Refactor move tests from ebean-core to ebean-test

ebean-test/src/test/java/org/tests/basic/TestUpdateManyToOne.java

@@ -0,0 +1,40 @@
+package org.tests.basic;
+
+import io.ebean.BaseTestCase;
+import io.ebean.DB;
+import org.tests.model.basic.Customer;
+import org.tests.model.basic.Order;
+import org.tests.model.basic.ResetBasicData;
+import org.junit.jupiter.api.Test;
+
+import java.util.List;
+
+public class TestUpdateManyToOne extends BaseTestCase {
+
+  @Test
+  public void test() {
+
+    ResetBasicData.reset();
+
+    List<Customer> custs = DB.find(Customer.class).findList();
+
+    List<Order> orders = DB.find(Order.class).setMaxRows(1).findList();
+
+    Order order = orders.get(0);
+    Customer customer = order.getCustomer();
+
+    Customer changeCust = null;
+    for (Customer c : custs) {
+      if (!customer.getId().equals(c.getId())) {
+        changeCust = c;
+        break;
+      }
+    }
+    order.setCustomer(changeCust);
+    DB.save(order);
+
+    order.setCustomer(customer);
+    DB.save(order);
+
+  }
+}