Improve code coverage and API test cases for Schemas. Fixes #5327

docs/en_US/release_notes_4_25.rst

@@ -16,6 +16,7 @@ Housekeeping
 ************
 
 | `Issue #5324 <https://redmine.postgresql.org/issues/5324>`_ -  Improve code coverage and API test cases for Foreign Servers and User Mappings.
+| `Issue #5327 <https://redmine.postgresql.org/issues/5327>`_ -  Improve code coverage and API test cases for Schemas.
 | `Issue #5336 <https://redmine.postgresql.org/issues/5336>`_ -  Improve code coverage and API test cases for Types.
 | `Issue #5700 <https://redmine.postgresql.org/issues/5700>`_ -  Remove old Python 2 compatibility code.
 

web/pgadmin/browser/server_groups/servers/databases/schemas/domains/domain_constraints/tests/domain_constraints_test_data.json

@@ -439,10 +439,7 @@
         "comment": "Comments to test update"
       },
       "mocking_required": true,
-      "mock_data": {
-         "function_name": "pgadmin.browser.server_groups.servers.databases.schemas.domains.domain_constraints.DomainConstraintView.get_sql",
-         "return_value": "('', 'Mocked get_sql function', '')"
-      },
+      "mock_data": {},
       "expected_data": {
         "status_code": 200
       }

web/pgadmin/browser/server_groups/servers/databases/schemas/tests/schema_test_data.json

