"""
All character set and unicode related tests.
"""
from jedi import Project


def test_unicode_script(Script):
    s = "import datetime; datetime.timedelta"
    completions = Script(s).complete()
    assert len(completions)
    assert type(completions[0].description) is str

    s = "author='öä'; author"
    completions = Script(s).complete()
    x = completions[0].description
    assert type(x) is str

    s = "#-*- coding: iso-8859-1 -*-\nauthor='öä'; author"
    s = s.encode('latin-1')
    completions = Script(s).complete()
    assert type(completions[0].description) is str


def test_unicode_attribute(Script):
    """ github jedi-vim issue #94 """
    s1 = ('#-*- coding: utf-8 -*-\nclass Person():\n'
          '    name = "e"\n\nPerson().name.')
    completions1 = Script(s1).complete()
    assert 'strip' in [c.name for c in completions1]
    s2 = ('#-*- coding: utf-8 -*-\nclass Person():\n'
          '    name = "é"\n\nPerson().name.')
    completions2 = Script(s2).complete()
    assert 'strip' in [c.name for c in completions2]


def test_multibyte_script(Script):
    """ `jedi.Script` must accept multi-byte string source. """
    code = "import datetime; datetime.d"
    comment = "# multi-byte comment あいうえおä"
    s = ('%s\n%s') % (code, comment)
    assert len(Script(s).complete(1, len(code)))


def test_goto_definition_at_zero(Script):
    """Infer at zero sometimes raises issues."""
    assert Script("a").infer(1, 1) == []
    s = Script("str").infer(1, 1)
    assert len(s) == 1
    assert list(s)[0].description == 'class str'
    assert Script("").infer(1, 0) == []


def test_complete_at_zero(Script):
    s = Script("str").complete(1, 3)
    assert len(s) == 1
    assert list(s)[0].name == 'str'

    s = Script("").complete(1, 0)
    assert len(s) > 0


def test_wrong_encoding(Script, tmpdir):
    x = tmpdir.join('x.py')
    # Use both latin-1 and utf-8 (a really broken file).
    x.write_binary('foobar = 1\nä'.encode('latin-1') + 'ä'.encode('utf-8'))

    project = Project(tmpdir.strpath)
    c, = Script('import x; x.foo', project=project).complete()
    assert c.name == 'foobar'