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# -*- coding: utf-8
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"""Tests for prompt generation."""
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import unittest
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import os
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from IPython.testing import tools as tt, decorators as dec
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from IPython.core.prompts import PromptManager, LazyEvaluate
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from IPython.testing.globalipapp import get_ipython
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from IPython.utils.tempdir import TemporaryDirectory
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ip = get_ipython()
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class PromptTests(unittest.TestCase):
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def setUp(self):
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self.pm = PromptManager(shell=ip, config=ip.config)
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def test_multiline_prompt(self):
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self.pm.in_template = "[In]\n>>>"
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self.pm.render('in')
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self.assertEqual(self.pm.width, 3)
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self.assertEqual(self.pm.txtwidth, 3)
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self.pm.in_template = '[In]\n'
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self.pm.render('in')
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self.assertEqual(self.pm.width, 0)
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self.assertEqual(self.pm.txtwidth, 0)
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def test_translate_abbreviations(self):
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def do_translate(template):
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self.pm.in_template = template
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return self.pm.templates['in']
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pairs = [(r'%n>', '{color.number}{count}{color.prompt}>'),
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(r'\T', '{time}'),
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(r'\n', '\n')
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]
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tt.check_pairs(do_translate, pairs)
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def test_user_ns(self):
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self.pm.color_scheme = 'NoColor'
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ip.ex("foo='bar'")
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self.pm.in_template = "In [{foo}]"
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prompt = self.pm.render('in')
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self.assertEqual(prompt, u'In [bar]')
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def test_builtins(self):
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self.pm.color_scheme = 'NoColor'
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self.pm.in_template = "In [{int}]"
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prompt = self.pm.render('in')
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self.assertEqual(prompt, u"In [%r]" % int)
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def test_undefined(self):
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self.pm.color_scheme = 'NoColor'
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self.pm.in_template = "In [{foo_dne}]"
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prompt = self.pm.render('in')
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self.assertEqual(prompt, u"In [<ERROR: 'foo_dne' not found>]")
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def test_render(self):
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self.pm.in_template = r'\#>'
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self.assertEqual(self.pm.render('in',color=False), '%d>' % ip.execution_count)
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def test_render_unicode_cwd(self):
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save = os.getcwdu()
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with TemporaryDirectory(u'ünicødé') as td:
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os.chdir(td)
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self.pm.in_template = r'\w [\#]'
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p = self.pm.render('in', color=False)
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self.assertEqual(p, u"%s [%i]" % (os.getcwdu(), ip.execution_count))
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os.chdir(save)
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def test_lazy_eval_unicode(self):
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u = u'ünicødé'
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lz = LazyEvaluate(lambda : u)
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# str(lz) would fail
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self.assertEqual(unicode(lz), u)
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self.assertEqual(format(lz), u)
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def test_lazy_eval_nonascii_bytes(self):
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u = u'ünicødé'
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b = u.encode('utf8')
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lz = LazyEvaluate(lambda : b)
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# unicode(lz) would fail
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self.assertEqual(str(lz), str(b))
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self.assertEqual(format(lz), str(b))
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def test_lazy_eval_float(self):
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f = 0.503
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lz = LazyEvaluate(lambda : f)
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self.assertEqual(str(lz), str(f))
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self.assertEqual(unicode(lz), unicode(f))
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self.assertEqual(format(lz), str(f))
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self.assertEqual(format(lz, '.1'), '0.5')
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@dec.skip_win32
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def test_cwd_x(self):
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self.pm.in_template = r"\X0"
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save = os.getcwdu()
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os.chdir(os.path.expanduser('~'))
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p = self.pm.render('in', color=False)
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try:
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self.assertEqual(p, '~')
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finally:
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os.chdir(save)
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