@@ -0,0 +1,296 @@
+{
+  "schema_create": [
+    {
+      "name": "Create schema: With valid data",
+      "url": "/browser/schema/obj/",
+      "is_positive_test": true,
+      "test_data": {},
+      "mocking_required": false,
+      "mock_data": {},
+      "expected_data": {
+        "status_code": 200
+      }
+    },
+    {
+      "name": "Error Creating schema: missing parameter",
+      "url": "/browser/schema/obj/",
+      "is_positive_test": false,
+      "missing_param": true,
+      "test_data": {},
+      "mocking_required": false,
+      "mock_data": {},
+      "expected_data": {
+        "status_code": 410
+      }
+    },
+    {
+      "name": "Error Creating schema: invalid data",
+      "url": "/browser/schema/obj/",
+      "is_positive_test": false,
+      "error_db_id": true,
+      "test_data": {},
+      "mocking_required": false,
+      "mock_data": {},
+      "expected_data": {
+        "status_code": 410
+      }
+    }
+  ],
+  "schema_delete": [
+    {
+      "name": "Delete schema",
+      "url": "/browser/schema/obj/",
+      "is_positive_test": true,
+      "mocking_required": false,
+      "mock_data": {},
+      "expected_data": {
+        "status_code": 200
+      }
+    },
+    {
+      "name": "Error while deleting a schema - Internal server error",
+      "url": "/browser/schema/obj/",
+      "error_deleting_schema": true,
+      "is_positive_test": false,
+      "mocking_required": true,
+      "mock_data": {
+        "function_name": "pgadmin.utils.driver.psycopg2.connection.Connection.execute_scalar",
+        "return_value": "(False, 'Mocked Internal Server Error while deleting a schema')"
+      },
+      "expected_data": {
+        "status_code": 500
+      }
+    },
+    {
+      "name": "Delete schema using wrong schema id",
+      "url": "/browser/schema/obj/",
+      "wrong_schema_id": true,
+      "is_positive_test": false,
+      "mocking_required": false,
+      "mock_data": {
+      },
+      "expected_data": {
+        "status_code": 410
+      }
+    }
+  ],
+  "schema_multiple_delete" :[
+    {
+      "name": "Delete multiple schema",
+      "url": "/browser/schema/obj/",
+      "is_positive_test": true,
+      "mocking_required": false,
+      "mock_data": {},
+      "expected_data": {
+        "status_code": 200
+      }
+    }
+  ],
+  "schema_dependent_dependency": [
+    {
+      "name": "Get schema dependents",
+      "url": "/browser/schema/dependent/",
+      "is_positive_test": true,
+      "mocking_required": false,
+      "mock_data": {},
+      "expected_data": {
+        "status_code": 200
+      }
+    },
+    {
+      "name": "Get schema dependencies",
+      "url": "/browser/schema/dependency/",
+      "is_positive_test": true,
+      "mocking_required": false,
+      "mock_data": {},
+      "expected_data": {
+        "status_code": 200
+      }
+    }
+  ],
+  "schema_get_nodes": [
+    {
+      "name": "Get schema nodes",
+      "url": "/browser/schema/nodes/",
+      "is_positive_test": true,
+      "mocking_required": false,
+      "mock_data": {},
+      "expected_data": {
+        "status_code": 200
+      }
+    },
+    {
+      "name": "Error while fetching schema nodes",
+      "url": "/browser/schema/nodes/",
+      "error_fetching_schema": true,
+      "is_positive_test": false,
+      "invalid": false,
+      "mocking_required": true,
+      "mock_data": {
+        "function_name": "pgadmin.utils.driver.psycopg2.connection.Connection.execute_2darray",
+        "return_value": "(False, 'Mocked Internal Server Error while fetching schema nodes')"
+      },
+      "expected_data": {
+        "status_code": 500
+      }
+    },
+    {
+      "name": "Error - Fetching schema using wrong schema id",
+      "url": "/browser/schema/nodes/",
+      "wrong_schema_id": true,
+      "is_positive_test": false,
+      "invalid": false,
+      "mocking_required": false,
+      "mock_data": {
+      },
+      "expected_data": {
+        "status_code": 410
+      }
+    }
+  ],
+  "schema_update": [
+    {
+      "name": "Update schema",
+      "url": "/browser/schema/obj/",
+      "is_positive_test": true,
+      "mocking_required": false,
+      "test_data": {},
+      "mock_data": {},
+      "expected_data": {
+        "status_code": 200
+      }
+    },
+    {
+      "name": "Error while updating a schema - Internal server error",
+      "url": "/browser/schema/obj/",
+      "error_in_db": true,
+      "test_data": {},
+      "is_positive_test": false,
+      "mocking_required": true,
+      "mock_data": {
+        "function_name": "pgadmin.utils.driver.psycopg2.connection.Connection.execute_scalar",
+        "return_value": "[(False, 'Mocked Internal Server Error while updating a schema')]"
+      },
+      "expected_data": {
+        "status_code": 500
+      }
+    }
+  ],
+  "schema_get_sql": [
+    {
+      "name": "Get Schema SQL",
+      "url": "/browser/schema/sql/",
+      "is_positive_test": true,
+      "mocking_required": false,
+      "mock_data": {},
+      "expected_data": {
+        "status_code": 200
+      }
+    },
+    {
+      "name": "Error - Get schema SQL - Internal server error",
+      "url": "/browser/schema/sql/",
+      "is_positive_test": false,
+      "internal_server_error": true,
+      "mocking_required": true,
+      "mock_data": {
+        "function_name": "pgadmin.utils.driver.psycopg2.connection.Connection.execute_dict",
+        "return_value": "(False, 'Mocked Internal Server Error while fetching a schema')"
+      },
+      "expected_data": {
+        "status_code": 500
+      }
+    },
+    {
+      "name": "Error - Get schema SQL using wrong schema id",
+      "url": "/browser/schema/sql/",
+      "wrong_schema_id": true,
+      "is_positive_test": false,
+      "mocking_required": false,
+      "mock_data": {
+      },
+      "expected_data": {
+        "status_code": 410
+      }
+    }
+  ],
+  "schema_get": [
+    {
+      "name": "Get Schema Properties",
+      "url": "/browser/schema/obj/",
+      "is_positive_test": true,
+      "mocking_required": false,
+      "mock_data": {},
+      "expected_data": {
+        "status_code": 200
+      }
+    },
+    {
+      "name": "Error while fetching Schema Properties",
+      "url": "/browser/schema/obj/",
+      "error_fetching_schema": true,
+      "is_positive_test": false,
+      "mocking_required": true,
+      "mock_data": {
+        "function_name": "pgadmin.utils.driver.psycopg2.connection.Connection.execute_dict",
+        "return_value": "(False, 'Mocked Internal Server Error while fetching schema properties')"
+      },
+      "expected_data": {
+        "status_code": 500
+      }
+    },
+    {
+      "name": "Get schema list",
+      "url": "/browser/schema/obj/",
+      "is_positive_test": true,
+      "schema_list": true,
+      "mocking_required": false,
+      "mock_data": {},
+      "expected_data": {
+        "status_code": 200
+      }
+    },
+    {
+      "name": "Error while fetching Schema list",
+      "url": "/browser/schema/obj/",
+      "error_fetching_schema": true,
+      "is_positive_test": false,
+      "schema_list": true,
+      "mocking_required": true,
+      "mock_data": {
+        "function_name": "pgadmin.utils.driver.psycopg2.connection.Connection.execute_dict",
+        "return_value": "(False, 'Mocked Internal Server Error while fetching schema list')"
+      },
+      "expected_data": {
+        "status_code": 500
+      }
+    }
+  ],
+  "schema_get_children": [
+    {
+      "name": "Get Schema Children",
+      "url": "/browser/schema/children/",
+      "is_positive_test": true,
+      "mocking_required": false,
+      "mock_data": {},
+      "expected_data": {
+        "status_code": 200
+      }
+    },
+    {
+      "name": "Error while fetching Schema children",
+      "url": "/browser/schema/children/",
+      "error_in_db": true,
+      "is_positive_test": false,
+      "schema_list": true,
+      "mocking_required": true,
+      "mock_data": {
+        "function_name": "pgadmin.utils.driver.psycopg2.connection.Connection.execute_dict",
+        "return_value": "(False, 'Mocked Internal Server Error while fetching schema children')"
+      },
+      "expected_data": {
+        "status_code": 500
+      }
+    }
+  ]
+}

web/pgadmin/browser/server_groups/servers/databases/schemas/tests/test_schema_add.py

