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package bsh;

import org.junit.Assert;
import org.junit.Test;

public class BshMethodTest {

    /**
     * Verifies that subclasses are not considered equal to superclass interfaces
     * with a (potential) subset of the subclasses fields.
     */
    @SuppressWarnings("serial")
    @Test
    public void testEqualsObject_subclassEquality() {
       // define a simple subclass of BshMethod:
       class SubMethod extends BshMethod {
          public SubMethod(String name, Class<?> returnType, String[] paramNames,
                Class<?>[] paramTypes, Modifiers[] paramModifiers, BSHBlock methodBody,
                NameSpace declaringNameSpace, Modifiers modifiers) {
             super(name, returnType, paramNames, paramTypes, paramModifiers,
                     methodBody, declaringNameSpace, modifiers,
                     false /*isVarArgs*/);
          }
       }
       final String name = "testMethod";

       final BshMethod subInst =
            new SubMethod(name, Integer.class, new String[] {}, new Class[] {},
                    new Modifiers[] {}, null, null, null);
       final BshMethod supInst =
            new BshMethod(name, Integer.class, new String[] {}, new Class[] {},
                    new Modifiers[] {}, null, null, null, false);

       Assert.assertFalse("Subclasses should not be equal to super classes",
            supInst.equals(subInst));
    }

    /**
     * Very simple test to verify hashcode contract.
     */
    @Test
    public void testHashCode_contract() {
       final String name = "testMethod";
       final BshMethod method1 = new BshMethod(name,
             Integer.class, new String[0], new Class[0], new Modifiers[0], null, null, null, false);
       final BshMethod method2 = new BshMethod(name,
             Integer.class, new String[0], new Class[0], new Modifiers[0], null, null, null, false);

       Assert.assertTrue("precondition check for test failed.",
             method2.equals(method1));
       Assert.assertEquals("Equal classes should have equal hashcodes",
             method2.hashCode(), method1.hashCode());
    }
}
