TestLoadGraphFromStream4()
{
// Nested graph, using sample XML from the GraphML Primer.
// GraphMLGraphAdapter should, according to the Primer, "ignore nodes
// which are not contained in the top-level graph and to ignore edges
// which have do not have both endpoints in the top-level graph."
const String XmlString =
"<?xml version=\"1.0\" encoding=\"UTF-8\"?>"
+ "<graphml xmlns=\"http://graphml.graphdrawing.org/xmlns\" xmlns:xsi=\"http://www.w3.org/2001/XMLSchema-instance\""
+ " xsi:schemaLocation=\"http://graphml.graphdrawing.org/xmlns http://graphml.graphdrawing.org/xmlns/1.0/graphml.xsd\">"
+ " <graph id=\"G\" edgedefault=\"undirected\">"
+ " <node id=\"n0\"/>"
+ " <node id=\"n1\"/>"
+ " <node id=\"n2\"/>"
+ " <node id=\"n3\"/>"
+ " <node id=\"n4\"/>"
+ " <node id=\"n5\">"
+ " <graph id=\"n5:\" edgedefault=\"undirected\">"
+ " <node id=\"n5::n0\"/>"
+ " <node id=\"n5::n1\"/>"
+ " <node id=\"n5::n2\"/>"
+ " <edge id=\"e0\" source=\"n5::n0\" target=\"n5::n2\"/>"
+ " <edge id=\"e1\" source=\"n5::n1\" target=\"n5::n2\"/>"
+ " </graph>"
+ " </node>"
+ " <node id=\"n6\">"
+ " <graph id=\"n6:\" edgedefault=\"undirected\">"
+ " <node id=\"n6::n0\">"
+ " <graph id=\"n6::n0:\" edgedefault=\"undirected\">"
+ " <node id=\"n6::n0::n0\"/>"
+ " </graph>"
+ " </node>"
+ " <node id=\"n6::n1\"/>"
+ " <node id=\"n6::n2\"/>"
+ " <edge id=\"e10\" source=\"n6::n1\" target=\"n6::n0::n0\"/>"
+ " <edge id=\"e11\" source=\"n6::n1\" target=\"n6::n2\"/>"
+ " </graph>"
+ " </node>"
+ " <edge id=\"e2\" source=\"n5::n2\" target=\"n0\"/>"
+ " <edge id=\"e3\" source=\"n0\" target=\"n2\"/>"
+ " <edge id=\"e4\" source=\"n0\" target=\"n1\"/>"
+ " <edge id=\"e5\" source=\"n1\" target=\"n3\"/>"
+ " <edge id=\"e6\" source=\"n3\" target=\"n2\"/>"
+ " <edge id=\"e7\" source=\"n2\" target=\"n4\"/>"
+ " <edge id=\"e8\" source=\"n3\" target=\"n6::n1\"/>"
+ " <edge id=\"e9\" source=\"n6::n1\" target=\"n4\"/>"
+ " </graph>"
+ "</graphml>"
;
Stream oXmlStream = new StringStream(XmlString);
IGraph oGraph = m_oGraphAdapter.LoadGraphFromStream(oXmlStream);
Assert.AreEqual(GraphDirectedness.Undirected, oGraph.Directedness);
IVertexCollection oVertices = oGraph.Vertices;
IEdgeCollection oEdges = oGraph.Edges;
Boolean bFound;
IVertex oVertex;
Assert.AreEqual(7, oVertices.Count);
bFound = oVertices.Find("n0", out oVertex);
Assert.IsTrue(bFound);
bFound = oVertices.Find("n1", out oVertex);
Assert.IsTrue(bFound);
bFound = oVertices.Find("n2", out oVertex);
Assert.IsTrue(bFound);
bFound = oVertices.Find("n3", out oVertex);
Assert.IsTrue(bFound);
bFound = oVertices.Find("n4", out oVertex);
Assert.IsTrue(bFound);
bFound = oVertices.Find("n5", out oVertex);
Assert.IsTrue(bFound);
bFound = oVertices.Find("n6", out oVertex);
Assert.IsTrue(bFound);
IEdge oEdge;
bFound = oEdges.Find("e3", out oEdge);
Assert.IsTrue(bFound);
