src/test/java/wtf/metio/reguloj/ChainedRuleEngineTest.java

   1 /*
   2  * This file is part of reguloj. It is subject to the license terms in the LICENSE file found in the top-level
   3  * directory of this distribution and at https://creativecommons.org/publicdomain/zero/1.0/. No part of reguloj,
   4  * including this file, may be copied, modified, propagated, or distributed except according to the terms contained
   5  * in the LICENSE file.
   6  */
   7
   8 package wtf.metio.reguloj;
   9
  10 import static org.mockito.BDDMockito.given;
  11 import static org.mockito.Mockito.times;
  12 import static org.mockito.Mockito.verify;
  13
  14 import java.util.List;
  15 import org.junit.jupiter.api.DisplayName;
  16 import org.junit.jupiter.api.Test;
  17
  18 final class ChainedRuleEngineTest extends RuleEngineTCK {
  19
  20   @Override
  21   protected RuleEngine<Context<Object>> createRuleEngine() {
  22     return new ChainedRuleEngine<>();
  23   }
  24
  25   @Test
  26   @DisplayName("loop as long as rules are firing")
  27   void shouldLoopWithFiringRule() {
  28     given(rule.fires(context)).willReturn(Boolean.TRUE).willReturn(Boolean.FALSE);
  29     engine.infer(List.of(rule), context);
  30     verify(rule, times(2)).fires(context);
  31     verify(rule, times(1)).run(context);
  32   }
  33
  34   @Test
  35   @DisplayName("do not loop when no rule is firing")
  36   void shouldNotLoopWithNotFiringRule() {
  37     given(rule.fires(context)).willReturn(Boolean.FALSE);
  38     engine.infer(List.of(rule), context);
  39     verify(rule, times(1)).fires(context);
  40     verify(rule, times(0)).run(context);
  41   }
  42
  43 }