def test_04_convert():
outcome = formal_code.convert(number=35)
assert outcome == 'PlongPlang' #-------> Test failed, it should be 'Plang Plong'
def test_05_convert():
outcome = formal_code.convert(number=23568)
assert outcome == 'Pling' #-------> Test passed.
def test_02_convert():
outcome = formal_code.convert(number=21)
assert outcome == 'PlingPlong'
def test_03_convert():
outcome = formal_code.convert(number=43)
assert outcome == '43'
def test_03_convert():
outcome = formal_code.convert(number=28)
assert outcome == 'Plong'
def test_02_convert():
outcome = formal_code.convert(number=50)
assert outcome == 'Plang'
def test_convert():
outcome = formal_code.convert(number=30)
assert outcome == 'PlingPlang'
