@ protected:
 protected:
     virtual void setState(State state);
 
-    virtual void setLocation(const QString &location);
-    virtual void setFilePath(const QString &filePath);
+    virtual void setLocation(const Utils::FilePath &location);
+    virtual void setFilePath(const Utils::FilePath &filePath);
     virtual Utils::expected_str<void> readMetaData(const QJsonObject &metaData);
     Utils::expected_str<void> reportError(const QString &error);
 
@@ -169,14 +170,15 @@ private:
     std::unique_ptr<Internal::PluginSpecPrivate> d;
 };
 
-EXTENSIONSYSTEM_EXPORT Utils::expected_str<PluginSpec *> readCppPluginSpec(const QString &filePath);
+EXTENSIONSYSTEM_EXPORT Utils::expected_str<PluginSpec *> readCppPluginSpec(
+    const Utils::FilePath &filePath);
 EXTENSIONSYSTEM_EXPORT Utils::expected_str<PluginSpec *> readCppPluginSpec(
     const QStaticPlugin &plugin);
 
 class EXTENSIONSYSTEM_TEST_EXPORT CppPluginSpec : public PluginSpec
 {
     friend EXTENSIONSYSTEM_EXPORT Utils::expected_str<PluginSpec *> readCppPluginSpec(
-        const QString &filePath);
+        const Utils::FilePath &filePath);
     friend EXTENSIONSYSTEM_EXPORT Utils::expected_str<PluginSpec *> readCppPluginSpec(
         const QStaticPlugin &plugin);
 
diff --git a/src/libs/extensionsystem/pluginview.cpp b/src/libs/extensionsystem/pluginview.cpp
index 07fa11c7a9..902f90aca4 100644
--- a/src/libs/extensionsystem/pluginview.cpp
+++ b/src/libs/extensionsystem/pluginview.cpp
@@ -119,7 +119,7 @@ public:
                     toolTip = Tr::tr("Path: %1\nPlugin is disabled by command line argument.");
                 else
                     toolTip = Tr::tr("Path: %1");
-                return toolTip.arg(QDir::toNativeSeparators(m_spec->filePath()));
+                return toolTip.arg(m_spec->filePath().toUserOutput());
             }
             if (role == Qt::DecorationRole) {
                 bool ok = !m_spec->hasError();
diff --git a/src/plugins/coreplugin/plugininstallwizard.cpp b/src/plugins/coreplugin/plugininstallwizard.cpp
index 7e63e1d508..4d4ba69de9 100644
--- a/src/plugins/coreplugin/plugininstallwizard.cpp
+++ b/src/plugins/coreplugin/plugininstallwizard.cpp
@@ -154,7 +154,7 @@ void checkContents(QPromise<ArchiveIssue> &promise, const FilePath &tempDir)
         if (promise.isCanceled())
             return;
         it.next();
-        expected_str<PluginSpec *> spec = readCppPluginSpec(it.filePath());
+        expected_str<PluginSpec *> spec = readCppPluginSpec(FilePath::fromUserInput(it.filePath()));
         if (spec) {
             // Is a Qt Creator plugin. Let's see if we find a Core dependency and check the
             // version
diff --git a/src/plugins/extensionmanager/extensionmanagerwidget.cpp b/src/plugins/extensionmanager/extensionmanagerwidget.cpp
index be7e0f92ee..d8574a740f 100644
--- a/src/plugins/extensionmanager/extensionmanagerwidget.cpp
+++ b/src/plugins/extensionmanager/extensionmanagerwidget.cpp
@@ -153,7 +153,7 @@ void ExtensionManagerWidget::updateView(const QModelIndex &current,
                                    "of the extensions that are part of pack ") + data.name
                    : extension->longDescription();
         longDescription.replace("\n", "<br/>");
-        const QString location = isPack ? extension->location() : extension->filePath();
+        const FilePath location = isPack ? extension->location() : extension->filePath();
 
         QString description = htmlStart;
 
