-
Notifications
You must be signed in to change notification settings - Fork 215
/
DittoCachingSignalEnrichmentFacadeTest.java
510 lines (457 loc) · 27.5 KB
/
DittoCachingSignalEnrichmentFacadeTest.java
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
474
475
476
477
478
479
480
481
482
483
484
485
486
487
488
489
490
491
492
493
494
495
496
497
498
499
500
501
502
503
504
505
506
507
508
509
510
/*
* Copyright (c) 2019 Contributors to the Eclipse Foundation
*
* See the NOTICE file(s) distributed with this work for additional
* information regarding copyright ownership.
*
* This program and the accompanying materials are made available under the
* terms of the Eclipse Public License 2.0 which is available at
* http://www.eclipse.org/legal/epl-2.0
*
* SPDX-License-Identifier: EPL-2.0
*/
package org.eclipse.ditto.internal.models.signalenrichment;
import java.time.Duration;
import java.util.concurrent.CompletionStage;
import org.assertj.core.api.JUnitSoftAssertions;
import org.eclipse.ditto.base.model.auth.AuthorizationContext;
import org.eclipse.ditto.base.model.auth.AuthorizationSubject;
import org.eclipse.ditto.base.model.auth.DittoAuthorizationContextType;
import org.eclipse.ditto.base.model.entity.metadata.Metadata;
import org.eclipse.ditto.base.model.entity.metadata.MetadataModelFactory;
import org.eclipse.ditto.base.model.headers.DittoHeaders;
import org.eclipse.ditto.base.model.json.FieldType;
import org.eclipse.ditto.base.model.signals.DittoTestSystem;
import org.eclipse.ditto.internal.utils.cache.config.CacheConfig;
import org.eclipse.ditto.internal.utils.cache.config.DefaultCacheConfig;
import org.eclipse.ditto.json.JsonFactory;
import org.eclipse.ditto.json.JsonFieldSelector;
import org.eclipse.ditto.json.JsonObject;
import org.eclipse.ditto.json.JsonPointer;
import org.eclipse.ditto.json.JsonValue;
import org.eclipse.ditto.things.model.Thing;
import org.eclipse.ditto.things.model.ThingId;
import org.eclipse.ditto.things.model.ThingsModelFactory;
import org.eclipse.ditto.things.model.signals.commands.query.RetrieveThing;
import org.eclipse.ditto.things.model.signals.commands.query.RetrieveThingResponse;
import org.eclipse.ditto.things.model.signals.events.AttributeDeleted;
import org.eclipse.ditto.things.model.signals.events.ThingMerged;
import org.junit.Rule;
import org.junit.Test;
import com.typesafe.config.ConfigFactory;
import akka.actor.ActorSelection;
import akka.testkit.javadsl.TestKit;
/**
* Unit tests for {@link DittoCachingSignalEnrichmentFacade}.
*/
public final class DittoCachingSignalEnrichmentFacadeTest extends AbstractSignalEnrichmentFacadeTest {
private static final String CACHE_CONFIG_KEY = "my-cache";
private static final String CACHE_CONFIG = CACHE_CONFIG_KEY + """
{
maximum-size = 10
expire-after-create = 2m
}
""";
private static final String ISSUER_PREFIX = "test:";
private static final JsonObject THING_RESPONSE_JSON = JsonObject.of("""
{
"_revision": 3,
"policyId": "policy:id",
"attributes": {"x": 5},
"features": {"y": {"properties": {"z": true}}},
"_metadata": {"attributes": {"x": {"type": "x attribute"}}}
}""");
private static final JsonObject EXPECTED_THING_JSON = JsonObject.of("""
{
"policyId": "policy:id",
"attributes": {"x": 5},
"features": {"y": {"properties": {"z": true}}},
"_metadata": {"attributes": {"x": {"type": "x attribute"}}}
}""");
@Rule
public final JUnitSoftAssertions softly = new JUnitSoftAssertions();
@Override
protected SignalEnrichmentFacade createSignalEnrichmentFacadeUnderTest(final TestKit kit, final Duration duration) {
final CacheConfig cacheConfig =
DefaultCacheConfig.of(ConfigFactory.parseString(CACHE_CONFIG), CACHE_CONFIG_KEY);
final ActorSelection commandHandler = ActorSelection.apply(kit.getRef(), "");
