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| 1 | +package me.chanjar.weixin.cp.config.impl; |
| 2 | + |
| 3 | +import org.testng.Assert; |
| 4 | +import org.testng.annotations.BeforeMethod; |
| 5 | +import org.testng.annotations.Test; |
| 6 | + |
| 7 | +import java.lang.reflect.Field; |
| 8 | + |
| 9 | +/** |
| 10 | + * 测试 WxCpDefaultConfigImpl 中会话存档 SDK 引用计数的正确性 |
| 11 | + * 验证修复：SDK 在引用计数降为 0 但尚未过期时，不应被销毁 |
| 12 | + * |
| 13 | + * @author GitHub Copilot |
| 14 | + */ |
| 15 | +public class WxCpDefaultConfigImplMsgAuditSdkTest { |
| 16 | + |
| 17 | + /** |
| 18 | + * 用于测试的未过期时间偏移量（毫秒），模拟 SDK 有效状态 |
| 19 | + */ |
| 20 | + private static final long VALID_EXPIRATION_TIME_OFFSET = 7_000_000L; |
| 21 | + |
| 22 | + private WxCpDefaultConfigImpl config; |
| 23 | + |
| 24 | + @BeforeMethod |
| 25 | + public void setUp() { |
| 26 | + config = new WxCpDefaultConfigImpl(); |
| 27 | + } |
| 28 | + |
| 29 | + /** |
| 30 | + * 通过反射设置内部字段 |
| 31 | + */ |
| 32 | + private void setField(String fieldName, Object value) throws Exception { |
| 33 | + Field field = WxCpDefaultConfigImpl.class.getDeclaredField(fieldName); |
| 34 | + field.setAccessible(true); |
| 35 | + field.set(config, value); |
| 36 | + } |
| 37 | + |
| 38 | + /** |
| 39 | + * 通过反射获取内部字段值 |
| 40 | + */ |
| 41 | + private Object getField(String fieldName) throws Exception { |
| 42 | + Field field = WxCpDefaultConfigImpl.class.getDeclaredField(fieldName); |
| 43 | + field.setAccessible(true); |
| 44 | + return field.get(config); |
| 45 | + } |
| 46 | + |
| 47 | + /** |
| 48 | + * 验证 acquireMsgAuditSdk 在 SDK 有效时能正确返回 SDK 并增加引用计数 |
| 49 | + */ |
| 50 | + @Test |
| 51 | + public void testAcquireMsgAuditSdkWhenSdkValid() throws Exception { |
| 52 | + long fakeSdk = 12345L; |
| 53 | + // 设置一个有效的（未过期的）SDK |
| 54 | + setField("msgAuditSdk", fakeSdk); |
| 55 | + setField("msgAuditSdkExpiresTime", System.currentTimeMillis() + VALID_EXPIRATION_TIME_OFFSET); |
| 56 | + setField("msgAuditSdkRefCount", 0); |
| 57 | + |
| 58 | + long acquired = config.acquireMsgAuditSdk(); |
| 59 | + |
| 60 | + Assert.assertEquals(acquired, fakeSdk, "应返回已缓存的有效 SDK"); |
| 61 | + int refCount = (int) getField("msgAuditSdkRefCount"); |
| 62 | + Assert.assertEquals(refCount, 1, "引用计数应增加到 1"); |
| 63 | + } |
| 64 | + |
| 65 | + /** |
| 66 | + * 验证 acquireMsgAuditSdk 在 SDK 已过期时返回 0 |
| 67 | + */ |
| 68 | + @Test |
| 69 | + public void testAcquireMsgAuditSdkWhenSdkExpired() throws Exception { |
| 70 | + long fakeSdk = 12345L; |
| 71 | + // 设置已过期的 SDK |
| 72 | + setField("msgAuditSdk", fakeSdk); |
| 73 | + setField("msgAuditSdkExpiresTime", System.currentTimeMillis() - 1000L); |
| 74 | + setField("msgAuditSdkRefCount", 0); |