@@ -217,7 +217,7 @@ void ExtensionManagerWidget::updateView(const QModelIndex &current,
            .arg(Tr::tr("Version"))
            .arg(extension->version())
            .arg(Tr::tr("Location"))
-           .arg(location));
+           .arg(location.toUserOutput()));
 
         description.append(htmlEnd);
         m_primaryDescription->setText(description);
diff --git a/src/plugins/lua/luaengine.cpp b/src/plugins/lua/luaengine.cpp
index 67dea9be53..a49af1a388 100644
--- a/src/plugins/lua/luaengine.cpp
+++ b/src/plugins/lua/luaengine.cpp
@@ -135,8 +135,7 @@ expected_str<void> LuaEngine::prepareSetup(
         sol::lib::table,
         sol::lib::utf8);
 
-    const QString searchPath
-        = (FilePath::fromUserInput(pluginSpec.filePath()).parentDir() / "?.lua").toUserOutput();
+    const QString searchPath = (pluginSpec.location() / "?.lua").toUserOutput();
     lua["package"]["path"] = searchPath.toStdString();
 
     // TODO: only register what the plugin requested
diff --git a/src/plugins/lua/luaplugin.cpp b/src/plugins/lua/luaplugin.cpp
index 68b151c2fd..047847459c 100644
--- a/src/plugins/lua/luaplugin.cpp
+++ b/src/plugins/lua/luaplugin.cpp
@@ -62,8 +62,8 @@ public:
 
     bool delayedInitialize() final
     {
-        scanForPlugins(transform(PluginManager::pluginPaths(), [](const QString &path) -> FilePath {
-            return FilePath::fromUserInput(path) / "lua-plugins";
+        scanForPlugins(transform(PluginManager::pluginPaths(), [](const FilePath &path) {
+            return path / "lua-plugins";
         }));
 
         return true;
diff --git a/src/plugins/lua/luapluginspec.cpp b/src/plugins/lua/luapluginspec.cpp
index dfbb54a41d..19d52dbf37 100644
--- a/src/plugins/lua/luapluginspec.cpp
+++ b/src/plugins/lua/luapluginspec.cpp
@@ -71,8 +71,8 @@ expected_str<LuaPluginSpec *> LuaPluginSpec::create(const FilePath &filePath,
     if (!r)
         return make_unexpected(r.error());
 
-    pluginSpec->setFilePath(filePath.toUserOutput());
-    pluginSpec->setLocation(filePath.parentDir().toUserOutput());
+    pluginSpec->setFilePath(filePath);
+    pluginSpec->setLocation(filePath.parentDir());
 
     pluginSpec->d->pluginScriptPath = filePath;
 
diff --git a/src/plugins/projectexplorer/jsonwizard/jsonwizardfactory.cpp b/src/plugins/projectexplorer/jsonwizard/jsonwizardfactory.cpp
index e84ef955b8..9c00a32329 100644
--- a/src/plugins/projectexplorer/jsonwizard/jsonwizardfactory.cpp
+++ b/src/plugins/projectexplorer/jsonwizard/jsonwizardfactory.cpp
@@ -584,7 +584,7 @@ FilePaths &JsonWizardFactory::searchPaths()
         // add paths from enabled plugin meta data
         for (PluginSpec *plugin : PluginManager::plugins()) {
             if (plugin->state() == PluginSpec::Running) {
-                const auto base = FilePath::fromString(plugin->filePath()).parentDir();
+                const auto base = plugin->location();
                 const auto values = plugin->metaData().value("JsonWizardPaths").toArray();
                 for (const QJsonValue &v : values) {
                     const auto path = FilePath::fromString(v.toString());
diff --git a/src/plugins/qmldesigner/qmldesignerplugin.cpp b/src/plugins/qmldesigner/qmldesignerplugin.cpp
index 601cf96681..f1b8ecdfa7 100644
--- a/src/plugins/qmldesigner/qmldesignerplugin.cpp
+++ b/src/plugins/qmldesigner/qmldesignerplugin.cpp
@@ -625,12 +625,14 @@ void QmlDesignerPlugin::enforceDelayedInitialize()
         return;
 
     // adding default path to item library plugins
-    const QString postfix = Utils::HostOsInfo::isMacHost() ? QString("/QmlDesigner")
-                                                           : QString("/qmldesigner");
-    const QStringList pluginPaths = Utils::transform(ExtensionSystem::PluginManager::pluginPaths(),
-                                                     [postfix](const QString &p) {
-                                                         return QString(p + postfix);
-                                                     });
+    const QString postfix = Utils::HostOsInfo::isMacHost()
+                                ? QString("QmlDesigner")
+                                : QString("qmldesigner");
+    const QStringList pluginPaths =
+        Utils::transform(ExtensionSystem::PluginManager::pluginPaths(),
+                         [postfix](const Utils::FilePath &p) {
+                           return (p / postfix).toFSPathString();
+                         });
 
