testCacheFailed() — netty Function Reference

Architecture documentation for the testCacheFailed() function in DefaultDnsCacheTest.java from the netty codebase.

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Buffer→ Telemetry→ testCacheFailed() — netty Function Reference

Dependency Diagram

graph TD
  8907fae2_37e5_ad16_6e7b_b6ef3a1c0b7b["testCacheFailed()"]
  6fc766f6_eb26_5b64_4561_08621961737e["DefaultDnsCacheTest"]
  8907fae2_37e5_ad16_6e7b_b6ef3a1c0b7b -->|defined in| 6fc766f6_eb26_5b64_4561_08621961737e
  d2e65745_63d0_0413_b726_cb1b67a1b602["assertEntry()"]
  8907fae2_37e5_ad16_6e7b_b6ef3a1c0b7b -->|calls| d2e65745_63d0_0413_b726_cb1b67a1b602
  fa594583_90fc_fd6a_2b4c_0e5bb7b5d4dd["assertThrowable()"]
  8907fae2_37e5_ad16_6e7b_b6ef3a1c0b7b -->|calls| fa594583_90fc_fd6a_2b4c_0e5bb7b5d4dd
  style 8907fae2_37e5_ad16_6e7b_b6ef3a1c0b7b fill:#6366f1,stroke:#818cf8,color:#fff

Relationship Graph

Source Code

resolver-dns/src/test/java/io/netty/resolver/dns/DefaultDnsCacheTest.java lines 152–179

    @Test
    public void testCacheFailed() throws Exception {
        InetAddress addr1 = InetAddress.getByAddress(new byte[] { 10, 0, 0, 1 });
        InetAddress addr2 = InetAddress.getByAddress(new byte[] { 10, 0, 0, 2 });
        EventLoopGroup group = new MultiThreadIoEventLoopGroup(1, NioIoHandler.newFactory());

        try {
            EventLoop loop = group.next();
            final DefaultDnsCache cache = new DefaultDnsCache(1, 100, 100);
            cache.cache("netty.io", null, addr1, 10000, loop);
            cache.cache("netty.io", null, addr2, 10000, loop);

            List<? extends DnsCacheEntry> entries = cache.get("netty.io", null);
            assertEquals(2, entries.size());
            assertEntry(entries.get(0), addr1);
            assertEntry(entries.get(1), addr2);

            Exception exception = new Exception();
            cache.cache("netty.io", null, exception, loop);
            entries = cache.get("netty.io", null);
            DnsCacheEntry entry = entries.get(0);
            assertEquals(1, entries.size());
            assertThrowable(exception, entry.cause());
            assertNull(entry.address());
        } finally {
            group.shutdownGracefully();
        }
    }