Assert.AreEqual("n0", oEdge.Vertices[0].Name);
Assert.AreEqual("n2", oEdge.Vertices[1].Name);
bFound = oEdges.Find("e4", out oEdge);
Assert.IsTrue(bFound);
Assert.AreEqual("n0", oEdge.Vertices[0].Name);
Assert.AreEqual("n1", oEdge.Vertices[1].Name);
bFound = oEdges.Find("e5", out oEdge);
Assert.IsTrue(bFound);
Assert.AreEqual("n1", oEdge.Vertices[0].Name);
Assert.AreEqual("n3", oEdge.Vertices[1].Name);
bFound = oEdges.Find("e6", out oEdge);
Assert.IsTrue(bFound);
Assert.AreEqual("n3", oEdge.Vertices[0].Name);
Assert.AreEqual("n2", oEdge.Vertices[1].Name);
Assert.IsFalse(oEdge.ContainsKey("weight"));
bFound = oEdges.Find("e7", out oEdge);
Assert.IsTrue(bFound);
Assert.AreEqual("n2", oEdge.Vertices[0].Name);
Assert.AreEqual("n4", oEdge.Vertices[1].Name);
}
TestLoadGraphFromStream2()
{
// Overall test, using sample XML from the GraphML Primer.
const String XmlString =
"<?xml version=\"1.0\" encoding=\"UTF-8\"?>"
+ "<graphml xmlns=\"http://graphml.graphdrawing.org/xmlns\" "
+ "xmlns:xsi=\"http://www.w3.org/2001/XMLSchema-instance\" "
+ "xsi:schemaLocation=\"http://graphml.graphdrawing.org/xmlns "
+ "http://graphml.graphdrawing.org/xmlns/1.0/graphml.xsd\">"
+ "<key id=\"d0\" for=\"node\" attr.name=\"color\" attr.type=\"string\">"
+ "<default>yellow</default>"
+ "</key>"
+ "<key id=\"d1\" for=\"edge\" attr.name=\"weight\" attr.type=\"double\"/>"
+ "<graph id=\"G\" edgedefault=\"undirected\">"
+ "<node id=\"n0\">"
+ "<data key=\"d0\">green</data>"
+ "</node>"
+ "<node id=\"n1\"/>"
+ "<node id=\"n2\">"
+ "<data key=\"d0\">blue</data>"
+ "</node>"
+ "<node id=\"n3\">"
+ "<data key=\"d0\">red</data>"
+ "</node>"
+ "<node id=\"n4\"/>"
+ "<node id=\"n5\">"
+ "<data key=\"d0\">turquoise</data>"
+ "</node>"
+ "<edge id=\"e0\" source=\"n0\" target=\"n2\">"
+ "<data key=\"d1\">1.0</data>"
+ "</edge>"
+ "<edge id=\"e1\" source=\"n0\" target=\"n1\">"
+ "<data key=\"d1\">1.0</data>"
+ "</edge>"
+ "<edge id=\"e2\" source=\"n1\" target=\"n3\">"
+ "<data key=\"d1\">2.0</data>"
+ "</edge>"
+ "<edge id=\"e3\" source=\"n3\" target=\"n2\"/>"
+ "<edge id=\"e4\" source=\"n2\" target=\"n4\"/>"
+ "<edge id=\"e5\" source=\"n3\" target=\"n5\"/>"
+ "<edge id=\"e6\" source=\"n5\" target=\"n4\">"
+ "<data key=\"d1\">1.1</data>"
+ "</edge>"
+ "</graph>"
+ "</graphml>"
;
Stream oXmlStream = new StringStream(XmlString);
IGraph oGraph = m_oGraphAdapter.LoadGraphFromStream(oXmlStream);
Assert.AreEqual(GraphDirectedness.Undirected, oGraph.Directedness);
IVertexCollection oVertices = oGraph.Vertices;
IEdgeCollection oEdges = oGraph.Edges;
Boolean bFound;
IVertex oVertex;
String sColor;
Assert.AreEqual(6, oVertices.Count);
bFound = oVertices.Find("n0", out oVertex);
Assert.IsTrue(bFound);
sColor = (String)oVertex.GetRequiredValue("color", typeof(String));
Assert.AreEqual("green", sColor);
bFound = oVertices.Find("n1", out oVertex);