@@ -15,29 +15,45 @@ from pgadmin.browser.server_groups.servers.databases.tests import utils as \
 from pgadmin.utils.route import BaseTestGenerator
 from regression import parent_node_dict
 from regression.python_test_utils import test_utils as utils
+from . import utils as schema_utils
+from unittest.mock import patch
 
 
 class SchemaAddTestCase(BaseTestGenerator):
     """ This class will add new schema under database node. """
-    scenarios = [
-        # Fetching default URL for schema node.
-        ('Check Schema Node URL', dict(url='/browser/schema/obj/'))
-    ]
+    scenarios = utils.generate_scenarios('schema_create',
+                                         schema_utils.test_cases)
+
+    def setUp(self):
+        database_info = parent_node_dict["database"][-1]
+        self.server_id = database_info["server_id"]
+        self.db_id = database_info["db_id"]
+
+    def create_schema(self, db_id):
+        """
+        This function create a schema and returns it
+        :return: created schema response
+        """
+        is_nice = True
+        state = "nice" if is_nice else "not nice"
+
+        db_id = db_id or self.db_id
+        return self.tester.post(self.url + str(utils.SERVER_GROUP) + '/' +
+                                str(self.server_id) + '/' +
+                                str(db_id) + '/',
+                                data=json.dumps(self.data),
+                                content_type='html/json')
 
     def runTest(self):
         """ This function will add schema under database node. """
-        database_info = parent_node_dict["database"][-1]
-        server_id = database_info["server_id"]
-
-        db_id = database_info["db_id"]
         db_con = database_utils.connect_database(self,
                                                  utils.SERVER_GROUP,
-                                                 server_id,
-                                                 db_id)
+                                                 self.server_id,
+                                                 self.db_id)
         if not db_con["info"] == "Database connected.":
             raise Exception("Could not connect to database to add the schema.")
         db_user = self.server["username"]
-        data = {
+        self.data = {
             "deffuncacl": [],
             "defseqacl": [],
             "deftblacl": [],
@@ -65,8 +81,22 @@ class SchemaAddTestCase(BaseTestGenerator):
             ],
             "seclabels": []
         }
-        response = self.tester.post(self.url + str(utils.SERVER_GROUP) + '/' +
-                                    str(server_id) + '/' + str(db_id) +
-                                    '/', data=json.dumps(data),
-                                    content_type='html/json')
-        self.assertEquals(response.status_code, 200)
+
+        if self.is_positive_test:
+            response = self.create_schema("")
+        else:
+            if hasattr(self, "error_db_id"):
+                wrong_db_id = 99999
+                response = self.create_schema(wrong_db_id)
+
+            if hasattr(self, "missing_param"):
+                del self.data['name']
+                response = self.create_schema("")
+
+        actual_response_code = response.status_code
+        expected_response_code = self.expected_data['status_code']
+        self.assertEquals(actual_response_code, expected_response_code)
+
+    def tearDown(self):
+        # Disconnect the database
+        database_utils.disconnect_database(self, self.server_id, self.db_id)

web/pgadmin/browser/server_groups/servers/databases/schemas/tests/test_schema_delete.py

@@ -15,15 +15,14 @@ from pgadmin.utils.route import BaseTestGenerator
 from regression import parent_node_dict
 from regression.python_test_utils import test_utils as utils
 from . import utils as schema_utils
+from unittest.mock import patch
 
 
 class SchemaDeleteTestCase(BaseTestGenerator):
     """ This class will add new schema under database node. """
 
-    scenarios = [
-        # Fetching default URL for extension node.
-        ('Check Schema Node URL', dict(url='/browser/schema/obj/'))
-    ]
+    scenarios = utils.generate_scenarios('schema_delete',
+                                         schema_utils.test_cases)
 
     def setUp(self):
         self.database_info = parent_node_dict["database"][-1]
@@ -38,17 +37,27 @@ class SchemaDeleteTestCase(BaseTestGenerator):
         self.schema_details = schema_utils.create_schema(connection,
                                                          self.schema_name)
 
+    def delete_schema(self):
+        """
+        This function returns the schema delete response
+        :return: schema delete response
+        """
+        return self.tester.delete(
+            self.url + str(utils.SERVER_GROUP) + '/' + str(self.server_id) +
+            '/' + str(self.db_id) + '/' + str(self.schema_id),
+            follow_redirects=True)
+
     def runTest(self):
         """ This function will delete schema under database node. """
-        server_id = self.database_info["server_id"]
-        db_id = self.database_info["db_id"]
+        self.server_id = self.database_info["server_id"]
+        self.db_id = self.database_info["db_id"]
         db_con = database_utils.connect_database(self, utils.SERVER_GROUP,
-                                                 server_id, db_id)
+                                                 self.server_id, self.db_id)
         if not db_con['data']["connected"]:
             raise Exception("Could not connect to database to delete the"
                             " schema.")
 
