Make feature and scenario tags to be fully compartible with pytest markers. closes #112

CHANGES.rst

@@ -1,6 +1,11 @@
 Changelog
 =========
 
+2.10.0
+------
+
+- Make feature and scenario tags to be fully compartible with pytest markers (bubenkoff, kevinastone)
+
 2.9.1
 -----
 

README.rst

@@ -646,11 +646,14 @@ scenario test, so we can use standard test selection:
 
 .. code-block:: bash
 
-    py.test -k "@backend and @login and @successful"
+    py.test -k "backend and login and successful"
 
-The `@` helps to separate normal markers from the bdd ones.
+The feature and scenario markers are not different from standard pytest markers, and the `@` symbol is stripped out
+automatically to allow test selector expressions. If you want to have bdd-related tags to be distinguishable from the
+other test markers, use prefix like `bdd`.
 Note that if you use pytest `--strict` option, all bdd tags mentioned in the feature files should be also in the
-`markers` setting of the `pytest.ini` config.
+`markers` setting of the `pytest.ini` config. Also for tags please use names which are python-compartible variable
+names, eg starts with a non-number, underscore alphanumberic, etc. That way you can safely use tags for tests filtering.
 
 
 Test setup

pytest_bdd/__init__.py

@@ -1,6 +1,6 @@
 """pytest-bdd public API."""
 
-__version__ = '2.9.1'
+__version__ = '2.10.0'
 
 try:
     from pytest_bdd.steps import given, when, then

pytest_bdd/feature.py

@@ -146,7 +146,7 @@ def get_tags(line):
     :return: List of tags.
     """
     return (
-        set((tag for tag in line.split() if tag.startswith("@") and len(tag) > 1))
+        set((tag[1:] for tag in line.split() if tag.startswith("@") and len(tag) > 1))
         if line else set()
     )
 

tests/feature/tags.feature

@@ -1,10 +1,10 @@
-@feature-tag-1 @feature-tag-2
+@feature_tag_1 @feature_tag_2
 Feature: Tags
 
-    @scenario-tag-1 @scenario-tag-2
+    @scenario_tag_1 @scenario_tag_2
     Scenario: Tags
         Given I have a bar
 
-    @scenario-tag-10 @scenario-tag-20
+    @scenario_tag_10 @scenario_tag_20
     Scenario: Tags 2
         Given I have a bar

tests/feature/test_cucumber_json.py

@@ -110,7 +110,7 @@ def test_step_trace(testdir):
                     ],
                     "tags": [
                         {
-                            'name': '@scenario-passing-tag',
+                            'name': 'scenario-passing-tag',
                             'line': 4,
                         }
                     ],
@@ -151,7 +151,7 @@ def test_step_trace(testdir):
                     ],
                     "tags": [
                         {
-                            'name': '@scenario-failing-tag',
+                            'name': 'scenario-failing-tag',
                             'line': 9,
                         }
                     ],
@@ -164,7 +164,7 @@ def test_step_trace(testdir):
             "name": "One passing scenario, one failing scenario",
             "tags": [
                 {
-                    'name': '@feature-tag',
+                    'name': 'feature-tag',
                     'line': 1,
                 }
             ],

tests/feature/test_tags.py

@@ -11,13 +11,53 @@ def test_tags(request):
     def test():
         pass
 
-    assert test.__scenario__.tags == set(['@scenario-tag-1', '@scenario-tag-2'])
-    assert test.__scenario__.feature.tags == set(['@feature-tag-1', '@feature-tag-2'])
+    assert test.__scenario__.tags == set(['scenario_tag_1', 'scenario_tag_2'])
+    assert test.__scenario__.feature.tags == set(['feature_tag_1', 'feature_tag_2'])
 
-    assert getattr(test, '@scenario-tag-1')
-    assert getattr(test, '@scenario-tag-2')
+    assert getattr(test, 'scenario_tag_1')
+    assert getattr(test, 'scenario_tag_2')
 
-    assert getattr(test, '@feature-tag-1')
-    assert getattr(test, '@feature-tag-2')
+    assert getattr(test, 'feature_tag_1')
+    assert getattr(test, 'feature_tag_2')
 
     test(request)
+
+
+def test_tags_selector(testdir):
+    """Test tests selection by tags."""
+    testdir.makefile('.feature', test="""
+    @feature_tag_1 @feature_tag_2
+    Feature: Tags
+
+    @scenario_tag_01 @scenario_tag_02
+    Scenario: Tags
+        Given I have a bar
+
+    @scenario_tag_10 @scenario_tag_20
+    Scenario: Tags 2
+        Given I have a bar
+
+    """)
+    testdir.makepyfile("""
+        import pytest
+        from pytest_bdd import given, scenarios
+
+        @given('I have a bar')
+        def i_have_bar():
+            return 'bar'
+
+        scenarios('test.feature')
+    """)
+    result = testdir.runpytest('-k', 'scenario_tag_10 and not scenario_tag_01', '-vv').parseoutcomes()
+    assert result['passed'] == 1
+    assert result['deselected'] == 1
+
+    result = testdir.runpytest('-k', 'scenario_tag_01 and not scenario_tag_10', '-vv').parseoutcomes()
+    assert result['passed'] == 1
+    assert result['deselected'] == 1
+
+    result = testdir.runpytest('-k', 'feature_tag_1', '-vv').parseoutcomes()
+    assert result['passed'] == 2
+
+    result = testdir.runpytest('-k', 'feature_tag_10', '-vv').parseoutcomes()
+    assert result['deselected'] == 2