| 75 | + |
| 76 | + long acquired = config.acquireMsgAuditSdk(); |
| 77 | + |
| 78 | + Assert.assertEquals(acquired, 0L, "SDK 已过期，应返回 0"); |
| 79 | + int refCount = (int) getField("msgAuditSdkRefCount"); |
| 80 | + Assert.assertEquals(refCount, 0, "引用计数不应改变"); |
| 81 | + } |
| 82 | + |
| 83 | + /** |
| 84 | + * 核心测试：验证当引用计数降为 0 但 SDK 尚未过期时，SDK 不会被销毁 |
| 85 | + * 这是修复 issue 的关键验证：避免每次 API 调用后频繁销毁和重新初始化 SDK |
| 86 | + */ |
| 87 | + @Test |
| 88 | + public void testReleaseMsgAuditSdkShouldNotDestroyWhenNotExpired() throws Exception { |
| 89 | + long fakeSdk = 12345L; |
| 90 | + // 设置一个有效的（未过期的）SDK，引用计数为 1 |
| 91 | + setField("msgAuditSdk", fakeSdk); |
| 92 | + setField("msgAuditSdkExpiresTime", System.currentTimeMillis() + VALID_EXPIRATION_TIME_OFFSET); |
| 93 | + setField("msgAuditSdkRefCount", 1); |
| 94 | + |
| 95 | + // 释放引用，引用计数应降为 0，但 SDK 尚未过期，不应被销毁 |
| 96 | + config.releaseMsgAuditSdk(fakeSdk); |
| 97 | + |
| 98 | + long sdkAfterRelease = (long) getField("msgAuditSdk"); |
| 99 | + int refCountAfterRelease = (int) getField("msgAuditSdkRefCount"); |
| 100 | + |
| 101 | + Assert.assertEquals(sdkAfterRelease, fakeSdk, "SDK 尚未过期，引用计数归零后不应被销毁，应继续缓存"); |
| 102 | + Assert.assertEquals(refCountAfterRelease, 0, "引用计数应为 0"); |
| 103 | + } |
| 104 | + |
| 105 | + /** |
| 106 | + * 验证：SDK 在未过期、引用计数为 0 时，下次调用 acquireMsgAuditSdk 应直接复用，无需重新初始化 |
| 107 | + * 这是修复后的核心行为：避免频繁初始化 |
| 108 | + */ |
| 109 | + @Test |
| 110 | + public void testSdkReuseAfterReleaseWhenNotExpired() throws Exception { |
| 111 | + long fakeSdk = 99999L; |
| 112 | + // 模拟：SDK 有效，引用计数为 1（正在被使用） |
| 113 | + setField("msgAuditSdk", fakeSdk); |
| 114 | + setField("msgAuditSdkExpiresTime", System.currentTimeMillis() + VALID_EXPIRATION_TIME_OFFSET); |
| 115 | + setField("msgAuditSdkRefCount", 1); |
| 116 | + |
| 117 | + // 模拟方法调用结束，释放引用 |
| 118 | + config.releaseMsgAuditSdk(fakeSdk); |
| 119 | + |
| 120 | + // 模拟下一次方法调用，应该直接复用缓存的 SDK |
| 121 | + long reacquired = config.acquireMsgAuditSdk(); |
| 122 | + |
| 123 | + Assert.assertEquals(reacquired, fakeSdk, "SDK 应被复用，而不是返回 0（需要重新初始化）"); |
| 124 | + int refCount = (int) getField("msgAuditSdkRefCount"); |
| 125 | + Assert.assertEquals(refCount, 1, "复用后引用计数应为 1"); |
| 126 | + } |
| 127 | + |
| 128 | + /** |
| 129 | + * 验证：多线程场景下，多个并发调用的引用计数正确性 |
| 130 | + */ |
| 131 | + @Test |
| 132 | + public void testConcurrentRefCounting() throws Exception { |
| 133 | + long fakeSdk = 77777L; |
| 134 | + setField("msgAuditSdk", fakeSdk); |
| 135 | + setField("msgAuditSdkExpiresTime", System.currentTimeMillis() + VALID_EXPIRATION_TIME_OFFSET); |
| 136 | + setField("msgAuditSdkRefCount", 0); |
| 137 | + |
| 138 | + // 模拟 3 个并发调用同时持有 SDK |
| 139 | + long sdk1 = config.acquireMsgAuditSdk(); |