-        schema_id = self.schema_details[0]
+        self.schema_id = self.schema_details[0]
         schema_name = self.schema_details[1]
         schema_response = schema_utils.verify_schemas(self.server,
                                                       self.db_name,
@@ -56,11 +65,22 @@ class SchemaDeleteTestCase(BaseTestGenerator):
         if not schema_response:
             raise Exception("Could not find the schema to delete.")
 
-        response = self.tester.delete(self.url + str(utils.SERVER_GROUP) +
-                                      '/' + str(server_id) + '/' +
-                                      str(db_id) + '/' + str(schema_id),
-                                      follow_redirects=True)
-        self.assertEquals(response.status_code, 200)
+        if self.is_positive_test:
+            response = self.delete_schema()
+        else:
+            if hasattr(self, "error_deleting_schema"):
+                with patch(self.mock_data["function_name"],
+                           return_value=eval(self.mock_data["return_value"])):
+                    response = self.delete_schema()
+
+            if hasattr(self, "wrong_schema_id"):
+                self.schema_id = 99999
+                response = self.delete_schema()
+
+        actual_response_code = response.status_code
+        expected_response_code = self.expected_data['status_code']
+        self.assertEquals(actual_response_code, expected_response_code)
 
     def tearDown(self):
-        pass
+        # Disconnect the database
+        database_utils.disconnect_database(self, self.server_id, self.db_id)

web/pgadmin/browser/server_groups/servers/databases/schemas/tests/test_schema_delete_multiple.py

@@ -21,10 +21,8 @@ from . import utils as schema_utils
 class SchemaDeleteMultipleTestCase(BaseTestGenerator):
     """ This class will add new schema under database node. """
 
-    scenarios = [
-        # Fetching default URL for extension node.
-        ('Check Schema Node URL', dict(url='/browser/schema/obj/'))
-    ]
+    scenarios = utils.generate_scenarios('schema_multiple_delete',
+                                         schema_utils.test_cases)
 
     def setUp(self):
         self.database_info = parent_node_dict["database"][-1]
@@ -51,10 +49,10 @@ class SchemaDeleteMultipleTestCase(BaseTestGenerator):
 
     def runTest(self):
         """ This function will delete schema under database node. """
-        server_id = self.database_info["server_id"]
-        db_id = self.database_info["db_id"]
+        self.server_id = self.database_info["server_id"]
+        self.db_id = self.database_info["db_id"]
         db_con = database_utils.connect_database(self, utils.SERVER_GROUP,
-                                                 server_id, db_id)
+                                                 self.server_id, self.db_id)
         if not db_con['data']["connected"]:
             raise Exception("Could not connect to database to delete the"
                             " schema.")
@@ -75,12 +73,16 @@ class SchemaDeleteMultipleTestCase(BaseTestGenerator):
 
         data = {'ids': [self.schema_details[0], self.schema_details_1[0]]}
         response = self.tester.delete(self.url + str(utils.SERVER_GROUP) +
-                                      '/' + str(server_id) + '/' +
-                                      str(db_id) + '/',
+                                      '/' + str(self.server_id) + '/' +
+                                      str(self.db_id) + '/',
                                       follow_redirects=True,
                                       data=json.dumps(data),
                                       content_type='html/json')
-        self.assertEquals(response.status_code, 200)
+
+        actual_response_code = response.status_code
+        expected_response_code = self.expected_data['status_code']
+        self.assertEquals(actual_response_code, expected_response_code)
 
     def tearDown(self):
-        pass
+        # Disconnect the database
+        database_utils.disconnect_database(self, self.server_id, self.db_id)

web/pgadmin/browser/server_groups/servers/databases/schemas/tests/test_schema_dependents.py

