public void testPutIfAbsent_supportedAbsent() {
    assertNull("putIfAbsent(notPresent, value) should return null", putIfAbsent(e3()));
    expectAdded(e3());
  }

  @MapFeature.Require(SUPPORTS_PUT)
  @CollectionSize.Require(absent = ZERO)
  public void testPutIfAbsent_supportedPresent() {
    assertEquals(
        "putIfAbsent(present, value) should return existing value",
        v0(),
        getMap().putIfAbsent(k0(), v3()));

        @Test
        @DisplayName("should save modifications to disk")
        void shouldSaveModificationsToDisk() {
            assertTrue(applyGoal.shouldSaveModifications(), "Apply goal should save modifications to disk");
        }
    }

    @Nested
    @DisplayName("Execution")
    class ExecutionTests {

        @Test
        @DisplayName("should log appropriate header message")

        d.readBytesWireFormat(buf, 0);

        // After a full read both flags should be set and hasMore should be false
        assertTrue(d.getParametersDone(), "parametersDone should be true after reading");
        assertTrue(d.getDataDone(), "dataDone should be true after reading");
        assertFalse(d.getHasMore(), "hasMore should be false when both packets are fully read");
    }

    /**

        @Test
        @DisplayName("should not save modifications to disk")
        void shouldNotSaveModificationsToDisk() {
            assertFalse(checkGoal.shouldSaveModifications(), "Check goal should not save modifications to disk");
        }
    }

    @Nested
    @DisplayName("Execution")
    class ExecutionTests {

        @Test
        @DisplayName("should log appropriate header message")

            // -1 as unsigned short should be 65535
            assertEquals((short) -1, bb.getShort());
            assertEquals(65535, Short.toUnsignedInt((short) -1));
        }
    }

    @Nested
    @DisplayName("Integration Tests with SMBUtil")
    class SMBUtilIntegrationTests {

        @Test
        @DisplayName("Should use SMBUtil.writeInt2 for referral level")

        }
    }

    @Test
    public void test_classStructure() {
        // Verify the class is generic
        final java.lang.reflect.TypeVariable<?>[] typeParameters = FessActionValidator.class.getTypeParameters();
        assertEquals("Should have one type parameter", 1, typeParameters.length);

        assertEquals(SmbConstants.O_RDONLY, SmbPipeResource.PIPE_TYPE_RDONLY, "PIPE_TYPE_RDONLY should match SmbConstants.O_RDONLY");
    }

    /**
     * Test if the PIPE_TYPE_WRONLY constant has the correct value.
     */
    @Test
    void testPipeTypeWronly() {
        assertEquals(SmbConstants.O_WRONLY, SmbPipeResource.PIPE_TYPE_WRONLY, "PIPE_TYPE_WRONLY should match SmbConstants.O_WRONLY");
    }

    /**

* `allow_origins` - A list of origins that should be permitted to make cross-origin requests. E.g. `['https://example.org', 'https://www.example.org']`. You can use `['*']` to allow any origin.
* `allow_origin_regex` - A regex string to match against origins that should be permitted to make cross-origin requests. e.g. `'https://.*\.example\.org'`.

        Assertions.assertEquals(0x20, info.getAttributes(), "attributes should match");
        Assertions.assertEquals(1_600_000_000_000L, info.getCreateTime(), "create time should match");
        Assertions.assertEquals(1_700_000_000_000L, info.getLastWriteTime(), "last write should match");
        Assertions.assertEquals(1_650_000_000_000L, info.getLastAccessTime(), "last access should match");

    lockB.unlock();

    // The opposite order should fail (Policies.THROW).
    PotentialDeadlockException firstException = null;
    lockB.lock();
    PotentialDeadlockException expected =
        assertThrows(PotentialDeadlockException.class, () -> lockA.lock());
    checkMessage(expected, "LockB -> LockA", "LockA -> LockB");
    firstException = expected;
    // Second time should also fail, with a cached causal chain.