Stop leaving temp files after unit test runs

test_shell.CLOUD_2 is using an absolute path for a temp
file, so leaves /tmp/test_log_file around after the unit
tests are run.  Use a fixture instead so it's cleaned
automatically, which also removes the possibility of two
tests using the same file and interfering with each other.

Change-Id: If722b860be4010b91635c6d46f634da980e17152

Author: Brian Haley

openstackclient/tests/unit/integ/cli/test_shell.py

@@ -12,6 +12,7 @@
 
 import copy
 
+import fixtures
 import mock
 from osc_lib.tests import utils as osc_lib_utils
 
@@ -399,6 +400,16 @@ def setUp(self):
         test_shell.PUBLIC_1['public-clouds']['megadodo']['auth']['auth_url'] \
             = test_base.V3_AUTH_URL
 
+    def get_temp_file_path(self, filename):
+        """Returns an absolute path for a temporary file.
+
+        :param filename: filename
+        :type filename: string
+        :returns: absolute file path string
+        """
+        temp_dir = self.useFixture(fixtures.TempDir())
+        return temp_dir.join(filename)
+
     @mock.patch(CONFIG_MOCK_BASE + ".OpenStackConfig._load_vendor_file")
     @mock.patch(CONFIG_MOCK_BASE + ".OpenStackConfig._load_config_file")
     def test_shell_args_precedence_1(self, config_mock, vendor_mock):
@@ -408,7 +419,9 @@ def test_shell_args_precedence_1(self, config_mock, vendor_mock):
         """
 
         def config_mock_return():
-            return ('file.yaml', copy.deepcopy(test_shell.CLOUD_2))
+            log_file = self.get_temp_file_path('test_log_file')
+            cloud2 = test_shell.get_cloud(log_file)
+            return ('file.yaml', cloud2)
         config_mock.side_effect = config_mock_return
 
         def vendor_mock_return():
@@ -478,7 +491,9 @@ def test_shell_args_precedence_2(self, config_mock, vendor_mock):
         """
 
         def config_mock_return():
-            return ('file.yaml', copy.deepcopy(test_shell.CLOUD_2))
+            log_file = self.get_temp_file_path('test_log_file')
+            cloud2 = test_shell.get_cloud(log_file)
+            return ('file.yaml', cloud2)
         config_mock.side_effect = config_mock_return
 
         def vendor_mock_return():

openstackclient/tests/unit/test_shell.py

@@ -70,23 +70,6 @@
     }
 }
 
-CLOUD_2 = {
-    'clouds': {
-        'megacloud': {
-            'cloud': 'megadodo',
-            'auth': {
-                'project_name': 'heart-o-gold',
-                'username': 'zaphod',
-            },
-            'region_name': 'occ-cloud,krikkit,occ-env',
-            'log_file': '/tmp/test_log_file',
-            'log_level': 'debug',
-            'cert': 'mycert',
-            'key': 'mickey',
-        }
-    }
-}
-
 PUBLIC_1 = {
     'public-clouds': {
         'megadodo': {
@@ -118,6 +101,26 @@
 }
 
 
+def get_cloud(log_file):
+    CLOUD = {
+        'clouds': {
+            'megacloud': {
+                'cloud': 'megadodo',
+                'auth': {
+                    'project_name': 'heart-o-gold',
+                    'username': 'zaphod',
+                },
+                'region_name': 'occ-cloud,krikkit,occ-env',
+                'log_file': log_file,
+                'log_level': 'debug',
+                'cert': 'mycert',
+                'key': 'mickey',
+            }
+        }
+    }
+    return CLOUD
+
+
 # Wrap the osc_lib make_shell() function to set the shell class since
 # osc-lib's TestShell class doesn't allow us to specify it yet.
 # TODO(dtroyer): remove this once the shell_class_patch patch is released