def test_run_output():
eq_(''.join(run(cmd('echo foo'))), 'foo\n')
eq_(run(compose(join, cmd('echo foo'))), 'foo\n')
eq_(call(cmd('echo foo')), 0)
def test_huge_input():
wc = compose(join, cmd('wc -l'))
eq_(wc('%d\n' % x for x in range(10000)), '10000\n')
def test_cmd():
text = six.u('привет, λ!\nλx. x\nдо свидания\n')
regexp = six.u('λ[a-zA-Z]\.')
grep = compose(join, cmd('grep {}', regexp))
eq_(grep(text), six.u('λx. x\n'))
def __or__(self, other):
return Fun(compose(other, self))