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   1 /*
   2  * Copyright (C) 2016, EfficiOS Inc., Alexandre Montplaisir <alexmonthy@efficios.com>
   3  *
   4  * This program is free software; you can redistribute it and/or modify
   5  * it under the terms of the GNU General Public License as published by
   6  * the Free Software Foundation; either version 2 of the License, or
   7  * (at your option) any later version.
   8  *
   9  * This program is distributed in the hope that it will be useful,
  10  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  11  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  12  * GNU General Public License for more details.
  13  *
  14  * You should have received a copy of the GNU General Public License along
  15  * with this program; if not, write to the Free Software Foundation, Inc.,
  16  * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
  17  */
  18
  19 package org.lttng.ust.agent.integration.context;
  20
  21 import static org.junit.Assert.assertFalse;
  22 import static org.junit.Assert.assertNotNull;
  23 import static org.junit.Assert.assertTrue;
  24 import static org.junit.Assert.fail;
  25
  26 import java.io.IOException;
  27 import java.util.List;
  28
  29 import org.junit.After;
  30 import org.junit.Before;
  31 import org.junit.Test;
  32 import org.junit.runner.RunWith;
  33 import org.lttng.tools.ILttngSession;
  34 import org.lttng.tools.ILttngSession.Domain;
  35 import org.lttng.ust.agent.ILttngHandler;
  36 import org.lttng.ust.agent.context.ContextInfoManager;
  37 import org.lttng.ust.agent.utils.TestPrintRunner;
  38
  39 /**
  40  * Base abstract class to implement all sorts of integration tests verifying the
  41  * presence of enabled application contexts in resulting traces.
  42  */
  43 @RunWith(TestPrintRunner.class)
  44 public abstract class AppContextITBase {
  45
  46     protected static final String EVENT_NAME = "EventName";
  47
  48     protected static final String RETRIEVER_NAME_1 = "Retriever1";
  49     protected static final String RETRIEVER_NAME_2 = "some.retriever_2";
  50
  51     private static final String CONTEXT_NAME = ContextInfoRetrieverStubs.CONTEXT_NAME;
  52
  53     private ContextInfoManager cim;
  54     private ILttngSession session;
  55
  56     /* Field defined by the sub-class */
  57     protected ILttngHandler logHandler;
  58
  59     protected abstract Domain getDomain();
  60
  61     protected abstract void sendEventsToLoggers();
  62
  63     /**
  64      * Base test setup
  65      */
  66     @Before
  67     public void testSetup() {
  68         try {
  69             cim = ContextInfoManager.getInstance();
  70         } catch (SecurityException | IOException e) {
  71             /* The native library is not available! */
  72             fail(e.getMessage());
  73         }
  74         session = ILttngSession.createSession(null, getDomain());
  75     }
  76
  77     /**
  78      * Base test teardown
  79      */
  80     @After
  81     public void testTeardown() {
  82         session.close();
  83
  84         logHandler.close();
  85         logHandler = null;
  86
  87         /* In case some tests fail or forget to unregister their retrievers */
  88         cim.unregisterContextInfoRetriever(RETRIEVER_NAME_1);
  89         cim.unregisterContextInfoRetriever(RETRIEVER_NAME_2);
  90     }
  91
  92     // ------------------------------------------------------------------------
  93     // Context enabled/disabled tests
  94     // ------------------------------------------------------------------------
  95
  96     /**
  97      * Utility method to check that a context is present in all events of a
  98      * trace output.
  99      */
 100     private static void testContextPresentInTrace(List<String> traceOutput, String retrieverName, String contextName, String contextValue) {
 101         String traceRetrieverName = convertToNameInTrace(retrieverName);
 102         String traceContextName = convertToNameInTrace(contextName);
 103
 104         String fullString = "_app_" + traceRetrieverName + "_" + traceContextName + " = " + contextValue;
 105         traceOutput.forEach(line -> assertTrue(line.contains(fullString)));
 106     }
 107
 108     /**
 109      * Utility method to check that a context is *absent* from all events of a
 110      * trace output
 111      */
 112     private static void testContextNotPresentInTrace(List<String> traceOutput, String retrieverName, String contextName) {
 113         String traceRetrieverName = convertToNameInTrace(retrieverName);
 114         String traceContextName = convertToNameInTrace(contextName);
 115
 116         String fullString = "_app_" + traceRetrieverName + "_" + traceContextName;
 117         traceOutput.forEach(line -> assertFalse(line.contains(fullString)));
 118     }
 119
 120     /**
 121      * LTTng accepts periods in context names, but ends up printing them as
 122      * underscores in the trace, so the metadata grammar remains valid.
