The Coverage tab shows a hierarchical view of the files associated with the tests. Each node in the hierarchy shows how much of each file or directory is covered in brackets. Coverage information is not currently available for functional tests.
Click on a disclosure triangle to navigate the tree. When an item is loaded that does not have any siblings, its children are automatically loaded and displayed. This behavior will cascade until the tree reaches a branch with multiple items at the same level (a decision point) or until the branch cannot be expanded any further. The coverage tree panel will not automatically expand nodes again if it has been previously expanded and collapsed unless the search criteria has changed, or the page has been reloaded.