fix(make): add pip install to makefile

Makefile

@@ -38,6 +38,7 @@ lint:
 	flake8 pipreqs tests
 
 test:
+	pip install -r requirements.txt
 	python setup.py test
 
 test-all:

pipreqs/mapping

@@ -68,7 +68,6 @@ distutils2:Distutils2
 django:Django
 dns:dnspython
 docker:docker_py
-docopt:docopt_unicode
 dogshell:dogapi
 dpkt:dpkt_fix
 dsml:python_ldap

setup.py

@@ -18,10 +18,6 @@ requirements = [
     'docopt', 'yarg'
 ]
 
-test_requirements = [
-    'docopt', 'yarg'
-]
-
 setup(
     name='pipreqs',
     version='0.2.3',
@@ -54,7 +50,6 @@ setup(
         'Programming Language :: Python :: 3.4',
     ],
     test_suite='tests',
-    tests_require=test_requirements,
     entry_points={
         'console_scripts': [
             'pipreqs=pipreqs.pipreqs:main',