/**
 * Licensed to Apereo under one or more contributor license agreements. See the NOTICE file
 * distributed with this work for additional information regarding copyright ownership. Apereo
 * 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 the
 * following location:
 *
 * <p>http://www.apache.org/licenses/LICENSE-2.0
 *
 * <p>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 org.apereo.portal.json.rendering;

import static org.junit.Assert.assertEquals;
import static org.junit.Assert.assertFalse;
import static org.junit.Assert.assertNotNull;
import static org.junit.Assert.assertTrue;
import static org.junit.Assert.fail;

import java.util.Arrays;
import java.util.NoSuchElementException;
import org.apereo.portal.character.stream.CharacterEventBufferReader;
import org.apereo.portal.character.stream.CharacterEventReader;
import org.apereo.portal.character.stream.events.CharacterDataEventImpl;
import org.apereo.portal.character.stream.events.CharacterEvent;
import org.apereo.portal.character.stream.events.CharacterEventTypes;
import org.junit.Test;

/**
 */
public class JsonWrapperFilteringCharacterEventReaderTest {
    @Test
    public void testFilteringEvents() {
        final CharacterEventReader baseEventReader =
                new CharacterEventBufferReader(
                        Arrays.asList(
                                        CharacterDataEventImpl.create("<layout>"),
                                        JsonLayoutPlaceholderEventImpl.INSTANCE,
                                        CharacterDataEventImpl.create("{'yay':json}"),
                                        JsonLayoutPlaceholderEventImpl.INSTANCE,
                                        CharacterDataEventImpl.create("</layout>"))
                                .listIterator());

        final JsonWrapperFilteringCharacterEventReader jsonWrapperFilteringCharacterEventReader =
                new JsonWrapperFilteringCharacterEventReader(baseEventReader);

        CharacterEvent event;

        assertTrue(jsonWrapperFilteringCharacterEventReader.hasNext());
        event = jsonWrapperFilteringCharacterEventReader.peek();
        assertNotNull(event);
        assertEquals(CharacterEventTypes.CHARACTER, event.getEventType());

        assertTrue(jsonWrapperFilteringCharacterEventReader.hasNext());
        event = jsonWrapperFilteringCharacterEventReader.peek();
        assertNotNull(event);
        assertEquals(CharacterEventTypes.CHARACTER, event.getEventType());

        assertTrue(jsonWrapperFilteringCharacterEventReader.hasNext());
        event = jsonWrapperFilteringCharacterEventReader.next();
        assertNotNull(event);
        assertEquals(CharacterEventTypes.CHARACTER, event.getEventType());

        assertFalse(jsonWrapperFilteringCharacterEventReader.hasNext());
        try {
            event = jsonWrapperFilteringCharacterEventReader.peek();
            fail();
        } catch (NoSuchElementException e) {
        }

        try {
            event = jsonWrapperFilteringCharacterEventReader.next();
            fail();
        } catch (NoSuchElementException e) {
        }
    }
}