Memory selection in the debugger inspector is not fully tested

[StevenCostiou]

Add tests

[adri09070]

Do you think about the remembered panes (rectangles) at the bottom of the inspector ?

How is the memory selection different from the normal inspector ?

If I understand it correctly, it should remember the panes at the bottom when we switch to another context and come back to it later ?

If that's the case, it is still not tested and it doesn't work. It only remembers the selected entry in the first pane. If it is supposed to do so, it is not tested neither