final ByRoundTripSignalEnrichmentFacade cacheLoaderFacade =
ByRoundTripSignalEnrichmentFacade.of(commandHandler, Duration.ofSeconds(10L));
return DittoCachingSignalEnrichmentFacade.newInstance(
cacheLoaderFacade,
cacheConfig,
kit.getSystem().getDispatcher(),
"test");
}
@Override
protected JsonObject getThingResponseThingJson() {
return THING_RESPONSE_JSON;
}
@Override
protected JsonObject getExpectedThingJson() {
return EXPECTED_THING_JSON;
}
@Override
protected JsonFieldSelector actualSelectedFields(final JsonFieldSelector selector) {
return JsonFactory.newFieldSelectorBuilder()
.addPointers(selector)
.addFieldDefinition(Thing.JsonFields.REVISION) // additionally always select the revision
.build();
}
@Test
public void alreadyLoadedCacheEntryIsReused() {
DittoTestSystem.run(this, kit -> {
// GIVEN: SignalEnrichmentFacade.retrievePartialThing()
final SignalEnrichmentFacade underTest =
createSignalEnrichmentFacadeUnderTest(kit, Duration.ofSeconds(10L));
final ThingId thingId = ThingId.generateRandom();
final String userId = ISSUER_PREFIX + "user";
final DittoHeaders headers = DittoHeaders.newBuilder()
.authorizationContext(AuthorizationContext.newInstance(DittoAuthorizationContextType.UNSPECIFIED,
AuthorizationSubject.newInstance(userId)))
.randomCorrelationId()
.build();
final CompletionStage<JsonObject> askResult =
underTest.retrievePartialThing(thingId, SELECTOR, headers, THING_EVENT);
// WHEN: Command handler receives expected RetrieveThing and responds with RetrieveThingResponse
final RetrieveThing retrieveThing = kit.expectMsgClass(RetrieveThing.class);
softly.assertThat(retrieveThing.getDittoHeaders().getAuthorizationContext().getAuthorizationSubjectIds())
.contains(userId);
softly.assertThat(retrieveThing.getSelectedFields()).contains(actualSelectedFields(SELECTOR));
// WHEN: response is handled so that it is also added to the cache
kit.reply(RetrieveThingResponse.of(thingId, getThingResponseThingJson(), headers));
askResult.toCompletableFuture().join();
softly.assertThat(askResult).isCompletedWithValue(getExpectedThingJson());
// WHEN: same thing is asked again with same selector for an event with one revision ahead
final CompletionStage<JsonObject> askResultCached =
underTest.retrievePartialThing(thingId, SELECTOR, headers,
THING_EVENT.setRevision(THING_EVENT.getRevision() + 1));
// THEN: no cache lookup should be done
kit.expectNoMessage(Duration.ofSeconds(1));
askResultCached.toCompletableFuture().join();
softly.assertThat(askResultCached).isCompletedWithValue(getExpectedThingJson());
});
}
@Test
public void alreadyLoadedCacheEntryIsReusedForMergedEvent() {
DittoTestSystem.run(this, kit -> {
// GIVEN: SignalEnrichmentFacade.retrievePartialThing()
final SignalEnrichmentFacade underTest =
createSignalEnrichmentFacadeUnderTest(kit, Duration.ofSeconds(10L));
final ThingId thingId = ThingId.generateRandom();
final String userId = ISSUER_PREFIX + "user";
final DittoHeaders headers = DittoHeaders.newBuilder()
.authorizationContext(AuthorizationContext.newInstance(DittoAuthorizationContextType.UNSPECIFIED,
AuthorizationSubject.newInstance(userId)))
.randomCorrelationId()
.build();
final CompletionStage<JsonObject> askResult =
underTest.retrievePartialThing(thingId, SELECTOR, headers, THING_EVENT);
// WHEN: Command handler receives expected RetrieveThing and responds with RetrieveThingResponse
final RetrieveThing retrieveThing = kit.expectMsgClass(RetrieveThing.class);
softly.assertThat(retrieveThing.getDittoHeaders().getAuthorizationContext().getAuthorizationSubjectIds())
.contains(userId);
softly.assertThat(retrieveThing.getSelectedFields()).contains(actualSelectedFields(SELECTOR));
// WHEN: response is handled so that it is also added to the cache
kit.reply(RetrieveThingResponse.of(thingId, getThingResponseThingJson(), headers));
