Issue #57: Tests

easyrules-core/src/test/java/org/easyrules/BasicRuleTest.java

@@ -0,0 +1,109 @@
+package org.easyrules;
+
+
+import static org.assertj.core.api.Assertions.assertThat;
+import static org.easyrules.core.RulesEngineBuilder.aNewRulesEngine;
+
+import java.util.Set;
+
+import org.easyrules.api.Rule;
+import org.easyrules.api.RulesEngine;
+import org.easyrules.core.BasicRule;
+import org.junit.BeforeClass;
+import org.junit.Test;
+
+
+public class BasicRuleTest {
+
+    private static RulesEngine rulesEngine;
+
+
+    @BeforeClass
+    public static void init() {
+        rulesEngine = aNewRulesEngine().build();
+    }
+
+
+    @Test
+    public void testCompareTo() {
+        FirstRule rule1 = new FirstRule();
+        FirstRule rule2 = new FirstRule();
+
+        assertThat(rule1.compareTo(rule2)).isEqualTo(0);
+        assertThat(rule2.compareTo(rule1)).isEqualTo(0);
+    }
+
+
+    @Test
+    public void testSortSequence() {
+        FirstRule rule1 = new FirstRule();
+        SecondRule rule2 = new SecondRule();
+        ThirdRule rule3 = new ThirdRule();
+
+        rulesEngine.registerRule(rule1);
+        rulesEngine.registerRule(rule2);
+        rulesEngine.registerRule(rule3);
+
+        rulesEngine.checkRules();
+        Set<Rule> theRules = rulesEngine.getRules();
+        assertThat(theRules).containsSequence(rule1, rule3, rule2);
+    }
+
+    class FirstRule extends BasicRule {
+        @Override
+        public int getPriority() {
+            return 1;
+        }
+
+
+        @Override
+        public boolean evaluate() {
+            return true;
+        }
+
+
+        @Override
+        public String getName() {
+            return "rule1";
+        }
+    }
+
+    class SecondRule extends BasicRule {
+        @Override
+        public int getPriority() {
+            return 3;
+        }
+
+
+        @Override
+        public boolean evaluate() {
+            return true;
+        }
+
+
+        @Override
+        public String getName() {
+            return "rule2";
+        }
+    }
+
+    class ThirdRule extends BasicRule {
+        @Override
+        public int getPriority() {
+            return 2;
+        }
+
+
+        @Override
+        public boolean evaluate() {
+            return true;
+        }
+
+
+        @Override
+        public String getName() {
+            return "rule3";
+        }
+    }
+
+}