Add unit tests, standardise method names

Author: nyalldawson

python/core/auto_generated/layout/qgslayoutitemmapgrid.sip.in

@@ -752,22 +752,22 @@ framePenSize method.
 .. seealso:: :py:func:`setFrameWidth`
 %End
 
-    void setGridFrameMargin( const double margin );
+    void setFrameMargin( const double margin );
 %Docstring
 Sets the grid frame margin (in layout units).
 This property controls distance between the map frame and the grid frame.
 
-.. seealso:: :py:func:`gridFrameMargin`
+.. seealso:: :py:func:`frameMargin`
 
 .. versionadded:: 3.6
 %End
 
-    double gridFrameMargin() const;
+    double frameMargin() const;
 %Docstring
 Sets the grid frame Margin (in layout units).
 This property controls distance between the map frame and the grid frame.
 
-.. seealso:: :py:func:`setGridFrameMargin`
+.. seealso:: :py:func:`setFrameMargin`
 
 .. versionadded:: 3.6
 %End

src/app/layout/qgslayoutmapgridwidget.cpp

@@ -476,7 +476,7 @@ void QgsLayoutMapGridWidget::setGridItems()
   mOffsetYSpinBox->setValue( mMapGrid->offsetY() );
   mCrossWidthSpinBox->setValue( mMapGrid->crossLength() );
   mFrameWidthSpinBox->setValue( mMapGrid->frameWidth() );
-  mGridFrameMarginSpinBox->setValue( mMapGrid->gridFrameMargin() );
+  mGridFrameMarginSpinBox->setValue( mMapGrid->frameMargin() );
   mGridFramePenSizeSpinBox->setValue( mMapGrid->framePenSize() );
   mGridFramePenColorButton->setColor( mMapGrid->framePenColor() );
   mGridFrameFill1ColorButton->setColor( mMapGrid->frameFillColor1() );
@@ -533,7 +533,7 @@ void QgsLayoutMapGridWidget::setGridItems()
 
   //grid frame
   mFrameWidthSpinBox->setValue( mMapGrid->frameWidth() );
-  mGridFrameMarginSpinBox->setValue( mMapGrid->gridFrameMargin() );
+  mGridFrameMarginSpinBox->setValue( mMapGrid->frameMargin() );
   QgsLayoutItemMapGrid::FrameStyle gridFrameStyle = mMapGrid->frameStyle();
   mFrameStyleComboBox->setCurrentIndex( mFrameStyleComboBox->findData( gridFrameStyle ) );
   switch ( gridFrameStyle )
@@ -709,7 +709,7 @@ void QgsLayoutMapGridWidget::mGridFrameMarginSpinBox_valueChanged( double val )
   }
 
   mMap->beginCommand( tr( "Change Grid Frame Margin" ) );
-  mMapGrid->setGridFrameMargin( val );
+  mMapGrid->setFrameMargin( val );
   mMap->updateBoundingRect();
   mMap->update();
   mMap->endCommand();

src/core/layout/qgslayoutitemmapgrid.h

@@ -729,18 +729,18 @@ class CORE_EXPORT QgsLayoutItemMapGrid : public QgsLayoutItemMapItem
     /**
      * Sets the grid frame margin (in layout units).
      * This property controls distance between the map frame and the grid frame.
-     * \see gridFrameMargin()
+     * \see frameMargin()
      * \since QGIS 3.6
      */
-    void setGridFrameMargin( const double margin ) { mGridFrameMargin = margin; }
+    void setFrameMargin( const double margin ) { mGridFrameMargin = margin; }
 
     /**
      * Sets the grid frame Margin (in layout units).
      * This property controls distance between the map frame and the grid frame.
-     * \see setGridFrameMargin()
+     * \see setFrameMargin()
      * \since QGIS 3.6
      */
-    double gridFrameMargin() const { return mGridFrameMargin; }
+    double frameMargin() const { return mGridFrameMargin; }
 
     /**
      * Sets the \a width of the stroke drawn in the grid frame.