 123      */
 124     private static String convertToNameInTrace(String name) {
 125         return name.replace('.', '_');
 126     }
 127
 128     /**
 129      * Test that if no retrievers are declared, no context info is passed at
 130      * all.
 131      */
 132     @Test
 133     public void testNoContexts() {
 134         assertTrue(session.enableAllEvents());
 135         assertTrue(session.start());
 136         sendEventsToLoggers();
 137         assertTrue(session.stop());
 138
 139         List<String> output = session.view();
 140         assertNotNull(output);
 141         assertFalse(output.isEmpty());
 142
 143         /* Test that there is no "_app" contexts in the output */
 144         output.forEach(line -> assertFalse(line.contains("_app")));
 145     }
 146
 147     /**
 148      * Test that if a retriever is registered and provides a context, but this
 149      * context is not enabled in the tracing session, that it is not present in
 150      * the trace.
 151      */
 152     @Test
 153     public void testContextAvailableButNotEnabled() {
 154         assertTrue(cim.registerContextInfoRetriever(RETRIEVER_NAME_1, ContextInfoRetrieverStubs.STRING_RETRIEVER));
 155
 156         assertTrue(session.enableAllEvents());
 157         assertTrue(session.start());
 158         sendEventsToLoggers();
 159         assertTrue(session.stop());
 160
 161         List<String> output = session.view();
 162         assertNotNull(output);
 163         assertFalse(output.isEmpty());
 164
 165         /* Test that there is no "_app" contexts in the output */
 166         output.forEach(line -> assertFalse(line.contains("_app")));
 167
 168         assertTrue(cim.unregisterContextInfoRetriever(RETRIEVER_NAME_1));
 169     }
 170
 171     /**
 172      * Test that if a context is enabled, but no retriever provides it, that the
 173      * retriever/context names are still mentioned in the event but no value is
 174      * provided.
 175      */
 176     @Test
 177     public void testContextNotAvailableButEnabled() {
 178         assertTrue(session.enableAllEvents());
 179         assertTrue(session.enableAppContext(RETRIEVER_NAME_1, CONTEXT_NAME));
 180
 181         assertTrue(session.start());
 182         sendEventsToLoggers();
 183         assertTrue(session.stop());
 184
 185         List<String> output = session.view();
 186         assertNotNull(output);
 187         assertFalse(output.isEmpty());
 188
 189         /* Test that context name is there but value is not */
 190         testContextPresentInTrace(output, RETRIEVER_NAME_1, CONTEXT_NAME, "{ none = { } } }");
 191     }
 192
 193     /**
 194      * Test that if a context is enabled and provided by a retriever that it is
 195      * correctly present in the tracing session.
 196      */
 197     @Test
 198     public void testContextAvailableAndEnabled() {
 199         assertTrue(cim.registerContextInfoRetriever(RETRIEVER_NAME_1, ContextInfoRetrieverStubs.STRING_RETRIEVER));
 200
 201         assertTrue(session.enableAllEvents());
 202         assertTrue(session.enableAppContext(RETRIEVER_NAME_1, CONTEXT_NAME));
 203
 204         assertTrue(session.start());
 205         sendEventsToLoggers();
 206         assertTrue(session.stop());
 207
 208         List<String> output = session.view();
 209         assertNotNull(output);
 210         assertFalse(output.isEmpty());
 211
 212         /* Test that context name + value are present */
 213         testContextPresentInTrace(output, RETRIEVER_NAME_1, CONTEXT_NAME,
 214                 "{ string = \"" + ContextInfoRetrieverStubs.STRING_VALUE + "\" }");
 215
 216         assertTrue(cim.unregisterContextInfoRetriever(RETRIEVER_NAME_1));
 217     }
 218
 219     /**
 220      * Test that one context is available by a retriever, but another is is
 221      * enabled in the session. Only the latter should be mentioned in events,
 222      * with no value.
