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Side by Side Diff: source/test/intltest/unifiedcachetest.cpp

Issue 1621843002: ICU 56 update step 1 (Closed) Base URL: https://chromium.googlesource.com/chromium/deps/icu.git@561
Patch Set: Created 4 years, 11 months ago
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1 /* 1 /*
2 ******************************************************************************* 2 *******************************************************************************
3 * Copyright (C) 2014, International Business Machines Corporation and * 3 * Copyright (C) 2015, International Business Machines Corporation and *
4 * others. All Rights Reserved. * 4 * others. All Rights Reserved. *
5 ******************************************************************************* 5 *******************************************************************************
6 * 6 *
7 * File UNIFIEDCACHETEST.CPP 7 * File UNIFIEDCACHETEST.CPP
8 * 8 *
9 ******************************************************************************** 9 ********************************************************************************
10 */ 10 */
11 #include "cstring.h" 11 #include "cstring.h"
12 #include "intltest.h" 12 #include "intltest.h"
13 #include "unifiedcache.h" 13 #include "unifiedcache.h"
14 #include "unicode/datefmt.h"
14 15
15 class UCTItem : public SharedObject { 16 class UCTItem : public SharedObject {
16 public: 17 public:
17 char *value; 18 char *value;
18 UCTItem(const char *x) : value(NULL) { 19 UCTItem(const char *x) : value(NULL) {
19 value = uprv_strdup(x); 20 value = uprv_strdup(x);
20 } 21 }
21 virtual ~UCTItem() { 22 virtual ~UCTItem() {
22 uprv_free(value); 23 uprv_free(value);
23 } 24 }
24 }; 25 };
25 26
26 class UCTItem2 : public SharedObject { 27 class UCTItem2 : public SharedObject {
27 }; 28 };
28 29
29 U_NAMESPACE_BEGIN 30 U_NAMESPACE_BEGIN
30 31
31 template<> U_EXPORT 32 template<> U_EXPORT
32 const UCTItem *LocaleCacheKey<UCTItem>::createObject( 33 const UCTItem *LocaleCacheKey<UCTItem>::createObject(
33 const void * /*unused*/, UErrorCode &status) const { 34 const void *context, UErrorCode &status) const {
35 const UnifiedCache *cacheContext = (const UnifiedCache *) context;
34 if (uprv_strcmp(fLoc.getName(), "zh") == 0) { 36 if (uprv_strcmp(fLoc.getName(), "zh") == 0) {
35 status = U_MISSING_RESOURCE_ERROR; 37 status = U_MISSING_RESOURCE_ERROR;
36 return NULL; 38 return NULL;
37 } 39 }
38 if (uprv_strcmp(fLoc.getLanguage(), fLoc.getName()) != 0) { 40 if (uprv_strcmp(fLoc.getLanguage(), fLoc.getName()) != 0) {
39 const UCTItem *item = NULL; 41 const UCTItem *item = NULL;
40 UnifiedCache::getByLocale(fLoc.getLanguage(), item, status); 42 if (cacheContext == NULL) {
43 UnifiedCache::getByLocale(fLoc.getLanguage(), item, status);
44 } else {
45 cacheContext->get(LocaleCacheKey<UCTItem>(fLoc.getLanguage()), item, status);
46 }
41 if (U_FAILURE(status)) { 47 if (U_FAILURE(status)) {
42 return NULL; 48 return NULL;
43 } 49 }
44 return item; 50 return item;
45 } 51 }
46 UCTItem *result = new UCTItem(fLoc.getName()); 52 UCTItem *result = new UCTItem(fLoc.getName());
47 result->addRef(); 53 result->addRef();
48 return result; 54 return result;
49 } 55 }
50 56
51 template<> U_EXPORT 57 template<> U_EXPORT
52 const UCTItem2 *LocaleCacheKey<UCTItem2>::createObject( 58 const UCTItem2 *LocaleCacheKey<UCTItem2>::createObject(
