package eu.simuline.octave;
   
   import org.junit.Ignore;
   import org.junit.Test;
   
   import java.util.Collection;
   
   import static org.junit.Assert.assertEquals;
   
  import org.junit.Ignore;
  import org.junit.Test;
  
  /**
   * Test {@link OctaveUtils}
   */
  public class TestOctaveUtils {
  
      /**
       * Test that the list of variables is empty. 
       */
      @Test public void testListVarsEmpty() {
          final OctaveEngine octave = new OctaveEngineFactory().getScriptEngine();
          final Collection<String> collection = OctaveUtils.listVars(octave);
          assertEquals(collection.toString(), 0, collection.size());
          octave.close();
      }
  
      /**
       * Test that the list of variables has 1 or 2 entries. 
       * **** better: test concrete collection of variables. 
       */
      @Test public void testListVarsOneTwo() {
          final OctaveEngine octave = new OctaveEngineFactory().getScriptEngine();
  
          octave.eval("my_var = 42;");
          final Collection<String> collection1 = OctaveUtils.listVars(octave);
          assertEquals(collection1.toString(), 1, collection1.size());
  
          octave.eval("1 + 2;");
          octave.eval("my_other_var = 42;");
          final Collection<String> collection2 = OctaveUtils.listVars(octave);
          assertEquals(collection2.toString(), 2, collection2.size());
  
          octave.close();
      }
  
      public static void main(String[] args) {
      }
  
  }