Test verifyEditable
open ../tests/html/test_editable.html  
verifyEditable normal_text  
verifyEditable normal_select  
verifyNotEditable disabled_text  
verifyNotEditable disabled_select  
verifyNotEditable readonly_text  
assertFailureOnNext true
verifyNotEditable normal_text  
assertFailureOnNext true
verifyNotEditable normal_select  
assertFailureOnNext false
verifyEditable disabled_text  
assertFailureOnNext false
verifyEditable disabled_select  
assertFailureOnNext Element fake_input is not an input.
verifyEditable fake_input