Expand short paths on windows during testing

- Fixes #2132

Signed-off-by: Dan Ryan <dan@danryan.co>

tests/integration/conftest.py

@@ -10,6 +10,11 @@ from pipenv.vendor import requests
 from pipenv.vendor import six
 from pipenv.vendor import toml
 
+try:
+    from pathlib import Path
+except ImportError:
+    from pipenv.vendor.pathlib2 import Path
+
 
 if six.PY2:
     class ResourceWarning(Warning):
@@ -45,7 +50,7 @@ class _PipenvInstance(object):
         self.original_umask = os.umask(0o007)
         self.original_dir = os.path.abspath(os.curdir)
         self._path = TemporaryDirectory(suffix='-project', prefix='pipenv-')
-        self.path = self._path.name
+        self.path = str(Path(self._path.name).resolve())
         # set file creation perms
         self.pipfile_path = None
         self.chdir = chdir