askResult.toCompletableFuture().join();
softly.assertThat(askResult).isCompletedWithValue(getExpectedThingJson());
// WHEN: same thing is asked again with same selector for an event with one revision ahead
final ThingMerged mergeAttributes = ThingMerged.of(thingId, JsonPointer.of("/attributes"),
JsonObject.newBuilder()
.set("x", 42)
.set("foo", "bar")
.build(),
THING_EVENT.getRevision() + 1,
null,
DittoHeaders.empty(),
null
);
final CompletionStage<JsonObject> askResultCached =
underTest.retrievePartialThing(thingId, SELECTOR, headers, mergeAttributes);
// THEN: no cache lookup should be done
kit.expectNoMessage(Duration.ofSeconds(1));
askResultCached.toCompletableFuture().join();
// AND: the resulting thing JSON includes the with the merge update updated value:
final JsonObject expectedThingJson = EXPECTED_THING_JSON.toBuilder()
.set("/attributes/x", 42)
.build();
softly.assertThat(askResultCached).isCompletedWithValue(expectedThingJson);
// WHEN: then the attribute "x" is modified with a merge:
final ThingMerged mergeAttributeX = ThingMerged.of(thingId, JsonPointer.of("/attributes/x"),
JsonValue.of(1337),
mergeAttributes.getRevision() + 1,
null,
DittoHeaders.empty(),
null
);
final CompletionStage<JsonObject> askResultCached2 =
underTest.retrievePartialThing(thingId, SELECTOR, headers, mergeAttributeX);
// THEN: no cache lookup should be done
kit.expectNoMessage(Duration.ofSeconds(1));
askResultCached2.toCompletableFuture().join();
// AND: the resulting thing JSON includes the with the merge update updated value:
final JsonObject expectedThingJson2 = EXPECTED_THING_JSON.toBuilder()
.set("/attributes/x", 1337)
.build();
softly.assertThat(askResultCached2).isCompletedWithValue(expectedThingJson2);
});
}
@Test
public void alreadyLoadedCacheEntryIsReusedForMergedEventOnRootLevel() {
DittoTestSystem.run(this, kit -> {
// GIVEN: SignalEnrichmentFacade.retrievePartialThing()
final SignalEnrichmentFacade underTest =
createSignalEnrichmentFacadeUnderTest(kit, Duration.ofSeconds(10L));
final ThingId thingId = ThingId.generateRandom();
final String userId = ISSUER_PREFIX + "user";
final DittoHeaders headers = DittoHeaders.newBuilder()
.authorizationContext(AuthorizationContext.newInstance(DittoAuthorizationContextType.UNSPECIFIED,
AuthorizationSubject.newInstance(userId)))
.randomCorrelationId()
.build();
final CompletionStage<JsonObject> askResult =
underTest.retrievePartialThing(thingId, SELECTOR, headers, THING_EVENT);
// WHEN: Command handler receives expected RetrieveThing and responds with RetrieveThingResponse
final RetrieveThing retrieveThing = kit.expectMsgClass(RetrieveThing.class);
softly.assertThat(retrieveThing.getDittoHeaders().getAuthorizationContext().getAuthorizationSubjectIds())
.contains(userId);
softly.assertThat(retrieveThing.getSelectedFields()).contains(actualSelectedFields(SELECTOR));
// WHEN: response is handled so that it is also added to the cache
kit.reply(RetrieveThingResponse.of(thingId, getThingResponseThingJson(), headers));
askResult.toCompletableFuture().join();
softly.assertThat(askResult).isCompletedWithValue(getExpectedThingJson());
// WHEN: same thing is asked again with same selector for an event with one revision ahead
final ThingMerged mergeAttributes = ThingMerged.of(thingId, JsonPointer.of("/"),
JsonObject.newBuilder()
.set("attributes",
JsonObject.newBuilder()
.set("x", 42)
.set("foo", "bar")
.build())
.build(),
THING_EVENT.getRevision() + 1,
null,
DittoHeaders.empty(),
null
);
final CompletionStage<JsonObject> askResultCached =
underTest.retrievePartialThing(thingId, SELECTOR, headers, mergeAttributes);
// THEN: no cache lookup should be done
kit.expectNoMessage(Duration.ofSeconds(1));