53 const void * /*unused*/, UErrorCode & /*status*/) const { 59 const void * /*unused*/, UErrorCode & /*status*/) const {
54 return NULL; 60 return NULL;
55 } 61 }
56 62
57 U_NAMESPACE_END 63 U_NAMESPACE_END
58 64
59 65
60 class UnifiedCacheTest : public IntlTest { 66 class UnifiedCacheTest : public IntlTest {
61 public: 67 public:
62 UnifiedCacheTest() { 68 UnifiedCacheTest() {
63 } 69 }
64 void runIndexedTest(int32_t index, UBool exec, const char *&name, char *par= 0); 70 void runIndexedTest(int32_t index, UBool exec, const char *&name, char *par= 0);
65 private: 71 private:
72 void TestEvictionPolicy();
73 void TestBounded();
66 void TestBasic(); 74 void TestBasic();
67 void TestError(); 75 void TestError();
68 void TestHashEquals(); 76 void TestHashEquals();
77 void TestEvictionUnderStress();
69 }; 78 };
70 79
71 void UnifiedCacheTest::runIndexedTest(int32_t index, UBool exec, const char* &na me, char* /*par*/) { 80 void UnifiedCacheTest::runIndexedTest(int32_t index, UBool exec, const char* &na me, char* /*par*/) {
72 TESTCASE_AUTO_BEGIN; 81 TESTCASE_AUTO_BEGIN;
82 TESTCASE_AUTO(TestEvictionPolicy);
83 TESTCASE_AUTO(TestBounded);
73 TESTCASE_AUTO(TestBasic); 84 TESTCASE_AUTO(TestBasic);
74 TESTCASE_AUTO(TestError); 85 TESTCASE_AUTO(TestError);
75 TESTCASE_AUTO(TestHashEquals); 86 TESTCASE_AUTO(TestHashEquals);
87 TESTCASE_AUTO(TestEvictionUnderStress);
76 TESTCASE_AUTO_END; 88 TESTCASE_AUTO_END;
77 } 89 }
78 90
91 void UnifiedCacheTest::TestEvictionUnderStress() {
92 #if !UCONFIG_NO_FORMATTING
93 int32_t localeCount;
94 const Locale *locales = DateFormat::getAvailableLocales(localeCount);
95 UErrorCode status = U_ZERO_ERROR;
96 const UnifiedCache *cache = UnifiedCache::getInstance(status);
97 int64_t evictedCountBefore = cache->autoEvictedCount();
98 for (int32_t i = 0; i < localeCount; ++i) {
99 LocalPointer<DateFormat> ptr(DateFormat::createInstanceForSkeleton("yMd" , locales[i], status));
100 }
101 int64_t evictedCountAfter = cache->autoEvictedCount();
102 if (evictedCountBefore == evictedCountAfter) {
103 dataerrln("%s:%d Items should have been evicted from cache",
104 __FILE__, __LINE__);
105 }
106 #endif /* #if !UCONFIG_NO_FORMATTING */
107 }
108
109 void UnifiedCacheTest::TestEvictionPolicy() {
110 UErrorCode status = U_ZERO_ERROR;
111
112 // We have to call this first or else calling the UnifiedCache
113 // ctor will fail. This is by design to deter clients from using the
114 // cache API incorrectly by creating their own cache instances.
115 UnifiedCache::getInstance(status);
116
117 // We create our own local UnifiedCache instance to ensure we have
118 // complete control over it. Real clients should never ever create
119 // their own cache!
120 UnifiedCache cache(status);
121 assertSuccess("", status);
122
123 // Don't allow unused entries to exeed more than 100% of in use entries.
124 cache.setEvictionPolicy(0, 100, status);
125
126 static const char *locales[] = {
127 "1", "2", "3", "4", "5", "6", "7", "8", "9", "10",
128 "11", "12", "13", "14", "15", "16", "17", "18", "19", "20"};
129
130 const UCTItem *usedReferences[] = {NULL, NULL, NULL, NULL, NULL};
131 const UCTItem *unusedReference = NULL;
132
133 // Add 5 in-use entries
134 for (int32_t i = 0; i < UPRV_LENGTHOF(usedReferences); i++) {
135 cache.get(
136 LocaleCacheKey<UCTItem>(locales[i]),
137 &cache,
138 usedReferences[i],
139 status);
140 }
141
142 // Add 10 not in use entries.
