/*
    * Licensed to the Apache Software Foundation (ASF) under one
    * or more contributor license agreements.  See the NOTICE file
    * distributed with this work for additional information
    * regarding copyright ownership.  The ASF licenses this file
    * to you 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
    *
   *   https://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.apache.commons.compress.harmony.unpack200;
  
  import static org.junit.jupiter.api.Assertions.assertEquals;
  
  import java.util.stream.Stream;
  
  import org.junit.jupiter.api.Test;
  import org.junit.jupiter.params.ParameterizedTest;
  import org.junit.jupiter.params.provider.Arguments;
  import org.junit.jupiter.params.provider.MethodSource;
  
  class SegmentUtilsTest {
  
      private static final class MultipleMatches implements IMatcher {
  
          private final int divisor;
  
          MultipleMatches(final int divisor) {
              this.divisor = divisor;
          }
  
          @Override
          public boolean matches(final long value) {
              return value % divisor == 0;
          }
  
      }
  
      public static final IMatcher even = new MultipleMatches(2);
      public static final IMatcher five = new MultipleMatches(5);
  
      static Stream<Arguments> countArgs() {
          return Stream.of(Arguments.of("()V", 0), Arguments.of("(D)V", 1), Arguments.of("([D)V", 1), Arguments.of("([[D)V", 1), Arguments.of("(DD)V", 2),
                  Arguments.of("(DDD)V", 3), Arguments.of("(Lblah/blah;D)V", 2), Arguments.of("(Lblah/blah;DLbLah;)V", 3));
      }
  
      static Stream<Arguments> countInvokeInterfaceArgs() {
          return Stream.of(Arguments.of("(Z)V", 1), Arguments.of("(D)V", 2), Arguments.of("(J)V", 2), Arguments.of("([D)V", 1), Arguments.of("([[D)V", 1),
                  Arguments.of("(DD)V", 4), Arguments.of("(Lblah/blah;D)V", 3), Arguments.of("(Lblah/blah;DLbLah;)V", 4),
                  Arguments.of("([Lblah/blah;DLbLah;)V", 4));
      }
  
      @ParameterizedTest
      @MethodSource("countArgs")
      void testCountArgs(final String descriptor, final int expectedArgsCount) {
          assertEquals(expectedArgsCount, SegmentUtils.countArgs(descriptor));
      }
  
      @ParameterizedTest
      @MethodSource("countInvokeInterfaceArgs")
      void testCountInvokeInterfaceArgs(final String descriptor, final int expectedCountInvokeInterfaceArgs) {
          assertEquals(expectedCountInvokeInterfaceArgs, SegmentUtils.countInvokeInterfaceArgs(descriptor));
      }
  
      @Test
      void testMatches() {
          final long[] oneToTen = { 1, 2, 3, 4, 5, 6, 7, 8, 9, 10 };
          assertEquals(6, SegmentUtils.countMatches(new long[][] { oneToTen, new long[] { 5, 6, 7 } }, even));
          assertEquals(5, SegmentUtils.countMatches(new long[][] { oneToTen }, even));
          assertEquals(5, SegmentUtils.countMatches(oneToTen, even));
          assertEquals(3, SegmentUtils.countMatches(new long[][] { oneToTen, new long[] { 5, 6, 7 } }, five));
          assertEquals(2, SegmentUtils.countMatches(new long[][] { oneToTen }, five));
          assertEquals(2, SegmentUtils.countMatches(oneToTen, five));
      }
  }