Assert.IsTrue(bFound);
sColor = (String)oVertex.GetRequiredValue("color", typeof(String));
Assert.AreEqual("yellow", sColor);
bFound = oVertices.Find("n2", out oVertex);
Assert.IsTrue(bFound);
sColor = (String)oVertex.GetRequiredValue("color", typeof(String));
Assert.AreEqual("blue", sColor);
bFound = oVertices.Find("n3", out oVertex);
Assert.IsTrue(bFound);
sColor = (String)oVertex.GetRequiredValue("color", typeof(String));
Assert.AreEqual("red", sColor);
bFound = oVertices.Find("n4", out oVertex);
Assert.IsTrue(bFound);
sColor = (String)oVertex.GetRequiredValue("color", typeof(String));
Assert.AreEqual("yellow", sColor);
bFound = oVertices.Find("n5", out oVertex);
Assert.IsTrue(bFound);
sColor = (String)oVertex.GetRequiredValue("color", typeof(String));
Assert.AreEqual("turquoise", sColor);
IEdge oEdge;
Double dWeight;
bFound = oEdges.Find("e0", out oEdge);
Assert.IsTrue(bFound);
Assert.AreEqual("n0", oEdge.Vertices[0].Name);
Assert.AreEqual("n2", oEdge.Vertices[1].Name);
dWeight = (Double)oEdge.GetRequiredValue("weight", typeof(Double));
Assert.AreEqual(1.0, dWeight);
bFound = oEdges.Find("e1", out oEdge);
Assert.IsTrue(bFound);
Assert.AreEqual("n0", oEdge.Vertices[0].Name);
Assert.AreEqual("n1", oEdge.Vertices[1].Name);
dWeight = (Double)oEdge.GetRequiredValue("weight", typeof(Double));
Assert.AreEqual(1.0, dWeight);
bFound = oEdges.Find("e2", out oEdge);
Assert.IsTrue(bFound);
Assert.AreEqual("n1", oEdge.Vertices[0].Name);
Assert.AreEqual("n3", oEdge.Vertices[1].Name);
dWeight = (Double)oEdge.GetRequiredValue("weight", typeof(Double));
Assert.AreEqual(2.0, dWeight);
bFound = oEdges.Find("e3", out oEdge);
Assert.IsTrue(bFound);
Assert.AreEqual("n3", oEdge.Vertices[0].Name);
Assert.AreEqual("n2", oEdge.Vertices[1].Name);
Assert.IsFalse(oEdge.ContainsKey("weight"));
bFound = oEdges.Find("e4", out oEdge);
Assert.IsTrue(bFound);
Assert.AreEqual("n2", oEdge.Vertices[0].Name);
Assert.AreEqual("n4", oEdge.Vertices[1].Name);
Assert.IsFalse(oEdge.ContainsKey("weight"));
bFound = oEdges.Find("e5", out oEdge);
Assert.IsTrue(bFound);
Assert.AreEqual("n3", oEdge.Vertices[0].Name);
Assert.AreEqual("n5", oEdge.Vertices[1].Name);
Assert.IsFalse(oEdge.ContainsKey("weight"));
bFound = oEdges.Find("e6", out oEdge);
Assert.IsTrue(bFound);
Assert.AreEqual("n5", oEdge.Vertices[0].Name);
Assert.AreEqual("n4", oEdge.Vertices[1].Name);
dWeight = (Double)oEdge.GetRequiredValue("weight", typeof(Double));
Assert.AreEqual(1.1, dWeight);
}
TestLoadGraphFromStream3()
{
// Overall test, using sample XML from the GraphML Primer, but with
// missing attr.name and attr.type attributes, which are optional.
//
// Also, include key nodes with "for" attributes not used by NodeXL.
// The for="graphml" is actually illegal, but was found in a GraphML
// file created by a program called yED.
