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1
15 package org.apache.hivemind.order;
16
17 import hivemind.test.FrameworkTestCase;
18
19 import java.util.List  ;
20
21 import org.apache.commons.logging.Log;
22 import org.apache.commons.logging.LogFactory;
23 import org.apache.hivemind.ApplicationRuntimeException;
24 import org.apache.hivemind.ErrorHandler;
25 import org.apache.hivemind.impl.DefaultErrorHandler;
26 import org.apache.hivemind.test.AggregateArgumentsMatcher;
27 import org.apache.hivemind.test.ArgumentMatcher;
28 import org.apache.hivemind.test.TypeMatcher;
29 import org.easymock.MockControl;
30
31
36 public class TestOrderer extends FrameworkTestCase
37 {
38 private static final Log LOG = LogFactory.getLog(TestOrderer.class);
39
40 private ErrorHandler getErrorHandler()
41 {
42 return (ErrorHandler) newMock(ErrorHandler.class);
43 }
44
45 public void testNoDependencies() throws Exception
46 {
47 Orderer o = new Orderer(getErrorHandler(), "cartoon character");
48
49 o.add("FRED", "fred", null, null);
50 o.add("BARNEY", "barney", null, null);
51 o.add("WILMA", "wilma", null, null);
52 o.add("BETTY", "betty", null, null);
53
54 replayControls();
55
56 List l = o.getOrderedObjects();
57
58 assertListsEqual(new Object []
59 { "FRED", "BARNEY", "WILMA", "BETTY" }, l);
60
61 verifyControls();
62 }
63
64 public void testPrereq() throws Exception
65 {
66 Orderer o = new Orderer(getErrorHandler(), "cartoon character");
67
68 o.add("FRED", "fred", "wilma", null);
69 o.add("BARNEY", "barney", "betty", null);
70 o.add("BETTY", "betty", null, null);
71 o.add("WILMA", "wilma", null, null);
72
73 replayControls();
74
75 List l = o.getOrderedObjects();
76
77 assertListsEqual(new Object []
78 { "WILMA", "FRED", "BETTY", "BARNEY" }, l);
79
80 verifyControls();
81 }
82
83 public void testPostreq() throws Exception
84 {
85 Orderer o = new Orderer(getErrorHandler(), "cartoon character");
86
87 o.add("FRED", "fred", null, "barney,wilma");
88 o.add("BARNEY", "barney", null, "betty");
89 o.add("BETTY", "betty", null, null);
90 o.add("WILMA", "wilma", null, null);
91
92 replayControls();
93
94 List l = o.getOrderedObjects();
95
96 assertListsEqual(new Object []
97 { "FRED", "BARNEY", "BETTY", "WILMA" }, l);
98
99 verifyControls();
100 }
101
102 public void testPrePostreq() throws Exception
103 {
104 Orderer o = new Orderer(getErrorHandler(), "cartoon character");
105
106 o.add("FRED", "fred", null, "barney,wilma");
107 o.add("BARNEY", "barney", "wilma", "betty");
108 o.add("BETTY", "betty", null, null);
109 o.add("WILMA", "wilma", null, null);
110
111 replayControls();
112
113 List l = o.getOrderedObjects();
114
115 assertListsEqual(new Object []
116 { "FRED", "WILMA", "BARNEY", "BETTY" }, l);
117
118 verifyControls();
119 }
120
121 public void testUnknownPrereq() throws Exception
122 {
123 ErrorHandler eh = (ErrorHandler) newMock(ErrorHandler.class);
124
125 eh.error(LOG, "Unknown cartoon character dependency 'charlie' (for 'fred').", null, null);
126
127 replayControls();
128
129 Orderer o = new Orderer(LOG, eh, "cartoon character");
130
131 o.add("FRED", "fred", "charlie", "barney,wilma");
132 o.add("BARNEY", "barney", "wilma", "betty");
133 o.add("BETTY", "betty", null, null);
134 o.add("WILMA", "wilma", null, null);
135
136 List l = o.getOrderedObjects();
137
138 assertListsEqual(new Object []
139 { "FRED", "WILMA", "BARNEY", "BETTY" }, l);
140
141 verifyControls();
142 }
143
144 public void testUnknownPostreq() throws Exception
145 {
146 ErrorHandler eh = (ErrorHandler) newMock(ErrorHandler.class);
147
148 eh.error(LOG, "Unknown cartoon character dependency 'dino' (for 'betty').", null, null);
149
150 replayControls();
151
152 Orderer o = new Orderer(LOG, eh, "cartoon character");
153
154 o.add("FRED", "fred", null, "barney,wilma");
155 o.add("BARNEY", "barney", "wilma", "betty");
156 o.add("BETTY", "betty", null, "dino");
157 o.add("WILMA", "wilma", null, null);
158
159 List l = o.getOrderedObjects();
160
161 assertListsEqual(new Object []
162 { "FRED", "WILMA", "BARNEY", "BETTY" }, l);
163
164 verifyControls();
165 }
166
167 public void testCyclePre() throws Exception
168 {
169 MockControl c = newControl(ErrorHandler.class);
170 ErrorHandler eh = (ErrorHandler) c.getMock();
171
172 eh.error(
173 LOG,
174 "Unable to order cartoon character 'wilma' due to dependency cycle:"
175 + " A cycle has been detected from the initial object [wilma]",
176 null,
177 new ApplicationRuntimeException(""));
178
179 c.setMatcher(new AggregateArgumentsMatcher(new ArgumentMatcher[]
180 { null, null, null, new TypeMatcher() }));
181
182 replayControls();
183
