TestMessages.java

package com.nicewuerfel.blockown;

import static org.junit.Assert.assertTrue;

import com.nicewuerfel.blockown.output.DebugOutput;
import org.apache.commons.io.FileUtils;
import org.junit.AfterClass;
import org.junit.BeforeClass;
import org.junit.Test;

import java.io.File;
import java.io.IOException;
import java.lang.reflect.Field;
import java.lang.reflect.Modifier;
import java.util.ArrayList;
import java.util.List;

import javax.annotation.Nonnull;

public class TestMessages {

  private static File testFolder;

  @BeforeClass
  public static void createTestFolder() throws IOException {
    testFolder = new File("MessageTest");
    if (testFolder.exists()) {
      FileUtils.deleteDirectory(testFolder);
    }
    assertTrue(testFolder.mkdir());
    Message.loadMessages(new DebugOutput(), new File(testFolder, "messages.yml"));
  }

  @Test
  public void testMessages() throws IllegalAccessException {
    Field[] declaredFields = Message.class.getDeclaredFields();
    ArrayList<String> missing = new ArrayList<>(128);
    for (Field field : declaredFields) {
      if (Modifier.isStatic(field.getModifiers())) {
        if (!field.getName().equals("messages") && !field.getName().startsWith("COLOR")
            && !field.getName().startsWith("$")) {
          Message message = (Message) field.get(null);
          assertTrue(message != null);
          if (!verifyMessage(message)) {
            missing.add(message.getPath());
          }
        }
      }
    }
    assertTrue("There are missing messages: " + System.lineSeparator() + asString(missing),
        missing.isEmpty());
  }

  private String asString(List<String> list) {
    StringBuilder b = new StringBuilder(list.size() * 20);
    for (String s : list) {
      b.append(s).append(System.lineSeparator());
    }
    return b.toString();
  }

  private boolean verifyMessage(@Nonnull Message message) {
    String messageString = message.toString();
    return messageString != null && !messageString.isEmpty();
  }

  @AfterClass
  public static void cleanUp() throws IOException {
    FileUtils.deleteDirectory(testFolder);
  }
}