// Protect against e.cur wraparound.
	if e.cur >= bufferReset {
		e.shiftOffsets()
	}
}

// shiftOffsets will shift down all match offset.
// This is only called in rare situations to prevent integer overflow.
//
// See https://golang.org/issue/18636 and https://github.com/golang/go/issues/34121.
func (e *deflateFast) shiftOffsets() {
	if len(e.prev) == 0 {
		// We have no history; just clear the table.

				if !bytes.Equal(dst, src) {
					report("", fmt.Errorf("bytes differ after round-tripping"))
					continue
				}
			}
		}
	}
}

func TestBestSpeedShiftOffsets(t *testing.T) {
	// Test if shiftoffsets properly preserves matches and resets out-of-range matches
	// seen in https://github.com/golang/go/issues/4142
	enc := newDeflateFast()

	// testData may not generate internal matches.
	testData := make([]byte, 32)

acement) !== -1;\n    const side = isVertical ? 'left' : 'top';\n    const measurement = isVertical ? 'width' : 'height';\n\n    const shiftOffsets = {\n      start: { [side]: reference[side] },\n      end: {\n        [side]: reference[side] + reference[measurement] - popper[measurement],\n      },\n    };\n\n    data.offsets.popper = { ...popper, ...shiftOffsets[shiftvariation] };\n  }\n\n  return data;\n}\n","import getOffsetParent from '../utils/getOffsetParent';\nimport getBoundaries from '....