add placeholders in step's title feature (fixes #47 via #52)

* add placeholders in step's title feature

* .

* fix comment in tox.ini

Author: sseliverstov

allure-pytest/src/allure/helper.py

@@ -99,7 +99,7 @@ def __call__(self, func):
         def impl(*a, **kw):
             __tracebackhide__ = True
             params = step_parameters(func, *a, **kw)
-            with StepContext(self.allure, self.title, params):
+            with StepContext(self.allure, self.title.format(*a, **kw), params):
                 return func(*a, **kw)
         return impl
 

allure-pytest/test/steps/placeholders_in_steps_test.py

@@ -0,0 +1,69 @@
+"""
+>>> allure_report = getfixture('allure_report')
+
+>>> assert_that(allure_report,
+...             all_of(
+...                 has_property('test_cases', has_length(6)),
+...                 has_property('test_groups', has_length(0))
+...             ))  # doctest: +SKIP
+"""
+
+import pytest
+
+
+@pytest.allure.step('arg is {0}')
+def step_with_equal_args(step_arg_param):
+    assert step_arg_param
+
+
+def test_equal_args_and_places():
+    """
+    >>> allure_report = getfixture('allure_report')
+    >>> assert_that(allure_report,
+    ...             has_test_case('test_equal_args_and_places',
+    ...                           has_step('arg is {0}'.format(True),
+    ...                                    has_parameter('step_arg_param', True)
+    ...                           )
+    ...             )
+    ... )
+    """
+    step_with_equal_args(True)
+
+
+@pytest.allure.step('arg is {0}')
+def step_places_less(step_arg_param1, step_arg_param2):
+    assert step_arg_param1 and step_arg_param2
+
+
+def test_places_less():
+    """
+    >>> allure_report = getfixture('allure_report')
+    >>> assert_that(allure_report,
+    ...             has_test_case('test_places_less',
+    ...                           has_step('arg is {0}'.format(True, True),
+    ...                                    has_parameter('step_arg_param1', True),
+    ...                                    has_parameter('step_arg_param2', True)
+    ...                           )
+    ...             )
+    ... )
+    """
+    step_places_less(True, True)
+
+
+@pytest.allure.step('arg are {0} and {1}')
+def step_args_less(step_arg_param,):
+    assert step_arg_param
+
+
+def test_args_less():
+    """
+    >>> allure_report = getfixture('allure_report')
+    >>> assert_that(allure_report,
+    ...             has_test_case('test_args_less',
+    ...                           has_status_details(
+    ...                                              with_status_message('IndexError: tuple index out of range')
+    ...                           )
+    ...             )
+    ... )
+    """
+    step_args_less(True)

allure-pytest/tox.ini

@@ -14,16 +14,25 @@ deps=
 commands=
     python setup.py develop
     rm -f {envtmpdir}/*.json
-    py.test --doctest-module --alluredir={envtmpdir} ./test/
+    py.test --doctest-module --alluredir={envtmpdir} {posargs: ./test/}
 
 
+# Run tests without result checking. It is useful for:
+# 1. Getting demo report: `tox -e demo`
+# 2. Executing separate test:
+#    `tox -e demo -- -k test_single_feature_label` or
+#    `tox -e demo -- ./test/steps/`
 [testenv:demo]
 whitelist_externals = rm
 
+setenv =
+    ALLURE_INDENT_OUTPUT=yep
+
 commands=
     python setup.py develop
     rm -f {envtmpdir}/*.json
-    - py.test --alluredir={envtmpdir} ./test/
+    - py.test -v --alluredir={envtmpdir} {posargs: ./test/}
+
 
 [testenv:static_check]
 deps=