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1   /*
2    * Logback: the reliable, generic, fast and flexible logging framework.
3    * Copyright (C) 1999-2026, QOS.ch. All rights reserved.
4    *
5    * This program and the accompanying materials are dual-licensed under
6    * either the terms of the Eclipse Public License v2.0 as published by
7    * the Eclipse Foundation
8    *
9    *   or (per the licensee's choosing)
10   *
11   * under the terms of the GNU Lesser General Public License version 2.1
12   * as published by the Free Software Foundation.
13   */
14  package ch.qos.logback.core.blackbox.joran.conditional;
15  
16  import ch.qos.logback.core.Context;
17  import ch.qos.logback.core.ContextBase;
18  import ch.qos.logback.core.blackbox.BlackboxCoreTestConstants;
19  import ch.qos.logback.core.blackbox.joran.BlackboxSimpleConfigurator;
20  import ch.qos.logback.core.blackbox.joran.action.BlackboxTopElementAction;
21  import ch.qos.logback.core.blackbox.joran.action.ext.BlackboxStackAction;
22  import ch.qos.logback.core.blackbox.model.BlackboxStackModel;
23  import ch.qos.logback.core.blackbox.model.BlackboxTopModel;
24  import ch.qos.logback.core.blackbox.model.processor.BlackboxStackModelHandler;
25  import ch.qos.logback.core.joran.action.Action;
26  import ch.qos.logback.core.joran.action.PropertyAction;
27  import ch.qos.logback.core.joran.conditional.ByPropertiesConditionAction;
28  import ch.qos.logback.core.joran.conditional.ElseAction;
29  import ch.qos.logback.core.joran.conditional.IfAction;
30  import ch.qos.logback.core.joran.conditional.ThenAction;
31  import ch.qos.logback.core.joran.spi.ElementSelector;
32  import ch.qos.logback.core.joran.spi.JoranException;
33  import ch.qos.logback.core.joran.spi.RuleStore;
34  import ch.qos.logback.core.model.ImplicitModel;
35  import ch.qos.logback.core.model.PropertyModel;
36  import ch.qos.logback.core.model.conditional.ByPropertiesConditionModel;
37  import ch.qos.logback.core.model.conditional.ElseModel;
38  import ch.qos.logback.core.model.conditional.IfModel;
39  import ch.qos.logback.core.model.conditional.ThenModel;
40  import ch.qos.logback.core.model.processor.DefaultProcessor;
41  import ch.qos.logback.core.model.processor.ImplicitModelHandler;
42  import ch.qos.logback.core.model.processor.NOPModelHandler;
43  import ch.qos.logback.core.model.processor.PropertyModelHandler;
44  import ch.qos.logback.core.model.processor.conditional.ByPropertiesConditionModelHandler;
45  import ch.qos.logback.core.model.processor.conditional.ElseModelHandler;
46  import ch.qos.logback.core.model.processor.conditional.IfModelHandler;
47  import ch.qos.logback.core.model.processor.conditional.ThenModelHandler;
48  import ch.qos.logback.core.status.Status;
49  import ch.qos.logback.core.status.StatusUtil;
50  import ch.qos.logback.core.testUtil.RandomUtil;
51  import ch.qos.logback.core.util.StatusPrinter;
52  import ch.qos.logback.core.util.StatusPrinter2;
53  import org.junit.jupiter.api.AfterEach;
54  import org.junit.jupiter.api.Assertions;
55  import org.junit.jupiter.api.BeforeEach;
56  import org.junit.jupiter.api.Disabled;
57  import org.junit.jupiter.api.Test;
58  
59  import java.util.Arrays;
60  import java.util.HashMap;
61  import java.util.Stack;
62  import java.util.function.Supplier;
63  
64  import static org.junit.jupiter.api.Assertions.assertTrue;
65  
66  public class IfThenElseTest {
67  
68      Context context = new ContextBase();
69      StatusUtil checker = new StatusUtil(context);
70      StatusPrinter2 statusPrinter2 = new StatusPrinter2();
71      BlackboxSimpleConfigurator simpleConfigurator;
72      int diff = RandomUtil.getPositiveInt();
73      static final String CONDITIONAL_DIR_PREFIX = BlackboxCoreTestConstants.JORAN_INPUT_PREFIX + "conditional/";
