Expected a value, but got $null or empty.
at <ScriptBlock>, /home/mark/Documents/Projects/PSClassUtils/Tests/ClassUtils.Write-CUClassDiagram.Tests.ps1: line 136
136: $a -cmatch '"Woop" \[label=.*' | should not benullOrEmpty
Expected a value, but got $null or empty.
at <ScriptBlock>, /home/mark/Documents/Projects/PSClassUtils/Tests/ClassUtils.Write-CUClassDiagram.Tests.ps1: line 191
191: $b -cmatch '"Woop" \[label=.*' | should Not beNullOrEmpty