/*
    * SPDX-FileCopyrightText: Copyright (c) 2011-2026 Yegor Bugayenko
    * SPDX-License-Identifier: MIT
    */
   package com.qulice.pmd;
   
   import com.jcabi.matchers.RegexMatchers;
   import org.hamcrest.Matchers;
   import org.junit.jupiter.api.Test;
  
  /**
   * Test case for {@link PmdValidator}'s rule that static fields and
   * methods must be accessed via the class name, not via an instance
   * or {@code this}.
   *
   * @since 0.25.1
   */
  final class PmdStaticAccessTest {
  
      /**
       * Pattern: static field accessed directly or via instance.
       */
      private static final String STATIC_ACCESS =
          "%s\\[\\d+-\\d+\\]: Static fields should be accessed in a static way \\[CLASS_NAME.FIELD_NAME\\]\\.";
  
      /**
       * Pattern: static member accessed via {@code this} reference.
       */
      private static final String STATIC_VIA_THIS =
          "%s\\[\\d+-\\d+\\]: Static members should be accessed in a static way \\[CLASS_NAME.FIELD_NAME\\], not via instance reference.";
  
      @Test
      void acceptsCallToStaticFieldsInStaticWay() throws Exception {
          final String file = "StaticAccessToStaticFields.java";
          new PmdAssert(
              file,
              Matchers.is(true),
              Matchers.allOf(
                  Matchers.not(
                      RegexMatchers.containsPattern(
                          String.format(PmdStaticAccessTest.STATIC_ACCESS, file)
                      )
                  ),
                  Matchers.not(
                      RegexMatchers.containsPattern(
                          String.format(PmdStaticAccessTest.STATIC_VIA_THIS, file)
                      )
                  )
              )
          ).assertOk();
      }
  
      @Test
      void acceptsDirectAccessToStaticFieldInStaticInitializer() throws Exception {
          final String file = "StaticInitializerAssignsFinalField.java";
          new PmdAssert(
              file,
              Matchers.is(true),
              Matchers.not(
                  RegexMatchers.containsPattern(
                      String.format(PmdStaticAccessTest.STATIC_ACCESS, file)
                  )
              )
          ).assertOk();
      }
  
      @Test
      void forbidsCallToStaticFieldsDirectly() throws Exception {
          final String file = "DirectAccessToStaticFields.java";
          new PmdAssert(
              file,
              Matchers.is(false),
              RegexMatchers.containsPattern(
                  String.format(PmdStaticAccessTest.STATIC_ACCESS, file)
              )
          ).assertOk();
      }
  
      @Test
      void forbidsCallToStaticFieldsViaThis() throws Exception {
          final String file = "AccessToStaticFieldsViaThis.java";
          new PmdAssert(
              file,
              Matchers.is(false),
              RegexMatchers.containsPattern(
                  String.format(PmdStaticAccessTest.STATIC_VIA_THIS, file)
              )
          ).assertOk();
      }
  
      @Test
      void forbidsCallToStaticMethodsViaThis() throws Exception {
          final String file = "AccessToStaticMethodsViaThis.java";
          new PmdAssert(
              file,
              Matchers.is(false),
              RegexMatchers.containsPattern(
                  String.format(PmdStaticAccessTest.STATIC_VIA_THIS, file)
              )
         ).assertOk();
     }
 }