143 for (int32_t i = 0; i < 10; ++i) {
144 cache.get(
145 LocaleCacheKey<UCTItem>(
146 locales[i + UPRV_LENGTHOF(usedReferences)]),
147 &cache,
148 unusedReference,
149 status);
150 }
151 unusedReference->removeRef();
152
153 // unused count not to exeed in use count
154 assertEquals("", UPRV_LENGTHOF(usedReferences), cache.unusedCount());
155 assertEquals("", 2*UPRV_LENGTHOF(usedReferences), cache.keyCount());
156
157 // Free up those used entries.
158 for (int32_t i = 0; i < UPRV_LENGTHOF(usedReferences); i++) {
159 usedReferences[i]->removeRef();
160 }
161
162 // This should free up all cache items
163 assertEquals("", 0, cache.keyCount());
164
165 assertSuccess("", status);
166 }
167
168
169
170 void UnifiedCacheTest::TestBounded() {
171 UErrorCode status = U_ZERO_ERROR;
172
173 // We have to call this first or else calling the UnifiedCache
174 // ctor will fail. This is by design to deter clients from using the
175 // cache API incorrectly by creating their own cache instances.
176 UnifiedCache::getInstance(status);
177
178 // We create our own local UnifiedCache instance to ensure we have
179 // complete control over it. Real clients should never ever create
180 // their own cache!
181 UnifiedCache cache(status);
182 assertSuccess("", status);
183
184 // Maximum unused count is 3.
185 cache.setEvictionPolicy(3, 0, status);
186
187 // Our cache will hold up to 3 unused key-value pairs
188 // We test the following invariants:
189 // 1. unusedCount <= 3
190 // 2. cache->get(X) always returns the same reference as long as caller
191 // already holds references to that same object.
192
193 // We first add 5 key-value pairs with two distinct values, "en" and "fr"
194 // keeping all those references.
195
196 const UCTItem *en = NULL;
197 const UCTItem *enGb = NULL;
198 const UCTItem *enUs = NULL;
199 const UCTItem *fr = NULL;
200 const UCTItem *frFr = NULL;
201 cache.get(LocaleCacheKey<UCTItem>("en_US"), &cache, enUs, status);
202 cache.get(LocaleCacheKey<UCTItem>("en"), &cache, en, status);
203 assertEquals("", 1, cache.unusedCount());
204 cache.get(LocaleCacheKey<UCTItem>("en_GB"), &cache, enGb, status);
205 cache.get(LocaleCacheKey<UCTItem>("fr_FR"), &cache, frFr, status);
206 cache.get(LocaleCacheKey<UCTItem>("fr"), &cache, fr, status);
207
208 // Client holds two unique references, "en" and "fr" the other three
209 // entries are eligible for eviction.
210 assertEquals("", 3, cache.unusedCount());
211 assertEquals("", 5, cache.keyCount());
212
213 // Exercise cache more but don't hold the references except for
214 // the last one. At the end of this, we will hold references to one
215 // additional distinct value, so we will have references to 3 distinct
216 // values.
217 const UCTItem *throwAway = NULL;
218 cache.get(LocaleCacheKey<UCTItem>("zn_AA"), &cache, throwAway, status);
219 cache.get(LocaleCacheKey<UCTItem>("sr_AA"), &cache, throwAway, status);
220 cache.get(LocaleCacheKey<UCTItem>("de_AU"), &cache, throwAway, status);
221
222 const UCTItem *deAu(throwAway);
223 deAu->addRef();
224
225 // Client holds three unique references, "en", "fr", "de" although we
226 // could have a total of 8 entries in the cache maxUnusedCount == 3
227 // so we have only 6 entries.
