public void GraphEquality()
{
try
{
Console.WriteLine("Going to get two copies of a Graph from DBPedia and compare");
Console.WriteLine("Using the DBPedia Graph for Barack Obama");
Graph g = new Graph();
Graph h = new Graph();
Uri target = new Uri("http://dbpedia.org/resource/Barack_Obama");
VDS.RDF.Parsing.UriLoader.Load(g, target);
Console.WriteLine("Loaded first copy OK - " + g.Triples.Count + " Triples");
VDS.RDF.Parsing.UriLoader.Load(h, target);
Console.WriteLine("Loaded second copy OK - " + h.Triples.Count + " Triples");
//Should have same Base Uri
Assert.AreEqual(g.BaseUri, h.BaseUri, "Should have the same Base URI after being loaded from the same URI via the URILoader");
//Do equality check
Console.WriteLine("Checking the Equality of the Graphs");
//TestTools.CompareGraphs(g, h, true);
Dictionary <INode, INode> mapping;
bool equals = g.Equals(h, out mapping);
Assert.IsTrue(equals, "Graphs should have been equal");
if (mapping != null)
{
Console.WriteLine("Blank Node Mapping was:");
foreach (KeyValuePair <INode, INode> pair in mapping)
{
Console.WriteLine(pair.Key.ToString() + " => " + pair.Value.ToString());
}
}
Console.WriteLine();
//Get a third graph of something different
Console.WriteLine("Going to get a third Graph of something different and check it is non-equal");
Uri target2 = new Uri("http://dbpedia.org/resource/Nottingham");
Graph i = new Graph();
VDS.RDF.Parsing.UriLoader.Load(i, target2);
//Should have different Base URIs and be non-equal
Assert.AreNotEqual(g.BaseUri, i.BaseUri, "Graphs retrieved from different URIs via the URILoader should have different Base URIs");
Assert.AreNotEqual(h.BaseUri, i.BaseUri, "Graphs retrieved from different URIs via the URILoader should have different Base URIs");
Assert.IsFalse(g.Equals(i));
Assert.IsFalse(h.Equals(i));
//TestTools.CompareGraphs(g, i, false);
//TestTools.CompareGraphs(h, i, false);
}
catch (WebException webEx)
{
TestTools.ReportError("Web Exception", webEx);
Console.WriteLine();
Console.WriteLine("Unable to retrieve the Graphs from the Web successfully!");
Assert.Inconclusive();
}
catch (RdfParseException parseEx)
{
throw;
}
catch (Exception ex)
{
throw;
}
}
public void GraphEquality()
{
Skip.IfNot(TestConfigManager.GetSettingAsBoolean(TestConfigManager.UseRemoteParsing), "Test Config marks Remote Parsing as unavailable, test cannot be run");
try
{
Options.UriLoaderCaching = false;
Console.WriteLine("Going to get two copies of a Graph from DBPedia and compare");
Console.WriteLine("Using the DBPedia Graph for Barack Obama");
Graph g = new Graph();
Graph h = new Graph();
Uri target = new Uri("http://dbpedia.org/resource/Barack_Obama");
VDS.RDF.Parsing.UriLoader.Load(g, target);
Console.WriteLine("Loaded first copy OK - " + g.Triples.Count + " Triples");
VDS.RDF.Parsing.UriLoader.Load(h, target);
Console.WriteLine("Loaded second copy OK - " + h.Triples.Count + " Triples");
//Should have same Base Uri
Assert.Equal(g.BaseUri, h.BaseUri);
//Do equality check
Console.WriteLine("Checking the Equality of the Graphs");
//TestTools.CompareGraphs(g, h, true);
Dictionary <INode, INode> mapping;
bool equals = g.Equals(h, out mapping);
Assert.True(equals, "Graphs should have been equal");
if (mapping != null)
{
Console.WriteLine("Blank Node Mapping was:");
foreach (KeyValuePair <INode, INode> pair in mapping)
{
Console.WriteLine(pair.Key.ToString() + " => " + pair.Value.ToString());
}
}
Console.WriteLine();
//Get a third graph of something different
Console.WriteLine("Going to get a third Graph of something different and check it is non-equal");
Uri target2 = new Uri("http://dbpedia.org/resource/Nottingham");
Graph i = new Graph();
VDS.RDF.Parsing.UriLoader.Load(i, target2);
//Should have different Base URIs and be non-equal
Assert.Equal(g.BaseUri, i.BaseUri);
Assert.Equal(h.BaseUri, i.BaseUri);
Assert.False(g.Equals(i));
Assert.False(h.Equals(i));
//TestTools.CompareGraphs(g, i, false);
//TestTools.CompareGraphs(h, i, false);
}
catch (WebException webEx)
{
TestTools.ReportError("Web Exception", webEx);
Console.WriteLine();
Console.WriteLine("Unable to retrieve the Graphs from the Web successfully!");
Skip.If(true, "Unable to retrieve the graphs from the web successfully.");
}
finally
{
Options.UriLoaderCaching = true;
}
}
