content: /*******************************************************************************
   * Copyright (c) 2009, 2019 Mountainminds GmbH & Co. KG and Contributors
   * All rights reserved. This program and the accompanying materials
   * are made available under the terms of the Eclipse Public License v1.0
   * which accompanies this distribution, and is available at
   * http://www.eclipse.org/legal/epl-v10.html
   *
   * Contributors:
   *    Evgeny Mandrikov - initial API and implementation
   *
   *******************************************************************************/
  package org.jacoco.core.internal.analysis.filter;
  
  import org.jacoco.core.internal.instr.InstrSupport;
  import org.junit.Test;
  import org.objectweb.asm.Label;
  import org.objectweb.asm.Opcodes;
  import org.objectweb.asm.tree.MethodNode;
  
  /**
   * Unit tests for {@link KotlinNotNullOperatorFilter}.
   */
  public class KotlinNotNullOperatorFilterTest extends FilterTestBase {
  
  	private final KotlinNotNullOperatorFilter filter = new KotlinNotNullOperatorFilter();
  
  	private final MethodNode m = new MethodNode(InstrSupport.ASM_API_VERSION, 0,
  			"example", "()V", null, null);
  
  	/**
  	 * <pre>
  	 *     return x!!.length
  	 * </pre>
  	 */
  	@Test
  	public void should_filter() {
  		m.visitVarInsn(Opcodes.ALOAD, 1);
  		m.visitInsn(Opcodes.DUP);
  
  		final Range range = new Range();
  		final Label label = new Label();
  		m.visitJumpInsn(Opcodes.IFNONNULL, label);
  		range.fromInclusive = m.instructions.getLast();
  		// no line number here and hence no probe
  		m.visitMethodInsn(Opcodes.INVOKESTATIC,
  				"kotlin/jvm/internal/Intrinsics", "throwNpe", "()V", false);
  		range.toInclusive = m.instructions.getLast();
  
  		m.visitLabel(label);
  		m.visitMethodInsn(Opcodes.INVOKEVIRTUAL, "java/lang/String", "length",
  				"()I", false);
  		m.visitInsn(Opcodes.IRETURN);
  
  		filter.filter(m, context, output);
  
  		assertIgnored(range);
  	}
  
  }
  