 223      */
 224     @Test
 225     public void testContextsOneAvailableOtherEnabled() {
 226         assertTrue(cim.registerContextInfoRetriever(RETRIEVER_NAME_1, ContextInfoRetrieverStubs.STRING_RETRIEVER));
 227
 228         assertTrue(session.enableAllEvents());
 229         assertTrue(session.enableAppContext(RETRIEVER_NAME_2, CONTEXT_NAME));
 230
 231         assertTrue(session.start());
 232         sendEventsToLoggers();
 233         assertTrue(session.stop());
 234
 235         List<String> output = session.view();
 236         assertNotNull(output);
 237         assertFalse(output.isEmpty());
 238
 239         /* Test that only retriever-name-2 is present, with no value */
 240         testContextNotPresentInTrace(output, RETRIEVER_NAME_1, CONTEXT_NAME);
 241         testContextPresentInTrace(output, RETRIEVER_NAME_2, CONTEXT_NAME, "{ none = { } } }");
 242
 243         assertTrue(cim.unregisterContextInfoRetriever(RETRIEVER_NAME_1));
 244     }
 245
 246     /**
 247      * Test with two contexts provided in the application, but only one of them
 248      * is enabled in the session. Only that one should be present in the trace,
 249      * name and value.
 250      */
 251     @Test
 252     public void testContextsTwoAvailableOneEnabled() {
 253         assertTrue(cim.registerContextInfoRetriever(RETRIEVER_NAME_1, ContextInfoRetrieverStubs.STRING_RETRIEVER));
 254         assertTrue(cim.registerContextInfoRetriever(RETRIEVER_NAME_2, ContextInfoRetrieverStubs.INTEGER_RETRIEVER));
 255
 256         assertTrue(session.enableAllEvents());
 257         assertTrue(session.enableAppContext(RETRIEVER_NAME_1, CONTEXT_NAME));
 258
 259         assertTrue(session.start());
 260         sendEventsToLoggers();
 261         assertTrue(session.stop());
 262
 263         List<String> output = session.view();
 264         assertNotNull(output);
 265         assertFalse(output.isEmpty());
 266
 267         /* Test that only retriever-name-1 is present, name + value */
 268         testContextPresentInTrace(output, RETRIEVER_NAME_1, CONTEXT_NAME,
 269                 "{ string = \"" + ContextInfoRetrieverStubs.STRING_VALUE + "\" }");
 270         testContextNotPresentInTrace(output, RETRIEVER_NAME_2, CONTEXT_NAME);
 271
 272         assertTrue(cim.unregisterContextInfoRetriever(RETRIEVER_NAME_1));
 273         assertTrue(cim.unregisterContextInfoRetriever(RETRIEVER_NAME_2));
 274     }
 275
 276     /**
 277      * Test with two contexts enabled in the session but only one of them is
 278      * provided by the application. Both should be mentioned in the trace, but
 279      * only the provided one will have a value.
 280      */
 281     @Test
 282     public void testContextsOneAvailableTwoEnabled() {
 283         assertTrue(cim.registerContextInfoRetriever(RETRIEVER_NAME_1, ContextInfoRetrieverStubs.STRING_RETRIEVER));
 284
 285         assertTrue(session.enableAllEvents());
 286         assertTrue(session.enableAppContext(RETRIEVER_NAME_1, CONTEXT_NAME));
 287         assertTrue(session.enableAppContext(RETRIEVER_NAME_2, CONTEXT_NAME));
 288
 289         assertTrue(session.start());
 290         sendEventsToLoggers();
 291         assertTrue(session.stop());
 292
 293         List<String> output = session.view();
 294         assertNotNull(output);
 295         assertFalse(output.isEmpty());
 296
 297         /* Test that both contexts are present, but only retriever-1's has a value */
 298         testContextPresentInTrace(output, RETRIEVER_NAME_1, CONTEXT_NAME,
 299                 "{ string = \"" + ContextInfoRetrieverStubs.STRING_VALUE + "\" }");
 300         testContextPresentInTrace(output, RETRIEVER_NAME_2, CONTEXT_NAME, "{ none = { } } }");
 301
 302         assertTrue(cim.unregisterContextInfoRetriever(RETRIEVER_NAME_1));
 303     }
 304
 305     // ------------------------------------------------------------------------
 306     // Context types tests
 307     // ------------------------------------------------------------------------
 308
 309     /**
 310      * Utility method to enable all events, add the one context we are looking
 311      * for, take a trace, and return the trace output.