//
// Also, include a data node with no inner text, which was also in the
// yED file.
const String XmlString =
"<?xml version=\"1.0\" encoding=\"UTF-8\"?>"
+ "<graphml xmlns=\"http://graphml.graphdrawing.org/xmlns\" "
+ "xmlns:xsi=\"http://www.w3.org/2001/XMLSchema-instance\" "
+ "xsi:schemaLocation=\"http://graphml.graphdrawing.org/xmlns "
+ "http://graphml.graphdrawing.org/xmlns/1.0/graphml.xsd\">"
+ "<key id=\"d0\" for=\"node\">"
+ "<default>yellow</default>"
+ "</key>"
+ "<key id=\"d1\" for=\"edge\"/>"
+ "<key id=\"dSkip1\" for=\"graph\"/>"
+ "<key id=\"dSkip2\" for=\"all\"/>"
+ "<key id=\"dIllegal\" for=\"graphml\"/>"
+ "<graph id=\"G\" edgedefault=\"undirected\">"
+ "<node id=\"n0\">"
+ "<data key=\"d0\">green</data>"
+ "</node>"
+ "<node id=\"n1\"/>"
+ "<node id=\"n2\">"
+ "<data key=\"d0\">blue</data>"
+ "</node>"
+ "<node id=\"n3\">"
+ "<data key=\"d0\">red</data>"
+ "</node>"
+ "<node id=\"n4\">"
+ "<data key=\"d0\" />"
+ "</node>"
+ "<node id=\"n5\">"
+ "<data key=\"d0\">turquoise</data>"
+ "</node>"
+ "<edge id=\"e0\" source=\"n0\" target=\"n2\">"
+ "<data key=\"d1\">1.0</data>"
+ "</edge>"
+ "<edge id=\"e1\" source=\"n0\" target=\"n1\">"
+ "<data key=\"d1\">1.0</data>"
+ "</edge>"
+ "<edge id=\"e2\" source=\"n1\" target=\"n3\">"
+ "<data key=\"d1\">2.0</data>"
+ "</edge>"
+ "<edge id=\"e3\" source=\"n3\" target=\"n2\"/>"
+ "<edge id=\"e4\" source=\"n2\" target=\"n4\"/>"
+ "<edge id=\"e5\" source=\"n3\" target=\"n5\"/>"
+ "<edge id=\"e6\" source=\"n5\" target=\"n4\">"
+ "<data key=\"d1\">1.1</data>"
+ "</edge>"
+ "</graph>"
+ "</graphml>"
;
Stream oXmlStream = new StringStream(XmlString);
IGraph oGraph = m_oGraphAdapter.LoadGraphFromStream(oXmlStream);
Assert.AreEqual(GraphDirectedness.Undirected, oGraph.Directedness);
IVertexCollection oVertices = oGraph.Vertices;
IEdgeCollection oEdges = oGraph.Edges;
Boolean bFound;
IVertex oVertex;
String sColor;
Assert.AreEqual(6, oVertices.Count);
bFound = oVertices.Find("n0", out oVertex);
Assert.IsTrue(bFound);
sColor = (String)oVertex.GetRequiredValue("d0", typeof(String));
Assert.AreEqual("green", sColor);
bFound = oVertices.Find("n1", out oVertex);
Assert.IsTrue(bFound);
sColor = (String)oVertex.GetRequiredValue("d0", typeof(String));
Assert.AreEqual("yellow", sColor);
bFound = oVertices.Find("n2", out oVertex);
Assert.IsTrue(bFound);
sColor = (String)oVertex.GetRequiredValue("d0", typeof(String));
Assert.AreEqual("blue", sColor);
bFound = oVertices.Find("n3", out oVertex);
Assert.IsTrue(bFound);
sColor = (String)oVertex.GetRequiredValue("d0", typeof(String));
Assert.AreEqual("red", sColor);
bFound = oVertices.Find("n4", out oVertex);
Assert.IsTrue(bFound);
sColor = (String)oVertex.GetRequiredValue("d0", typeof(String));
Assert.AreEqual(String.Empty, sColor);
bFound = oVertices.Find("n5", out oVertex);
Assert.IsTrue(bFound);
