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Unit tests for utility methods from qgsmaplayerlistutils.h
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wonder-sk committed Dec 11, 2016
1 parent 1580f32 commit 04f8704
Showing 1 changed file with 48 additions and 0 deletions.
48 changes: 48 additions & 0 deletions tests/src/core/testqgsmapsettings.cpp
Expand Up @@ -23,6 +23,8 @@
#include "qgspoint.h"
#include "qgslogger.h"
#include "qgsapplication.h"
#include "qgsmaplayerlistutils.h"
#include "qgsvectorlayer.h"

class TestQgsMapSettings: public QObject
{
Expand All @@ -32,6 +34,7 @@ class TestQgsMapSettings: public QObject
void visibleExtent();
void mapUnitsPerPixel();
void visiblePolygon();
void testMapLayerListUtils();
private:
QString toString( const QPolygonF& p, int decimalPlaces = 2 ) const;
};
Expand Down Expand Up @@ -146,5 +149,50 @@ void TestQgsMapSettings::visiblePolygon()
QString( "32.32 28.03,103.03 -42.67,67.67 -78.03,-3.03 -7.32" ) );
}

void TestQgsMapSettings::testMapLayerListUtils()
{
QgsVectorLayer* vlA = new QgsVectorLayer( "Point", "a", "memory" );
QgsVectorLayer* vlB = new QgsVectorLayer( "Point", "b", "memory" );

QList<QgsMapLayer*> listRawSource;
listRawSource << vlA << vlB;

QList< QPointer<QgsMapLayer> > listQPointer = _qgis_listRawToQPointer( listRawSource );

QCOMPARE( listQPointer.count(), 2 );
QCOMPARE( listQPointer[0].data(), vlA );
QCOMPARE( listQPointer[1].data(), vlB );

QList<QgsMapLayer*> listRaw = _qgis_listQPointerToRaw( listQPointer );

QCOMPARE( listRaw.count(), 2 );
QCOMPARE( listRaw[0], vlA );
QCOMPARE( listRaw[1], vlB );

QStringList listIDs = _qgis_listQPointerToIDs( listQPointer );

QCOMPARE( listIDs.count(), 2 );
QCOMPARE( listIDs[0], vlA->id() );
QCOMPARE( listIDs[1], vlB->id() );

// now delete one layer!
// QPointer to vlA must get invalidated
delete vlA;

QCOMPARE( listQPointer.count(), 2 ); // still two items but one is invalid

QList<QgsMapLayer*> listRaw2 = _qgis_listQPointerToRaw( listQPointer );

QCOMPARE( listRaw2.count(), 1 );
QCOMPARE( listRaw2[0], vlB );

QStringList listIDs2 = _qgis_listQPointerToIDs( listQPointer );

QCOMPARE( listIDs2.count(), 1 );
QCOMPARE( listIDs2[0], vlB->id() );

delete vlB;
}

QTEST_MAIN( TestQgsMapSettings )
#include "testqgsmapsettings.moc"

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