* ♻ Strip empty whitespace from description extracted from docstrings. PR [#2821](https://github.com/tiangolo/fastapi/pull/2821) by [@and-semakin](https://github.com/and-semakin).

        assertFalse(renewed, "renewCredentials should return false when renewable credentials are not renewed");
        assertEquals(mockRenewableCredentials, wrapper.getCredentials(), "Credentials should remain unchanged if renew() returns null");
        verify(mockRenewableCredentials).renew();
    }

    @Test

        // Arrange & Act
        SMBSignatureValidationException ex = new SMBSignatureValidationException(msg);

        // Assert
        if (msg == null) {
            assertNull(ex.getMessage(), "Null message should remain null");
        } else {
            assertEquals(msg, ex.getMessage(), "Message should be stored as provided");
        }
        assertNull(ex.getCause(), "Cause should be null for message-only ctor");

                log.debug("Server " + dr.server + " path " + reqPath + " remain " + reqPath.substring(consumed) + " path consumed "
                        + consumed);
            }
            dr.pathConsumed = consumed;
        } else {
            if (log.isDebugEnabled()) {
                log.debug("Node " + ref.getNode() + " path " + reqPath + " remain " + reqPath.substring(consumed) + " path consumed "

        for (int i = 0; i < len; i++) {
            assertEquals(src[off + i], dst[dstIndex + i], "Byte mismatch at " + i);
        }

        // Assert: bytes before and after region remain unchanged.
        for (int i = 0; i < dstIndex; i++) {
            assertEquals((byte) 0x55, dst[i], "Unexpected change before copy region at " + i);
        }
        for (int i = dstIndex + len; i < dst.length; i++) {

        // Verify encoded length
        assertEquals(0, encodedLen, "Encoded length should be zero for zero length encodable");
        assertArrayEquals(new byte[] { 0x00, 0x00, 0x00 }, dest, "Destination array should remain unchanged for zero length encoding");
    }

    @Test
    void testEncodeEmptySourceArray() {
        // Test with an empty source array
        byte[] data = {};

    the [Guava Beta Checker] to ensure that you do not use any `@Beta` APIs!**

2.  APIs without `@Beta` will remain binary-compatible for the indefinite
    future. (Previously, we sometimes removed such APIs after a deprecation
    period. The last release to remove non-`@Beta` APIs was Guava 21.0.) Even
    `@Deprecated` APIs will remain (again, unless they are `@Beta`). We have no
    plans to start removing things again, but officially, we're leaving our

            writeBytes.setAccessible(true);
            writeBytes.invoke(cancel, dst, 0);

            // Then - array should remain unchanged
            assertArrayEquals(originalDst, dst);
        }

        @Test
        @DisplayName("Read operations should not modify buffer array")

            // Modify the copy
            copyFileId[0] = 0x00;

            // Verify original is unchanged
            assertEquals((byte) 0xFF, originalFileId[0], "Original FileId should remain unchanged");
            assertArrayEquals(
                    new byte[] { (byte) 0xFF, (byte) 0xFF, (byte) 0xFF, (byte) 0xFF, (byte) 0xFF, (byte) 0xFF, (byte) 0xFF, (byte) 0xFF,

		return
	}

	b.lastByte = -1
	b.lastRuneSize = -1

	remain := n
	for {
		skip := b.Buffered()
		if skip == 0 {
			b.fill()
			skip = b.Buffered()
		}
		if skip > remain {
			skip = remain
		}
		b.r += skip
		remain -= skip
		if remain == 0 {
			return n, nil
		}
		if b.err != nil {
			return n - remain, b.readErr()
		}
	}
}

// Read reads data into p.