askResultCached.toCompletableFuture().join();
});
}
@Test
public void alreadyLoadedCacheEntryIsInvalidatedForUnexpectedEventRevision() {
DittoTestSystem.run(this, kit -> {
// GIVEN: SignalEnrichmentFacade.retrievePartialThing()
final SignalEnrichmentFacade underTest =
createSignalEnrichmentFacadeUnderTest(kit, Duration.ofSeconds(10L));
final ThingId thingId = ThingId.generateRandom();
final DittoHeaders headers = DittoHeaders.newBuilder().randomCorrelationId().build();
final CompletionStage<JsonObject> askResult =
underTest.retrievePartialThing(thingId, SELECTOR, headers, THING_EVENT);
// WHEN: Command handler receives expected RetrieveThing and responds with RetrieveThingResponse
final RetrieveThing retrieveThing = kit.expectMsgClass(RetrieveThing.class);
softly.assertThat(retrieveThing.getSelectedFields()).contains(actualSelectedFields(SELECTOR));
// WHEN: response is handled so that it is also added to the cache
kit.reply(RetrieveThingResponse.of(thingId, getThingResponseThingJson(), headers));
askResult.toCompletableFuture().join();
softly.assertThat(askResult).isCompletedWithValue(getExpectedThingJson());
// WHEN: same thing is asked again with same selector with event with 2 revisions ahead
final DittoHeaders headers2 = DittoHeaders.newBuilder().randomCorrelationId().build();
final CompletionStage<JsonObject> askResultCached =
underTest.retrievePartialThing(thingId, SELECTOR, headers2,
THING_EVENT.setRevision(THING_EVENT.getRevision() + 2)); // notice +2 here
// THEN: do another cache lookup after invalidation
final RetrieveThing retrieveThing2 = kit.expectMsgClass(RetrieveThing.class);
softly.assertThat(retrieveThing2.getSelectedFields()).contains(actualSelectedFields(SELECTOR));
final Thing thing2 = ThingsModelFactory.newThing(getThingResponseThingJson());
final Thing thing2WithUpdatedRev = thing2.toBuilder()
.setRevision(thing2.getRevision().get().increment().increment())
.build();
kit.reply(RetrieveThingResponse.of(thingId, thing2WithUpdatedRev.toJson(
thing2WithUpdatedRev.getImplementedSchemaVersion(), FieldType.all()), headers2));
askResultCached.toCompletableFuture().join();
softly.assertThat(askResultCached).isCompletedWithValue(getExpectedThingJson());
});
}
@Test
public void differentAuthSubjectsLeadToCacheRetrievals() {
DittoTestSystem.run(this, kit -> {
// GIVEN: SignalEnrichmentFacade.retrievePartialThing()
final SignalEnrichmentFacade underTest =
createSignalEnrichmentFacadeUnderTest(kit, Duration.ofSeconds(10L));
final ThingId thingId = ThingId.generateRandom();
final String userId1 = ISSUER_PREFIX + "user1";
final String userId2 = ISSUER_PREFIX + "user2";
final DittoHeaders headers = DittoHeaders.newBuilder()
.authorizationContext(AuthorizationContext.newInstance(DittoAuthorizationContextType.UNSPECIFIED,
AuthorizationSubject.newInstance(userId1)))
.randomCorrelationId()
.build();
final CompletionStage<JsonObject> askResult =
underTest.retrievePartialThing(thingId, SELECTOR, headers, THING_EVENT);
// WHEN: Command handler receives expected RetrieveThing and responds with RetrieveThingResponse
final RetrieveThing retrieveThing = kit.expectMsgClass(RetrieveThing.class);
softly.assertThat(retrieveThing.getDittoHeaders().getAuthorizationContext().getAuthorizationSubjectIds())
.contains(userId1);
softly.assertThat(retrieveThing.getSelectedFields()).contains(actualSelectedFields(SELECTOR));
// WHEN: response is handled so that it is also added to the cache
kit.reply(RetrieveThingResponse.of(thingId, getThingResponseThingJson(), headers));
askResult.toCompletableFuture().join();
softly.assertThat(askResult).isCompletedWithValue(getExpectedThingJson());
// WHEN: same thing is asked again with same selector for an event with one revision ahead but other auth subjects
