diff --git a/erpnext/accounts/doctype/purchase_invoice/purchase_invoice.json b/erpnext/accounts/doctype/purchase_invoice/purchase_invoice.json
index b8d173b..a80637e 100644
--- a/erpnext/accounts/doctype/purchase_invoice/purchase_invoice.json
+++ b/erpnext/accounts/doctype/purchase_invoice/purchase_invoice.json
@@ -1316,7 +1316,7 @@
  "idx": 204,
  "is_submittable": 1,
  "links": [],
- "modified": "2020-04-18 13:05:25.199832",
+ "modified": "2020-05-29 13:05:25.199832",
  "modified_by": "Administrator",
  "module": "Accounts",
  "name": "Purchase Invoice",
diff --git a/erpnext/accounts/doctype/purchase_invoice/test_purchase_invoice.py b/erpnext/accounts/doctype/purchase_invoice/test_purchase_invoice.py
index 5cbfad2..f61d27a 100644
--- a/erpnext/accounts/doctype/purchase_invoice/test_purchase_invoice.py
+++ b/erpnext/accounts/doctype/purchase_invoice/test_purchase_invoice.py
@@ -15,6 +15,7 @@
 from erpnext.exceptions import InvalidCurrency
 from erpnext.stock.doctype.stock_entry.test_stock_entry import get_qty_after_transaction
 from erpnext.accounts.doctype.account.test_account import get_inventory_account
+from erpnext.projects.doctype.project.test_project import make_project
 
 test_dependencies = ["Item", "Cost Center", "Payment Term", "Payment Terms Template"]
 test_ignore = ["Serial No"]
@@ -434,6 +435,8 @@
 		)
 
 	def test_total_purchase_cost_for_project(self):
+		make_project({'project_name':'_Test Project'})
+
 		existing_purchase_cost = frappe.db.sql("""select sum(base_net_amount)
 			from `tabPurchase Invoice Item` where project = '_Test Project' and docstatus=1""")
 		existing_purchase_cost = existing_purchase_cost and existing_purchase_cost[0][0] or 0
@@ -819,7 +822,7 @@
 			"Creditors - _TC": {
 				"cost_center": cost_center
 			},
-			"_Test Account Cost for Goods Sold - _TC": {
+			"Cost of Goods Sold - _TC": {
 				"cost_center": cost_center
 			}
 		}
@@ -856,10 +859,8 @@
 
 		for gle in gl_entries:
 			self.assertEqual(expected_values[gle.account]["cost_center"], gle.cost_center)
-	
-	def test_purchase_invoice_with_project_link(self):
-		from erpnext.projects.doctype.project.test_project import make_project
 
+	def test_purchase_invoice_with_project_link(self):
 		project = make_project({
 			'project_name': 'Purchase Invoice Project',
 			'project_template_name': 'Test Project Template',
@@ -890,9 +891,9 @@
 			debit_in_account_currency, credit_in_account_currency
 			from `tabGL Entry` where voucher_type='Purchase Invoice' and voucher_no=%s
 			order by account asc""", pi.name, as_dict=1)
-		
+
 		self.assertTrue(gl_entries)
-		
+
 		for gle in gl_entries:
 			self.assertEqual(expected_values[gle.account]["project"], gle.project)
 
diff --git a/erpnext/accounts/doctype/sales_invoice/test_records.json b/erpnext/accounts/doctype/sales_invoice/test_records.json
index ebe6e3d..11ebe6a 100644
--- a/erpnext/accounts/doctype/sales_invoice/test_records.json
+++ b/erpnext/accounts/doctype/sales_invoice/test_records.json
@@ -3,6 +3,7 @@
   "company": "_Test Company",
   "conversion_rate": 1.0,
   "currency": "INR",
+  "cost_center": "_Test Cost Center - _TC",
   "customer": "_Test Customer",
   "customer_name": "_Test Customer",
   "debit_to": "_Test Receivable - _TC",
@@ -37,7 +38,8 @@
     "charge_type": "On Net Total",
     "description": "VAT",
     "doctype": "Sales Taxes and Charges",
-    "parentfield": "taxes",
+	"parentfield": "taxes",
+	"cost_center": "_Test Cost Center - _TC",
     "rate": 6
    },
    {
@@ -45,7 +47,8 @@
     "charge_type": "On Net Total",
     "description": "Service Tax",
     "doctype": "Sales Taxes and Charges",
-    "parentfield": "taxes",
+	"parentfield": "taxes",
+	"cost_center": "_Test Cost Center - _TC",
     "rate": 6.36
    }
   ],
@@ -76,6 +79,7 @@
   "customer_name": "_Test Customer",
   "debit_to": "_Test Receivable - _TC",
   "doctype": "Sales Invoice",
+  "cost_center": "_Test Cost Center - _TC",
   "items": [
    {
     "amount": 500.0,
@@ -107,7 +111,8 @@
     "charge_type": "On Net Total",
     "description": "VAT",
     "doctype": "Sales Taxes and Charges",
-    "parentfield": "taxes",
+	"parentfield": "taxes",
+	"cost_center": "_Test Cost Center - _TC",
     "rate": 16
    },
    {
@@ -115,7 +120,8 @@
     "charge_type": "On Net Total",
     "description": "Service Tax",
     "doctype": "Sales Taxes and Charges",
-    "parentfield": "taxes",
+	"parentfield": "taxes",
+	"cost_center": "_Test Cost Center - _TC",
     "rate": 10
    }
   ],
@@ -132,6 +138,7 @@
   "customer_name": "_Test Customer",
   "debit_to": "_Test Receivable - _TC",
   "doctype": "Sales Invoice",
+  "cost_center": "_Test Cost Center - _TC",
   "items": [
    {
     "cost_center": "_Test Cost Center - _TC",
@@ -259,6 +266,7 @@
   "customer_name": "_Test Customer",
   "debit_to": "_Test Receivable - _TC",
   "doctype": "Sales Invoice",
+  "cost_center": "_Test Cost Center - _TC",
   "items": [
    {
     "cost_center": "_Test Cost Center - _TC",