luni/src/test/java/libcore/java/text/OldFormatTest.java

/*
 * 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 libcore.java.text;

import java.text.AttributedCharacterIterator;
import java.text.FieldPosition;
import java.text.Format;
import java.text.ParseException;
import java.text.ParsePosition;
import junit.framework.TestCase;


public class OldFormatTest extends TestCase {
    private class MockFormat extends Format {

        public StringBuffer format(Object obj, StringBuffer toAppendTo,
                FieldPosition pos) {
            // it is a fake
            if (obj == null)
                throw new NullPointerException("obj is null");
            return new StringBuffer("");
        }

        public Object parseObject(String source, ParsePosition pos) {
            // it is a fake
            return null;
        }
    }

    public void test_Constructor() {
        new MockFormat();
    }

    /**
     * java.text.Format#clone() Test of method java.text.Format#clone().
     *        Compare of internal variables of cloned objects.
     */
    public void test_clone() {
        // Compare of internal variables of cloned objects
        Format fm = new MockFormat();
        Format fmc = (Format) fm.clone();
        assertEquals(fm.getClass(), fmc.getClass());
    }

    public void test_formatLjava_lang_Object() {
        MockFormat mf = new MockFormat();
        assertEquals("", mf.format(""));
        assertTrue("It calls an abstract metod format", true);
    }

    public void test_formatToCharacterIteratorLjava_lang_Object() {
        MockFormat mf = new MockFormat();
        AttributedCharacterIterator aci = mf.formatToCharacterIterator("Test 123 Test");

        assertEquals(0, aci.getBeginIndex());

        try {
            mf.formatToCharacterIterator(null);
            fail("NullPointerException was not thrown.");
        } catch(NullPointerException npe) {
            //expected
        }

        try {
            mf.formatToCharacterIterator("");
        } catch(IllegalArgumentException  iae) {
            //expected
        }
    }

    public void test_parseObjectLjava_lang_String() {
        MockFormat mf = new MockFormat();
        try {
            assertNull(mf.parseObject(""));
            fail("ParseException was not thrown.");
        } catch (ParseException e) {
            //expected
        }
    }
}