@@ -0,0 +1,77 @@
+##########################################################################
+#
+# pgAdmin 4 - PostgreSQL Tools
+#
+# Copyright (C) 2013 - 2020, The pgAdmin Development Team
+# This software is released under the PostgreSQL Licence
+#
+##########################################################################
+
+import uuid
+
+from pgadmin.browser.server_groups.servers.databases.tests import utils as \
+    database_utils
+from pgadmin.utils.route import BaseTestGenerator
+from regression import parent_node_dict
+from regression.python_test_utils import test_utils as utils
+from . import utils as schema_utils
+
+
+class SchemaDependentAndDependencyTestCase(BaseTestGenerator):
+    """ This class will check dependents and dependencies of
+     schema under database node. """
+
+    scenarios = utils.generate_scenarios('schema_dependent_dependency',
+                                         schema_utils.test_cases)
+
+    def setUp(self):
+        self.database_info = parent_node_dict["database"][-1]
+        self.db_name = self.database_info["db_name"]
+        # Change the db name, so that schema will create in newly created db
+        self.schema_name = "schema_get_%s" % str(uuid.uuid4())[1:8]
+        connection = utils.get_db_connection(self.db_name,
+                                             self.server['username'],
+                                             self.server['db_password'],
+                                             self.server['host'],
+                                             self.server['port'])
+        self.schema_details = schema_utils.create_schema(connection,
+                                                         self.schema_name)
+
+    def dependents_schema(self):
+        """
+        This function returns the schema dependents response
+        :return: schema delete response
+        """
+        return self.tester.get(
+            self.url + str(utils.SERVER_GROUP) + '/' + str(self.server_id) +
+            '/' + str(self.db_id) + '/' + str(self.schema_id),
+            follow_redirects=True)
+
+    def runTest(self):
+        """ This function will check dependents and dependencies
+         of schema under database node. """
+        self.server_id = self.database_info["server_id"]
+        self.db_id = self.database_info["db_id"]
+        db_con = database_utils.connect_database(self, utils.SERVER_GROUP,
+                                                 self.server_id, self.db_id)
+        if not db_con['data']["connected"]:
+            raise Exception("Could not connect to database.")
+
+        self.schema_id = self.schema_details[0]
+        schema_name = self.schema_details[1]
+        schema_response = schema_utils.verify_schemas(self.server,
+                                                      self.db_name,
+                                                      schema_name)
+        if not schema_response:
+            raise Exception("Could not find the schema.")
+
+        if self.is_positive_test:
+            response = self.dependents_schema()
+
+        actual_response_code = response.status_code
+        expected_response_code = self.expected_data['status_code']
+        self.assertEquals(actual_response_code, expected_response_code)
+
+    def tearDown(self):
+        # Disconnect the database
+        database_utils.disconnect_database(self, self.server_id, self.db_id)

web/pgadmin/browser/server_groups/servers/databases/schemas/tests/test_schema_get.py

@@ -13,39 +13,75 @@ from pgadmin.utils import server_utils as server_utils
 from pgadmin.utils.route import BaseTestGenerator
 from regression import parent_node_dict
 from regression.python_test_utils import test_utils as utils
+from unittest.mock import patch
+from . import utils as schema_utils
 
 
 class SchemaGetTestCase(BaseTestGenerator):
     """ This class will add new schema under database node. """
-    scenarios = [
-        # Fetching default URL for extension node.
-        ('Check Schema Node URL', dict(url='/browser/schema/obj/'))
-    ]
+    scenarios = utils.generate_scenarios('schema_get',
+                                         schema_utils.test_cases)
+
+    def get_schema(self):
+        """
+        This function returns the schema get response
+        :return: schema get response
+        """
+        return self.tester.get(
+            self.url + str(utils.SERVER_GROUP) + '/' +
+            str(self.server_id) + '/' + str(self.db_id) +
+            '/' + str(self.schema_id),
+            content_type='html/json')
+
+    def get_schema_list(self):
+        """
+        This functions returns the schema list
+        :return: schema list
+        """
+        return self.tester.get(
+            self.url + str(utils.SERVER_GROUP) + '/' +
+            str(self.server_id) + '/' + str(self.db_id) +
+            '/',
+            content_type='html/json')
 
     def runTest(self):
         """ This function will delete schema under database node. """
         schema = parent_node_dict["schema"][-1]
-        db_id = schema["db_id"]
-        server_id = schema["server_id"]
+        self.db_id = schema["db_id"]
+        self.server_id = schema["server_id"]
 
-        server_response = server_utils.connect_server(self, server_id)
+        server_response = server_utils.connect_server(self, self.server_id)
         if not server_response["data"]["connected"]:
             raise Exception("Could not connect to server to connect the"
                             " database.")
 
         db_con = database_utils.connect_database(self,
                                                  utils.SERVER_GROUP,
-                                                 server_id,
-                                                 db_id)
+                                                 self.server_id,
+                                                 self.db_id)
         if not db_con["info"] == "Database connected.":
             raise Exception("Could not connect to database to get the schema.")
 
