better parsing of comments, fix #99

CHANGES.rst

@@ -1,6 +1,12 @@
 Changelog
 =========
 
+2.6.2
+-----
+
+- Parse comments only in the begining of words
+
+
 2.6.1
 -----
 

pytest_bdd/__init__.py

@@ -1,6 +1,6 @@
 """pytest-bdd public API."""
 
-__version__ = '2.6.1'
+__version__ = '2.6.2'
 
 try:
     from pytest_bdd.steps import given, when, then

pytest_bdd/feature.py

@@ -64,9 +64,8 @@ STEP_PREFIXES = [
     ("And ", None),  # Unknown step type,
 ]
 
-COMMENT_SYMBOLS = "#"
-
 STEP_PARAM_RE = re.compile("\<(.+?)\>")
+COMMENT_RE = re.compile('(^|(?<=\s))#')
 
 
 def get_step_type(line):
@@ -88,10 +87,9 @@ def strip_comments(line):
 
     :return: Stripped line.
     """
-    try:
-        line = line[:line.index(COMMENT_SYMBOLS)]
-    except ValueError:
-        pass
+    res = COMMENT_RE.search(line)
+    if res:
+        line = line[:res.start()]
     return line.strip()
 
 

tests/feature/comments.feature

@@ -1,3 +1,8 @@
 Scenario: Comments
     # Comment
     Given I have a bar
+
+Scenario: Strings that are not comments
+    Given comments should be at the start of words
+    Then this is not a#comment
+    And this is not "#acomment"

tests/feature/test_scenario.py

@@ -1,8 +1,14 @@
 """Test scenario decorator."""
 import pytest
+import re
 
-from pytest_bdd import scenario
-from pytest_bdd import exceptions
+from pytest_bdd import (
+    scenario,
+    given,
+    then,
+    parsers,
+    exceptions,
+)
 
 
 def test_scenario_not_found(request):
@@ -17,6 +23,16 @@ def test_scenario_not_found(request):
         feature_path=request.fspath.join('..', 'not_found.feature')))
 
 
+@given('comments should be at the start of words')
+def comments():
+    pass
+
+
+@then(parsers.parse('this is not {acomment}'))
+def a_comment(acomment):
+    assert re.search('a.*comment', acomment)
+
+
 def test_scenario_comments(request):
     """Test comments inside scenario."""
 
@@ -27,4 +43,12 @@ def test_scenario_comments(request):
     def test():
         pass
 
+    @scenario(
+        'comments.feature',
+        'Strings that are not comments'
+    )
+    def test2():
+        pass
+
     test(request)
+    test2(request)