Add test for completion of tags as identifiers

ycmd/tests/get_completions_test.py

@@ -26,11 +26,12 @@
 standard_library.install_aliases()
 from builtins import *  # noqa
 
+import os
 from hamcrest import assert_that, equal_to, has_items, contains_string
 from mock import patch
 from nose.tools import eq_
 
-from ycmd.tests import SharedYcmd
+from ycmd.tests import SharedYcmd, PathToTestFile
 from ycmd.tests.test_utils import ( BuildRequest, CompletionEntryMatcher,
                                     DummyCompleter, PatchCompleter,
                                     UserOption, ExpectedFailure )
@@ -193,6 +194,22 @@ def GetCompletions_IdentifierCompleter_SyntaxKeywordsAdded_test( app ):
                           CompletionEntryMatcher( 'zoo' ) ) )
 
 
+@SharedYcmd
+def GetCompletions_IdentifierCompleter_TagsAdded_test( app ):
+  event_data = BuildRequest( event_name = 'FileReadyToParse',
+                             tag_files = [ PathToTestFile( 'basic.tags' ) ] )
+  app.post_json( '/event_notification', event_data )
+
+  completion_data = BuildRequest( contents = 'oo',
+                                  column_num = 3,
+                                  filetype = 'cpp' )
+  results = app.post_json( '/completions',
+                           completion_data ).json[ 'completions' ]
+  assert_that( results,
+               has_items( CompletionEntryMatcher( 'foosy' ),
+                          CompletionEntryMatcher( 'fooaaa' ) ) )
+
+
 @SharedYcmd
 def GetCompletions_UltiSnipsCompleter_Works_test( app ):
   event_data = BuildRequest(

ycmd/tests/testdata/basic.tags

@@ -0,0 +1,10 @@
+!_TAG_FILE_FORMAT	2	/extended format; --format=1 will not append ;" to lines/
+!_TAG_FILE_SORTED	2	/0=unsorted, 1=sorted, 2=foldcase/
+!_TAG_PROGRAM_AUTHOR	Darren Hiebert	/[email protected]/
+!_TAG_PROGRAM_NAME	Exuberant Ctags	//
+!_TAG_PROGRAM_URL	http://ctags.sourceforge.net	/official site/
+!_TAG_PROGRAM_VERSION	5.8	//
+i1	foo	junky;'junklanguage:C++
+i1	bar	junky;'junklanguage:C++
+foosy	foo	junky;"'junk	language:C++	zanzibar
+fooaaa	bar	junky;"'junk	language:C++	zanzibar