Have test_mkalias_relative check that sys.prefix already exists; otherwise test
is pointless.
Also add a note to the docs for the 'test' package that test cases should check
first that any conditions needed in the operating system are met before having
a test run.
Closes bug #1077302. THanks, Ian Holsman.
diff --git a/Lib/test/test_macostools.py b/Lib/test/test_macostools.py
index 9ed2d81..f3292ce 100644
--- a/Lib/test/test_macostools.py
+++ b/Lib/test/test_macostools.py
@@ -75,6 +75,12 @@
os.unlink(TESTFN2)
except:
pass
+ # If the directory doesn't exist, then chances are this is a new
+ # install of Python so don't create it since the user might end up
+ # running ``sudo make install`` and creating the directory here won't
+ # leave it with the proper permissions.
+ if not os.path.exists(sys.prefix):
+ return
macostools.mkalias(test_support.TESTFN, TESTFN2, sys.prefix)
fss, _, _ = Carbon.File.ResolveAliasFile(TESTFN2, 0)
self.assertEqual(fss.as_pathname(), os.path.realpath(test_support.TESTFN))