184 Orderer o = new Orderer(LOG, eh, "cartoon character");
185
186 o.add("FRED", "fred", "wilma", null);
187 o.add("BARNEY", "barney", "betty", null);
188 o.add("BETTY", "betty", "fred", null);
189 o.add("WILMA", "wilma", "barney", null);
190
191 List l = o.getOrderedObjects();
192
193 assertListsEqual(new Object []
194 { "WILMA", "FRED", "BETTY", "BARNEY" }, l);
195
196 verifyControls();
197 }
198
199 public void testCyclePost() throws Exception
200 {
201 MockControl c = newControl(ErrorHandler.class);
202 ErrorHandler eh = (ErrorHandler) c.getMock();
203
204 eh
205 .error(
206 LOG,
207 "Unable to order cartoon character 'betty' due to dependency cycle: A cycle has been detected from the initial object [fred]",
208 null,
209 new ApplicationRuntimeException(""));
210
211 c.setMatcher(new AggregateArgumentsMatcher(new ArgumentMatcher[]
212 { null, null, null, new TypeMatcher() }));
213
214 replayControls();
215
216 Orderer o = new Orderer(LOG, eh, "cartoon character");
217
218 o.add("WILMA", "wilma", null, "betty");
219 o.add("FRED", "fred", null, "barney");
220 o.add("BARNEY", "barney", null, "wilma");
221 o.add("BETTY", "betty", null, "fred");
222
223 List l = o.getOrderedObjects();
224 assertListsEqual(new Object []
225 { "FRED", "BARNEY", "WILMA", "BETTY" }, l);
226
227 verifyControls();
228 }
229
230 public void testDupe() throws Exception
231 {
232 Orderer o = new Orderer(new DefaultErrorHandler(), "cartoon character");
233
234 o.add("FRED", "flintstone", null, null);
235 o.add("BARNEY", "rubble", null, null);
236
237 interceptLogging();
238
239 o.add("WILMA", "flintstone", null, null);
240
241 assertLoggedMessage("Cartoon character 'flintstone' duplicates previous value (at unknown location) and is being ignored.");
242
243 List l = o.getOrderedObjects();
244
245 assertListsEqual(new Object []
246 { "FRED", "BARNEY" }, l);
247 }
248
249 public void testPreStar() throws Exception
250 {
251 Orderer o = new Orderer(getErrorHandler(), "cartoon character");
252
253 o.add("FRED", "fred", "*", null);
254 o.add("BARNEY", "barney", "betty", null);
255 o.add("WILMA", "wilma", "betty", null);
256 o.add("BETTY", "betty", null, null);
257
258 replayControls();
259
260 List l = o.getOrderedObjects();
261
262 assertListsEqual(new Object []
263 { "BETTY", "BARNEY", "WILMA", "FRED" }, l);
264
265 verifyControls();
266 }
267
268 public void testPreStartDupe() throws Exception
269 {
270 Orderer o = new Orderer(new DefaultErrorHandler(), "cartoon character");
271
272 o.add("FRED", "fred", "*", null);
273 o.add("BARNEY", "barney", "*", null);
274 o.add("WILMA", "wilma", "betty", null);
275 o.add("BETTY", "betty", null, null);
276
277 interceptLogging();
278
279 List l = o.getOrderedObjects();
280
281 assertListsEqual(new Object []
282 { "BARNEY", "BETTY", "WILMA", "FRED" }, l);
283
284 assertLoggedMessage("Cartoon character 'barney' has been ordered "
285 + "last, conflicting with 'fred' (at unknown location).");
286 }
287
288 public void testPostStar() throws Exception
289 {
290 Orderer o = new Orderer(getErrorHandler(), "cartoon character");
291
292 o.add("FRED", "fred", null, "wilma");
293 o.add("BARNEY", "barney", null, "*");
294 o.add("WILMA", "wilma", null, "betty");
295 o.add("BETTY", "betty", null, null);
296
297 replayControls();
298
299 List l = o.getOrderedObjects();
300
301 assertListsEqual(new Object []
302 { "BARNEY", "FRED", "WILMA", "BETTY" }, l);
303
304 verifyControls();
305 }
306
307 public void testPostStarDupe() throws Exception
308 {
309 Orderer o = new Orderer(new DefaultErrorHandler(), "cartoon character");
310
311 o.add("FRED", "fred", null, "wilma");
312 o.add("BARNEY", "barney", null, "*");
313 o.add("WILMA", "wilma", null, "*");
314 o.add("BETTY", "betty", null, null);
315
316 interceptLogging();
317
318 List l = o.getOrderedObjects();
319
320 assertListsEqual(new Object []
321 { "BARNEY", "FRED", "WILMA", "BETTY" }, l);
322
323 assertLoggedMessage("Cartoon character 'wilma' has been ordered "
324 + "first, conflicting with 'barney' (at unknown location).");
325 }
326
327 public void testNoObjects() throws Exception
328 {
329 Orderer o = new Orderer(new DefaultErrorHandler(), "cartoon character");
330
331 List l = o.getOrderedObjects();
332
333 assertEquals(0, l.size());
334 }
335
336 public void testException() throws Exception
337 {
338 String msg = OrdererMessages.exception("cartoon character", new NullPointerException (
339 "Unknown character exception"));
340 assertEquals(
341 "Improper message returned from exception orderer",
342 "Unable to order cartoon characters: Unknown character exception",
343 msg);
344 }
345 } |
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