// ASM: a very small and fast Java bytecode manipulation framework
// Copyright (c) 2000-2011 INRIA, France Telecom
// All rights reserved.
//
// Redistribution and use in source and binary forms, with or without
// modification, are permitted provided that the following conditions
// are met:
// 1. Redistributions of source code must retain the above copyright
//    notice, this list of conditions and the following disclaimer.
// 2. Redistributions in binary form must reproduce the above copyright
//    notice, this list of conditions and the following disclaimer in the
//    documentation and/or other materials provided with the distribution.
// 3. Neither the name of the copyright holders nor the names of its
//    contributors may be used to endorse or promote products derived from
//    this software without specific prior written permission.
//
// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
// AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
// IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
// ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
// LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
// CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
// SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
// INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
// CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
// ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
// THE POSSIBILITY OF SUCH DAMAGE.
package org.objectweb.asm.xml;

import static org.junit.jupiter.api.Assertions.assertThrows;

import org.junit.jupiter.api.BeforeEach;
import org.junit.jupiter.api.Test;
import org.objectweb.asm.AnnotationVisitor;
import org.objectweb.asm.ClassVisitor;
import org.objectweb.asm.FieldVisitor;
import org.objectweb.asm.Label;
import org.objectweb.asm.MethodVisitor;
import org.objectweb.asm.Opcodes;
import org.objectweb.asm.TypePath;
import org.xml.sax.SAXException;
import org.xml.sax.helpers.AttributesImpl;

/**
 * ASMContentHandler unit tests
 *
 * @author Eric Bruneton
 */
public class ASMContentHandlerTest implements Opcodes {

  ASMContentHandler h;

  ClassVisitor cv;

  MethodVisitor mv;

  @BeforeEach
  public void setUp() throws Exception {
    h =
        new ASMContentHandler(
            new ClassVisitor(Opcodes.ASM5) {

              AnnotationVisitor av =
                  new AnnotationVisitor(Opcodes.ASM5) {

                    @Override
                    public AnnotationVisitor visitAnnotation(String name, String desc) {
                      return this;
                    }

                    @Override
                    public AnnotationVisitor visitArray(String name) {
                      return this;
                    }
                  };

              @Override
              public AnnotationVisitor visitAnnotation(String desc, boolean visible) {
                return av;
              }

              @Override
              public AnnotationVisitor visitTypeAnnotation(
                  int typeRef, TypePath typePath, String desc, boolean visible) {
                return av;
              }

              @Override
              public FieldVisitor visitField(
                  int access, String name, String desc, String signature, Object value) {
                return new FieldVisitor(Opcodes.ASM5) {

                  @Override
                  public AnnotationVisitor visitAnnotation(String desc, boolean visible) {
                    return av;
                  }

                  @Override
                  public AnnotationVisitor visitTypeAnnotation(
                      int typeRef, TypePath typePath, String desc, boolean visible) {
                    return av;
                  }
                };
              }

              @Override
              public MethodVisitor visitMethod(
                  int access, String name, String desc, String signature, String[] exceptions) {
                return new MethodVisitor(Opcodes.ASM5) {

                  @Override
                  public AnnotationVisitor visitAnnotationDefault() {
                    return av;
                  }

                  @Override
                  public AnnotationVisitor visitAnnotation(String desc, boolean visible) {
                    return av;
                  }

                  @Override
                  public AnnotationVisitor visitTypeAnnotation(
                      int typeRef, TypePath typePath, String desc, boolean visible) {
                    return av;
                  }

                  @Override
                  public AnnotationVisitor visitParameterAnnotation(
                      int parameter, String desc, boolean visible) {
                    return av;
                  }

                  @Override
                  public AnnotationVisitor visitInsnAnnotation(
                      int typeRef, TypePath typePath, String desc, boolean visible) {
                    return av;
                  }

                  @Override
                  public AnnotationVisitor visitTryCatchAnnotation(
                      int typeRef, TypePath typePath, String desc, boolean visible) {
                    return av;
                  }

                  @Override
                  public AnnotationVisitor visitLocalVariableAnnotation(
                      int typeRef,
                      TypePath typePath,
                      Label[] start,
                      Label[] end,
                      int[] index,
                      String desc,
                      boolean visible) {
                    return av;
                  }
                };
              }
            });
    cv = new SAXClassAdapter(h, true);
    cv.visit(V1_5, ACC_PUBLIC, "C", null, "java/lang/Object", null);
  }

  protected void methodSetUp() {
    mv = cv.visitMethod(0, "<init>", "()V", null, null);
    mv.visitCode();
    mv.visitVarInsn(ALOAD, 0);
    mv.visitMethodInsn(INVOKESPECIAL, "java/lang/Object", "<init>", "()V", false);
  }

  @Test
  public void testInvalidOpcode() throws SAXException {
    methodSetUp();
    AttributesImpl attrs = new AttributesImpl();    
    assertThrows(SAXException.class, () -> h.startElement("", "opcode", "", attrs));
  }

  @Test
  public void testInvalidValueDescriptor() throws SAXException {
    methodSetUp();
    AttributesImpl attrs = new AttributesImpl();
    attrs.addAttribute("", "desc", "desc", "", "desc");
    attrs.addAttribute("", "cst", "cst", "", "");
    assertThrows(SAXException.class, () -> h.startElement("", "LDC", "", attrs));
  }

  @Test
  public void testInvalidValue() throws SAXException {
    methodSetUp();
    AttributesImpl attrs = new AttributesImpl();
    attrs.addAttribute("", "desc", "desc", "", "Ljava/lang/String;");
    attrs.addAttribute("", "cst", "cst", "", "\\");
    assertThrows(SAXException.class, () -> h.startElement("", "LDC", "", attrs));
  }

  @Test
  public void testEndDocument() {
    cv.visitEnd();
    try {
      h.endDocument();
    } catch (SAXException e) {
    }
  }
}