-        schema_id = schema["schema_id"]
-        schema_response = self.tester.get(
-            self.url + str(utils.SERVER_GROUP) + '/' +
-            str(server_id) + '/' + str(db_id) +
-            '/' + str(schema_id),
-            content_type='html/json')
-        self.assertEquals(schema_response.status_code, 200)
+        self.schema_id = schema["schema_id"]
+        if self.is_positive_test:
+            if hasattr(self, "schema_list"):
+                response = self.get_schema_list()
+            else:
+                response = self.get_schema()
+
+        else:
+            if hasattr(self, "error_fetching_schema"):
+                with patch(self.mock_data["function_name"],
+                           return_value=eval(self.mock_data["return_value"])):
+                    if hasattr(self, "schema_list"):
+                        response = self.get_schema_list()
+                    else:
+                        response = self.get_schema()
+
+        actual_response_code = response.status_code
+        expected_response_code = self.expected_data['status_code']
+        self.assertEquals(actual_response_code, expected_response_code)
+
+    def tearDown(self):
         # Disconnect the database
-        database_utils.disconnect_database(self, server_id, db_id)
+        database_utils.disconnect_database(self, self.server_id, self.db_id)

web/pgadmin/browser/server_groups/servers/databases/schemas/tests/test_schema_get_children.py

@@ -0,0 +1,84 @@
+##########################################################################
+#
+# pgAdmin 4 - PostgreSQL Tools
+#
+# Copyright (C) 2013 - 2020, The pgAdmin Development Team
+# This software is released under the PostgreSQL Licence
+#
+##########################################################################
+
+import uuid
+
+from pgadmin.browser.server_groups.servers.databases.tests import utils as \
+    database_utils
+from pgadmin.utils.route import BaseTestGenerator
+from regression import parent_node_dict
+from regression.python_test_utils import test_utils as utils
+from . import utils as schema_utils
+from unittest.mock import patch
+
+
+class SchemaChildrenTestCase(BaseTestGenerator):
+    """ This class will add new schema under database node. """
+
+    scenarios = utils.generate_scenarios('schema_get_children',
+                                         schema_utils.test_cases)
+
+    def setUp(self):
+        self.database_info = parent_node_dict["database"][-1]
+        self.db_name = self.database_info["db_name"]
+        # Change the db name, so that schema will create in newly created db
+        self.schema_name = "schema_get_%s" % str(uuid.uuid4())[1:8]
+        connection = utils.get_db_connection(self.db_name,
+                                             self.server['username'],
+                                             self.server['db_password'],
+                                             self.server['host'],
+                                             self.server['port'])
+        self.schema_details = schema_utils.create_schema(connection,
+                                                         self.schema_name)
+
+    def get_children(self):
+        """
+        This function returns the schema children response
+        :return: schema children response
+        """
+
+        return self.tester.get(
+            self.url + str(utils.SERVER_GROUP) + '/' + str(self.server_id) +
+            '/' + str(self.db_id) + '/' + str(self.schema_id),
+            follow_redirects=True)
+
+    def runTest(self):
+        """ This function will check children
+         of schema under database node. """
+        self.server_id = self.database_info["server_id"]
+        self.db_id = self.database_info["db_id"]
+        db_con = database_utils.connect_database(self, utils.SERVER_GROUP,
+                                                 self.server_id, self.db_id)
+        if not db_con['data']["connected"]:
+            raise Exception("Could not connect to database.")
+
+        self.schema_id = self.schema_details[0]
+        schema_name = self.schema_details[1]
+        schema_response = schema_utils.verify_schemas(self.server,
+                                                      self.db_name,
+                                                      schema_name)
+        if not schema_response:
+            raise Exception("Could not find the schema.")
+
+        if self.is_positive_test:
+            response = self.get_children()
+        else:
+            if hasattr(self, "error_in_db"):
+                return_value_object = eval(self.mock_data["return_value"])
+                with patch(self.mock_data["function_name"],
+                           side_effect=[return_value_object]):
+                    response = self.get_children()
+
+        actual_response_code = response.status_code
+        expected_response_code = self.expected_data['status_code']
+        self.assertEquals(actual_response_code, expected_response_code)
+
+    def tearDown(self):
+        # Disconnect the database
+        database_utils.disconnect_database(self, self.server_id, self.db_id)

web/pgadmin/browser/server_groups/servers/databases/schemas/tests/test_schema_node.py

