public void WritesEmptyStrictGraph()
{
IStringWriter writer = new StringWriterAdapter();
GraphVizWriter g = new GraphVizWriter(writer, Mock.Of <IDotHelper>());
g.StartGraph(GraphMode.Graph, strict: true);
g.EndGraph();
string result = writer.GetStringBuilder().ToString().Trim();
string expected = "strict graph \"\" {" + Environment.NewLine + "}";
Assert.Equal(expected, result);
}
private void btnVisualise_Click(object sender, EventArgs e)
{
if (this.txtFile.Text.Equals(String.Empty))
{
MessageBox.Show("You must enter a filename you wish to visualise the Graph to", "Filename Required", MessageBoxButtons.OK, MessageBoxIcon.Information);
}
else
{
try
{
switch (Path.GetExtension(this.txtFile.Text))
{
case ".dot":
case "dot":
GraphVizWriter dotwriter = new GraphVizWriter();
dotwriter.Save(this._g, this.txtFile.Text);
break;
case ".png":
case "png":
GraphVizGenerator pnggenerator = new GraphVizGenerator("png");
pnggenerator.Generate(this._g, this.txtFile.Text, true);
break;
case ".svg":
case "svg":
default:
GraphVizGenerator svggenerator = new GraphVizGenerator("svg");
svggenerator.Generate(this._g, this.txtFile.Text, true);
break;
}
}
catch (Exception ex)
{
MessageBox.Show("An Error occurred while trying to visualise the selected Graph:\n" + ex.Message, "Visualisation Error", MessageBoxButtons.OK, MessageBoxIcon.Error);
}
this.DialogResult = DialogResult.OK;
this.Close();
}
}
public void GivenNodeWithTwoAttributes_ThenWritesThemCorrectly()
{
IAttrSet attributes = AttrSet.Empty.Width(1).Label("x");
IStringWriter writer = new StringWriterAdapter();
var dotHelperMock = new Mock <IDotHelper>();
dotHelperMock.Setup(m => m.EscapeId(It.IsAny <string>())).Returns((string s) => s);
dotHelperMock.Setup(m => m.GetRecordFromAttribute(It.IsAny <IAttribute>()))
.Returns((IAttribute a) => $"{a.Key}={a.StringValue}");
GraphVizWriter g = new GraphVizWriter(writer, dotHelperMock.Object);
g.Node("z", attributes);
string result = writer.GetStringBuilder().ToString();
string expected = $"z [width=1, label=x];{Environment.NewLine}";
Assert.Equal(expected, result);
}
public GraphHandle(GraphVizWriter w)
{
_w = w;
}
internal void MarkAsUsed()
{
_w = null;
}