final DittoHeaders headers2 = headers.toBuilder()
.authorizationContext(AuthorizationContext.newInstance(DittoAuthorizationContextType.UNSPECIFIED,
AuthorizationSubject.newInstance(ISSUER_PREFIX + "user2")
))
.build();
underTest.retrievePartialThing(thingId, SELECTOR, headers2,
THING_EVENT.setRevision(THING_EVENT.getRevision() + 1));
// THEN: a cache lookup should be done containing the other auth subject header
final RetrieveThing retrieveThing2 = kit.expectMsgClass(RetrieveThing.class);
softly.assertThat(retrieveThing2.getDittoHeaders().getAuthorizationContext().getAuthorizationSubjectIds())
.contains(userId2);
softly.assertThat(retrieveThing2.getSelectedFields()).contains(actualSelectedFields(SELECTOR));
});
}
@Test
public void differentFieldSelectorsLeadToCacheRetrievals() {
DittoTestSystem.run(this, kit -> {
// GIVEN: SignalEnrichmentFacade.retrievePartialThing()
final SignalEnrichmentFacade underTest =
createSignalEnrichmentFacadeUnderTest(kit, Duration.ofSeconds(10L));
final ThingId thingId = ThingId.generateRandom();
final String userId = ISSUER_PREFIX + "user1";
final DittoHeaders headers = DittoHeaders.newBuilder()
.authorizationContext(AuthorizationContext.newInstance(DittoAuthorizationContextType.UNSPECIFIED,
AuthorizationSubject.newInstance(userId)))
.randomCorrelationId()
.build();
final CompletionStage<JsonObject> askResult =
underTest.retrievePartialThing(thingId, SELECTOR, headers, THING_EVENT);
final JsonFieldSelector selector2 = JsonFieldSelector.newInstance("attributes", "features");
// WHEN: Command handler receives expected RetrieveThing and responds with RetrieveThingResponse
final RetrieveThing retrieveThing = kit.expectMsgClass(RetrieveThing.class);
softly.assertThat(retrieveThing.getDittoHeaders().getAuthorizationContext().getAuthorizationSubjectIds())
.contains(userId);
softly.assertThat(retrieveThing.getSelectedFields()).contains(actualSelectedFields(SELECTOR));
// WHEN: response is handled so that it is also added to the cache
kit.reply(RetrieveThingResponse.of(thingId, getThingResponseThingJson(), headers));
askResult.toCompletableFuture().join();
softly.assertThat(askResult).isCompletedWithValue(getExpectedThingJson());
// WHEN: same thing is asked again with different selector for an event with one revision ahead
underTest.retrievePartialThing(thingId, selector2, headers,
THING_EVENT.setRevision(THING_EVENT.getRevision() + 1));
// THEN: a cache lookup should be done using the other selector
final RetrieveThing retrieveThing2 = kit.expectMsgClass(RetrieveThing.class);
softly.assertThat(retrieveThing2.getDittoHeaders().getAuthorizationContext().getAuthorizationSubjectIds())
.contains(userId);
softly.assertThat(retrieveThing2.getSelectedFields()).contains(actualSelectedFields(selector2));
});
}
@Test
public void metadataIsUpdatedForMergedEvent() {
DittoTestSystem.run(this, kit -> {
// GIVEN: SignalEnrichmentFacade.retrievePartialThing()
final SignalEnrichmentFacade underTest =
createSignalEnrichmentFacadeUnderTest(kit, Duration.ofSeconds(10L));
final ThingId thingId = ThingId.generateRandom();
final String userId = ISSUER_PREFIX + "user";
final DittoHeaders headers = DittoHeaders.newBuilder()
.authorizationContext(AuthorizationContext.newInstance(DittoAuthorizationContextType.UNSPECIFIED,
AuthorizationSubject.newInstance(userId)))
.randomCorrelationId()
.build();
final CompletionStage<JsonObject> askResult =
underTest.retrievePartialThing(thingId, SELECTOR, headers, THING_EVENT);
// WHEN: Command handler receives expected RetrieveThing and responds with RetrieveThingResponse
final RetrieveThing retrieveThing = kit.expectMsgClass(RetrieveThing.class);
softly.assertThat(retrieveThing.getDittoHeaders().getAuthorizationContext().getAuthorizationSubjectIds())
.contains(userId);
