package ruke.vrj.compiler;

import org.junit.Assert;
import org.junit.Test;

/**
 * Created by Ruke on 18/12/2016.
 */
public class TypeTest {

  @Test
  public void checkAlreadyDefined() {
    String code = String.join("\n",
        "type buff extends integer",
        "type buff extends integer",
        "type bar extends integer"
    );

    Compiler compiler = new Compiler();
    compiler.compile(code);

    Assert.assertEquals(1, compiler.getAllErrors().size());
    Assert.assertEquals(
        "2:5 - Type buff is already defined",
        compiler.getAllErrors().get(0).getMessage()
    );
  }

  @Test
  public void checkDefined() {
    String code = String.join("\n",
        "type lorem extends ipsum"
    );

    Compiler compiler = new Compiler();
    compiler.compile(code);

    Assert.assertEquals(1, compiler.getAllErrors().size());
    Assert.assertEquals(
        "1:19 - ipsum is not defined",
        compiler.getAllErrors().get(0).getMessage()
    );
  }

}

package ruke.vrj.compiler;

import org.junit.Assert;
import org.junit.Test;

/**
 * MIT License
 *
 * Copyright (c) 2017 Franco Montenegro
 *
 * Permission is hereby granted, free of charge, to any person obtaining a copy
 * of this software and associated documentation files (the "Software"), to deal
 * in the Software without restriction, including without limitation the rights
 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
 * copies of the Software, and to permit persons to whom the Software is
 * furnished to do so, subject to the following conditions:
 *
 * The above copyright notice and this permission notice shall be included in all
 * copies or substantial portions of the Software.
 *
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
 * SOFTWARE.
 */
public class TypeTest {

  @Test
  public void define() {
    final String code = String.join("\n",
        "type foo",
        "type bar extends foo"
    );

    final Compiler compiler = new Compiler();

    compiler.compile(code);

    Assert.assertTrue(compiler.getResults().isEmpty());
  }

  @Test
  public void alreadyDefined() {
    final String code = String.join("\n",
        "type foo",
        "type foo",
        "type bar"
    );

    final Compiler compiler = new Compiler();

    compiler.compile(code);

    Assert.assertEquals(1, compiler.getResults().size());
    Assert.assertEquals(
        "(2,5,8): Symbol foo is already defined in (1,5,8)",
        compiler.getResults().get(0).toString()
    );
  }

}

Add type compiler tests