QDoc: Add basic unit test for Config

Starting point for unit testing Config.

Fixes: QTBUG-82672
Change-Id: If9e6300d3388173a08545609aca74c8e6a588041
Reviewed-by: Mårten Nordheim <marten.nordheim@qt.io>

3 files changed, 102 insertions, 0 deletions

diff --git a/tests/auto/qdoc/config/config.pro b/tests/auto/qdoc/config/config.pro
new file mode 100644
index 000000000..b6cb9a32d
--- /dev/null
+++ b/tests/auto/qdoc/config/config.pro
@@ -0,0 +1,16 @@
+CONFIG += testcase
+QT = core testlib
+TARGET = tst_config
+INCLUDEPATH += $$PWD/../../../../src/qdoc
+
+HEADERS += \
+    $$PWD/../../../../src/qdoc/config.h \
+    $$PWD/../../../../src/qdoc/location.h \
+    $$PWD/../../../../src/qdoc/qdoccommandlineparser.h \
+    $$PWD/../../../../src/qdoc/loggingcategory.h
+
+SOURCES += \
+    tst_config.cpp \
+    $$PWD/../../../../src/qdoc/config.cpp \
+    $$PWD/../../../../src/qdoc/location.cpp \
+    $$PWD/../../../../src/qdoc/qdoccommandlineparser.cpp
diff --git a/tests/auto/qdoc/config/tst_config.cpp b/tests/auto/qdoc/config/tst_config.cpp
new file mode 100644
index 000000000..1e9383fb9
--- /dev/null
+++ b/tests/auto/qdoc/config/tst_config.cpp
@@ -0,0 +1,85 @@
+/****************************************************************************
+**
+** Copyright (C) 2020 The Qt Company Ltd.
+** Contact: https://www.qt.io/licensing/
+**
+** This file is part of the tools applications of the Qt Toolkit.
+**
+** $QT_BEGIN_LICENSE:GPL-EXCEPT$
+** 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.
+**
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+#include "config.h"
+
+#include <QtCore/qhash.h>
+#include <QtCore/qstringlist.h>
+#include <QtTest/QtTest>
+
+QT_BEGIN_NAMESPACE
+Q_LOGGING_CATEGORY(lcQdoc, "qt.test")
+QT_END_NAMESPACE
+
+class tst_Config : public QObject
+{
+    Q_OBJECT
+
+private slots:
+    void classMembersInitializeToFalseOrEmpty();
+    void includePathsFromCommandLine();
+};
+
+void tst_Config::classMembersInitializeToFalseOrEmpty()
+{
+    QStringList commandLineArgs = { QStringLiteral("./qdoc") };
+
+    Config::instance().init("QDoc Test", commandLineArgs);
+    auto &config = Config::instance();
+    QCOMPARE(config.singleExec(), false);
+
+    QVERIFY(config.defines().isEmpty());
+    QVERIFY(config.includePaths().isEmpty());
+    QVERIFY(config.dependModules().isEmpty());
+    QVERIFY(config.indexDirs().isEmpty());
+    QVERIFY(config.currentDir().isEmpty());
+    QVERIFY(config.previousCurrentDir().isEmpty());
+}
+
+void tst_Config::includePathsFromCommandLine()
+{
+    const auto mockIncludePath1 = QString("-I" + QDir().absoluteFilePath("/qt5/qtdoc/doc/."));
+    const auto mockIncludePath2 = QString("-I" + QDir().absoluteFilePath("/qt5/qtbase/mkspecs/linux-g++"));
+    const QStringList commandLineArgs = {
+        QStringLiteral("./qdoc"),
+        mockIncludePath1,
+        mockIncludePath2
+    };
+
+    Config::instance().init("QDoc Test", commandLineArgs);
+    auto &config = Config::instance();
+
+    const QStringList expected = { mockIncludePath1, mockIncludePath2 };
+    const QStringList actual = config.includePaths();
+
+    QCOMPARE(actual, expected);
+}
+
+QTEST_APPLESS_MAIN(tst_Config)
+
+#include "tst_config.moc"
diff --git a/tests/auto/qdoc/qdoc.pro b/tests/auto/qdoc/qdoc.pro
index 97117dc6f..d2afba2bf 100644
--- a/tests/auto/qdoc/qdoc.pro
+++ b/tests/auto/qdoc/qdoc.pro
@@ -1,4 +1,5 @@
 TEMPLATE = subdirs
 
 SUBDIRS = \
+    config \
     generatedoutput