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 *  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
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package org.apache.cayenne.exp.parser;

import org.apache.cayenne.ObjectId;
import org.apache.cayenne.Persistent;
import org.junit.Test;

import java.util.ArrayList;
import java.util.Collections;
import java.util.List;

import static org.junit.Assert.assertEquals;
import static org.junit.Assert.assertNotEquals;
import static org.junit.Assert.assertNotNull;
import static org.mockito.Mockito.mock;
import static org.mockito.Mockito.when;

public class ASTListTest {

    @Test
	public void testConstructorWithCollection() {
		ObjectId objectId = new ObjectId("Artist", "ARTIST_ID", 1);
		Persistent artist = mock(Persistent.class);
		when(artist.getObjectId()).thenReturn(objectId);

		ASTList exp = new ASTList(Collections.singletonList(artist));
		assertNotNull(exp.getOperand(0));

		List<Persistent> collection = new ArrayList<>();
		collection.add(artist);
		exp = new ASTList(collection);
		assertNotNull(exp.getOperand(0));
	}

	@Test
	public void testEquals() throws Exception {
		ObjectId objectId = new ObjectId("Artist", "ARTIST_ID", 1);
		Persistent artist = mock(Persistent.class);
		when(artist.getObjectId()).thenReturn(objectId);

		ASTList exp = new ASTList(Collections.singletonList(artist));

		List<Persistent> collection = new ArrayList<>();
		collection.add(artist);
		ASTList exp2 = new ASTList(collection);
		ASTList exp3 = new ASTList(Collections.emptyList());

		assertEquals(exp, exp2);
		assertNotEquals(exp, exp3);
	}

	@Test
	public void testHashCode() throws Exception {
		ObjectId objectId = new ObjectId("Artist", "ARTIST_ID", 1);
		Persistent artist = mock(Persistent.class);
		when(artist.getObjectId()).thenReturn(objectId);

		ASTList exp = new ASTList(Collections.singletonList(artist));
		List<Persistent> collection = new ArrayList<>();
		collection.add(artist);
		ASTList exp2 = new ASTList(collection);
		ASTList exp3 = new ASTList(Collections.emptyList());

		assertEquals(exp.hashCode(), exp2.hashCode());
		assertNotEquals(exp.hashCode(), exp3.hashCode());
	}
    
}