sColor = (String)oVertex.GetRequiredValue("d0", typeof(String));
Assert.AreEqual("turquoise", sColor);
IEdge oEdge;
String sWeight;
bFound = oEdges.Find("e0", out oEdge);
Assert.IsTrue(bFound);
Assert.AreEqual("n0", oEdge.Vertices[0].Name);
Assert.AreEqual("n2", oEdge.Vertices[1].Name);
sWeight = (String)oEdge.GetRequiredValue("d1", typeof(String));
Assert.AreEqual("1.0", sWeight);
bFound = oEdges.Find("e1", out oEdge);
Assert.IsTrue(bFound);
Assert.AreEqual("n0", oEdge.Vertices[0].Name);
Assert.AreEqual("n1", oEdge.Vertices[1].Name);
sWeight = (String)oEdge.GetRequiredValue("d1", typeof(String));
Assert.AreEqual("1.0", sWeight);
bFound = oEdges.Find("e2", out oEdge);
Assert.IsTrue(bFound);
Assert.AreEqual("n1", oEdge.Vertices[0].Name);
Assert.AreEqual("n3", oEdge.Vertices[1].Name);
sWeight = (String)oEdge.GetRequiredValue("d1", typeof(String));
Assert.AreEqual("2.0", sWeight);
bFound = oEdges.Find("e3", out oEdge);
Assert.IsTrue(bFound);
Assert.AreEqual("n3", oEdge.Vertices[0].Name);
Assert.AreEqual("n2", oEdge.Vertices[1].Name);
Assert.IsFalse(oEdge.ContainsKey("d1"));
bFound = oEdges.Find("e4", out oEdge);
Assert.IsTrue(bFound);
Assert.AreEqual("n2", oEdge.Vertices[0].Name);
Assert.AreEqual("n4", oEdge.Vertices[1].Name);
Assert.IsFalse(oEdge.ContainsKey("d1"));
bFound = oEdges.Find("e5", out oEdge);
Assert.IsTrue(bFound);
Assert.AreEqual("n3", oEdge.Vertices[0].Name);
Assert.AreEqual("n5", oEdge.Vertices[1].Name);
Assert.IsFalse(oEdge.ContainsKey("d1"));
bFound = oEdges.Find("e6", out oEdge);
Assert.IsTrue(bFound);
Assert.AreEqual("n5", oEdge.Vertices[0].Name);
Assert.AreEqual("n4", oEdge.Vertices[1].Name);
sWeight = (String)oEdge.GetRequiredValue("d1", typeof(String));
Assert.AreEqual("1.1", sWeight);
}
TestLoadGraphFromStreamOrFile
(
Boolean bFromStream
)
{
const String XmlString =
"<?xml version=\"1.0\" encoding=\"UTF-8\"?>"
+ " <graphml xmlns=\"http://graphml.graphdrawing.org/xmlns\">"
+ " "
+ " <key id=\"VertexColor\" for=\"node\" attr.name=\"Color\" attr.type=\"string\" />"
+ " <key id=\"VertexLatestPostDate\" for=\"node\" attr.name=\"Latest Post Date\""
+ " attr.type=\"string\" />"
+ " <key id=\"EdgeWidth\" for=\"edge\" attr.name=\"Width\" attr.type=\"double\">"
+ " <default>1.5</default>"
+ " </key>"
+ " <graph edgedefault=\"undirected\">"
+ " <node id=\"V1\">"
+ " <data key=\"VertexColor\">red</data>"
+ " <data key=\"VertexLatestPostDate\">2009/07/05</data>"
+ " </node>"
+ " <node id=\"V2\">"
+ " <data key=\"VertexColor\">orange</data>"
+ " <data key=\"VertexLatestPostDate\">2009/07/12</data>"
+ " </node>"
+ " <node id=\"V3\">"
+ " <data key=\"VertexColor\">blue</data>"
+ " </node>"
+ " <node id=\"V4\">"
+ " <data key=\"VertexColor\">128,0,128</data>"
+ " </node>"
+ " <node id=\"V5\" />"
+ " <edge id=\"E1\" source=\"V1\" target=\"V2\" />"
+ " <edge id=\"E2\" source=\"V3\" target=\"V2\">"
