This test checks for labels of chloride data nodes which can use Unicode.
For a chloride data node the label Cl- is used, but the chemically more correct Unicode version Cl⁻ can be used.
Open the pathway and replace the Cl- label with a Cl⁻ label.
IMPORTANT: PathVisio 3.3 currently does not display Unicode characters correctly in the main view, but it can still be used to edit the labels. After uploading, the classic and the new website will display the Unicode label correctly.