 #ifndef QDS_USE_PROJECTSTORAGE
     MetaInfo::initializeGlobal(pluginPaths, d->externalDependencies);
diff --git a/tests/auto/extensionsystem/pluginmanager/tst_pluginmanager.cpp b/tests/auto/extensionsystem/pluginmanager/tst_pluginmanager.cpp
index e57e71c533..4a9b0210a0 100644
--- a/tests/auto/extensionsystem/pluginmanager/tst_pluginmanager.cpp
+++ b/tests/auto/extensionsystem/pluginmanager/tst_pluginmanager.cpp
@@ -47,9 +47,9 @@ class MyClass11 : public MyClass1
     Q_OBJECT
 };
 
-static QString pluginFolder(const QLatin1String &folder)
+static Utils::FilePath pluginFolder(const QLatin1String &folder)
 {
-    return QLatin1String(PLUGINMANAGER_TESTS_DIR) + QLatin1String("/") + folder;
+    return Utils::FilePath::fromUserInput(QLatin1String(PLUGINMANAGER_TESTS_DIR)) / folder;
 }
 
 void tst_PluginManager::init()
@@ -138,7 +138,7 @@ void tst_PluginManager::getObject()
 
 void tst_PluginManager::circularPlugins()
 {
-    PluginManager::setPluginPaths(QStringList() << pluginFolder(QLatin1String("circularplugins")));
+    PluginManager::setPluginPaths({pluginFolder(QLatin1String("circularplugins"))});
     PluginManager::loadPlugins();
     const QVector<PluginSpec *> plugins = PluginManager::plugins();
     QCOMPARE(plugins.count(), 3);
@@ -160,7 +160,7 @@ void tst_PluginManager::circularPlugins()
 
 void tst_PluginManager::correctPlugins1()
 {
-    PluginManager::setPluginPaths(QStringList() << pluginFolder(QLatin1String("correctplugins1")));
+    PluginManager::setPluginPaths({pluginFolder(QLatin1String("correctplugins1"))});
     PluginManager::loadPlugins();
     bool specError = false;
     bool runError = false;
diff --git a/tests/auto/extensionsystem/pluginspec/CMakeLists.txt b/tests/auto/extensionsystem/pluginspec/CMakeLists.txt
index ad91750f28..efb94786d0 100644
--- a/tests/auto/extensionsystem/pluginspec/CMakeLists.txt
+++ b/tests/auto/extensionsystem/pluginspec/CMakeLists.txt
@@ -5,7 +5,7 @@ add_qtc_test(tst_pluginspec
     PLUGIN_DIR="${CMAKE_CURRENT_BINARY_DIR}"
     PLUGINSPEC_DIR="${CMAKE_CURRENT_SOURCE_DIR}"
     DLL_INFIX="$<$<CONFIG:Debug>:d>"
-  DEPENDS ExtensionSystem
+  DEPENDS ExtensionSystem Utils
   SOURCES
     tst_pluginspec.cpp
 )
diff --git a/tests/auto/extensionsystem/pluginspec/test.qbs b/tests/auto/extensionsystem/pluginspec/test.qbs
index b8196f93e6..56748fde12 100644
--- a/tests/auto/extensionsystem/pluginspec/test.qbs
+++ b/tests/auto/extensionsystem/pluginspec/test.qbs
@@ -4,6 +4,8 @@ QtcAutotest {
     name: "ExtensionSystem pluginspec autotest"
     Depends { name: "Aggregation" }
     Depends { name: "ExtensionSystem" }
+    Depends { name: "Utils" }
+
     Group {
         name: "Sources"
         files: "tst_pluginspec.cpp"
diff --git a/tests/auto/extensionsystem/pluginspec/tst_pluginspec.cpp b/tests/auto/extensionsystem/pluginspec/tst_pluginspec.cpp
index 39c043ff43..f52b0cf19a 100644
--- a/tests/auto/extensionsystem/pluginspec/tst_pluginspec.cpp
+++ b/tests/auto/extensionsystem/pluginspec/tst_pluginspec.cpp
@@ -14,6 +14,8 @@
 
 using namespace ExtensionSystem;
 