228 assertEquals("", 3, cache.unusedCount());
229 assertEquals("", 6, cache.keyCount());
230
231 // For all the references we have, cache must continue to return
232 // those same references (#2)
233
234 cache.get(LocaleCacheKey<UCTItem>("en"), &cache, throwAway, status);
235 if (throwAway != en) {
236 errln("Expected en to resolve to the same object.");
237 }
238 cache.get(LocaleCacheKey<UCTItem>("en_US"), &cache, throwAway, status);
239 if (throwAway != enUs) {
240 errln("Expected enUs to resolve to the same object.");
241 }
242 cache.get(LocaleCacheKey<UCTItem>("en_GB"), &cache, throwAway, status);
243 if (throwAway != enGb) {
244 errln("Expected enGb to resolve to the same object.");
245 }
246 cache.get(LocaleCacheKey<UCTItem>("fr_FR"), &cache, throwAway, status);
247 if (throwAway != frFr) {
248 errln("Expected frFr to resolve to the same object.");
249 }
250 cache.get(LocaleCacheKey<UCTItem>("fr_FR"), &cache, throwAway, status);
251 cache.get(LocaleCacheKey<UCTItem>("fr"), &cache, throwAway, status);
252 if (throwAway != fr) {
253 errln("Expected fr to resolve to the same object.");
254 }
255 cache.get(LocaleCacheKey<UCTItem>("de_AU"), &cache, throwAway, status);
256 if (throwAway != deAu) {
257 errln("Expected deAu to resolve to the same object.");
258 }
259
260 assertEquals("", 3, cache.unusedCount());
261 assertEquals("", 6, cache.keyCount());
262
263 // Now we hold a references to two more distinct values. Cache size
264 // should grow to 8.
265 const UCTItem *es = NULL;
266 const UCTItem *ru = NULL;
267 cache.get(LocaleCacheKey<UCTItem>("es"), &cache, es, status);
268 cache.get(LocaleCacheKey<UCTItem>("ru"), &cache, ru, status);
269 assertEquals("", 3, cache.unusedCount());
270 assertEquals("", 8, cache.keyCount());
271
272 // Now release all the references we hold except for
273 // es, ru, and en
274 SharedObject::clearPtr(enGb);
275 SharedObject::clearPtr(enUs);
276 SharedObject::clearPtr(fr);
277 SharedObject::clearPtr(frFr);
278 SharedObject::clearPtr(deAu);
279 SharedObject::clearPtr(es);
280 SharedObject::clearPtr(ru);
281 SharedObject::clearPtr(en);
282 SharedObject::clearPtr(throwAway);
283
284 // Size of cache should magically drop to 3.
285 assertEquals("", 3, cache.unusedCount());
286 assertEquals("", 3, cache.keyCount());
287
288 // Be sure nothing happens setting the eviction policy in the middle of
289 // a run.
290 cache.setEvictionPolicy(3, 0, status);
291 assertSuccess("", status);
292
293 }
294
79 void UnifiedCacheTest::TestBasic() { 295 void UnifiedCacheTest::TestBasic() {
80 UErrorCode status = U_ZERO_ERROR; 296 UErrorCode status = U_ZERO_ERROR;
81 const UnifiedCache *cache = UnifiedCache::getInstance(status); 297 const UnifiedCache *cache = UnifiedCache::getInstance(status);
82 assertSuccess("", status); 298 assertSuccess("", status);
83 cache->flush(); 299 cache->flush();
84 int32_t baseCount = cache->keyCount(); 300 int32_t baseCount = cache->keyCount();
85 const UCTItem *en = NULL; 301 const UCTItem *en = NULL;
86 const UCTItem *enGb = NULL; 302 const UCTItem *enGb = NULL;
87 const UCTItem *enGb2 = NULL; 303 const UCTItem *enGb2 = NULL;
88 const UCTItem *enUs = NULL; 304 const UCTItem *enUs = NULL;
(...skipping 14 matching lines...) Expand all
103 } 319 }
104 if (enGb == fr) { 320 if (enGb == fr) {
105 errln("Expected en_GB and fr to return different objects."); 321 errln("Expected en_GB and fr to return different objects.");
106 } 322 }
107 assertSuccess("", status); 323 assertSuccess("", status);
108 // en_US, en_GB, en share one object; fr_FR and fr don't share. 324 // en_US, en_GB, en share one object; fr_FR and fr don't share.
