Add API tests for utility check route. Fixes #3790

web/pgadmin/tools/backup/tests/test_check_utility_exists_route_backup.py

@@ -0,0 +1,41 @@
+##########################################################################
+#
+# pgAdmin 4 - PostgreSQL Tools
+#
+# Copyright (C) 2013 - 2018, The pgAdmin Development Team
+# This software is released under the PostgreSQL Licence
+#
+##########################################################################
+
+import sys
+import json
+from pgadmin.utils.route import BaseTestGenerator
+from regression.python_test_utils.test_utils import\
+    check_binary_path_or_skip_test
+
+if sys.version_info < (3, 3):
+    from mock import patch
+else:
+    from unittest.mock import patch
+
+
+class TestUtilityCheckRouteCase(BaseTestGenerator):
+    """Test to checks the utility route for Backup"""
+
+    scenarios = [
+        ('Check utility path route for backup utility', {
+            'url': '/backup/utility_exists/{0}/objects',
+            'expected_success_value': 1
+        })
+    ]
+
+    def setUp(self):
+        check_binary_path_or_skip_test(self)
+
+    @patch('pgadmin.tools.backup.is_utility_exists')
+    def runTest(self, is_utility_exists_mock):
+        is_utility_exists_mock.return_value = False
+        response = self.tester.get(self.url.format(1))
+        self.assertEquals(response.status_code, 200)
+        response = json.loads(response.data.decode('utf-8'))
+        self.assertEquals(self.expected_success_value, response['success'])