 312      */
 313     private List<String> enableContextAndTrace() {
 314         assertTrue(session.enableAllEvents());
 315         assertTrue(session.enableAppContext(RETRIEVER_NAME_1, CONTEXT_NAME));
 316         assertTrue(session.start());
 317         sendEventsToLoggers();
 318         assertTrue(session.stop());
 319
 320         List<String> output = session.view();
 321         assertNotNull(output);
 322         assertFalse(output.isEmpty());
 323
 324         return output;
 325     }
 326
 327     /**
 328      * Test a "null" context value.
 329      */
 330     @Test
 331     public void testContextValueNull() {
 332         assertTrue(cim.registerContextInfoRetriever(RETRIEVER_NAME_1, ContextInfoRetrieverStubs.NULL_RETRIEVER));
 333
 334         List<String> output = enableContextAndTrace();
 335         testContextPresentInTrace(output, RETRIEVER_NAME_1, CONTEXT_NAME, "{ none = { } } }");
 336
 337         assertTrue(cim.unregisterContextInfoRetriever(RETRIEVER_NAME_1));
 338     }
 339
 340     /**
 341      * Test an integer (int32) context value.
 342      */
 343     @Test
 344     public void testContextValueInteger() {
 345         assertTrue(cim.registerContextInfoRetriever(RETRIEVER_NAME_1, ContextInfoRetrieverStubs.INTEGER_RETRIEVER));
 346
 347         List<String> output = enableContextAndTrace();
 348         testContextPresentInTrace(output, RETRIEVER_NAME_1, CONTEXT_NAME,
 349                 "{ int32 = " + ContextInfoRetrieverStubs.INTEGER_VALUE + " } }");
 350
 351         assertTrue(cim.unregisterContextInfoRetriever(RETRIEVER_NAME_1));
 352     }
 353
 354     /**
 355      * Test a long (int64) context value.
 356      */
 357     @Test
 358     public void testContextValueLong() {
 359         assertTrue(cim.registerContextInfoRetriever(RETRIEVER_NAME_1, ContextInfoRetrieverStubs.LONG_RETRIEVER));
 360
 361         List<String> output = enableContextAndTrace();
 362         testContextPresentInTrace(output, RETRIEVER_NAME_1, CONTEXT_NAME,
 363                 "{ int64 = " + ContextInfoRetrieverStubs.LONG_VALUE + " } }");
 364
 365         assertTrue(cim.unregisterContextInfoRetriever(RETRIEVER_NAME_1));
 366     }
 367
 368     /**
 369      * Test a double context value.
 370      */
 371     @Test
 372     public void testContextValueDouble() {
 373         assertTrue(cim.registerContextInfoRetriever(RETRIEVER_NAME_1, ContextInfoRetrieverStubs.DOUBLE_RETRIEVER));
 374
 375         List<String> output = enableContextAndTrace();
 376         testContextPresentInTrace(output, RETRIEVER_NAME_1, CONTEXT_NAME,
 377                 "{ double = " + ContextInfoRetrieverStubs.DOUBLE_VALUE + " } }");
 378
 379         assertTrue(cim.unregisterContextInfoRetriever(RETRIEVER_NAME_1));
 380     }
 381
 382     /**
 383      * Test a character context value (should get converted to a string).
 384      */
 385     @Test
 386     public void testContextValueCharacter() {
 387         assertTrue(cim.registerContextInfoRetriever(RETRIEVER_NAME_1, ContextInfoRetrieverStubs.CHARACTER_RETRIEVER));
 388
 389         List<String> output = enableContextAndTrace();
 390         testContextPresentInTrace(output, RETRIEVER_NAME_1, CONTEXT_NAME,
 391                 "{ string = \"" + ContextInfoRetrieverStubs.CHARACTER_VALUE + "\" } }");
 392
 393         assertTrue(cim.unregisterContextInfoRetriever(RETRIEVER_NAME_1));
 394     }
 395
 396     /**
 397      * Test a float context value.