+ " <data key=\"EdgeWidth\">2.5</data>"
+ " </edge>"
+ " </graph>"
+ " </graphml>"
;
IGraph oGraph = null;
if (bFromStream)
{
Stream oXmlStream = new StringStream(XmlString);
oGraph = m_oGraphAdapter.LoadGraphFromStream(oXmlStream);
}
else
{
using (StreamWriter oStreamWriter =
new StreamWriter(m_sTempFileName))
{
oStreamWriter.Write(XmlString);
}
oGraph = m_oGraphAdapter.LoadGraphFromFile(m_sTempFileName);
}
Assert.AreEqual(GraphDirectedness.Undirected, oGraph.Directedness);
IVertexCollection oVertices = oGraph.Vertices;
IEdgeCollection oEdges = oGraph.Edges;
Boolean bFound;
IVertex oVertex;
String sColor, sLatestPostDate;
Assert.AreEqual(5, oVertices.Count);
bFound = oVertices.Find("V1", out oVertex);
Assert.IsTrue(bFound);
sColor = (String)oVertex.GetRequiredValue("Color", typeof(String));
Assert.AreEqual("red", sColor);
sLatestPostDate = (String)oVertex.GetRequiredValue(
"Latest Post Date", typeof(String));
Assert.AreEqual("2009/07/05", sLatestPostDate);
bFound = oVertices.Find("V2", out oVertex);
Assert.IsTrue(bFound);
sColor = (String)oVertex.GetRequiredValue("Color", typeof(String));
Assert.AreEqual("orange", sColor);
sLatestPostDate = (String)oVertex.GetRequiredValue(
"Latest Post Date", typeof(String));
Assert.AreEqual("2009/07/12", sLatestPostDate);
bFound = oVertices.Find("V3", out oVertex);
Assert.IsTrue(bFound);
sColor = (String)oVertex.GetRequiredValue("Color", typeof(String));
Assert.AreEqual("blue", sColor);
bFound = oVertices.Find("V4", out oVertex);
Assert.IsTrue(bFound);
sColor = (String)oVertex.GetRequiredValue("Color", typeof(String));
Assert.AreEqual("128,0,128", sColor);
bFound = oVertices.Find("V5", out oVertex);
Assert.IsTrue(bFound);
IEdge oEdge;
Double dWidth;
bFound = oEdges.Find("E1", out oEdge);
Assert.IsTrue(bFound);
Assert.AreEqual("V1", oEdge.Vertices[0].Name);
Assert.AreEqual("V2", oEdge.Vertices[1].Name);
dWidth = (Double)oEdge.GetRequiredValue("Width", typeof(Double));
Assert.AreEqual(1.5, dWidth);
bFound = oEdges.Find("E2", out oEdge);
Assert.IsTrue(bFound);
Assert.AreEqual("V3", oEdge.Vertices[0].Name);
Assert.AreEqual("V2", oEdge.Vertices[1].Name);
dWidth = (Double)oEdge.GetRequiredValue("Width", typeof(Double));
Assert.AreEqual(2.5, dWidth);
String [] asGraphMLVertexAttributes = ( String[] )
oGraph.GetRequiredValue(ReservedMetadataKeys.AllVertexMetadataKeys,
typeof(String[]));
Assert.AreEqual(2, asGraphMLVertexAttributes.Length);
Assert.IsTrue(Array.IndexOf <String>(asGraphMLVertexAttributes,
"Color") >= 0);
Assert.IsTrue(Array.IndexOf <String>(asGraphMLVertexAttributes,
"Latest Post Date") >= 0);
String [] asGraphMLEdgeAttributes = ( String[] )
oGraph.GetRequiredValue(ReservedMetadataKeys.AllEdgeMetadataKeys,
typeof(String[]));
Assert.AreEqual(1, asGraphMLEdgeAttributes.Length);
Assert.IsTrue(Array.IndexOf <String>(asGraphMLEdgeAttributes,
"Width") >= 0);
}