code: /*
   * 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
   *
   *     http://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.skywalking.oap.meter.analyzer.dsl.rule;
  
  import lombok.extern.slf4j.Slf4j;
  import org.apache.skywalking.oap.meter.analyzer.prometheus.rule.Rule;
  import org.apache.skywalking.oap.meter.analyzer.prometheus.rule.Rules;
  import org.apache.skywalking.oap.server.library.module.ModuleStartException;
  import org.junit.jupiter.params.ParameterizedTest;
  import org.junit.jupiter.params.provider.MethodSource;
  
  import java.io.IOException;
  import java.util.Arrays;
  import java.util.Collection;
  import java.util.List;
  
  import static org.assertj.core.api.AssertionsForClassTypes.assertThat;
  
  @Slf4j
  public class RuleLoaderTest {
      public static Collection<Object[]> data() {
          return Arrays.asList(new Object[][] {
                  {Arrays.asList("test-folder/*.yml"), 1},
                  {Arrays.asList("test-folder/*.yaml"), 2},
                  {Arrays.asList("test-folder/*"), 3},
                  {Arrays.asList("/test-folder/*"), 3},
  
                  {Arrays.asList("test-folder/case1"), 1},
                  {Arrays.asList("/test-folder/case1.yaml"), 1},
                  {Arrays.asList("/test-folder/case2.yml"), 1},
  
                  {Arrays.asList("single-file-case.yaml"), 1},
                  {Arrays.asList("single-file-case"), 1},
                  {Arrays.asList("/single-file-case"), 1},
  
                  {Arrays.asList("/single-file-case.yaml", "test-folder/*"), 4},
                  {Arrays.asList("/single-file-case.yaml", "test-folder/*.yml"), 2},
                  {Arrays.asList("/single-file-case.yaml", "test-folder/case1", "/test-folder/case2"), 3},
                  // test leading and trailing whitespace
                  {Arrays.asList("   /single-file-case.yaml    "), 1},
          });
      }
  
      @ParameterizedTest
      @MethodSource("data")
      public void test(List<String> enabledRule,
                       int rulesNumber) throws ModuleStartException, IOException {
          List<Rule> rules = Rules.loadRules("otel-rules", enabledRule);
          assertThat(rules.size()).isEqualTo(rulesNumber);
      }
  
  }
  