Add basic vector tiles utils test class, inc. zoom level test

qgis · Nov 22, 2021 · 00627c7 · 00627c7
1 parent be95bd7
commit 00627c7
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diff --git a/tests/src/core/CMakeLists.txt b/tests/src/core/CMakeLists.txt
@@ -192,6 +192,7 @@ set(TESTS
  testqgsvectorlayerjoinbuffer.cpp
  testqgsvectorlayerutils.cpp
  testqgsvectortilelayer.cpp
+ testqgsvectortileutils.cpp
  testqgsvectortilewriter.cpp
  testqgstiles.cpp
  testqgsweakrelation.cpp

diff --git a/tests/src/core/testqgsvectortileutils.cpp b/tests/src/core/testqgsvectortileutils.cpp
@@ -0,0 +1,80 @@
+/***************************************************************************
+  testqgsvectortileutils.cpp
+  --------------------------------------
+  Date                 : November 2021
+  Copyright            : (C) 2021 by Mathieu Pellerin
+  Email                : nirvn dot asia at gmail dot com
+ ***************************************************************************
+ *                                                                         *
+ *   This program is free software; you can redistribute it and/or modify  *
+ *   it under the terms of the GNU General Public License as published by  *
+ *   the Free Software Foundation; either version 2 of the License, or     *
+ *   (at your option) any later version.                                   *
+ *                                                                         *
+ ***************************************************************************/
+
+#include "qgstest.h"
+#include <QObject>
+#include <QString>
+
+//qgis includes...
+#include "qgsapplication.h"
+#include "qgsvectortileutils.h"
+
+/**
+ * \ingroup UnitTests
+ * This is a unit test for the vector tile utils class
+ */
+class TestQgsVectorTileUtils : public QObject
+{
+    Q_OBJECT
+
+  public:
+    TestQgsVectorTileUtils() = default;
+
+  private:
+    QString mReport;
+
+  private slots:
+    void initTestCase();// will be called before the first testfunction is executed.
+    void cleanupTestCase();// will be called after the last testfunction was executed.
+    void init() {} // will be called before each testfunction is executed.
+    void cleanup() {} // will be called after every testfunction.
+
+    void test_scaleToZoomLevel();
+};
+
+
+void TestQgsVectorTileUtils::initTestCase()
+{
+  // init QGIS's paths - true means that all path will be inited from prefix
+  QgsApplication::init();
+  QgsApplication::initQgis();
+  QgsApplication::showSettings();
+  mReport += QLatin1String( "<h1>Vector Tile Utils Tests</h1>\n" );
+}
+
+void TestQgsVectorTileUtils::cleanupTestCase()
+{
+  const QString myReportFile = QDir::tempPath() + "/qgistest.html";
+  QFile myFile( myReportFile );
+  if ( myFile.open( QIODevice::WriteOnly | QIODevice::Append ) )
+  {
+    QTextStream myQTextStream( &myFile );
+    myQTextStream << mReport;
+    myFile.close();
+  }
+
+  QgsApplication::exitQgis();
+}
+
+void TestQgsVectorTileUtils::test_scaleToZoomLevel()
+{
+  // test zoom level logic
+  int zoomLevel = QgsVectorTileUtils::scaleToZoomLevel( 288896, 0, 20 );
+  QCOMPARE( zoomLevel, 10 );
+}
+
+
+QGSTEST_MAIN( TestQgsVectorTileUtils )
+#include "testqgsvectortileutils.moc"