@@ -0,0 +1,86 @@
+##########################################################################
+#
+# pgAdmin 4 - PostgreSQL Tools
+#
+# Copyright (C) 2013 - 2020, The pgAdmin Development Team
+# This software is released under the PostgreSQL Licence
+#
+##########################################################################
+
+import uuid
+
+from pgadmin.browser.server_groups.servers.databases.tests import utils as \
+    database_utils
+from pgadmin.utils.route import BaseTestGenerator
+from regression import parent_node_dict
+from regression.python_test_utils import test_utils as utils
+from . import utils as schema_utils
+from unittest.mock import patch
+
+
+class SchemaNodeAndNodesTestCase(BaseTestGenerator):
+    """ This class will add new schema under database node. """
+
+    scenarios = utils.generate_scenarios('schema_get_nodes',
+                                         schema_utils.test_cases)
+
+    def setUp(self):
+        self.database_info = parent_node_dict["database"][-1]
+        self.db_name = self.database_info["db_name"]
+        # Change the db name, so that schema will create in newly created db
+        self.schema_name = "schema_get_%s" % str(uuid.uuid4())[1:8]
+        connection = utils.get_db_connection(self.db_name,
+                                             self.server['username'],
+                                             self.server['db_password'],
+                                             self.server['host'],
+                                             self.server['port'])
+        self.schema_details = schema_utils.create_schema(connection,
+                                                         self.schema_name)
+
+    def get_node_schema(self):
+        """
+        This function returns the schema node response
+        :return: schema node response
+        """
+        return self.tester.get(
+            self.url + str(utils.SERVER_GROUP) + '/' + str(self.server_id) +
+            '/' + str(self.db_id) + '/' + str(self.schema_id),
+            follow_redirects=True)
+
+    def runTest(self):
+        """ This function will check node and nodes
+         of schema under database node. """
+        self.server_id = self.database_info["server_id"]
+        self.db_id = self.database_info["db_id"]
+        db_con = database_utils.connect_database(self, utils.SERVER_GROUP,
+                                                 self.server_id, self.db_id)
+        if not db_con['data']["connected"]:
+            raise Exception("Could not connect to database.")
+
+        self.schema_id = self.schema_details[0]
+        schema_name = self.schema_details[1]
+        schema_response = schema_utils.verify_schemas(self.server,
+                                                      self.db_name,
+                                                      schema_name)
+        if not schema_response:
+            raise Exception("Could not find the schema.")
+
+        if self.is_positive_test:
+            response = self.get_node_schema()
+        else:
+            if hasattr(self, "error_fetching_schema"):
+                with patch(self.mock_data["function_name"],
+                           return_value=eval(self.mock_data["return_value"])):
+                    response = self.get_node_schema()
+
+            if hasattr(self, "wrong_schema_id"):
+                self.schema_id = 99999
+                response = self.get_node_schema()
+
+        actual_response_code = response.status_code
+        expected_response_code = self.expected_data['status_code']
+        self.assertEquals(actual_response_code, expected_response_code)
+
+    def tearDown(self):
+        # Disconnect the database
+        database_utils.disconnect_database(self, self.server_id, self.db_id)

web/pgadmin/browser/server_groups/servers/databases/schemas/tests/test_schema_put.py

@@ -16,15 +16,15 @@ from pgadmin.utils.route import BaseTestGenerator
 from regression import parent_node_dict
 from regression.python_test_utils import test_utils as utils
 from . import utils as schema_utils
+from unittest.mock import patch
 
 
 class SchemaPutTestCase(BaseTestGenerator):
     """ This class will update the schema under database node. """
     skip_on_database = ['gpdb']
-    scenarios = [
-        # Fetching default URL for extension node.
-        ('Check Schema Node URL', dict(url='/browser/schema/obj/'))
-    ]
+
+    scenarios = utils.generate_scenarios('schema_update',
+                                         schema_utils.test_cases)
 
     def setUp(self):
         super(SchemaPutTestCase, self).setUp()
@@ -41,17 +41,27 @@ class SchemaPutTestCase(BaseTestGenerator):
         self.schema_details = schema_utils.create_schema(connection,
                                                          self.schema_name)
 
-    def runTest(self):
-        """ This function will delete schema under database node. """
+    def update_schema(self):
+        """
+        This functions update schema
+        :return: schema update request details
+        """
+        return self.tester.put(
+            self.url + str(utils.SERVER_GROUP) + '/' + str(self.server_id) +
+            '/' + str(self.db_id) + '/' + str(self.schema_id),
+            data=json.dumps(self.data), follow_redirects=True)
 
-        server_id = self.database_info["server_id"]
-        db_id = self.database_info["db_id"]
+    def runTest(self):
+        """ This function will check update schema under database node. """
+
+        self.server_id = self.database_info["server_id"]
+        self.db_id = self.database_info["db_id"]
         db_con = database_utils.connect_database(self, utils.SERVER_GROUP,
-                                                 server_id, db_id)
+                                                 self.server_id, self.db_id)
         if not db_con['data']["connected"]:
             raise Exception("Could not connect to database to delete the"
                             " schema.")
-        schema_id = self.schema_details[0]
+        self.schema_id = self.schema_details[0]
         schema_name = self.schema_details[1]
         schema_response = schema_utils.verify_schemas(self.server,
                                                       self.db_name,
@@ -60,7 +70,7 @@ class SchemaPutTestCase(BaseTestGenerator):
             raise Exception("Could not find the schema to update.")
 