softly.assertThat(retrieveThing.getSelectedFields()).contains(actualSelectedFields(SELECTOR));
// WHEN: response is handled so that it is also added to the cache
kit.reply(RetrieveThingResponse.of(thingId, getThingResponseThingJson(), headers));
askResult.toCompletableFuture().join();
softly.assertThat(askResult).isCompletedWithValue(getExpectedThingJson());
// WHEN: same thing is asked again with same selector for an event with one revision ahead
final ThingMerged mergeAttribute = ThingMerged.of(thingId, JsonPointer.of("/attributes/x"),
JsonFactory.newValue(6),
THING_EVENT.getRevision() + 1,
null,
DittoHeaders.empty(),
Metadata.newMetadata(JsonObject.newBuilder()
.set("type", "x is now y attribute")
.build()
)
);
final CompletionStage<JsonObject> askResultCached =
underTest.retrievePartialThing(thingId, SELECTOR, headers, mergeAttribute);
// THEN: no cache lookup should be done
kit.expectNoMessage(Duration.ofSeconds(1));
askResultCached.toCompletableFuture().join();
// AND: the resulting thing JSON includes the with the merged metadata updated value:
final JsonObject expectedThingJson = EXPECTED_THING_JSON.toBuilder()
.set("attributes", JsonObject.newBuilder()
.set("x", 6)
.build())
.set("_metadata", JsonObject.newBuilder()
.set("attributes", JsonObject.newBuilder()
.set("x", JsonObject.newBuilder()
.set("type", "x is now y attribute")
.build())
.build())
.build())
.build();
softly.assertThat(askResultCached).isCompletedWithValue(expectedThingJson);
});
}
@Test
public void metadataIsDeletedForDeletedEvent() {
DittoTestSystem.run(this, kit -> {
// GIVEN: SignalEnrichmentFacade.retrievePartialThing()
final SignalEnrichmentFacade underTest =
createSignalEnrichmentFacadeUnderTest(kit, Duration.ofSeconds(10L));
final ThingId thingId = ThingId.generateRandom();
final String userId = ISSUER_PREFIX + "user";
final DittoHeaders headers = DittoHeaders.newBuilder()
.authorizationContext(AuthorizationContext.newInstance(DittoAuthorizationContextType.UNSPECIFIED,
AuthorizationSubject.newInstance(userId)))
.randomCorrelationId()
.build();
final CompletionStage<JsonObject> askResult =
underTest.retrievePartialThing(thingId, SELECTOR, headers, THING_EVENT);
// WHEN: Command handler receives expected RetrieveThing and responds with RetrieveThingResponse
final RetrieveThing retrieveThing = kit.expectMsgClass(RetrieveThing.class);
softly.assertThat(retrieveThing.getDittoHeaders().getAuthorizationContext().getAuthorizationSubjectIds())
.contains(userId);
softly.assertThat(retrieveThing.getSelectedFields()).contains(actualSelectedFields(SELECTOR));
// WHEN: response is handled so that it is also added to the cache
kit.reply(RetrieveThingResponse.of(thingId, getThingResponseThingJson(), headers));
askResult.toCompletableFuture().join();
softly.assertThat(askResult).isCompletedWithValue(getExpectedThingJson());
// WHEN: same thing is asked again with same selector for an event with one revision ahead
final AttributeDeleted attributeDeleted =
AttributeDeleted.of(thingId, JsonPointer.of("/x"),
THING_EVENT.getRevision() + 1,
null,
DittoHeaders.empty(),
MetadataModelFactory.nullMetadata());
final CompletionStage<JsonObject> askResultCached =
underTest.retrievePartialThing(thingId, SELECTOR, headers, attributeDeleted);
// THEN: no cache lookup should be done
kit.expectNoMessage(Duration.ofSeconds(1));
askResultCached.toCompletableFuture().join();
// AND: the resulting thing JSON includes the with the merged metadata updated value:
final JsonObject expectedThingJson = EXPECTED_THING_JSON.toBuilder()
.remove("attributes")
.set("_metadata", JsonObject.newBuilder()
.set("attributes", JsonObject.newBuilder().build())
.build())
.build();
softly.assertThat(askResultCached).isCompletedWithValue(expectedThingJson);
});
}
}