/*
    * 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.text.similarity;
  
  import static org.junit.jupiter.api.Assertions.assertEquals;
  
  import java.util.stream.Stream;
  
  import org.junit.jupiter.params.ParameterizedTest;
  import org.junit.jupiter.params.provider.Arguments;
  import org.junit.jupiter.params.provider.MethodSource;
  
  /**
   * Tests {@link EditDistanceFrom}.
   *
   * @param <R> The {@link EditDistance} return type.
   */
  public class ParameterizedEditDistanceFromTest<R> {
  
      public static Stream<Arguments> parameters() {
          return Stream.of(
                  Arguments.of(new HammingDistance(), "Sam I am.", "Ham I am.", 1),
                  Arguments.of(new HammingDistance(), "Japtheth, Ham, Shem", "Japtheth, HAM, Shem", 2),
                  Arguments.of(new HammingDistance(), "Hamming", "Hamming", 0),
  
                  Arguments.of(LevenshteinDistance.getDefaultInstance(), "Apache", "a patchy", 4),
                  Arguments.of(LevenshteinDistance.getDefaultInstance(), "go", "no go", 3),
                  Arguments.of(LevenshteinDistance.getDefaultInstance(), "go", "go", 0),
  
                  Arguments.of(new LevenshteinDistance(4), "Apache", "a patchy", 4),
                  Arguments.of(new LevenshteinDistance(4), "go", "no go", 3),
                  Arguments.of(new LevenshteinDistance(0), "go", "go", 0),
  
                  Arguments.of(
                      (EditDistance<Boolean>) (left, right) -> left == right || left != null && left.equals(right),
                      "Bob's your uncle.",
                      "Every good boy does fine.",
                      false));
      }
  
      @ParameterizedTest
      @MethodSource("parameters")
      void test(final EditDistance<R> editDistance, final CharSequence left, final CharSequence right, final R distance) {
          final EditDistanceFrom<R> editDistanceFrom = new EditDistanceFrom<>(editDistance, left);
          assertEquals(distance, editDistanceFrom.apply(right));
      }
  
  }