 398      */
 399     @Test
 400     public void testContextValueFloat() {
 401         assertTrue(cim.registerContextInfoRetriever(RETRIEVER_NAME_1, ContextInfoRetrieverStubs.FLOAT_RETRIEVER));
 402
 403         List<String> output = enableContextAndTrace();
 404         testContextPresentInTrace(output, RETRIEVER_NAME_1, CONTEXT_NAME,
 405                 "{ float = " + ContextInfoRetrieverStubs.FLOAT_VALUE + " } }");
 406
 407         assertTrue(cim.unregisterContextInfoRetriever(RETRIEVER_NAME_1));
 408     }
 409
 410     /**
 411      * Test a byte (int8) context value.
 412      */
 413     @Test
 414     public void testContextValueByte() {
 415         assertTrue(cim.registerContextInfoRetriever(RETRIEVER_NAME_1, ContextInfoRetrieverStubs.BYTE_RETRIEVER));
 416
 417         List<String> output = enableContextAndTrace();
 418         testContextPresentInTrace(output, RETRIEVER_NAME_1, CONTEXT_NAME,
 419                 "{ int8 = " + ContextInfoRetrieverStubs.BYTE_VALUE + " } }");
 420
 421         assertTrue(cim.unregisterContextInfoRetriever(RETRIEVER_NAME_1));
 422     }
 423
 424     /**
 425      * Test a short (int16) context value.
 426      */
 427     @Test
 428     public void testContextValueShort() {
 429         assertTrue(cim.registerContextInfoRetriever(RETRIEVER_NAME_1, ContextInfoRetrieverStubs.SHORT_RETRIEVER));
 430
 431         List<String> output = enableContextAndTrace();
 432         testContextPresentInTrace(output, RETRIEVER_NAME_1, CONTEXT_NAME,
 433                 "{ int16 = " + ContextInfoRetrieverStubs.SHORT_VALUE + " } }");
 434
 435         assertTrue(cim.unregisterContextInfoRetriever(RETRIEVER_NAME_1));
 436     }
 437
 438     /**
 439      * Test a "true" boolean context value (gets converted to a int8 of value 1).
 440      */
 441     @Test
 442     public void testContextValueBooleanTrue() {
 443         assertTrue(cim.registerContextInfoRetriever(RETRIEVER_NAME_1, ContextInfoRetrieverStubs.BOOLEAN_TRUE_RETRIEVER));
 444
 445         List<String> output = enableContextAndTrace();
 446         testContextPresentInTrace(output, RETRIEVER_NAME_1, CONTEXT_NAME, "{ int8 = 1 } }");
 447
 448         assertTrue(cim.unregisterContextInfoRetriever(RETRIEVER_NAME_1));
 449     }
 450
 451     /**
 452      * Test a "false" boolean context value (gets converted to a int8 of value 0).
 453      */
 454     @Test
 455     public void testContextValueBooleanFalse() {
 456         assertTrue(cim.registerContextInfoRetriever(RETRIEVER_NAME_1, ContextInfoRetrieverStubs.BOOLEAN_FALSE_RETRIEVER));
 457
 458         List<String> output = enableContextAndTrace();
 459         testContextPresentInTrace(output, RETRIEVER_NAME_1, CONTEXT_NAME, "{ int8 = 0 } }");
 460
 461         assertTrue(cim.unregisterContextInfoRetriever(RETRIEVER_NAME_1));
 462     }
 463
 464     /**
 465      * Test a string context value.
 466      */
 467     @Test
 468     public void testContextValueString() {
 469         assertTrue(cim.registerContextInfoRetriever(RETRIEVER_NAME_1, ContextInfoRetrieverStubs.STRING_RETRIEVER));
 470
 471         List<String> output = enableContextAndTrace();
 472         testContextPresentInTrace(output, RETRIEVER_NAME_1, CONTEXT_NAME,
 473                 "{ string = \"" + ContextInfoRetrieverStubs.STRING_VALUE + "\" } }");
 474
 475         assertTrue(cim.unregisterContextInfoRetriever(RETRIEVER_NAME_1));
 476     }
 477
 478     /**
 479      * Test a Object context value (should be converted to a String via .toString()).