74  
75      String ki1 = "ki1";
76      String val1 = "val1";
77      String sysKey = "sysKey";
78      String dynaKey = "dynaKey";
79  
80      @BeforeEach
81      public void setUp() throws Exception {
82          HashMap<ElementSelector, Supplier<Action>> rulesMap = new HashMap<>();
83          rulesMap.put(new ElementSelector("x"), BlackboxTopElementAction::new);
84          rulesMap.put(new ElementSelector("x/stack"), BlackboxStackAction::new);
85          rulesMap.put(new ElementSelector("x/property"), PropertyAction::new);
86          rulesMap.put(new ElementSelector("*/condition"), ByPropertiesConditionAction::new);
87          rulesMap.put(new ElementSelector("*/if"), IfAction::new);
88          rulesMap.put(new ElementSelector("*/if/then"), ThenAction::new);
89          rulesMap.put(new ElementSelector("*/if/else"), ElseAction::new);
90  
91          simpleConfigurator = new BlackboxSimpleConfigurator(rulesMap) {
92              
93              @Override
94              protected void addElementSelectorAndActionAssociations(RuleStore rs) {
95                  super.addElementSelectorAndActionAssociations(rs);
96                  
97                  rs.addTransparentPathPart("if");
98                  rs.addTransparentPathPart("then");
99                  rs.addTransparentPathPart("else");
100 
101             }
102             
103             @Override
104             protected void addModelHandlerAssociations(DefaultProcessor defaultProcessor) {
105                 defaultProcessor.addHandler(BlackboxTopModel.class, NOPModelHandler::makeInstance);
106                 
107                 defaultProcessor.addHandler(BlackboxStackModel.class, BlackboxStackModelHandler::makeInstance);
108                 defaultProcessor.addHandler(PropertyModel.class, PropertyModelHandler::makeInstance);
109                 defaultProcessor.addHandler(ImplicitModel.class, ImplicitModelHandler::makeInstance);
110                 defaultProcessor.addHandler(ByPropertiesConditionModel.class, ByPropertiesConditionModelHandler::makeInstance);
111                 defaultProcessor.addHandler(IfModel.class, IfModelHandler::makeInstance);
112                 defaultProcessor.addHandler(ThenModel.class, ThenModelHandler::makeInstance);
113                 defaultProcessor.addHandler(ElseModel.class, ElseModelHandler::makeInstance);
114             }
115         };
116         
117         simpleConfigurator.setContext(context);
118     }
119 
120     @AfterEach
121     public void tearDown() throws Exception {
122         statusPrinter2.printIfErrorsOccured(context);
123         System.clearProperty(sysKey);
124     }
125 
126 
127     // ----------------------------------------------------------------------------------------------------
128     @Test
129     public void whenContextPropertyIsSet_IfThenBranchIsEvaluated() throws JoranException {
130         context.putProperty(ki1, val1);
131         simpleConfigurator.doConfigure(CONDITIONAL_DIR_PREFIX + "if0.xml");
132         verifyConfig(new String[] { "BEGIN", "a", "END" });
133     }
134 
135 
136 
137     @Test
138     public void whenContextPropertyIsSet_IfThenBranchIsEvaluated_WithoutJoran() throws JoranException {
139         context.putProperty(ki1, val1);
140 
141         simpleConfigurator.doConfigure(CONDITIONAL_DIR_PREFIX + "if0_NoJoran.xml");
142         verifyConfig(new String[] { "BEGIN", "a", "END" });
143     }
144     // ----------------------------------------------------------------------------------------------------
145     @Test
146     @Disabled
147     public void ifWithNew() throws JoranException {
148         context.putProperty(ki1, val1);
149         simpleConfigurator.doConfigure(CONDITIONAL_DIR_PREFIX + "ifNew.xml");
