# coding: utf-8
from __future__ import unicode_literals
from _pydev_bundle._pydev_completer import isidentifier, extract_token_and_qualifier, TokenAndQualifier


def test_isidentifier():
    assert isidentifier("abc")
    assert not isidentifier("<")
    assert not isidentifier("")
    assert isidentifier("áéíóú")


def test_extract_token_and_qualifier():
    assert extract_token_and_qualifier("tok", 0, 0) == TokenAndQualifier("", "")
    assert extract_token_and_qualifier("tok", 0, 1) == TokenAndQualifier("", "t")
    assert extract_token_and_qualifier("tok", 0, 2) == TokenAndQualifier("", "to")
    assert extract_token_and_qualifier("tok", 0, 3) == TokenAndQualifier("", "tok")
    assert extract_token_and_qualifier("tok", 0, 4) == TokenAndQualifier("", "tok")

    assert extract_token_and_qualifier("tok.qual", 0, 0) == TokenAndQualifier("", "")
    assert extract_token_and_qualifier("tok.qual", 0, 1) == TokenAndQualifier("", "t")
    assert extract_token_and_qualifier("tok.qual", 0, 2) == TokenAndQualifier("", "to")
    assert extract_token_and_qualifier("tok.qual", 0, 3) == TokenAndQualifier("", "tok")

    assert extract_token_and_qualifier("tok.qual", 0, 4) == TokenAndQualifier("tok", "")
    assert extract_token_and_qualifier("tok.qual", 0, 5) == TokenAndQualifier("tok", "q")
    assert extract_token_and_qualifier("tok.qual", 0, 6) == TokenAndQualifier("tok", "qu")
    assert extract_token_and_qualifier("tok.qual", 0, 7) == TokenAndQualifier("tok", "qua")
    assert extract_token_and_qualifier("tok.qual", 0, 8) == TokenAndQualifier("tok", "qual")

    # out of range (column)
    assert extract_token_and_qualifier("tok.qual.qual2", 0, 100) == TokenAndQualifier("tok.qual", "qual2")

    assert extract_token_and_qualifier("t<ok", 0, 0) == TokenAndQualifier("", "")
    assert extract_token_and_qualifier("t<ok", 0, 1) == TokenAndQualifier("", "t")
    assert extract_token_and_qualifier("t<ok", 0, 2) == TokenAndQualifier("", "")
    assert extract_token_and_qualifier("t<ok", 0, 3) == TokenAndQualifier("", "o")
    assert extract_token_and_qualifier("t<ok", 0, 4) == TokenAndQualifier("", "ok")

    assert extract_token_and_qualifier("a\nt<ok", 1, 0) == TokenAndQualifier("", "")
    assert extract_token_and_qualifier("a\nt<ok", 1, 1) == TokenAndQualifier("", "t")
    assert extract_token_and_qualifier("a\nt<ok", 1, 2) == TokenAndQualifier("", "")
    assert extract_token_and_qualifier("a\nt<ok", 1, 3) == TokenAndQualifier("", "o")
    assert extract_token_and_qualifier("a\nt<ok", 1, 4) == TokenAndQualifier("", "ok")

    # out of range (line)
    assert extract_token_and_qualifier("a\nt<ok", 5, 4) == TokenAndQualifier("", "")