public void ReadVertex_Reads_Vertex_From_Input_And_Maps_Vertex_Label(string inputStr, int expectedVertexNum, string expectedLabel)
{
// if no label or empty string specified, then no label is mapped
//Arrange
NetFileReader reader = new NetFileReader();
reader.KeepNodeLabels = true;
reader.NetworkAdjList = BasicAdjListGenerator.GenerateAdjListWithDataAttribs(0, 0, false, true, true);
var nodeAttribNet = (INodeAttributes)reader.NetworkAdjList;
int colIndex = nodeAttribNet.NodeData.AddColumn("Node labels", typeof(string), "");
reader.NodeLabelAttribColIndex = 0;
reader.NetworkAdjList.CreateNode(); // create the node AFTER the data col is added.
//Act
reader.ReadVertex(inputStr);
//Assert
Assert.Equal(1, reader.Network.NodeCount);
int mappedIndex = reader.VertexNumberMap[expectedVertexNum];
INode node = reader.NetworkAdjList.Nodes[mappedIndex];
string mappedLabel = ((INodeAttributes)reader.NetworkAdjList).NodeData.GetValue<string>(node, 0);
Assert.Equal(expectedLabel, mappedLabel);
}
public void ReadVertex_Reads_Vertex_From_Input_But_Vertex_Labels_Are_Not_Mapped_To_Node_Map_When_No_Label_Specified(string inputStr, int expectedVertexNum, string expectedLabel)
{
// if no label or empty string specified, then no label is mapped
//Arrange
NetFileReader reader = new NetFileReader();
reader.KeepNodeLabels = true; // if this flag is true, then the map will be created even if no labels are read in.
reader.NetworkAdjList = BasicAdjListGenerator.GenerateAdjListWithDataAttribs(0, 0, false, true, true); // num nodes created when the *Vertices header read
var nodeAttribNet = (INodeAttributes)reader.NetworkAdjList;
int colIndex = nodeAttribNet.NodeData.AddColumn("Node labels", typeof(string), "");
reader.NetworkAdjList.CreateNode(); // create the node AFTER the data col is added.
//Act
reader.ReadVertex(inputStr);
//Assert
int mappedIndex = reader.VertexNumberMap[expectedVertexNum];
INode node = reader.NetworkAdjList.Nodes[mappedIndex];
var nodeAttribs = (INodeAttributes) reader.NetworkAdjList;
string mappedLabel = nodeAttribs.NodeData.GetValue<string>(node, colIndex);
string defaultVal = (((INodeAttributes) reader.NetworkAdjList).NodeData as DataTable).Columns[0].DefaultValue as string;
Assert.Equal(defaultVal, mappedLabel);
}
public void ReadVertex_Reads_Vertex_From_Input_And_Maps_Vertex_Number_To_Node_Index(string inputStr, int expectedVertexNum, string expectedLabel)
{
// if no label or empty string specified, then no label is mapped
//Arrange
NetFileReader reader = new NetFileReader();
reader.KeepNodeLabels = false; // otherwise we have to dummy the node map
reader.NetworkAdjList = BasicAdjListGenerator.GenerateAdjListWithDataAttribs(1, 0, false, true, true); // num nodes created when the *Vertices header read
//Act
reader.ReadVertex(inputStr);
//Assert
Assert.Equal(1, reader.Network.NodeCount);
bool vertexNumIsMapped = reader.VertexNumberMap.ContainsKey(expectedVertexNum);
Assert.True(vertexNumIsMapped);
int mappedIndex = reader.VertexNumberMap[expectedVertexNum];
INode node = reader.NetworkAdjList.Nodes[mappedIndex];
Assert.NotNull(node);
Assert.Equal(mappedIndex, node.Index);
}