150         assertTrue(checker.containsMatch(Status.ERROR, IfModelHandler.BLACKLISTED_REF_DISALLOWED_MSG));
151         assertTrue(checker.containsMatch(Status.ERROR, IfModelHandler.BLACKLISTED_REF_DISALLOWED_SEE));
152         verifyConfig(new String[] { "BEGIN", "END" });
153     }
154 
155     @Test
156     @Disabled
157     public void ifWithNewSlashU() throws JoranException {
158         context.putProperty(ki1, val1);
159         simpleConfigurator.doConfigure(CONDITIONAL_DIR_PREFIX + "ifNewSlashU.xml");
160         assertTrue(checker.containsMatch(Status.ERROR, IfModelHandler.UNICODE_DISALLOWED_MSG));
161         assertTrue(checker.containsMatch(Status.ERROR, IfModelHandler.UNICODE_DISALLOWED_SEE));
162         //    assertTrue(checker.containsMatch(Status.ERROR, IfModelHandler.NEW_OPERATOR_DISALLOWED_MSG));
163         //assertTrue(checker.containsMatch(Status.ERROR, IfModelHandler.NEW_OPERATOR_DISALLOWED_SEE));
164         verifyConfig(new String[] { "BEGIN", "END" });
165     }
166 
167 
168     // ----------------------------------------------------------------------------------------------------
169     @Test
170     public void whenLocalPropertyIsSet_IfThenBranchIsEvaluated() throws JoranException {
171         simpleConfigurator.doConfigure(CONDITIONAL_DIR_PREFIX + "if_localProperty.xml");
172         verifyConfig(new String[] { "BEGIN", "a", "END" });
173     }
174 
175     @Test
176     public void whenLocalPropertyIsSet_IfThenBranchIsEvaluated_NoJoran() throws JoranException {
177         simpleConfigurator.doConfigure(CONDITIONAL_DIR_PREFIX + "if_localProperty_NoJoran.xml");
178         verifyConfig(new String[] { "BEGIN", "a", "END" });
179     }
180     // ----------------------------------------------------------------------------------------------------
181     @Test
182     public void whenNoPropertyIsDefined_ElseBranchIsEvaluated() throws JoranException {
183         simpleConfigurator.doConfigure(CONDITIONAL_DIR_PREFIX + "if0.xml");
184         verifyConfig(new String[] { "BEGIN", "b", "END" });
185     }
186 
187     @Test
188     public void whenNoPropertyIsDefined_ElseBranchIsEvaluated_NoJoran() throws JoranException {
189         simpleConfigurator.doConfigure(CONDITIONAL_DIR_PREFIX + "if0_NoJoran.xml");
190         verifyConfig(new String[] { "BEGIN", "b", "END" });
191     }
192     // ----------------------------------------------------------------------------------------------------
193 
194     @Test
195     public void whenContextPropertyIsSet_IfThenBranchIsEvaluated_NO_ELSE_DEFINED() throws JoranException {
196         context.putProperty(ki1, val1);
197         simpleConfigurator.doConfigure(CONDITIONAL_DIR_PREFIX + "ifWithoutElse.xml");
198         verifyConfig(new String[] { "BEGIN", "a", "END" });
199     }
200 
201     @Test
202     public void whenContextPropertyIsSet_IfThenBranchIsEvaluated_NO_ELSE_DEFINED_NoJoran() throws JoranException {
203         context.putProperty(ki1, val1);
204         simpleConfigurator.doConfigure(CONDITIONAL_DIR_PREFIX + "ifWithoutElse_NoJoran.xml");
205         verifyConfig(new String[] { "BEGIN", "a", "END" });
206     }
207     // ----------------------------------------------------------------------------------------------------
208     @Test
209     public void whenNoPropertyIsDefined_IfThenBranchIsNotEvaluated_NO_ELSE_DEFINED() throws JoranException {
210         simpleConfigurator.doConfigure(CONDITIONAL_DIR_PREFIX + "ifWithoutElse.xml");
211         verifyConfig(new String[] { "BEGIN", "END" });
212         assertTrue(checker.isErrorFree(0));
213     }
214 
215     @Test
216     public void whenNoPropertyIsDefined_IfThenBranchIsNotEvaluated_NO_ELSE_DEFINED_NoJoran() throws JoranException {
217         simpleConfigurator.doConfigure(CONDITIONAL_DIR_PREFIX + "ifWithoutElse_NoJoran.xml");
