/*
    * Copyright (C) 2014 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
    *
    *     http://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.codehaus.gmavenplus.util;
  
  import org.apache.maven.plugin.logging.Log;
  import org.junit.Test;
  import org.mockito.ArgumentCaptor;
  
  import static java.util.Collections.emptyList;
  import static org.junit.Assert.*;
  import static org.mockito.Mockito.*;
  
  
  /**
   * Unit tests for the ClassWrangler class.
   *
   * @author Keegan Witt
   */
  public class ClassWranglerTest {
  
      @Test
      public void testGetGroovyJar() throws Exception {
          ClassWrangler classWrangler = spy(new ClassWrangler(emptyList(), null, mock(Log.class)));
          doThrow(new ClassNotFoundException("Throwing exception to force GMavenPlus to get version from jar.")).when(classWrangler).getClass(anyString());
          doReturn("some/path/groovy-all-1.5.0.jar").when(classWrangler).getJarPath();
          assertEquals("groovy-all-1.5.0.jar", classWrangler.getGroovyJar());
      }
  
      @Test
      public void testGetGroovyVersionStringFromGroovySystemThenFromInvokerHelper() throws Exception {
          ClassWrangler classWrangler = spy(new ClassWrangler(emptyList(), null, mock(Log.class)));
          doThrow(new ClassNotFoundException("Throwing exception to force GMavenPlus to try other methods."))
                  .when(classWrangler).getClass(anyString());
          doReturn("some/path/groovy-all-1.5.0.jar").when(classWrangler).getJarPath();
          ArgumentCaptor<String> classArg = ArgumentCaptor.forClass(String.class);
          classWrangler.getGroovyVersionString();
          verify(classWrangler, times(2)).getClass(classArg.capture());
          assertEquals("groovy.lang.GroovySystem", classArg.getAllValues().get(0));
          assertEquals("org.codehaus.groovy.runtime.InvokerHelper", classArg.getAllValues().get(1));
      }
  
      @Test
      public void testGetGroovyVersionStringFromJar() throws Exception {
          ClassWrangler classWrangler = spy(new ClassWrangler(emptyList(), null, mock(Log.class)));
          doThrow(new ClassNotFoundException("Throwing exception to force GMavenPlus to get version from jar.")).when(classWrangler).getClass(anyString());
          doReturn("some/path/groovy-all-1.5.0.jar").when(classWrangler).getJarPath();
          assertEquals("1.5.0", classWrangler.getGroovyVersionString());
      }
  
      @Test
      public void testGetGroovyVersionWithIndyFromJar() throws Exception {
          ClassWrangler classWrangler = spy(new ClassWrangler(emptyList(), null, mock(Log.class)));
          doThrow(new ClassNotFoundException("Throwing exception to force GMavenPlus to get version from jar.")).when(classWrangler).getClass(anyString());
          doReturn("some/path/groovy-all-2.4.0-indy.jar").when(classWrangler).getJarPath();
          assertEquals("2.4.0", classWrangler.getGroovyVersion().toString());
      }
  
      @Test
      public void testGetGroovyVersionWithGrooidFromJar() throws Exception {
          ClassWrangler classWrangler = spy(new ClassWrangler(emptyList(), null, mock(Log.class)));
          doThrow(new ClassNotFoundException("Throwing exception to force GMavenPlus to get version from jar.")).when(classWrangler).getClass(anyString());
          doReturn("some/path/groovy-all-2.4.0-grooid.jar").when(classWrangler).getJarPath();
          assertEquals("2.4.0", classWrangler.getGroovyVersion().toString());
      }
  
      @Test
      public void testIsGroovyIndyTrue() throws Exception {
          ClassWrangler classWrangler = spy(new ClassWrangler(emptyList(), null, mock(Log.class)));
          doReturn(null).when(classWrangler).getClass(anyString());  // make it appear Groovy is indy
          assertTrue(classWrangler.isGroovyIndy());
      }
  
      @Test
      public void testIsGroovyIndyFalse() throws Exception {
          ClassWrangler classWrangler = spy(new ClassWrangler(emptyList(), null, mock(Log.class)));
          doThrow(new ClassNotFoundException("Throwing exception to make it appear Groovy is not indy.")).when(classWrangler).getClass(anyString());
          assertFalse(classWrangler.isGroovyIndy());
      }
  
  }