/*
 * Copyright (c) 2022 PANTHEON.tech, s.r.o. and others. All rights reserved.
 *
 * This program and the accompanying materials are made available under the
 * terms of the Eclipse Public License v1.0 which accompanies this distribution,
 * and is available at http://www.eclipse.org/legal/epl-v10.html
 */
package org.opendaylight.yangtools.yang.stmt;

import static org.hamcrest.CoreMatchers.instanceOf;
import static org.hamcrest.CoreMatchers.startsWith;
import static org.hamcrest.MatcherAssert.assertThat;
import static org.junit.Assert.assertThrows;

import java.io.IOException;
import java.net.URISyntaxException;
import org.junit.Test;
import org.opendaylight.yangtools.yang.common.QName;
import org.opendaylight.yangtools.yang.model.api.stmt.CaseEffectiveStatement;
import org.opendaylight.yangtools.yang.model.api.stmt.ChoiceEffectiveStatement;
import org.opendaylight.yangtools.yang.parser.api.YangSyntaxErrorException;
import org.opendaylight.yangtools.yang.parser.spi.meta.ReactorException;
import org.opendaylight.yangtools.yang.parser.spi.meta.SomeModifiersUnresolvedException;
import org.opendaylight.yangtools.yang.parser.spi.source.SourceException;

public class YT1410Test {
    @Test
    public void testRFC6020() {
        final var ex = assertThrows(SomeModifiersUnresolvedException.class,
            () -> StmtTestUtils.parseYangSource("/bugs/YT1410/foo.yang")).getCause();
        assertThat(ex, instanceOf(SourceException.class));
        assertThat(ex.getMessage(),
            startsWith("CHOICE is not valid for CHOICE. Error in module foo (QNameModule{ns=foo}) [at "));
    }

    @Test
    public void testRFC7950() throws YangSyntaxErrorException, ReactorException, URISyntaxException, IOException {
        final var module = StmtTestUtils.parseYangSource("/bugs/YT1410/bar.yang")
            .getModuleStatement(QName.create("bar", "bar"));
        final var one = module.findSchemaTreeNode(QName.create("bar", "one")).orElseThrow();
        assertThat(one, instanceOf(ChoiceEffectiveStatement.class));
        final var two = ((ChoiceEffectiveStatement) one).findSchemaTreeNode(QName.create("bar", "two")).orElseThrow();
        assertThat(two, instanceOf(CaseEffectiveStatement.class));
        assertThat(((CaseEffectiveStatement) two).findSchemaTreeNode(QName.create("bar", "two")).orElseThrow(),
            instanceOf(ChoiceEffectiveStatement.class));
    }
}