YouCompleteMe/python/ycm/server/tests/diagnostics_test.py

#!/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 ..server_utils import SetUpPythonPath
SetUpPythonPath()
from .test_utils import Setup, BuildRequest
from webtest import TestApp
from nose.tools import with_setup, eq_
from hamcrest import ( assert_that, contains, contains_string, has_entries,
                       has_entry, empty )
from ..responses import NoDiagnosticSupport
from .. import handlers
import bottle
import httplib

bottle.debug( True )

@with_setup( Setup )
def Diagnostics_ClangCompleter_ZeroBasedLineAndColumn_test():
  app = TestApp( handlers.app )
  contents = """
void foo() {
  double baz = "foo";
}
// Padding to 5 lines
// Padding to 5 lines
"""

  event_data = BuildRequest( compilation_flags = ['-x', 'c++'],
                             event_name = 'FileReadyToParse',
                             contents = contents,
                             filetype = 'cpp' )

  results = app.post_json( '/event_notification', event_data ).json
  assert_that( results,
               contains(
                  has_entries( {
                    'text': contains_string( 'cannot initialize' ),
                    'ranges': contains( has_entries( {
                      'start': has_entries( {
                        'line_num': 2,
                        'column_num': 15,
                      } ),
                      'end': has_entries( {
                        'line_num': 2,
                        'column_num': 20,
                      } ),
                    } ) ),
                    'location': has_entries( {
                      'line_num': 2,
                      'column_num': 9
                    } ),
                    'location_extent': has_entries( {
                      'start': has_entries( {
                        'line_num': 2,
                        'column_num': 9,
                      } ),
                      'end': has_entries( {
                        'line_num': 2,
                        'column_num': 12,
                      } ),
                    } )
                  } ) ) )


@with_setup( Setup )
def Diagnostics_ClangCompleter_SimpleLocationExtent_test():
  app = TestApp( handlers.app )
  contents = """
void foo() {
  baz = 5;
}
// Padding to 5 lines
// Padding to 5 lines
"""

  event_data = BuildRequest( compilation_flags = ['-x', 'c++'],
                             event_name = 'FileReadyToParse',
                             contents = contents,
                             filetype = 'cpp' )

  results = app.post_json( '/event_notification', event_data ).json
  assert_that( results,
               contains(
                  has_entries( {
                    'location_extent': has_entries( {
                      'start': has_entries( {
                        'line_num': 2,
                        'column_num': 2,
                      } ),
                      'end': has_entries( {
                        'line_num': 2,
                        'column_num': 5,
                      } ),
                    } )
                  } ) ) )


@with_setup( Setup )
def Diagnostics_ClangCompleter_PragmaOnceWarningIgnored_test():
  app = TestApp( handlers.app )
  contents = """
#pragma once

struct Foo {
  int x;
  int y;
  int c;
  int d;
};
"""

  event_data = BuildRequest( compilation_flags = ['-x', 'c++'],
                             event_name = 'FileReadyToParse',
                             contents = contents,
                             filepath = '/foo.h',
                             filetype = 'cpp' )

  response = app.post_json( '/event_notification', event_data )
  assert_that( response.body, empty() )


@with_setup( Setup )
def GetDetailedDiagnostic_ClangCompleter_Works_test():
  app = TestApp( handlers.app )
  contents = """
struct Foo {
  int x  // semicolon missing here!
  int y;
  int c;
  int d;
};
"""

  diag_data = BuildRequest( compilation_flags = ['-x', 'c++'],
                            line_num = 2,
                            contents = contents,
                            filetype = 'cpp' )

  event_data = diag_data.copy()
  event_data.update( {
    'event_name': 'FileReadyToParse',
  } )

  app.post_json( '/event_notification', event_data )
  results = app.post_json( '/detailed_diagnostic', diag_data ).json
  assert_that( results,
               has_entry( 'message', contains_string( "expected ';'" ) ) )


@with_setup( Setup )
def GetDetailedDiagnostic_JediCompleter_DoesntWork_test():
  app = TestApp( handlers.app )
  diag_data = BuildRequest( contents = "foo = 5",
                            line_num = 1,
                            filetype = 'python' )
  response = app.post_json( '/detailed_diagnostic',
                            diag_data,
                            expect_errors = True )

  eq_( response.status_code, httplib.INTERNAL_SERVER_ERROR )
  assert_that( response.json,
               has_entry( 'exception',
                          has_entry( 'TYPE', NoDiagnosticSupport.__name__ ) ) )