Intuitive DSL for Java

/*
 * This file is part of the Intuitive DSL project.
 * Copyright (c) 2026 DBA Labs - Switzerland. All rights reserved.
 *
 * This program is dual-licensed under a commercial license and the AGPLv3.
 * For commercial licensing, contact us at [email protected] or visit https://www.dbalabs.ch.
 *
 * AGPLv3 licensing:
 * This program is free software: you can redistribute it and/or modify
 * it under the terms of the GNU Affero General Public License as published by
 * the Free Software Foundation, version 3 (19 November 2007).
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
 * GNU Affero General Public License for more details.
 *
 * You should have received a copy of the GNU Affero General Public License
 * along with this program. If not, see <https://www.gnu.org/licenses/agpl-3.0.html>.
 */

package ch.dbalabs.intuitivedsl.binding;

import ch.dbalabs.intuitivedsl.annotation.Bind;
import ch.dbalabs.intuitivedsl.annotation.OnClause;
import ch.dbalabs.intuitivedsl.parser.ParseResult;
import org.junit.jupiter.api.Test;

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

/**
 * Unit tests for the DslBinder component.
 *
 * @author DBA Labs
 */
class DslBinderTest {

    /**
     * Dummy class to act as an injection target for the binder.
     */
    static class DummyTarget {
        @Bind("username")
        @SuppressWarnings("unused")
        private String user;

        @Bind("age")
        @SuppressWarnings("unused")
        private Integer userAge;

        @OnClause("FORCE")
        @SuppressWarnings("unused")
        private boolean isForced;

        public String getUser() { return user; }
        public Integer getUserAge() { return userAge; }
        public boolean isForced() { return isForced; }
    }

    @Test
    void shouldInjectValuesUsingMethodHandles() {
        // Arrange
        DslBinder binder = new DslBinder(DummyTarget.class);
        DummyTarget target = new DummyTarget();

        // Simulate a successful parsing result
        ParseResult result = new ParseResult();
        result.addParameter("username", "", "john_doe");
        result.addParameter("age", "", "35");
        result.addKeyword("FORCE");

        // Act
        binder.bind(target, result);

        // Assert
        assertThat(target.getUser()).isEqualTo("john_doe");

        // The binder should have automatically converted the string "35" to an Integer
        assertThat(target.getUserAge()).isEqualTo(35);

        // The boolean flag should have been flipped to true
        assertThat(target.isForced()).isTrue();
    }
}