[lengthadjust-char-positions.html]
  [control: without textLength the advances are one em each]
    expected: FAIL

  [lengthAdjust="spacing" moves the characters apart and leaves each advance alone]
    expected: FAIL

  [lengthAdjust="spacingAndGlyphs" scales the advances, the positions and the extents]
    expected: FAIL

  [getSubStringLength sums the scaled advances under lengthAdjust="spacingAndGlyphs"]
    expected: FAIL

  [getCharNumAtPosition finds the stretched characters under lengthAdjust="spacingAndGlyphs"]
    expected: FAIL