Fix all failing unit tests on Windows

Fixes #11
Fixes #24

src/awscli_login/util.py

@@ -166,5 +166,6 @@ def secure_touch(path):
         path - A path to a file.
     """
     fd = os.open(path, os.O_CREAT | os.O_RDONLY, mode=0o600)
-    os.fchmod(fd, 0o600)
+    if hasattr(os, "fchmod"):
+        os.fchmod(fd, 0o600)
     os.close(fd)

src/tests/base.py

@@ -9,8 +9,6 @@
 from typing import Any, Callable, List, Optional  # NOQA
 from unittest.mock import patch
 
-from wurlitzer import pipes
-
 from awscli_login.config import CONFIG_FILE
 
 from .util import exec_awscli, isFileChangedBy, isFileTouchedBy, tree
@@ -603,9 +601,36 @@ def assertAwsCliReturns(self, *args, stdout='', stderr='', code=0):
         Raises:
             AssertionError
         """
-        try:
-            with pipes() as (out, err):
-                with self.assertRaises(SystemExit) as e:
+        t_out, t_err, t_code, cmd = _assertAwsCliReturns(args, calls)
+
+        mesg = "Error: ran '%s', on %s expected output: %s"
+        self.assertEqual(
+            t_out,
+            stdout,
+            mesg % (cmd, 'stdout', stdout)
+        )
+        self.assertEqual(
+            t_err,
+            stderr,
+            mesg % (cmd, 'stderr', stderr)
+        )
+        self.assertEqual(
+            t_code,
+            code,
+            "Error: '%s' returned %d, expected: %d" %
+            (cmd, t_code, code)
+        )
+
+
+@fork()
+def _assertAwsCliReturns(args, calls):
+    t_code = None
+
+    try:
+        from wurlitzer import pipes
+        with pipes() as (out, err):
+            try:
+                with patch('builtins.input', return_value='') as mock:
                     exec_awscli(*args)
 
             import sys

src/tests/test_util.py

@@ -270,7 +270,8 @@ def test_secure_touch_function_creates_file(self):
         secure_touch(path)
 
         self.assertTrue(isfile(path), 'Failed to create file!')
-        self.assertHasFilePerms(path, owner='rw')
+        if os.name == 'posix':
+            self.assertHasFilePerms(path, owner='rw')
 
     def test_secure_touch_function_changes_perms(self):
         """File with perms 0x644 should be 0x600 after secure_touch. """
@@ -280,7 +281,8 @@ def test_secure_touch_function_changes_perms(self):
         os.close(fd)
 
         secure_touch(path)
-        self.assertHasFilePerms(path, owner='rw')
+        if os.name == 'posix':
+            self.assertHasFilePerms(path, owner='rw')
 
 
 if __name__ == '__main__':

tox.ini

@@ -2,6 +2,8 @@
 envlist = py35,py36,py37,py38,py39
 
 [testenv]
+# getpass.getuser fails on Windows if these envs are not passed in
+passenv = LOGNAME USER LNAME USERNAME
 # https://packaging.python.org/guides/index-mirrors-and-caches/#caching-with-pip
 install_command=python -m pip install --disable-pip-version-check --find-links=cache {opts} {packages}
 commands = python -m unittest discover -s src {posargs}