fix `test` command handling of `extras_require`

Also install platform specific requirements in `extras_require`.

1 files changed, 7 insertions, 3 deletions

diff --git a/setuptools/command/test.py b/setuptools/command/test.py
index b8863fdc..638d0c56 100644
--- a/setuptools/command/test.py
+++ b/setuptools/command/test.py
@@ -11,7 +11,7 @@ from setuptools.extern import six
 from setuptools.extern.six.moves import map, filter
 
 from pkg_resources import (resource_listdir, resource_exists, normalize_path,
-                           working_set, _namespace_packages,
+                           working_set, _namespace_packages, evaluate_marker,
                            add_activation_listener, require, EntryPoint)
 from setuptools import Command
 from setuptools.py31compat import unittest_main
@@ -191,9 +191,13 @@ class test(Command):
         Install the requirements indicated by self.distribution and
         return an iterable of the dists that were built.
         """
-        ir_d = dist.fetch_build_eggs(dist.install_requires or [])
+        ir_d = dist.fetch_build_eggs(dist.install_requires)
         tr_d = dist.fetch_build_eggs(dist.tests_require or [])
-        return itertools.chain(ir_d, tr_d)
+        er_d = dist.fetch_build_eggs(
+            v for k, v in dist.extras_require.items()
+            if k.startswith(':') and evaluate_marker(k[1:])
+        )
+        return itertools.chain(ir_d, tr_d, er_d)
 
     def run(self):
         installed_dists = self.install_dists(self.distribution)