t = codesters.Teacher()
grid = t.find_text('create_grid_overlay')
try:
tval1 = grid[0][1].replace(' ', '')
except:
tval1 = "DNE"
t1 = TestObjective()
t1.add_success('(50,"' in tval1, "Great job! Click Submit, then Next to move on!")
t1.add_failure(tval1 == "DNE", "Did you add a grid overlay?")
t1.add_failure('(50,"' not in tval1 and tval1 != "DNE", "Make sure you use a add a grid overlay with the first parameter set to 50.")
tester = TestManager()
tester.display_graphics = False
tester.add_test_list([t1])
tester.run_tests()
tester.display_first_feedback()