config tests refactored.

setuptools/tests/test_config.py

@@ -9,6 +9,13 @@ class ErrConfigHandler(ConfigHandler):
     """Erroneous handler. Fails to implement required methods."""
 
 
+def make_package_dir(name, base_dir):
+    dir_package = base_dir.mkdir(name)
+    init_file = dir_package.join('__init__.py')
+    init_file.write('')
+    return dir_package, init_file
+
+
 def fake_env(tmpdir, setup_cfg, setup_py=None):
 
     if setup_py is None:
@@ -18,11 +25,12 @@ def fake_env(tmpdir, setup_cfg, setup_py=None):
         )
 
     tmpdir.join('setup.py').write(setup_py)
-    tmpdir.join('setup.cfg').write(setup_cfg)
+    config = tmpdir.join('setup.cfg')
+    config.write(setup_cfg)
+
+    package_dir, init_file = make_package_dir('fake_package', tmpdir)
 
-    package_name = 'fake_package'
-    dir_package = tmpdir.mkdir(package_name)
-    dir_package.join('__init__.py').write(
+    init_file.write(
         'VERSION = (1, 2, 3)\n'
         '\n'
         'VERSION_MAJOR = 1'
@@ -31,6 +39,7 @@ def fake_env(tmpdir, setup_cfg, setup_py=None):
         '    return [3, 4, 5, "dev"]\n'
         '\n'
     )
+    return package_dir, config
 
 
 @contextlib.contextmanager
@@ -55,7 +64,7 @@ def test_parsers_implemented():
 class TestConfigurationReader:
 
     def test_basic(self, tmpdir):
-        fake_env(
+        _, config = fake_env(
             tmpdir,
             '[metadata]\n'
             'version = 10.1.1\n'
@@ -64,7 +73,7 @@ class TestConfigurationReader:
             '[options]\n'
             'scripts = bin/a.py, bin/b.py\n'
         )
-        config_dict = read_configuration('%s' % tmpdir.join('setup.cfg'))
+        config_dict = read_configuration('%s' % config)
         assert config_dict['metadata']['version'] == '10.1.1'
         assert config_dict['metadata']['keywords'] == ['one', 'two']
         assert config_dict['options']['scripts'] == ['bin/a.py', 'bin/b.py']
@@ -74,17 +83,17 @@ class TestConfigurationReader:
             read_configuration('%s' % tmpdir.join('setup.cfg'))
 
     def test_ignore_errors(self, tmpdir):
-        fake_env(
+        _, config = fake_env(
             tmpdir,
             '[metadata]\n'
             'version = attr: none.VERSION\n'
             'keywords = one, two\n'
         )
         with pytest.raises(ImportError):
-            read_configuration('%s' % tmpdir.join('setup.cfg'))
+            read_configuration('%s' % config)
 
         config_dict = read_configuration(
-            '%s' % tmpdir.join('setup.cfg'), ignore_option_errors=True)
+            '%s' % config, ignore_option_errors=True)
 
         assert config_dict['metadata']['keywords'] == ['one', 'two']
         assert 'version' not in config_dict['metadata']
@@ -188,7 +197,7 @@ class TestMetadata:
 
     def test_version(self, tmpdir):
 
-        fake_env(
+        _, config = fake_env(
             tmpdir,
             '[metadata]\n'
             'version = attr: fake_package.VERSION\n'
@@ -196,14 +205,14 @@ class TestMetadata:
         with get_dist(tmpdir) as dist:
             assert dist.metadata.version == '1.2.3'
 
-        tmpdir.join('setup.cfg').write(
+        config.write(
             '[metadata]\n'
             'version = attr: fake_package.get_version\n'
         )
         with get_dist(tmpdir) as dist:
             assert dist.metadata.version == '3.4.5.dev'
 
-        tmpdir.join('setup.cfg').write(
+        config.write(
             '[metadata]\n'
             'version = attr: fake_package.VERSION_MAJOR\n'
         )
@@ -214,7 +223,7 @@ class TestMetadata:
         subpack.join('__init__.py').write('')
         subpack.join('submodule.py').write('VERSION = (2016, 11, 26)')
 
-        tmpdir.join('setup.cfg').write(
+        config.write(
             '[metadata]\n'
             'version = attr: fake_package.subpackage.submodule.VERSION\n'
         )
@@ -250,7 +259,7 @@ class TestMetadata:
         ])
 
         # From file.
-        fake_env(
+        _, config = fake_env(
             tmpdir,
             '[metadata]\n'
             'classifiers = file: classifiers\n'
@@ -265,7 +274,7 @@ class TestMetadata:
             assert set(dist.metadata.classifiers) == expected
 
         # From section.
-        tmpdir.join('setup.cfg').write(
+        config.write(
             '[metadata.classifiers]\n'
             'Framework :: Django\n'
             'Programming Language :: Python :: 3.5\n'
@@ -454,7 +463,7 @@ class TestOptions:
             }
 
     def test_entry_points(self, tmpdir):
-        fake_env(
+        _, config = fake_env(
             tmpdir,
             '[options.entry_points]\n'
             'group1 = point1 = pack.module:func, '
@@ -479,7 +488,7 @@ class TestOptions:
         tmpdir.join('entry_points').write(expected)
 
         # From file.
-        tmpdir.join('setup.cfg').write(
+        config.write(
             '[options]\n'
             'entry_points = file: entry_points\n'
         )