content: /*
   * MIT License
   *
   * Copyright (c) 2020 Alen Turkovic
   *
   * Permission is hereby granted, free of charge, to any person obtaining a copy
   * of this software and associated documentation files (the "Software"), to deal
   * in the Software without restriction, including without limitation the rights
   * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
   * copies of the Software, and to permit persons to whom the Software is
   * furnished to do so, subject to the following conditions:
   *
   * The above copyright notice and this permission notice shall be included in all
   * copies or substantial portions of the Software.
   *
   * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
   * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
   * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
   * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
   * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
   * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
   * SOFTWARE.
   */
  
  package com.github.alturkovic.lock.key;
  
  import com.github.alturkovic.lock.exception.EvaluationConvertException;
  import java.lang.reflect.Method;
  import java.util.Arrays;
  import java.util.HashSet;
  import java.util.List;
  import java.util.Set;
  import org.junit.jupiter.api.Test;
  import org.springframework.core.convert.support.DefaultConversionService;
  
  import static org.assertj.core.api.Assertions.assertThat;
  import static org.assertj.core.api.Assertions.assertThatThrownBy;
  
  public class SpelKeyGeneratorTest {
    private final KeyGenerator keyGenerator = new SpelKeyGenerator(new DefaultConversionService());
    private final MessageService service = new MessageService();
    private final Method sendMessageMethod;
  
    public SpelKeyGeneratorTest() throws NoSuchMethodException {
      sendMessageMethod = MessageService.class.getMethod("sendMessage", String.class);
    }
  
    @Test
    public void shouldGenerateExecutionPath() {
      assertThat(keyGenerator.resolveKeys("lock_", "#executionPath", service, sendMessageMethod, new Object[]{"hello"}))
        .containsExactly("lock_com.github.alturkovic.lock.key.SpelKeyGeneratorTest.MessageService.sendMessage");
    }
  
    @Test
    public void shouldGenerateSingleKeyFromContextAndVariables() {
      assertThat(keyGenerator.resolveKeys("lock_", "#p0", service, sendMessageMethod, new Object[]{"hello"}))
        .containsExactly("lock_hello");
  
      assertThat(keyGenerator.resolveKeys("lock_", "#a0", service, sendMessageMethod, new Object[]{"hello"}))
        .containsExactly("lock_hello");
  
      assertThat(keyGenerator.resolveKeys("lock_", "#message", service, sendMessageMethod, new Object[]{"hello"}))
        .containsExactly("lock_hello");
    }
  
    @Test
    public void shouldGenerateMultipleKeysFromContextAndVariablesWithList() {
      final String expression = "T(com.github.alturkovic.lock.key.SpelKeyGeneratorTest).generateKeys(#message)";
      assertThat(keyGenerator.resolveKeys("lock_", expression, service, sendMessageMethod, new Object[]{"p_"}))
        .containsExactly("lock_p_first", "lock_p_second");
    }
  
    @Test
    public void shouldGenerateMultipleKeysFromContextAndVariablesWithArray() {
      final String expression = "T(com.github.alturkovic.lock.key.SpelKeyGeneratorTest).generateArrayKeys(#message)";
      assertThat(keyGenerator.resolveKeys("lock_", expression, service, sendMessageMethod, new Object[]{"p_"}))
        .containsExactly("lock_p_first", "lock_15");
    }
  
    @Test
    public void shouldGenerateMultipleKeysFromContextAndVariablesWithMixedTypeValues() {
      final String expression = "T(com.github.alturkovic.lock.key.SpelKeyGeneratorTest).generateMixedKeys(#message)";
      assertThat(keyGenerator.resolveKeys("lock_", expression, service, sendMessageMethod, new Object[]{"p_"}))
        .containsExactly("lock_p_first", "lock_15");
    }
  
    @Test
    public void shouldFailWithExpressionThatEvaluatesInNull() {
      assertThatThrownBy(() -> keyGenerator.resolveKeys("lock_", "null", service, sendMessageMethod, new Object[]{"hello"}))
        .isInstanceOf(EvaluationConvertException.class);
    }
  
    @Test
    public void shouldFailWithExpressionThatEvaluatesInEmptyList() {
      assertThatThrownBy(() -> keyGenerator.resolveKeys("lock_", "T(java.util.Collections).emptyList()", service, sendMessageMethod, new Object[]{"hello"}))
        .isInstanceOf(EvaluationConvertException.class);
    }
  
    @Test
    public void shouldFailWithExpressionThatEvaluatesInListWithNullValue() {
      assertThatThrownBy(() -> keyGenerator.resolveKeys("lock_", "T(java.util.Collections).singletonList(null)", service, sendMessageMethod, new Object[]{"hello"}))
        .isInstanceOf(EvaluationConvertException.class);
    }
  
    @SuppressWarnings("unused")
    public static List<String> generateKeys(final String prefix) {
      return Arrays.asList(prefix + "first", prefix + "second");
    }
  
    @SuppressWarnings("unused")
    public static Object[] generateArrayKeys(final String prefix) {
      return new Object[] {prefix + "first", 15};
    }
  
    @SuppressWarnings("unused")
    public static Set<Object> generateMixedKeys(final String prefix) {
      return new HashSet<>(Arrays.asList(prefix + "first", 15));
    }
  
    @SuppressWarnings("unused")
    private static class MessageService {
      public void sendMessage(String message) {
      }
    }
  }