diff --git a/purchase_customer_requisition/tests/__init__.py b/purchase_customer_requisition/tests/__init__.py
new file mode 100644
index 0000000..165f23c
--- /dev/null
+++ b/purchase_customer_requisition/tests/__init__.py
@@ -0,0 +1 @@
+from . import test_purchase_order
diff --git a/purchase_customer_requisition/tests/test_purchase_order.py b/purchase_customer_requisition/tests/test_purchase_order.py
new file mode 100644
index 0000000..2692980
--- /dev/null
+++ b/purchase_customer_requisition/tests/test_purchase_order.py
@@ -0,0 +1,107 @@
+from odoo.tests import TransactionCase, tagged
+from odoo import Command, fields
+from datetime import timedelta
+
+
+@tagged("post_install", "-at_install")
+class TestPurchaseOrder(TransactionCase):
+    @classmethod
+    def setUpClass(cls):
+        super().setUpClass()
+        cls.supplier = cls.env.ref("base.res_partner_18")
+        cls.client_1 = cls.env.ref("base.res_partner_2")
+        cls.client_2 = cls.env.ref("base.res_partner_3")
+        cls.client_3 = cls.env.ref("base.res_partner_4")
+        cls.product_1 = cls.env.ref("product.product_delivery_01")
+        cls.product_2 = cls.env.ref("product.product_delivery_02")
+
+        cls.env["stock.rule"].search(
+            [
+                ("action", "=", "pull"),
+                (
+                    "location_dest_id",
+                    "=",
+                    cls.env.ref("stock.stock_location_customers").id,
+                ),
+            ]
+        ).write({"procure_method": "mts_else_mto"})
+
+        cls.env["product.supplierinfo"].create(
+            [
+                {
+                    "partner_id": cls.supplier.id,
+                    "product_id": cls.product_1.id,
+                    "price": 2000,
+                },
+                {
+                    "partner_id": cls.supplier.id,
+                    "product_id": cls.product_2.id,
+                    "price": 3000,
+                },
+            ]
+        )
+
+        cls.agreement_1 = cls.env["purchase.requisition"].create(
+            {
+                "name": "ATRACK 123",
+                "vendor_id": 1,
+                "customer_ids": [Command.set([cls.client_1.id, cls.client_2.id])],
+                "line_ids": [
+                    Command.create(
+                        {
+                            "product_id": cls.product_1.id,
+                            "product_qty": 100,
+                            "price_unit": 1000,
+                        }
+                    ),
+                    Command.create(
+                        {
+                            "product_id": cls.product_2.id,
+                            "product_qty": 100,
+                            "price_unit": 2000,
+                        }
+                    ),
+                ],
+                "date_start": fields.Date.today() - timedelta(days=100),
+                "date_end": fields.Date.today() + timedelta(days=265),
+            }
+        )
+        cls.agreement_1.action_confirm()
+        cls.agreement_2 = cls.env["purchase.requisition"].create(
+            {
+                "name": "ATRACK 456",
+                "vendor_id": 1,
+                "customer_ids": [Command.set([cls.client_3.id])],
+                "line_ids": [
+                    Command.create(
+                        {
+                            "product_id": cls.product_1.id,
+                            "product_qty": 100,
+                            "price_unit": 1500,
+                        }
+                    ),
+                ],
+                "date_start": fields.Date.today() - timedelta(days=100),
+                "date_end": fields.Date.today() + timedelta(days=265),
+            }
+        )
+        cls.agreement_1.action_confirm()
+
+    def test_one_purchase_order_line_gets_correct_agreement(self):
+        sale_order = self.env["sale.order"].create(
+            {
+                "partner_id": self.client_1.id,
+                "order_line": [
+                    Command.create(
+                        {
+                            "product_id": self.product_1.id,
+                            "product_uom_qty": 50,
+                        }
+                    )
+                ],
+            }
+        )
+        sale_order.action_confirm()
+
+        purchase_line = sale_order.order_line[0].purchase_line_ids
+        self.assertEqual(purchase_line.requisition_id, self.agreement_1)