+static const Utils::FilePath PLUGIN_DIR_PATH = Utils::FilePath::fromUserInput(PLUGIN_DIR);
+
 static QJsonObject metaData(const QString &fileName)
 {
     QFile f(fileName);
@@ -221,14 +223,11 @@ void tst_PluginSpec::experimental()
 void tst_PluginSpec::locationAndPath()
 {
     Utils::expected_str<PluginSpec *> ps = readCppPluginSpec(
-        QLatin1String(PLUGIN_DIR) + QLatin1String("/testplugin/")
-        + libraryName(QLatin1String("test")));
+        PLUGIN_DIR_PATH / "testplugin" / libraryName(QLatin1String("test")));
     QVERIFY(ps);
     CppPluginSpec *spec = static_cast<CppPluginSpec *>(ps.value());
-    QCOMPARE(spec->location(), QString(QLatin1String(PLUGIN_DIR) + QLatin1String("/testplugin")));
-    QCOMPARE(spec->filePath(),
-             QString(QLatin1String(PLUGIN_DIR) + QLatin1String("/testplugin/")
-                     + libraryName(QLatin1String("test"))));
+    QCOMPARE(spec->location(), PLUGIN_DIR_PATH / "testplugin");
+    QCOMPARE(spec->filePath(), PLUGIN_DIR_PATH / "testplugin" / libraryName(QLatin1String("test")));
 }
 
 void tst_PluginSpec::resolveDependencies()
@@ -272,8 +271,7 @@ void tst_PluginSpec::resolveDependencies()
 void tst_PluginSpec::loadLibrary()
 {
     Utils::expected_str<PluginSpec *> ps = readCppPluginSpec(
-        QLatin1String(PLUGIN_DIR) + QLatin1String("/testplugin/")
-        + libraryName(QLatin1String("test")));
+        PLUGIN_DIR_PATH / "testplugin" / libraryName(QLatin1String("test")));
 
     QVERIFY(ps);
     CppPluginSpec *spec = static_cast<CppPluginSpec *>(ps.value());
@@ -292,8 +290,7 @@ void tst_PluginSpec::loadLibrary()
 void tst_PluginSpec::initializePlugin()
 {
     Utils::expected_str<PluginSpec *> ps = readCppPluginSpec(
-        QLatin1String(PLUGIN_DIR) + QLatin1String("/testplugin/")
-        + libraryName(QLatin1String("test")));
+        PLUGIN_DIR_PATH / "testplugin" / libraryName(QLatin1String("test")));
     QVERIFY(ps);
     CppPluginSpec *spec = static_cast<CppPluginSpec *>(ps.value());
     QVERIFY(spec->resolveDependencies(QVector<PluginSpec *>()));
@@ -317,8 +314,7 @@ void tst_PluginSpec::initializePlugin()
 void tst_PluginSpec::initializeExtensions()
 {
     Utils::expected_str<PluginSpec *> ps = readCppPluginSpec(
-        QLatin1String(PLUGIN_DIR) + QLatin1String("/testplugin/")
-        + libraryName(QLatin1String("test")));
+        PLUGIN_DIR_PATH / "testplugin" / libraryName(QLatin1String("test")));
     QVERIFY(ps);
     CppPluginSpec *spec = static_cast<CppPluginSpec *>(ps.value());
     QVERIFY(spec->resolveDependencies(QVector<PluginSpec *>()));
diff --git a/tests/manual/pluginview/plugindialog.cpp b/tests/manual/pluginview/plugindialog.cpp
index d1ed1d906d..24232540d9 100644
--- a/tests/manual/pluginview/plugindialog.cpp
+++ b/tests/manual/pluginview/plugindialog.cpp
@@ -114,7 +114,7 @@ int main(int argc, char *argv[])
     QObject::connect(&app, &QCoreApplication::aboutToQuit,
                      &manager, &ExtensionSystem::PluginManager::shutdown);
     PluginDialog dialog;
-    manager.setPluginPaths(QStringList() << app.applicationDirPath() + "/plugins");
+    manager.setPluginPaths({FilePath::fromUserInput(app.applicationDirPath()) / "plugins"});
     manager.loadPlugins();
     dialog.show();
     app.exec();