| 140 | + long sdk2 = config.acquireMsgAuditSdk(); |
| 141 | + long sdk3 = config.acquireMsgAuditSdk(); |
| 142 | + |
| 143 | + Assert.assertEquals(sdk1, fakeSdk); |
| 144 | + Assert.assertEquals(sdk2, fakeSdk); |
| 145 | + Assert.assertEquals(sdk3, fakeSdk); |
| 146 | + Assert.assertEquals((int) getField("msgAuditSdkRefCount"), 3, "应有 3 个引用"); |
| 147 | + |
| 148 | + // 逐一释放 |
| 149 | + config.releaseMsgAuditSdk(fakeSdk); |
| 150 | + Assert.assertEquals((int) getField("msgAuditSdkRefCount"), 2, "释放一个后应有 2 个引用"); |
| 151 | + Assert.assertEquals((long) getField("msgAuditSdk"), fakeSdk, "SDK 仍有引用，不应被销毁"); |
| 152 | + |
| 153 | + config.releaseMsgAuditSdk(fakeSdk); |
| 154 | + Assert.assertEquals((int) getField("msgAuditSdkRefCount"), 1, "释放两个后应有 1 个引用"); |
| 155 | + |
| 156 | + config.releaseMsgAuditSdk(fakeSdk); |
| 157 | + Assert.assertEquals((int) getField("msgAuditSdkRefCount"), 0, "全部释放后引用计数应为 0"); |
| 158 | + // SDK 未过期，不应被销毁 |
| 159 | + Assert.assertEquals((long) getField("msgAuditSdk"), fakeSdk, "SDK 未过期，全部引用释放后不应被销毁"); |
| 160 | + } |
| 161 | + |
| 162 | + /** |
| 163 | + * 验证 incrementMsgAuditSdkRefCount 在 SDK 匹配时正确增加引用计数 |
| 164 | + */ |
| 165 | + @Test |
| 166 | + public void testIncrementRefCount() throws Exception { |
| 167 | + long fakeSdk = 11111L; |
| 168 | + setField("msgAuditSdk", fakeSdk); |
| 169 | + setField("msgAuditSdkRefCount", 2); |
| 170 | + |
| 171 | + int result = config.incrementMsgAuditSdkRefCount(fakeSdk); |
| 172 | + |
| 173 | + Assert.assertEquals(result, 3, "引用计数应增加到 3"); |
| 174 | + } |
| 175 | + |
| 176 | + /** |
| 177 | + * 验证 incrementMsgAuditSdkRefCount 在 SDK 不匹配时返回 -1 |
| 178 | + */ |
| 179 | + @Test |
| 180 | + public void testIncrementRefCountWithWrongSdk() throws Exception { |
| 181 | + setField("msgAuditSdk", 11111L); |
| 182 | + setField("msgAuditSdkRefCount", 2); |
| 183 | + |
| 184 | + int result = config.incrementMsgAuditSdkRefCount(99999L); |
| 185 | + |
| 186 | + Assert.assertEquals(result, -1, "SDK 不匹配时应返回 -1"); |
| 187 | + } |
| 188 | + |
| 189 | + /** |
| 190 | + * 验证 getMsgAuditSdkRefCount 的正确性 |
| 191 | + */ |
| 192 | + @Test |
| 193 | + public void testGetMsgAuditSdkRefCount() throws Exception { |
| 194 | + long fakeSdk = 55555L; |
| 195 | + setField("msgAuditSdk", fakeSdk); |
| 196 | + setField("msgAuditSdkRefCount", 5); |
| 197 | + |
| 198 | + int count = config.getMsgAuditSdkRefCount(fakeSdk); |
| 199 | + Assert.assertEquals(count, 5, "应返回正确的引用计数"); |
| 200 | + |
| 201 | + int wrongCount = config.getMsgAuditSdkRefCount(99L); |
| 202 | + Assert.assertEquals(wrongCount, -1, "SDK 不匹配时应返回 -1"); |
| 203 | + } |
| 204 | +} |
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