public void ReadEdgePropertyFields_Creates_An_Edge(int index, int nodeCount, string[] dataFields, int[] nodeIndices, string[] dataFieldNames, Type[] dataTypes, int[] srcFieldIndices)
{
// simulate initialized network
var net = Blob.TestSupport.Network.BasicAdjListGenerator.GenerateAdjListWithDataAttribs(nodeCount, 0, false, false, true);
var builder = new Blob.TestSupport.Network.DataAttributesBuilder();
builder.AddColumns((IEdgeAttributes)net, dataTypes, dataFieldNames, false);
// get actual nodes
INode nodeA = net.Nodes[nodeIndices[0]];
INode nodeB = net.Nodes[nodeIndices[1]];
var reader = new VnaAdjListReader();
reader.State = VnaFileSection.EdgeData;
// simulate already the populated NodeKeyToNodeIndexMap
reader.NodeKeyToNodeIndexMap.Add(dataFields[0], nodeA);
reader.NodeKeyToNodeIndexMap.Add(dataFields[1], nodeB);
// simulate the list of HeaderField objects that have already been created in 1st pass
for (int i = 0; i < dataFields.Length;i++ )
reader.EdgeDataHeaders.Add(new HeaderField("f-" + i.ToString(), VnaFileSection.EdgeData, i, null) { AttribColumnIndex = i });
Assert.Equal(0, net.EdgeCount);
reader.ReadEdgeDataFields(dataFields, net, reader.EdgeDataHeaders);
Assert.Equal(1, net.EdgeCount);
IEdge edge = net.Edges[0];
Assert.Same(nodeA, edge.SourceNode);
Assert.Same(nodeB, edge.DestinationNode);
}
public void ReadEdgePropertyFields_Reads_Fields_Into_EdgeAttribs_From_StarEdgeData_Section(int index, int nodeCount, string[] dataFields, int[] nodeIndices, string[] dataFieldNames, Type[] dataTypes, int[] srcFieldIndices)
{
// simulate initialized network
var net = Blob.TestSupport.Network.BasicAdjListGenerator.GenerateAdjListWithDataAttribs(nodeCount, 0, false, true, true);
var builder = new Blob.TestSupport.Network.DataAttributesBuilder();
builder.AddColumns((IEdgeAttributes)net, dataTypes, dataFieldNames, false);
var reader = new VnaAdjListReader();
reader.State = VnaFileSection.EdgeData;
// simulate already the populated NodeKeyToNodeIndexMap
INode nodeA = net.Nodes[nodeIndices[0]];
INode nodeB = net.Nodes[nodeIndices[1]];
reader.NodeKeyToNodeIndexMap.Add(dataFields[0], nodeA);
reader.NodeKeyToNodeIndexMap.Add(dataFields[1], nodeB);
// simulate the list of HeaderField objects that have already been created in 1st pass
for (int i = 0; i < dataFields.Length; i++)
reader.EdgeDataHeaders.Add(new HeaderField("f-" + i.ToString(), VnaFileSection.EdgeData, i, null) { AttribColumnIndex = i });
Assert.Equal(0, net.EdgeCount);
reader.ReadEdgeDataFields(dataFields, net, reader.EdgeDataHeaders);
IEdge owner = net.Edges[0];
for (int i = 2; i < dataTypes.Length; i++)
{
if (dataTypes[i] == typeof(string))
{
var val = net.EdgeData.GetValue<string>(owner, i);
Assert.Equal(dataFields[i], val);
}
else if (dataTypes[i] == typeof(int))
{
var val = net.EdgeData.GetValue<int>(owner, i);
Assert.Equal(Convert.ToInt32(dataFields[i]), val);
}
else if (dataTypes[i] == typeof(float))
{
var val = net.EdgeData.GetValue<float>(owner, i);
Assert.Equal(Convert.ToSingle(dataFields[i]), val);
}
else if (dataTypes[i] == typeof(double))
{
var val = net.EdgeData.GetValue<double>(owner, i);
Assert.Equal(Convert.ToDouble(dataFields[i]), val);
}
else
{
Assert.True(false); //force a fail
}
}
}
public void ReadEdgeDataFields_Throws_If_Not_In_Required_State(VnaFileSection state)
{
var reader = new VnaAdjListReader();
reader.State = state;
var ex = Assert.Throws<InvalidOperationException>(() => reader.ReadEdgeDataFields(new string[] { "X" }, null, null));
}