content: /*
   * Licensed to the Apache Software Foundation (ASF) under one or more
   * contributor license agreements.  See the NOTICE file distributed with
   * this work for additional information regarding copyright ownership.
   * The ASF licenses this file to You under the Apache License, Version 2.0
   * (the "License"); you may not use this file except in compliance with
   * the License.  You may obtain a copy of the License at
   *
   *     http://www.apache.org/licenses/LICENSE-2.0
   *
   * Unless required by applicable law or agreed to in writing, software
   * distributed under the License is distributed on an "AS IS" BASIS,
   * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
   * See the License for the specific language governing permissions and
   * limitations under the License.
   */
  package network.aika.fields.oneobject;
  
  import network.aika.fields.defs.FieldDefinition;
  import network.aika.type.Obj;
  import network.aika.type.ObjImpl;
  import network.aika.type.TypeRegistry;
  import network.aika.type.TypeRegistryImpl;
  import org.junit.jupiter.api.Assertions;
  import org.junit.jupiter.api.Test;
  
  import static network.aika.fields.ExponentialFunction.exp;
  import static network.aika.fields.InputField.inputField;
  import static network.aika.fields.oneobject.TestType.SELF;
  
  
  /**
   * @author Lukas Molzberger
   */
  @SuppressWarnings({"unchecked", "rawtypes"})
  public class ExponentialFunctionTest {
  
      @Test
      public void testExponentialFunction() {
          TypeRegistry registry = new TypeRegistryImpl();
  
          TestType type = new TestType(registry, "test");
  
          FieldDefinition a = inputField(type, "a");
          FieldDefinition b = exp(type, "b")
                  .in(SELF, a, 0);
  
          registry.flattenTypeHierarchy();
  
          Obj o = type.instantiate();
  
          Assertions.assertNull(o.getFieldOutput(a));
          Assertions.assertNull(o.getFieldOutput(b));
  
          o.setFieldValue(a, 5.0);
  
          Assertions.assertNotNull(o.getFieldOutput(b));
  
          Assertions.assertEquals(
                  148.413159102576603,
                  o.getFieldOutput(b).getValue()
          );
      }
  }
  