[grid-template-columns-composition.html]
  [Compositing: property <grid-template-columns> underlying [50px 10%\] from add [100px 100px\] to add [200px 20%\] at (-0.3) should be [120px calc(130px + 4%)\]]
    expected: FAIL

  [Compositing: property <grid-template-columns> underlying [50px 10%\] from add [100px 100px\] to add [200px 20%\] at (0) should be [150px calc(100px + 10%)\]]
    expected: FAIL

  [Compositing: property <grid-template-columns> underlying [50px 10%\] from add [100px 100px\] to add [200px 20%\] at (0.5) should be [200px calc(50px + 20%)\]]
    expected: FAIL

  [Compositing: property <grid-template-columns> underlying [50px 10%\] from add [100px 100px\] to add [200px 20%\] at (1) should be [250px 30%\]]
    expected: FAIL

  [Compositing: property <grid-template-columns> underlying [50px 10%\] from add [100px 100px\] to add [200px 20%\] at (1.5) should be [300px calc(-50px + 40%)\]]
    expected: FAIL

  [Compositing: property <grid-template-columns> underlying [1fr 1fr\] from add [1fr 2fr\] to add [2fr 1fr\] at (-0.5) should be [1.5fr 3.5fr\]]
    expected: FAIL

  [Compositing: property <grid-template-columns> underlying [1fr 1fr\] from add [1fr 2fr\] to add [2fr 1fr\] at (0) should be [2fr 3fr\]]
    expected: FAIL

  [Compositing: property <grid-template-columns> underlying [1fr 1fr\] from add [1fr 2fr\] to add [2fr 1fr\] at (0.5) should be [2.5fr 2.5fr\]]
    expected: FAIL

  [Compositing: property <grid-template-columns> underlying [1fr 1fr\] from add [1fr 2fr\] to add [2fr 1fr\] at (1) should be [3fr 2fr\]]
    expected: FAIL

  [Compositing: property <grid-template-columns> underlying [1fr 1fr\] from add [1fr 2fr\] to add [2fr 1fr\] at (1.5) should be [3.5fr 1.5fr\]]
    expected: FAIL

  [Compositing: property <grid-template-columns> underlying [50px\] from add [100px\] to replace [200px\] at (-0.3) should be [135px\]]
    expected: FAIL

  [Compositing: property <grid-template-columns> underlying [50px\] from add [100px\] to replace [200px\] at (0) should be [150px\]]
    expected: FAIL

  [Compositing: property <grid-template-columns> underlying [50px\] from add [100px\] to replace [200px\] at (0.5) should be [175px\]]
    expected: FAIL

  [Compositing: property <grid-template-columns> underlying [50px\] from add [100px\] to replace [200px\] at (1.5) should be [225px\]]
    expected: FAIL

  [Compositing: property <grid-template-columns> underlying [1fr\] from add [1fr\] to replace [3fr\] at (-0.5) should be [1.5fr\]]
    expected: FAIL

  [Compositing: property <grid-template-columns> underlying [1fr\] from add [1fr\] to replace [3fr\] at (0) should be [2fr\]]
    expected: FAIL

  [Compositing: property <grid-template-columns> underlying [1fr\] from add [1fr\] to replace [3fr\] at (0.5) should be [2.5fr\]]
    expected: FAIL

  [Compositing: property <grid-template-columns> underlying [1fr\] from add [1fr\] to replace [3fr\] at (1.5) should be [3.5fr\]]
    expected: FAIL

  [Compositing: property <grid-template-columns> underlying [1fr 1fr\] from add [1fr 1fr\] to add [3fr auto\] at (-0.5) should be [1fr 2fr\]]
    expected: FAIL

  [Compositing: property <grid-template-columns> underlying [1fr 1fr\] from add [1fr 1fr\] to add [3fr auto\] at (0) should be [2fr 2fr\]]
    expected: FAIL

  [Compositing: property <grid-template-columns> underlying [1fr 1fr\] from add [1fr 1fr\] to add [3fr auto\] at (0.5) should be [3fr auto\]]
    expected: FAIL

  [Compositing: property <grid-template-columns> underlying [1fr 1fr\] from add [1fr 1fr\] to add [3fr auto\] at (1) should be [4fr auto\]]
    expected: FAIL

  [Compositing: property <grid-template-columns> underlying [1fr 1fr\] from add [1fr 1fr\] to add [3fr auto\] at (1.5) should be [5fr auto\]]
    expected: FAIL

  [Compositing: property <grid-template-columns> underlying [1fr 1fr\] from add [1fr auto\] to add [3fr 3fr\] at (-0.5) should be [1fr auto\]]
    expected: FAIL

