Update integration tests to include billing_address and non-existing addresses.

Author: juanzgc

integration-tests/http/__tests__/order/admin/order.spec.ts

@@ -94,6 +94,40 @@ medusaIntegrationTestRunner({
             id: order.id,
           }),
         ])
+
+        response = await api.get(`/admin/orders?q=does-not-exist`, adminHeaders)
+
+        expect(response.data.orders).toHaveLength(0)
+        expect(response.data.orders).toEqual([])
+      })
+
+      it("should search orders by billing address", async () => {
+        let response = await api.get(`/admin/orders?fields=+billing_address.address_1,+billing_address.address_2`, adminHeaders)
+
+        expect(response.data.orders).toHaveLength(1)
+        expect(response.data.orders).toEqual([
+          expect.objectContaining({
+            id: order.id, 
+          }),
+        ])
+
+        response = await api.get(`/admin/orders?fields=+billing_address.address_1,+billing_address.address_2&q=${order.billing_address.address_1}`, adminHeaders)
+
+        expect(response.data.orders).toHaveLength(1)
+        expect(response.data.orders).toEqual([
+          expect.objectContaining({
+            id: order.id,
+          }),
+        ])
+
+        response = await api.get(`/admin/orders?q=${order.billing_address.address_2}`, adminHeaders)
+
+        expect(response.data.orders).toHaveLength(1)
+        expect(response.data.orders).toEqual([
+          expect.objectContaining({
+            id: order.id, 
+          }),
+        ])
       })
     })