Default
open /SystemWebExtensionsAUT/Sys.Debug/Default.aspx
type text1 test
click btnTrace
assertAlert Hello test.
assertText TraceConsole
click btnDump
assertAlert Hello test.
assertText TraceConsole
click btnClear
assertAlert Trace console cleared.
assertText TraceConsole
chooseCancelOnNextConfirmation
click btnAssert
assertConfirmation Assertion Failed: n must be set to a positive integer.

Break into debugger?