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

   1 package wtf.metio.reguloj;
   2
   3 import org.junit.jupiter.api.DisplayName;
   4 import org.junit.jupiter.api.Test;
   5 import org.mockito.BDDMockito;
   6 import org.mockito.Mockito;
   7
   8 import java.util.List;
   9
  10 final class LimitedRuleEngineTest extends RuleEngineTCK {
  11
  12     @Override
  13     protected RuleEngine<Context<Object>> createRuleEngine() {
  14         return new LimitedRuleEngine<>(2);
  15     }
  16
  17     @Test
  18     @DisplayName("limit the number of loops")
  19     void shouldRunTwoTimesWithMatchingRules() {
  20         BDDMockito.given(rule.fires(context)).willReturn(Boolean.TRUE);
  21         BDDMockito.given(rule2.fires(context)).willReturn(Boolean.TRUE);
  22
  23         engine.infer(List.of(rule, rule2), context);
  24
  25         Mockito.verify(rule, Mockito.times(2)).run(context);
  26         Mockito.verify(rule2, Mockito.times(2)).run(context);
  27     }
  28
  29     @Test
  30     @DisplayName("iterate over all rules at least once")
  31     void shouldRunOnceWithNonMatchingRules() {
  32         BDDMockito.given(rule.fires(context)).willReturn(Boolean.FALSE);
  33         BDDMockito.given(rule2.fires(context)).willReturn(Boolean.FALSE);
  34
  35         engine.infer(List.of(rule, rule2), context);
  36
  37         Mockito.verify(rule, Mockito.times(1)).fires(context);
  38         Mockito.verify(rule2, Mockito.times(1)).fires(context);
  39     }
  40
  41 }