1 files changed, 32 insertions, 19 deletions
diff --git a/setuptools/tests/test_build_meta.py b/setuptools/tests/test_build_meta.py
index 8fcf3055..5462b26a 100644
--- a/setuptools/tests/test_build_meta.py
+++ b/setuptools/tests/test_build_meta.py
@@ -1,20 +1,13 @@
-from __future__ import unicode_literals
-
 import os
 import shutil
 import tarfile
+import importlib
+from concurrent import futures
 
 import pytest
 
 from .files import build_files
 from .textwrap import DALS
-from . import py2_only
-
-__metaclass__ = type
-
-# Backports on Python 2.7
-import importlib
-from concurrent import futures
 
 
 class BuildBackendBase:
@@ -220,15 +213,6 @@ class TestBuildMetaBackend:
 
         assert os.path.isfile(os.path.join(dist_dir, dist_info, 'METADATA'))
 
-    @py2_only
-    def test_prepare_metadata_for_build_wheel_with_str(self, build_backend):
-        dist_dir = os.path.abspath(str('pip-dist-info'))
-        os.makedirs(dist_dir)
-
-        dist_info = build_backend.prepare_metadata_for_build_wheel(dist_dir)
-
-        assert os.path.isfile(os.path.join(dist_dir, dist_info, 'METADATA'))
-
     def test_build_sdist_explicit_dist(self, build_backend):
         # explicitly specifying the dist folder should work
         # the folder sdist_directory and the ``--dist-dir`` can be the same
@@ -380,7 +364,7 @@ class TestBuildMetaBackend:
                 setup(
                     name="qux",
                     version="0.0.0",
-                    py_modules=["hello.py"],
+                    py_modules=["hello"],
                     setup_requires={setup_literal},
                 )
             """).format(setup_literal=setup_literal),
@@ -407,6 +391,35 @@ class TestBuildMetaBackend:
 
         assert expected == sorted(actual)
 
+    def test_dont_install_setup_requires(self, tmpdir_cwd):
+        files = {
+            'setup.py': DALS("""
+                        from setuptools import setup
+
+                        setup(
+                            name="qux",
+                            version="0.0.0",
+                            py_modules=["hello"],
+                            setup_requires=["does-not-exist >99"],
+                        )
+                    """),
+            'hello.py': DALS("""
+                    def run():
+                        print('hello')
+                    """),
+        }
+
+        build_files(files)
+
+        build_backend = self.get_build_backend()
+
+        dist_dir = os.path.abspath('pip-dist-info')
+        os.makedirs(dist_dir)
+
+        # does-not-exist can't be satisfied, so if it attempts to install
+        # setup_requires, it will fail.
+        build_backend.prepare_metadata_for_build_wheel(dist_dir)
+
     _sys_argv_0_passthrough = {
         'setup.py': DALS("""
             import os