import unittest

from bpython.curtsiesfrontend import interpreter

from bpython.curtsiesfrontend.repl import bad_empty_lines_removed

from curtsies.fmtfuncs import *

class TestInterpreter(unittest.TestCase):

def test_syntaxerror(self):

i = interpreter.Interp()

a = []

def append_to_a(message):

a.append(message)

i.write = append_to_a

i.runsource('1.1.1.1')

expected = ''+u''+u' File '+green(u'"<input>"')+u', line '+bold(magenta(u'1'))+u'\n'+u' '+u'1.1'+u'.'+u'1.1'+u'\n'+u' '+u' '+u'^'+u'\n'+bold(red(u'SyntaxError'))+u': '+cyan(u'invalid syntax')+u'\n'

self.assertEquals(str(plain('').join(a)), str(expected))

self.assertEquals(plain('').join(a), expected)

def test_traceback(self):

i = interpreter.Interp()

a = []

def append_to_a(message):

a.append(message)

i.write = append_to_a

def f():

return 1/0

def g():

return f()

i.runsource('g()')

expected = u'Traceback (most recent call last):\n'+''+u' File '+green(u'"<input>"')+u', line '+bold (magenta(u'1'))+u', in '+cyan(u'<module>')+u'\n'+''+bold(red(u'NameError'))+u': '+cyan(u"name 'g' is not defined")+u'\n'

self.assertEquals(str(plain('').join(a)), str(expected))

self.assertEquals(plain('').join(a), expected)

class TestPreprocessing(unittest.TestCase):

def test_bad_empty_lines_removed(self):

self.assertEqual(bad_empty_lines_removed("def foo():\n"

" return 1\n"

"\n"

" pass\n"),

"def foo():\n"

" return 1\n"

" pass\n")