Merge branch 'release/3.13.2' into master

MANIFEST.in

@@ -1,6 +1,8 @@
 recursive-include src/dependency_injector *.py *.pyx *.pxd *.c
+recursive-include tests *.py
 include README.rst
 include CONTRIBUTORS.rst
 include LICENSE.rst
 include requirements.txt
 include setup.py
+include tox.ini

docs/main/changelog.rst

@@ -7,6 +7,13 @@ that were made in every particular version.
 From version 0.7.6 *Dependency Injector* framework strictly 
 follows `Semantic versioning`_
 
+3.13.2
+------
+- Add additional benchmark of ``Factory`` provider.
+- Add tests and tox.ini to the distribution, so that they could be used after
+  package is installed (thanks to
+  `Tobias Happ <https://github.com/Gerschtli>`_).
+
 3.13.1
 ------
 - Fix typo on "Chained Factories" pattern docs page.

src/dependency_injector/__init__.py

@@ -1,6 +1,6 @@
 """Dependency injector top-level package."""
 
-__version__ = '3.13.1'
+__version__ = '3.13.2'
 """Version number that follows semantic versioning.
 
 :type: str

tests/performance/factory_benchmark_1.py

@@ -0,0 +1,90 @@
+"""Dependency Injector Factory providers benchmark."""
+
+import time
+
+from dependency_injector import providers
+
+
+N = 1000000
+
+
+class A(object):
+    pass
+
+
+class B(object):
+    pass
+
+
+class C(object):
+    pass
+
+
+class Test(object):
+    def __init__(self, a, b, c):
+        self.a = a
+        self.b = b
+        self.c = c
+
+
+# Testing Factory provider
+
+test_factory_provider = providers.Factory(
+    Test,
+    a=providers.Factory(A),
+    b=providers.Factory(B),
+    c=providers.Factory(C),
+)
+
+start = time.time()
+for _ in range(1, N):
+    test_factory_provider()
+finish = time.time()
+
+print(finish - start)
+
+
+# Testing simple analog
+
+def test_simple_factory_provider():
+    return Test(a=A(), b=B(), c=C())
+
+
+start = time.time()
+for _ in range(1, N):
+    test_simple_factory_provider()
+finish = time.time()
+
+print(finish - start)
+
+# ------
+# Result
+# ------
+#
+# Python 2.7
+#
+# $ python tests/performance/factory_benchmark_1.py
+# 0.87456202507
+# 0.879760980606
+#
+# $ python tests/performance/factory_benchmark_1.py
+# 0.949290990829
+# 0.853044986725
+#
+# $ python tests/performance/factory_benchmark_1.py
+# 0.964688062668
+# 0.857432842255
+#
+# Python 3.7.0
+#
+# $ python tests/performance/factory_benchmark_1.py
+# 1.1037120819091797
+# 0.999565839767456
+#
+# $ python tests/performance/factory_benchmark_1.py
+# 1.0855588912963867
+# 1.0008318424224854
+#
+# $ python tests/performance/factory_benchmark_1.py
+# 1.0706679821014404
+# 1.0106139183044434