#!/usr/bin/env python
#
# Copyright (C) 2013  Google Inc.
#
# This file is part of YouCompleteMe.
#
# YouCompleteMe is free software: you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation, either version 3 of the License, or
# (at your option) any later version.
#
# YouCompleteMe is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with YouCompleteMe.  If not, see <http://www.gnu.org/licenses/>.

from nose.tools import eq_
from ycm.completers.all import identifier_completer


def GetCursorIdentifier_StartOfLine_test():
  eq_( 'foo',
       identifier_completer._GetCursorIdentifier(
         {
           'column_num': 0,
           'line_value': 'foo'
         } ) )

  eq_( 'fooBar',
       identifier_completer._GetCursorIdentifier(
         {
           'column_num': 0,
           'line_value': 'fooBar'
         } ) )


def GetCursorIdentifier_EndOfLine_test():
  eq_( 'foo',
       identifier_completer._GetCursorIdentifier(
         {
           'column_num': 2,
           'line_value': 'foo'
         } ) )


def GetCursorIdentifier_PastEndOfLine_test():
  eq_( '',
       identifier_completer._GetCursorIdentifier(
         {
           'column_num': 10,
           'line_value': 'foo'
         } ) )


def GetCursorIdentifier_NegativeColumn_test():
  eq_( '',
       identifier_completer._GetCursorIdentifier(
         {
           'column_num': -10,
           'line_value': 'foo'
         } ) )


def GetCursorIdentifier_StartOfLine_StopsAtNonIdentifierChar_test():
  eq_( 'foo',
       identifier_completer._GetCursorIdentifier(
         {
           'column_num': 0,
           'line_value': 'foo(goo)'
         } ) )


def GetCursorIdentifier_AtNonIdentifier_test():
  eq_( 'goo',
       identifier_completer._GetCursorIdentifier(
         {
           'column_num': 3,
           'line_value': 'foo(goo)'
         } ) )


def GetCursorIdentifier_WalksForwardForIdentifier_test():
  eq_( 'foo',
       identifier_completer._GetCursorIdentifier(
         {
           'column_num': 0,
           'line_value': '       foo'
         } ) )


def GetCursorIdentifier_FindsNothingForward_test():
  eq_( '',
       identifier_completer._GetCursorIdentifier(
         {
           'column_num': 4,
           'line_value': 'foo   ()***()'
         } ) )


def GetCursorIdentifier_SingleCharIdentifier_test():
  eq_( 'f',
       identifier_completer._GetCursorIdentifier(
         {
           'column_num': 0,
           'line_value': '    f    '
         } ) )


def GetCursorIdentifier_StartsInMiddleOfIdentifier_test():
  eq_( 'foobar',
       identifier_completer._GetCursorIdentifier(
         {
           'column_num': 3,
           'line_value': 'foobar'
         } ) )


def GetCursorIdentifier_LineEmpty_test():
  eq_( '',
       identifier_completer._GetCursorIdentifier(
         {
           'column_num': 11,
           'line_value': ''
         } ) )