Fix unit tests which modify the source tree. (#45763)

* Fix CNOS unit test log usage.
* Use temp dir for Galaxy unit tests.
* Write to temp files in interfaces_file unit test.
* Fix log placement in netapp_e_ldap unit test.

(cherry picked from commit 0686450cae)

test/units/cli/test_galaxy.py

@@ -39,6 +39,9 @@ class TestGalaxy(unittest.TestCase):
         '''creating prerequisites for installing a role; setUpClass occurs ONCE whereas setUp occurs with every method tested.'''
         # class data for easy viewing: role_dir, role_tar, role_name, role_req, role_path
 
+        cls.temp_dir = tempfile.mkdtemp(prefix='ansible-test_galaxy-')
+        os.chdir(cls.temp_dir)
+
         if os.path.exists("./delete_me"):
             shutil.rmtree("./delete_me")
 
@@ -89,6 +92,9 @@ class TestGalaxy(unittest.TestCase):
         if os.path.isdir(cls.role_path):
             shutil.rmtree(cls.role_path)
 
+        os.chdir('/')
+        shutil.rmtree(cls.temp_dir)
+
     def setUp(self):
         self.default_args = ['ansible-galaxy']
 

test/units/modules/network/cnos/cnos_module.py

@@ -21,6 +21,7 @@ __metaclass__ = type
 
 import os
 import json
+import tempfile
 
 from ansible.compat.tests import unittest
 from ansible.compat.tests.mock import patch
@@ -63,6 +64,15 @@ class AnsibleFailJson(Exception):
 
 
 class TestCnosModule(unittest.TestCase):
+    def setUp(self):
+        super(TestCnosModule, self).setUp()
+
+        self.test_log = tempfile.mkstemp(prefix='ansible-test-cnos-module-', suffix='.log')[1]
+
+    def tearDown(self):
+        super(TestCnosModule, self).tearDown()
+
+        os.remove(self.test_log)
 
     def execute_module(self, failed=False, changed=False, commands=None,
                        sort=True, defaults=False):

test/units/modules/system/interfaces_file/test_interfaces_file.py

@@ -23,6 +23,8 @@ import io
 import inspect
 from shutil import copyfile, move
 import difflib
+import tempfile
+import shutil
 
 
 class AnsibleFailJson(Exception):
@@ -169,25 +171,29 @@ class TestInterfacesFileModule(unittest.TestCase):
         }
         for testname, options_list in testcases.items():
             for testfile in self.getTestFiles():
-                path = os.path.join(fixture_path, testfile)
-                lines, ifaces = interfaces_file.read_interfaces_file(module, path)
-                backupp = module.backup_local(path)
-                options = options_list[0]
-                for state in ['present', 'absent']:
-                    fail_json_iterations = []
-                    options['state'] = state
-                    try:
-                        _, lines = interfaces_file.setInterfaceOption(module, lines, options['iface'], options['option'], options['value'], options['state'])
-                    except AnsibleFailJson as e:
-                        fail_json_iterations.append("fail_json message: %s\noptions:\n%s" %
-                                                    (str(e), json.dumps(options, sort_keys=True, indent=4, separators=(',', ': '))))
-                    interfaces_file.write_changes(module, [d['line'] for d in lines if 'line' in d], path)
-
-                self.compareStringWithFile("\n=====\n".join(fail_json_iterations), "%s_%s.exceptions.txt" % (testfile, testname))
-
-                self.compareInterfacesLinesToFile(lines, testfile, "%s_%s" % (testfile, testname))
-                self.compareInterfacesToFile(ifaces, testfile, "%s_%s.json" % (testfile, testname))
-                self.compareFileToBackup(path, backupp)
+                with tempfile.NamedTemporaryFile() as temp_file:
+                    src_path = os.path.join(fixture_path, testfile)
+                    path = temp_file.name
+                    shutil.copy(src_path, path)
+                    lines, ifaces = interfaces_file.read_interfaces_file(module, path)
+                    backupp = module.backup_local(path)
+                    options = options_list[0]
+                    for state in ['present', 'absent']:
+                        fail_json_iterations = []
+                        options['state'] = state
+                        try:
+                            _, lines = interfaces_file.setInterfaceOption(module, lines,
+                                                                          options['iface'], options['option'], options['value'], options['state'])
+                        except AnsibleFailJson as e:
+                            fail_json_iterations.append("fail_json message: %s\noptions:\n%s" %
+                                                        (str(e), json.dumps(options, sort_keys=True, indent=4, separators=(',', ': '))))
+                        interfaces_file.write_changes(module, [d['line'] for d in lines if 'line' in d], path)
+
+                    self.compareStringWithFile("\n=====\n".join(fail_json_iterations), "%s_%s.exceptions.txt" % (testfile, testname))
+
+                    self.compareInterfacesLinesToFile(lines, testfile, "%s_%s" % (testfile, testname))
+                    self.compareInterfacesToFile(ifaces, testfile, "%s_%s.json" % (testfile, testname))
+                    self.compareFileToBackup(path, backupp)
 
     def test_change_method(self):
         testcases = {
@@ -202,21 +208,24 @@ class TestInterfacesFileModule(unittest.TestCase):
         }
         for testname, options_list in testcases.items():
             for testfile in self.getTestFiles():
-                path = os.path.join(fixture_path, testfile)
-                lines, ifaces = interfaces_file.read_interfaces_file(module, path)
-                backupp = module.backup_local(path)
-                options = options_list[0]
-                fail_json_iterations = []
-                try:
-                    _, lines = interfaces_file.setInterfaceOption(module, lines, options['iface'], options['option'], options['value'], options['state'])
-                except AnsibleFailJson as e:
-                    fail_json_iterations.append("fail_json message: %s\noptions:\n%s" %
-                                                (str(e), json.dumps(options, sort_keys=True, indent=4, separators=(',', ': '))))
-                interfaces_file.write_changes(module, [d['line'] for d in lines if 'line' in d], path)
+                with tempfile.NamedTemporaryFile() as temp_file:
+                    src_path = os.path.join(fixture_path, testfile)
+                    path = temp_file.name
+                    shutil.copy(src_path, path)
+                    lines, ifaces = interfaces_file.read_interfaces_file(module, path)
+                    backupp = module.backup_local(path)
+                    options = options_list[0]
+                    fail_json_iterations = []
+                    try:
+                        _, lines = interfaces_file.setInterfaceOption(module, lines, options['iface'], options['option'], options['value'], options['state'])
+                    except AnsibleFailJson as e:
+                        fail_json_iterations.append("fail_json message: %s\noptions:\n%s" %
+                                                    (str(e), json.dumps(options, sort_keys=True, indent=4, separators=(',', ': '))))
+                    interfaces_file.write_changes(module, [d['line'] for d in lines if 'line' in d], path)
 
-                self.compareStringWithFile("\n=====\n".join(fail_json_iterations), "%s_%s.exceptions.txt" % (testfile, testname))
+                    self.compareStringWithFile("\n=====\n".join(fail_json_iterations), "%s_%s.exceptions.txt" % (testfile, testname))
 
-                self.compareInterfacesLinesToFile(lines, testfile, "%s_%s" % (testfile, testname))
-                self.compareInterfacesToFile(ifaces, testfile, "%s_%s.json" % (testfile, testname))
-                # Restore backup
-                move(backupp, path)
+                    self.compareInterfacesLinesToFile(lines, testfile, "%s_%s" % (testfile, testname))
+                    self.compareInterfacesToFile(ifaces, testfile, "%s_%s.json" % (testfile, testname))
+                    # Restore backup
+                    move(backupp, path)