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-- tests string functions added by dfhack.lua

function test.startswith()

expect.true_(('abcd'):startswith(''))

expect.true_(('abcd'):startswith('abc'))

expect.false_(('abcd'):startswith('bcd'))

expect.false_(('abcd'):startswith('abcde'))

expect.true_((''):startswith(''))

expect.false_((''):startswith('a'))

expect.false_(('str'):startswith('.'),

'ensure we match literals, not patterns')

end

function test.endswith()

expect.true_(('abcd'):endswith(''))

expect.true_(('abcd'):endswith('bcd'))

expect.false_(('abcd'):endswith('abc'))

expect.false_(('abcd'):endswith('zabcd'))

expect.true_((''):endswith(''))

expect.false_((''):endswith('a'))

expect.false_(('str'):endswith('.'),

'ensure we match literals, not patterns')

end

function test.split()

expect.table_eq({'hello','world'}, ('hello world'):split())

expect.table_eq({'hello','','world'}, ('hello world'):split())

expect.table_eq({'hello','world'}, ('hello world'):split(' +'))

expect.table_eq({'hello','world'}, ('hello.world'):split('.', true),

'ensure literal interpretation when plain is true')

expect.table_eq({'', '', '', ''}, ('abc'):split('.'),

'ensure pattern interpretation when plain is false')

-- we don't actually care what this returns, just that it does return

expect.true_(('hello world'):split('.*'), 'ensure no infinite loop')

expect.table_eq({'hello ', ' world'}, ('hello , world'):split(','),

'ensure spaces are kept when they are not the delimiter')

expect.table_eq({'hello'}, ('hello'):split(), 'no delimiter')

end

function test.trim()

expect.eq('hello', ('hello'):trim())

expect.eq('hello', (' hello'):trim())

expect.eq('hello', ('hello '):trim())

expect.eq('hello', (' hello '):trim())

expect.eq('', (''):trim())

expect.eq('', (' '):trim())

expect.eq('', (' \t \n \v '):trim())

expect.eq('hel lo', (' hel lo '):trim(), 'keep interior spaces')

expect.eq('hel \n lo', (' hel \n lo '):trim(),

'keep interior spaces across newlines')

end

function test.wrap()

expect.eq('hello world', ('hello world'):wrap(20))

expect.eq('hello world', ('hello world'):wrap(20))

expect.eq('hello world\nhow are you?',('hello world how are you?'):wrap(12))

expect.eq('hello\nworld', ('hello world'):wrap(5))

expect.eq('hello\nworld', ('hello world'):wrap(5))

expect.eq('hello\nworld', ('hello world'):wrap(8))

expect.eq('hel\nlo\nwor\nld', ('hello world'):wrap(3))

expect.eq('hel\nloo\nwor\nldo', ('helloo worldo'):wrap(3))

expect.eq('', (''):wrap())

expect.error_match('expected width > 0', function() ('somestr'):wrap(0) end)

end

function test.escape_pattern()

-- no change expected

expect.eq('', (''):escape_pattern())

expect.eq(' ', (' '):escape_pattern())

expect.eq('abc', ('abc'):escape_pattern())

expect.eq('a,b', ('a,b'):escape_pattern())

expect.eq('"a,b"', ('"a,b"'):escape_pattern())

-- excape regex chars

expect.eq('iz for me%?', ('iz for me?'):escape_pattern())

expect.eq('%.%*', ('.*'):escape_pattern())

expect.eq('%( %) %. %% %+ %- %* %? %[ %] %^ %$',

('( ) . % + - * ? [ ] ^ $'):escape_pattern())

end