109 // 5 keys in all. 325 // 5 keys in all.
110 assertEquals("", baseCount + 5, cache->keyCount()); 326 assertEquals("", baseCount + 5, cache->keyCount());
111 SharedObject::clearPtr(enGb); 327 SharedObject::clearPtr(enGb);
112 cache->flush(); 328 cache->flush();
113 assertEquals("", baseCount + 5, cache->keyCount()); 329
330 // Only 2 unique values in the cache. flushing trims cache down
331 // to this minimum size.
332 assertEquals("", baseCount + 2, cache->keyCount());
114 SharedObject::clearPtr(enUs); 333 SharedObject::clearPtr(enUs);
115 SharedObject::clearPtr(en); 334 SharedObject::clearPtr(en);
116 cache->flush(); 335 cache->flush();
117 // With en_GB and en_US and en cleared there are no more hard references to 336 // With en_GB and en_US and en cleared there are no more hard references to
118 // the "en" object, so it gets flushed and the keys that refer to it 337 // the "en" object, so it gets flushed and the keys that refer to it
119 // get removed from the cache. 338 // get removed from the cache. Now we have just one unique value, fr, in
120 assertEquals("", baseCount + 2, cache->keyCount()); 339 // the cache
340 assertEquals("", baseCount + 1, cache->keyCount());
121 SharedObject::clearPtr(fr); 341 SharedObject::clearPtr(fr);
122 cache->flush(); 342 cache->flush();
123 assertEquals("", baseCount + 2, cache->keyCount()); 343 assertEquals("", baseCount + 1, cache->keyCount());
124 SharedObject::clearPtr(frFr); 344 SharedObject::clearPtr(frFr);
125 cache->flush(); 345 cache->flush();
126 assertEquals("", baseCount + 0, cache->keyCount()); 346 assertEquals("", baseCount + 0, cache->keyCount());
347 assertSuccess("", status);
127 } 348 }
128 349
129 void UnifiedCacheTest::TestError() { 350 void UnifiedCacheTest::TestError() {
130 UErrorCode status = U_ZERO_ERROR; 351 UErrorCode status = U_ZERO_ERROR;
131 const UnifiedCache *cache = UnifiedCache::getInstance(status); 352 const UnifiedCache *cache = UnifiedCache::getInstance(status);
132 assertSuccess("", status); 353 assertSuccess("", status);
133 cache->flush(); 354 cache->flush();
134 int32_t baseCount = cache->keyCount(); 355 int32_t baseCount = cache->keyCount();
135 const UCTItem *zh = NULL; 356 const UCTItem *zh = NULL;
136 const UCTItem *zhTw = NULL; 357 const UCTItem *zhTw = NULL;
(...skipping 32 matching lines...) Expand 10 before | Expand all | Expand 10 after
169 assertTrue("", diffKey1.hashCode() != diffKey2.hashCode()); 390 assertTrue("", diffKey1.hashCode() != diffKey2.hashCode());
170 assertTrue("", key1 == key2); 391 assertTrue("", key1 == key2);
171 assertTrue("", key1 != diffKey1); 392 assertTrue("", key1 != diffKey1);
172 assertTrue("", key1 != diffKey2); 393 assertTrue("", key1 != diffKey2);
173 assertTrue("", diffKey1 != diffKey2); 394 assertTrue("", diffKey1 != diffKey2);
174 } 395 }
175 396
176 extern IntlTest *createUnifiedCacheTest() { 397 extern IntlTest *createUnifiedCacheTest() {
177 return new UnifiedCacheTest(); 398 return new UnifiedCacheTest();
178 } 399 }
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