 480      */
 481     @Test
 482     public void testContextValueObject() {
 483         assertTrue(cim.registerContextInfoRetriever(RETRIEVER_NAME_1, ContextInfoRetrieverStubs.OBJECT_RETRIEVER));
 484
 485         List<String> output = enableContextAndTrace();
 486         testContextPresentInTrace(output, RETRIEVER_NAME_1, CONTEXT_NAME,
 487                 "{ string = \"" + ContextInfoRetrieverStubs.OBJECT_VALUE.toString() + "\" } }");
 488
 489         assertTrue(cim.unregisterContextInfoRetriever(RETRIEVER_NAME_1));
 490     }
 491
 492     // ------------------------------------------------------------------------
 493     // Tests related to filtering
 494     // ------------------------------------------------------------------------
 495
 496     /**
 497      * Test with a filter expression using a context, but not having the actual
 498      * context enabled.
 499      *
 500      * The JNI should still send the context so UST can use it for filtering,
 501      * but it should not be present in the resulting trace.
 502      */
 503     @Test
 504     public void testContextFilterExpressionNotEnabled() {
 505         assertTrue(cim.registerContextInfoRetriever(RETRIEVER_NAME_1, ContextInfoRetrieverStubs.STRING_RETRIEVER));
 506
 507         assertTrue(session.enableEvent(EVENT_NAME, null, false,
 508                 "$app." + RETRIEVER_NAME_1 + ':' + CONTEXT_NAME + "==\"" + ContextInfoRetrieverStubs.STRING_VALUE + '\"'));
 509
 510         assertTrue(session.start());
 511         sendEventsToLoggers();
 512         assertTrue(session.stop());
 513
 514         List<String> output = session.view();
 515         assertNotNull(output);
 516         assertFalse(output.isEmpty());
 517
 518         testContextNotPresentInTrace(output, RETRIEVER_NAME_1, CONTEXT_NAME);
 519
 520         assertTrue(cim.unregisterContextInfoRetriever(RETRIEVER_NAME_1));
 521     }
 522
 523     /**
 524      * Test with a filter expression and an enabled context. The filter however
 525      * should *exclude* the events, so no events should be present in the
 526      * resulting trace.
 527      */
 528     @Test
 529     public void testContextFilterExpressionEnabledNotMatching() {
 530         assertTrue(cim.registerContextInfoRetriever(RETRIEVER_NAME_1, ContextInfoRetrieverStubs.STRING_RETRIEVER));
 531
 532         assertTrue(session.enableEvent(EVENT_NAME, null, false,
 533                 "$app." + RETRIEVER_NAME_1 + ':' + CONTEXT_NAME + "!=\"" + ContextInfoRetrieverStubs.STRING_VALUE + '\"'));
 534
 535         assertTrue(session.enableAppContext(RETRIEVER_NAME_1, CONTEXT_NAME));
 536         assertTrue(session.start());
 537         sendEventsToLoggers();
 538         assertTrue(session.stop());
 539
 540         List<String> output = session.view();
 541         assertNotNull(output);
 542         assertTrue(output.isEmpty());
 543
 544         assertTrue(cim.unregisterContextInfoRetriever(RETRIEVER_NAME_1));
 545     }
 546
 547     /**
 548      * Test with a filter expression and an enabled context. The filter however
 549      * should match the events, so events with the context info should be
 550      * present in the resulting trace.
 551      */
 552     @Test
 553     public void testContextFilterExpressionEnabledMatching() {
 554         assertTrue(cim.registerContextInfoRetriever(RETRIEVER_NAME_1, ContextInfoRetrieverStubs.STRING_RETRIEVER));
 555
 556         assertTrue(session.enableEvent(EVENT_NAME, null, false,
 557                 "$app." + RETRIEVER_NAME_1 + ':' + CONTEXT_NAME + "==\"" + ContextInfoRetrieverStubs.STRING_VALUE + '\"'));
 558
 559         assertTrue(session.enableAppContext(RETRIEVER_NAME_1, CONTEXT_NAME));
 560         assertTrue(session.start());
 561         sendEventsToLoggers();
 562         assertTrue(session.stop());
 563
 564         List<String> output = session.view();
 565         assertNotNull(output);
 566         assertFalse(output.isEmpty());
 567
 568         testContextPresentInTrace(output, RETRIEVER_NAME_1, CONTEXT_NAME,
 569                 "{ string = \"" + ContextInfoRetrieverStubs.STRING_VALUE + "\" } }");
 570
 571         assertTrue(cim.unregisterContextInfoRetriever(RETRIEVER_NAME_1));
 572     }
 573 }