         db_user = self.server["username"]
-        data = {
+        self.data = {
             "deffuncacl": {
                 "added":
                     [
@@ -127,16 +137,22 @@ class SchemaPutTestCase(BaseTestGenerator):
                         }
                     ]
             },
-            "id": schema_id
+            "id": self.schema_id
         }
-        put_response = self.tester.put(
-            self.url + str(utils.SERVER_GROUP) + '/' + str(server_id) +
-            '/' + str(db_id) + '/' + str(schema_id),
-            data=json.dumps(data), follow_redirects=True)
 
-        self.assertEquals(put_response.status_code, 200)
-        # Disconnect the database
-        database_utils.disconnect_database(self, server_id, db_id)
+        if self.is_positive_test:
+            response = self.update_schema()
+
+        else:
+            if hasattr(self, "error_in_db"):
+                with patch(self.mock_data["function_name"],
+                           side_effect=eval(self.mock_data["return_value"])):
+                    response = self.update_schema()
+
+        actual_response_code = response.status_code
+        expected_response_code = self.expected_data['status_code']
+        self.assertEquals(actual_response_code, expected_response_code)
 
     def tearDown(self):
-        pass
+        # Disconnect the database
+        database_utils.disconnect_database(self, self.server_id, self.db_id)

web/pgadmin/browser/server_groups/servers/databases/schemas/tests/test_schema_sql.py

@@ -0,0 +1,88 @@
+##########################################################################
+#
+# pgAdmin 4 - PostgreSQL Tools
+#
+# Copyright (C) 2013 - 2020, The pgAdmin Development Team
+# This software is released under the PostgreSQL Licence
+#
+##########################################################################
+
+import uuid
+
+from pgadmin.browser.server_groups.servers.databases.tests import utils as \
+    database_utils
+from pgadmin.utils.route import BaseTestGenerator
+from regression import parent_node_dict
+from regression.python_test_utils import test_utils as utils
+from . import utils as schema_utils
+from unittest.mock import patch
+
+
+class SchemaSQLTestCase(BaseTestGenerator):
+    """ This class will add new schema under database node. """
+
+    scenarios = utils.generate_scenarios('schema_get_sql',
+                                         schema_utils.test_cases)
+
+    def setUp(self):
+        self.database_info = parent_node_dict["database"][-1]
+        self.db_name = self.database_info["db_name"]
+        # Change the db name, so that schema will create in newly created db
+        self.schema_name = "schema_get_%s" % str(uuid.uuid4())[1:8]
+        connection = utils.get_db_connection(self.db_name,
+                                             self.server['username'],
+                                             self.server['db_password'],
+                                             self.server['host'],
+                                             self.server['port'])
+        self.schema_details = schema_utils.create_schema(connection,
+                                                         self.schema_name)
+
+    def get_sql_node_schema(self):
+        """
+        This function returns the schema sql response
+        :return: schema sql response
+        """
+        return self.tester.get(
+            self.url + str(utils.SERVER_GROUP) + '/' + str(self.server_id) +
+            '/' + str(self.db_id) + '/' + str(self.schema_id),
+            follow_redirects=True)
+
+    def runTest(self):
+        """ This function will check sql
+         of schema under database node. """
+        self.server_id = self.database_info["server_id"]
+        self.db_id = self.database_info["db_id"]
+        db_con = database_utils.connect_database(self, utils.SERVER_GROUP,
+                                                 self.server_id, self.db_id)
+        if not db_con['data']["connected"]:
+            raise Exception("Could not connect to database.")
+
+        self.schema_id = self.schema_details[0]
+        schema_name = self.schema_details[1]
+        schema_response = schema_utils.verify_schemas(self.server,
+                                                      self.db_name,
+                                                      schema_name)
+        if not schema_response:
+            raise Exception("Could not find the schema.")
+
+        if self.is_positive_test:
+            response = self.get_sql_node_schema()
+
+        else:
+            if hasattr(self, "internal_server_error"):
+                return_value_object = eval(self.mock_data["return_value"])
+                with patch(self.mock_data["function_name"],
+                           side_effect=[return_value_object]):
+                    response = self.get_sql_node_schema()
+
+            if hasattr(self, "wrong_schema_id"):
+                self.schema_id = 99999
+                response = self.get_sql_node_schema()
+
+        actual_response_code = response.status_code
+        expected_response_code = self.expected_data['status_code']
+        self.assertEquals(actual_response_code, expected_response_code)
+
+    def tearDown(self):
+        # Disconnect the database
+        database_utils.disconnect_database(self, self.server_id, self.db_id)

web/pgadmin/browser/server_groups/servers/databases/schemas/tests/utils.py

@@ -11,9 +11,15 @@
 import sys
 import traceback
 import uuid
+import os
+import json
 
 from regression.python_test_utils import test_utils as utils
 
+CURRENT_PATH = os.path.dirname(os.path.realpath(__file__))
+with open(CURRENT_PATH + "/schema_test_data.json") as data_file:
+    test_cases = json.load(data_file)
+
 
 def get_schema_config_data(db_user):
     """This function is used to get advance config test data for schema"""