.utf8()
        .codePoints()
        .toList()
    if (mappedCodePoints.size == 1) {
      val codePointDelta = mappedCodePoints.single() - sourceCodePoint
      if (MappedRange.InlineDelta.MAX_VALUE >= abs(codePointDelta)) {
        return MappedRange.InlineDelta(mapping.rangeStart, codePointDelta)
      }
    }
  }
  return null
}

/**
 * Inputs must have applied [withoutSectionSpans].
 */

          sourceCodePoint1 = 0,
          mappedToCodePoints = listOf((1 shl 18) - 1),
        ),
      ),
    ).isEqualTo(
      InlineDelta(
        rangeStart = 0,
        codepointDelta = InlineDelta.MAX_VALUE,
      ),
    )

    assertThat(
      inlineDeltaOrNull(
        mappingOf(
          sourceCodePoint0 = 0,
          sourceCodePoint1 = 0,