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require "#{File.dirname(__FILE__)}/helpers.rb"
class TestMisc < TC
def test_lazy
p1 = nil
p2 = lazy{p1}
p1 = '3'.r
asp '3', p2
p1 = '4'.r
asp '3', p2
p2 = lazy{p7} # don't have to define p7 before lazy
p7 = '5'.r
asp '5',p2
end
def test_eof
p = ''.r.eof
asp '', p
ase INVALID, p.parse('a')
p = seq('a', 'b').eof
ase INVALID, p.parse('abc')
ase ['a', 'b'], p.parse('ab')
end
def test_cache
p1 = seq('a', seq('b', 'c'))
p = seq(p1.cached, 'd')
ase [['a',['b','c']],'d'], p.parse('abcd')
# with map block
p = seq(p1.cached{ 'mapped' }, 'd')
ase ['mapped', 'd'], p.parse('abcd')
end
def test_map
p = /\w/.r.map{|n| n*2}
ase 'bb', p.parse('b')
ase INVALID, p.parse('.')
end
def test_fail
p = 'v'.r.fail 'omg!'
p.eof.parse! 'u'
assert false, "should raise syntax error"
rescue Rsec::SyntaxError => e
assert e.to_s.index 'omg!'
end
def test_fail_with_block
p = 'v'.r.fail('omg!'){ 'should fail' }
p.eof.parse! 'u'
assert false, "should raise syntax error"
rescue Rsec::SyntaxError => e
assert e.to_s.index 'omg!'
end
end
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