# Test Text methods on all types of receivers
-print txt.to_upper
-print txt.to_lower
-assert txt * 2 == txt + txt
print txt.substring(0, 105)
print txt.substring_from(106)
-print txt.reversed
print txt.length
assert not txt.is_empty
print txt.index_of('h')
var chars = txt.chars
assert chars != txt.substring_from(106).chars
-assert (txt.substring(0,105) + txt.substring_from(105)).chars == txt.chars
assert chars[0] == 'W'
assert chars.count('o') == 11
assert chars.first == chars[0]