/// <summary>
/// Tests execution for multiple graphs.
/// </summary>
/// <param name="metadataPreservation">Indicates whether the metadata should be preserved.</param>
private void TestExecuteForGraphs(Boolean metadataPreservation)
{
// empty graph
IGeometryGraph sourceGraph = new GeometryFactory(ProjectedCoordinateReferenceSystems.HD72_EOV).CreateGraph();
IDictionary <OperationParameter, Object> parameters = new Dictionary <OperationParameter, Object>();
parameters.Add(ReferenceOperationParameters.TargetReferenceSystem, ProjectedCoordinateReferenceSystems.WGS84_WorldMercator);
parameters.Add(CommonOperationParameters.MetadataPreservation, metadataPreservation);
GraphReferenceTransformation transformation = new GraphReferenceTransformation(sourceGraph, parameters);
transformation.Execute();
IGeometryGraph resultGraph = transformation.Result as IGeometryGraph;
Assert.AreEqual(0, resultGraph.VertexCount);
Assert.AreEqual(0, resultGraph.EdgeCount);
Assert.AreEqual(sourceGraph.Metadata, resultGraph.Metadata);
// graph with points and edges
Coordinate[] coordinates = new Coordinate[] { new Coordinate(10, 10), new Coordinate(20, 20), new Coordinate(30, 30) };
sourceGraph = new GeometryFactory(ProjectedCoordinateReferenceSystems.HD72_EOV).CreateGraph();
IGraphVertex[] vertices = coordinates.Select(coordinate => sourceGraph.AddVertex(coordinate)).ToArray();
sourceGraph.AddEdge(vertices[0], vertices[1]);
sourceGraph.AddEdge(vertices[1], vertices[2]);
transformation = new GraphReferenceTransformation(sourceGraph, parameters);
transformation.Execute();
resultGraph = transformation.Result as IGeometryGraph;
Assert.AreEqual(3, resultGraph.VertexCount);
Assert.AreEqual(2, resultGraph.EdgeCount);
Assert.AreEqual(1, resultGraph.OutEdges(resultGraph.Vertices[0]).Count);
Assert.AreEqual(resultGraph.Vertices[1], resultGraph.OutEdges(resultGraph.Vertices[0]).First().Target);
Assert.AreEqual(1, resultGraph.OutEdges(resultGraph.Vertices[1]).Count);
Assert.AreEqual(resultGraph.Vertices[2], resultGraph.OutEdges(resultGraph.Vertices[1]).First().Target);
for (Int32 vertexIndex = 0; vertexIndex < resultGraph.VertexCount; vertexIndex++)
{
GeoCoordinate sourceGeoCoordinate = ProjectedCoordinateReferenceSystems.HD72_EOV.Projection.Reverse(coordinates[vertexIndex]);
GeoCoordinate expectedGeoCoordinate = GeographicTransformations.HD72_WGS84_V1.Forward(sourceGeoCoordinate);
Coordinate expectedCoordinate = ProjectedCoordinateReferenceSystems.WGS84_WorldMercator.Projection.Forward(expectedGeoCoordinate);
Assert.AreEqual(expectedCoordinate, resultGraph.Vertices[vertexIndex].Coordinate);
}
// not supported geometry
Mock <IGeometry> geometryMock = new Mock <IGeometry>(MockBehavior.Loose);
geometryMock.Setup(geometry => geometry.Factory).Returns(() => new GeometryFactory(ProjectedCoordinateReferenceSystems.HD72_EOV));
geometryMock.Setup(geometry => geometry.ReferenceSystem).Returns(() => ProjectedCoordinateReferenceSystems.HD72_EOV);
transformation = new GraphReferenceTransformation(geometryMock.Object, parameters);
Assert.Throws <InvalidOperationException>(() => transformation.Execute());
}
