content: /*
   * Copyright 2010-2025 Hyland Software, Inc. and its affiliates.
   *
   * Licensed 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.activiti.engine.impl.el.variable;
  
  import static org.assertj.core.api.Assertions.assertThat;
  import static org.mockito.BDDMockito.given;
  import static org.mockito.Mockito.mock;
  
  import com.fasterxml.jackson.databind.JsonNode;
  import com.fasterxml.jackson.databind.ObjectMapper;
  import java.util.Arrays;
  import org.activiti.engine.delegate.VariableScope;
  import org.activiti.engine.impl.persistence.entity.VariableInstance;
  import org.junit.Test;
  
  public class VariableElResolverTest {
  
      private ObjectMapper objectMapper = new ObjectMapper();
      private VariableElResolver resolver = new VariableElResolver(objectMapper);
  
      @Test
      public void canResolve_should_returnTrueWhenVariableScopeHasVariableForProperty() {
          //given
          VariableScope variableScope = mock(VariableScope.class);
          given(variableScope.hasVariable("myVar")).willReturn(true);
  
          //when
          boolean canResolve = resolver.canResolve("myVar", variableScope);
  
          //then
          assertThat(canResolve).isTrue();
      }
  
      @Test
      public void canResolve_should_returnFalseWhenVariableScopeDoesNotHaveVariableForProperty() {
          //given
          VariableScope variableScope = mock(VariableScope.class);
          given(variableScope.hasVariable("myVar")).willReturn(false);
  
          //when
          boolean canResolve = resolver.canResolve("myVar", variableScope);
  
          //then
          assertThat(canResolve).isFalse();
      }
  
      @Test
      public void resolve_should_returnVariableInstanceValueWhenItsNotJsonArray() {
          //given
          VariableScope variableScope = buildVariableScope("myVar", "myValue", "string");
  
          //when
          Object result = resolver.resolve("myVar", variableScope);
  
          //then
          assertThat(result).isEqualTo("myValue");
      }
  
      @Test
      public void resolve_should_returnVariableInstanceValueConvertedToListWhenItsJsonArray() throws Exception {
          //given
          JsonNode jsonNode = objectMapper.readTree("[\"green\", \"blue\", \"red\"]");
          VariableScope variableScope = buildVariableScope("colors", jsonNode, "json");
  
          //when
          Object result = resolver.resolve("colors", variableScope);
  
          //then
          assertThat(result).isEqualTo(Arrays.asList("green", "blue", "red"));
      }
  
      private VariableScope buildVariableScope(String variableName, Object variableValue, String type) {
          VariableScope variableScope = mock(VariableScope.class);
          VariableInstance variableInstance = mock(VariableInstance.class);
          given(variableInstance.getValue()).willReturn(variableValue);
          given(variableInstance.getTypeName()).willReturn(type);
          given(variableScope.getVariableInstance(variableName)).willReturn(variableInstance);
          return variableScope;
      }
  }
  