218         verifyConfig(new String[] { "BEGIN", "END" });
219         assertTrue(checker.isErrorFree(0));
220     }
221     // ----------------------------------------------------------------------------------------------------
222     @Test
223     public void nestedIf() throws JoranException {
224         simpleConfigurator.doConfigure(CONDITIONAL_DIR_PREFIX + "nestedIf.xml");
225         //StatusPrinter.print(context);
226         verifyConfig(new String[] { "BEGIN", "a", "c", "END" });
227         assertTrue(checker.isErrorFree(0));
228     }
229     @Test
230     public void nestedIf_NoJoran() throws JoranException {
231         simpleConfigurator.doConfigure(CONDITIONAL_DIR_PREFIX + "nestedIf_NoJoran.xml");
232         //StatusPrinter.print(context);
233         verifyConfig(new String[] { "BEGIN", "a", "c", "END" });
234         assertTrue(checker.isErrorFree(0));
235     }
236     // ----------------------------------------------------------------------------------------------------
237     @Test
238     public void useNonExistenceOfSystemPropertyToDefineAContextProperty() throws JoranException {
239         Assertions.assertNull(System.getProperty(sysKey));
240         Assertions.assertNull(context.getProperty(dynaKey));
241         simpleConfigurator.doConfigure(CONDITIONAL_DIR_PREFIX + "ifSystem.xml");
242         //System.out.println(dynaKey + "=" + context.getProperty(dynaKey));
243         Assertions.assertNotNull(context.getProperty(dynaKey));
244     }
245     @Test
246     public void useNonExistenceOfSystemPropertyToDefineAContextProperty_NoJoran() throws JoranException {
247         Assertions.assertNull(System.getProperty(sysKey));
248         Assertions.assertNull(context.getProperty(dynaKey));
249         simpleConfigurator.doConfigure(CONDITIONAL_DIR_PREFIX + "ifSystem_NoJoran.xml");
250         //System.out.println(dynaKey + "=" + context.getProperty(dynaKey));
251         Assertions.assertNotNull(context.getProperty(dynaKey));
252     }
253     // ----------------------------------------------------------------------------------------------------
254     @Test
255     public void noContextPropertyShouldBeDefinedIfSystemPropertyExists() throws JoranException {
256         System.setProperty(sysKey, "a");
257         Assertions.assertNull(context.getProperty(dynaKey));
258         System.out.println("before " + dynaKey + "=" + context.getProperty(dynaKey));
259         simpleConfigurator.doConfigure(CONDITIONAL_DIR_PREFIX + "ifSystem.xml");
260         System.out.println(dynaKey + "=" + context.getProperty(dynaKey));
261         Assertions.assertNull(context.getProperty(dynaKey));
262     }
263 
264     @Test
265     public void noContextPropertyShouldBeDefinedIfSystemPropertyExists_NoJoran() throws JoranException {
266         System.setProperty(sysKey, "a");
267         Assertions.assertNull(context.getProperty(dynaKey));
268         System.out.println("before " + dynaKey + "=" + context.getProperty(dynaKey));
269         simpleConfigurator.doConfigure(CONDITIONAL_DIR_PREFIX + "ifSystem_NoJoran.xml");
270         System.out.println(dynaKey + "=" + context.getProperty(dynaKey));
271         Assertions.assertNull(context.getProperty(dynaKey));
272     }
273     // ----------------------------------------------------------------------------------------------------
274 
275     private void verifyConfig(String[] expected) {
276         Stack<String> witness = new Stack<>();
277         witness.addAll(Arrays.asList(expected));
278         
279         @SuppressWarnings({ "unchecked", "rawtypes" })
280         Stack<String> aStack = (Stack) context.getObject(BlackboxStackModelHandler.STACK_TEST);
281         Assertions.assertEquals(witness, aStack);
282     }
283 
284 }