''' Purpose simple testing of module clean
'''

import clean

# define test cases
test1 = [ 'xxxx', 'xxxx', 'xxxx', 'xxxx', 'xxxx', 'xxxx', 'xxxx' ]
test2 = [ 'xxxx' ]
test3 = []

s1 = test1[ : ]
s2 = test2[ : ]
s3 = test3[ : ]

low1  = clean.lower( s1 )
low2  = clean.lower( s2 )
low3  = clean.lower( s3 )

print( 'lower(', s1, ') = ', low1 )
print( 'lower(', s2, ') = ', low2 )
print( 'lower(', s3, ') = ', low3 )

print( '\n--------------------------------------------------\n' )

s1 = test1[ : ]
s2 = test2[ : ]
s3 = test3[ : ]

strip1 = clean.strip( s1 )
strip2 = clean.strip( s2 )
strip3 = clean.strip( s3 )

print( 'strip(', s1, ') = ', strip1 )
print( 'strip(', s2, ') = ', strip2 )
print( 'strip(', s3, ') = ', strip3 )

print( '\n--------------------------------------------------\n' )

s1 = test1[ : ]
s2 = test2[ : ]
s3 = test3[ : ]

con1 = clean.canonical( s1 )
con2 = clean.canonical( s2 )
con3 = clean.canonical( s3 )

print( 'canonical(', s1, ') = ', con1 )
print( 'canonical(', s2, ') = ', con2 )
print( 'canonical(', s3, ') = ', con3 )