/*
 * Copyright 2012-present the original author or authors.
 *
 * Licensed 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
 *
 *      https://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 org.apache.grails.undertow.core;

import java.util.function.Predicate;

import io.undertow.Undertow;
import org.junit.jupiter.api.Test;

import org.springframework.aot.hint.RuntimeHints;
import org.springframework.aot.hint.predicate.RuntimeHintsPredicates;

import org.apache.grails.undertow.core.UndertowWebServer.UndertowWebServerRuntimeHints;

import org.springframework.util.ReflectionUtils;

import static org.assertj.core.api.Assertions.assertThat;

/**
 * Tests for {@link UndertowWebServerRuntimeHints}.
 *
 * @author Andy Wilkinson
 */
class UndertowWebServerRuntimeHintsTests {

    @Test
    void registersHints() throws ClassNotFoundException {
        RuntimeHints runtimeHints = new RuntimeHints();
        new UndertowWebServerRuntimeHints().registerHints(runtimeHints, getClass().getClassLoader());
        assertThat(RuntimeHintsPredicates.reflection().onFieldAccess(Undertow.class, "listeners"))
            .accepts(runtimeHints);
        assertThat(RuntimeHintsPredicates.reflection().onFieldAccess(Undertow.class, "channels")).accepts(runtimeHints);
        assertThat(reflectionOnField("io.undertow.Undertow$ListenerConfig", "type")).accepts(runtimeHints);
        assertThat(reflectionOnField("io.undertow.Undertow$ListenerConfig", "port")).accepts(runtimeHints);
        assertThat(reflectionOnField("io.undertow.protocols.ssl.UndertowAcceptingSslChannel", "ssl"))
            .accepts(runtimeHints);
    }

    private Predicate<RuntimeHints> reflectionOnField(String className, String fieldName)
        throws ClassNotFoundException {
        return RuntimeHintsPredicates.reflection()
            .onFieldAccess(ReflectionUtils.findField(Class.forName(className), fieldName));
    }

}
