refactor: Use IntegrationTestCase in multiple files

Signed-off-by: David <dgx.arnold@gmail.com>

erpnext/projects/doctype/activity_cost/test_activity_cost.py

@@ -1,14 +1,14 @@
 # Copyright (c) 2015, Frappe Technologies Pvt. Ltd. and Contributors and Contributors
 # See license.txt
-
 import unittest
 
 import frappe
+from frappe.tests import IntegrationTestCase
 
 from erpnext.projects.doctype.activity_cost.activity_cost import DuplicationError
 
 
-class TestActivityCost(unittest.TestCase):
+class TestActivityCost(IntegrationTestCase):
 	def test_duplication(self):
 		frappe.db.sql("delete from `tabActivity Cost`")
 		activity_cost1 = frappe.new_doc("Activity Cost")

erpnext/projects/doctype/project_template/test_project_template.py

@@ -1,14 +1,14 @@
 # Copyright (c) 2019, Frappe Technologies Pvt. Ltd. and Contributors
 # See license.txt
-
 import unittest
 
 import frappe
+from frappe.tests import IntegrationTestCase
 
 from erpnext.projects.doctype.task.test_task import create_task
 
 
-class TestProjectTemplate(unittest.TestCase):
+class TestProjectTemplate(IntegrationTestCase):
 	pass
 
 

erpnext/projects/doctype/project_type/test_project_type.py

@@ -1,8 +1,9 @@
 # Copyright (c) 2017, Frappe Technologies Pvt. Ltd. and Contributors
 # See license.txt
-
 import unittest
 
+from frappe.tests import IntegrationTestCase
 
-class TestProjectType(unittest.TestCase):
+
+class TestProjectType(IntegrationTestCase):
 	pass

erpnext/projects/doctype/project_update/test_project_update.py

@@ -1,12 +1,12 @@
 # Copyright (c) 2018, Frappe Technologies Pvt. Ltd. and Contributors
 # See license.txt
-
 import unittest
 
 import frappe
+from frappe.tests import IntegrationTestCase
 
 
-class TestProjectUpdate(unittest.TestCase):
+class TestProjectUpdate(IntegrationTestCase):
 	pass
 
 

erpnext/projects/doctype/projects_settings/test_projects_settings.py

@@ -1,8 +1,9 @@
 # Copyright (c) 2018, Frappe Technologies Pvt. Ltd. and Contributors
 # See license.txt
-
 import unittest
 
+from frappe.tests import IntegrationTestCase
 
-class TestProjectsSettings(unittest.TestCase):
+
+class TestProjectsSettings(IntegrationTestCase):
 	pass

erpnext/projects/doctype/task/test_task.py

@@ -3,12 +3,13 @@
 import unittest
 
 import frappe
+from frappe.tests import IntegrationTestCase
 from frappe.utils import add_days, getdate, nowdate
 
 from erpnext.projects.doctype.task.task import CircularReferenceError
 
 
-class TestTask(unittest.TestCase):
+class TestTask(IntegrationTestCase):
 	def test_circular_reference(self):
 		task1 = create_task("_Test Task 1", add_days(nowdate(), -15), add_days(nowdate(), -10))
 		task2 = create_task("_Test Task 2", add_days(nowdate(), 11), add_days(nowdate(), 15), task1.name)

erpnext/projects/doctype/task_type/test_task_type.py

@@ -1,8 +1,9 @@
 # Copyright (c) 2019, Frappe Technologies Pvt. Ltd. and Contributors
 # See license.txt
-
 import unittest
 
+from frappe.tests import IntegrationTestCase
 
-class TestTaskType(unittest.TestCase):
+
+class TestTaskType(IntegrationTestCase):
 	pass

erpnext/projects/doctype/timesheet/test_timesheet.py

@@ -1,10 +1,10 @@
 # Copyright (c) 2015, Frappe Technologies Pvt. Ltd. and Contributors
 # See license.txt
-
 import datetime
 import unittest
 
 import frappe
+from frappe.tests import IntegrationTestCase
 from frappe.utils import add_to_date, now_datetime, nowdate
 
 from erpnext.accounts.doctype.sales_invoice.test_sales_invoice import create_sales_invoice
@@ -12,7 +12,7 @@ from erpnext.projects.doctype.timesheet.timesheet import OverlapError, make_sale
 from erpnext.setup.doctype.employee.test_employee import make_employee
 
 
-class TestTimesheet(unittest.TestCase):
+class TestTimesheet(IntegrationTestCase):
 	def setUp(self):
 		frappe.db.delete("Timesheet")
 

erpnext/projects/report/delayed_tasks_summary/test_delayed_tasks_summary.py

@@ -1,13 +1,14 @@
 import unittest
 
 import frappe
+from frappe.tests import IntegrationTestCase
 from frappe.utils import add_days, add_months, nowdate
 
 from erpnext.projects.doctype.task.test_task import create_task
 from erpnext.projects.report.delayed_tasks_summary.delayed_tasks_summary import execute
 
 
-class TestDelayedTasksSummary(unittest.TestCase):
+class TestDelayedTasksSummary(IntegrationTestCase):
 	@classmethod
 	def setUp(self):
 		task1 = create_task("_Test Task 98", add_days(nowdate(), -10), nowdate())