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;
  
  import com.google.common.collect.ImmutableMap;
  import lombok.extern.slf4j.Slf4j;
  import org.junit.jupiter.params.ParameterizedTest;
  import org.junit.jupiter.params.provider.MethodSource;
  
  import java.util.Arrays;
  import java.util.Collection;
  
  import static com.google.common.collect.ImmutableMap.of;
  import static org.assertj.core.api.Assertions.assertThat;
  import static org.junit.jupiter.api.Assertions.fail;
  
  @Slf4j
  public class ValueFilterTest {
      public static Collection<Object[]> data() {
          return Arrays.asList(new Object[][] {
              {
                  "valueEqual",
                  of("http_success_request", SampleFamilyBuilder.newBuilder(
                      Sample.builder().labels(of("idc", "t1")).value(2).name("http_success_request").build(),
                      Sample.builder().labels(of("idc", "t2")).value(2).name("http_success_request").build(),
                      Sample.builder().labels(of("idc", "t3")).value(1).name("http_success_request").build()
                  ).build()),
                  "http_success_request.valueEqual(1)",
                  Result.success(SampleFamilyBuilder.newBuilder(
                      Sample.builder().labels(of("idc", "t3")).value(1).name("http_success_request").build()
                  ).build()),
                  false,
                  },
              {
                  "valueNotEqual",
                  of("http_success_request", SampleFamilyBuilder.newBuilder(
                      Sample.builder().labels(of("idc", "t1")).value(2).name("http_success_request").build(),
                      Sample.builder().labels(of("idc", "t2")).value(2).name("http_success_request").build(),
                      Sample.builder().labels(of("idc", "t3")).value(1).name("http_success_request").build()
                  ).build()),
                  "http_success_request.valueNotEqual(1)",
                  Result.success(SampleFamilyBuilder.newBuilder(
                      Sample.builder().labels(of("idc", "t1")).value(2).name("http_success_request").build(),
                      Sample.builder().labels(of("idc", "t2")).value(2).name("http_success_request").build()
                  ).build()),
                  false,
                  },
              {
                  "valueGreater",
                  of("http_success_request", SampleFamilyBuilder.newBuilder(
                      Sample.builder().labels(of("idc", "t1")).value(2).name("http_success_request").build(),
                      Sample.builder().labels(of("idc", "t2")).value(2).name("http_success_request").build(),
                      Sample.builder().labels(of("idc", "t3")).value(1).name("http_success_request").build()
                  ).build()),
                  "http_success_request.valueGreater(1)",
                  Result.success(SampleFamilyBuilder.newBuilder(
                      Sample.builder().labels(of("idc", "t1")).value(2).name("http_success_request").build(),
                      Sample.builder().labels(of("idc", "t2")).value(2).name("http_success_request").build()
                  ).build()),
                  false,
                  },
              {
                  "valueGreaterEqual",
                  of("http_success_request", SampleFamilyBuilder.newBuilder(
                      Sample.builder().labels(of("idc", "t1")).value(2).name("http_success_request").build(),
                      Sample.builder().labels(of("idc", "t2")).value(2).name("http_success_request").build(),
                      Sample.builder().labels(of("idc", "t3")).value(1).name("http_success_request").build()
                  ).build()),
                  "http_success_request.valueGreaterEqual(1)",
                  Result.success(SampleFamilyBuilder.newBuilder(
                      Sample.builder().labels(of("idc", "t1")).value(2).name("http_success_request").build(),
                      Sample.builder().labels(of("idc", "t2")).value(2).name("http_success_request").build(),
                      Sample.builder().labels(of("idc", "t3")).value(1).name("http_success_request").build()
                  ).build()),
                  false,
                  },
              {
                  "valueLess",
                  of("http_success_request", SampleFamilyBuilder.newBuilder(
                      Sample.builder().labels(of("idc", "t1")).value(2).name("http_success_request").build(),
                      Sample.builder().labels(of("idc", "t2")).value(2).name("http_success_request").build(),
                      Sample.builder().labels(of("idc", "t3")).value(1).name("http_success_request").build()
                  ).build()),
                  "http_success_request.valueLess(2)",
                  Result.success(SampleFamilyBuilder.newBuilder(
                      Sample.builder().labels(of("idc", "t3")).value(1).name("http_success_request").build()
                  ).build()),
                  false,
                  },
              {
                  "valueLessEqual",
                  of("http_success_request", SampleFamilyBuilder.newBuilder(
                      Sample.builder().labels(of("idc", "t1")).value(2).name("http_success_request").build(),
                      Sample.builder().labels(of("idc", "t2")).value(2).name("http_success_request").build(),
                      Sample.builder().labels(of("idc", "t3")).value(1).name("http_success_request").build()
                  ).build()),
                  "http_success_request.valueLessEqual(2)",
                  Result.success(SampleFamilyBuilder.newBuilder(
                      Sample.builder().labels(of("idc", "t1")).value(2).name("http_success_request").build(),
                      Sample.builder().labels(of("idc", "t2")).value(2).name("http_success_request").build(),
                      Sample.builder().labels(of("idc", "t3")).value(1).name("http_success_request").build()
                  ).build()),
                  false,
                  },
              });
      }
  
      @ParameterizedTest(name = "{0}")
      @MethodSource("data")
      public void test(final String name,
                       final ImmutableMap<String, SampleFamily> input,
                       final String expression,
                       final Result want,
                       final boolean isThrow) {
          Expression e = DSL.parse(expression);
          Result r = null;
          try {
              r = e.run(input);
          } catch (Throwable t) {
              if (isThrow) {
                  return;
              }
              log.error("Test failed", t);
              fail("Should not throw anything");
          }
          if (isThrow) {
              fail("Should throw something");
          }
          assertThat(r).isEqualTo(want);
      }
  }
  