  [Compositing: property <grid-template-columns> underlying [1fr 1fr\] from add [1fr auto\] to add [3fr 3fr\] at (0) should be [2fr auto\]]
    expected: FAIL

  [Compositing: property <grid-template-columns> underlying [1fr 1fr\] from add [1fr auto\] to add [3fr 3fr\] at (0.5) should be [3fr 4fr\]]
    expected: FAIL

  [Compositing: property <grid-template-columns> underlying [1fr 1fr\] from add [1fr auto\] to add [3fr 3fr\] at (1) should be [4fr 4fr\]]
    expected: FAIL

  [Compositing: property <grid-template-columns> underlying [1fr 1fr\] from add [1fr auto\] to add [3fr 3fr\] at (1.5) should be [5fr 4fr\]]
    expected: FAIL

  [Compositing: property <grid-template-columns> underlying [1fr auto\] from add [1fr 1fr\] to add [3fr 3fr\] at (-0.5) should be [1fr 0fr\]]
    expected: FAIL

  [Compositing: property <grid-template-columns> underlying [1fr auto\] from add [1fr 1fr\] to add [3fr 3fr\] at (0) should be [2fr 1fr\]]
    expected: FAIL

  [Compositing: property <grid-template-columns> underlying [1fr auto\] from add [1fr 1fr\] to add [3fr 3fr\] at (0.5) should be [3fr 2fr\]]
    expected: FAIL

  [Compositing: property <grid-template-columns> underlying [1fr auto\] from add [1fr 1fr\] to add [3fr 3fr\] at (1) should be [4fr 3fr\]]
    expected: FAIL

  [Compositing: property <grid-template-columns> underlying [1fr auto\] from add [1fr 1fr\] to add [3fr 3fr\] at (1.5) should be [5fr 4fr\]]
    expected: FAIL

  [Compositing: property <grid-template-columns> underlying [0fr repeat(2, 0fr 10px) 1fr\] from add [1fr repeat(2, 1fr 20px) 1fr\] to add [2fr repeat(2, 3fr 40px) 3fr\] at (-0.3) should be [0.7fr repeat(2, 0.4fr 24px) 1.4fr\]]
    expected: FAIL

  [Compositing: property <grid-template-columns> underlying [0fr repeat(2, 0fr 10px) 1fr\] from add [1fr repeat(2, 1fr 20px) 1fr\] to add [2fr repeat(2, 3fr 40px) 3fr\] at (0) should be [1fr repeat(2, 1fr 30px) 2fr\]]
    expected: FAIL

  [Compositing: property <grid-template-columns> underlying [0fr repeat(2, 0fr 10px) 1fr\] from add [1fr repeat(2, 1fr 20px) 1fr\] to add [2fr repeat(2, 3fr 40px) 3fr\] at (0.5) should be [1.5fr repeat(2, 2fr 40px) 3fr\]]
    expected: FAIL

  [Compositing: property <grid-template-columns> underlying [0fr repeat(2, 0fr 10px) 1fr\] from add [1fr repeat(2, 1fr 20px) 1fr\] to add [2fr repeat(2, 3fr 40px) 3fr\] at (1) should be [2fr repeat(2, 3fr 50px) 4fr\]]
    expected: FAIL

  [Compositing: property <grid-template-columns> underlying [0fr repeat(2, 0fr 10px) 1fr\] from add [1fr repeat(2, 1fr 20px) 1fr\] to add [2fr repeat(2, 3fr 40px) 3fr\] at (1.5) should be [2.5fr repeat(2, 4fr 60px) 5fr\]]
    expected: FAIL

  [Compositing: property <grid-template-columns> underlying [1fr 1fr\] from add [1fr [a b\] 1fr [d\]\] to add [3fr [c\] 3fr\] at (-0.5) should be [1fr [ a b \] 1fr [d\]\]]
    expected: FAIL

  [Compositing: property <grid-template-columns> underlying [1fr 1fr\] from add [1fr [a b\] 1fr [d\]\] to add [3fr [c\] 3fr\] at (0) should be [2fr [ a b \] 2fr [d\]\]]
    expected: FAIL

  [Compositing: property <grid-template-columns> underlying [1fr 1fr\] from add [1fr [a b\] 1fr [d\]\] to add [3fr [c\] 3fr\] at (0.5) should be [3fr [c\] 3fr\]]
    expected: FAIL

  [Compositing: property <grid-template-columns> underlying [1fr 1fr\] from add [1fr [a b\] 1fr [d\]\] to add [3fr [c\] 3fr\] at (1) should be [4fr [c\] 4fr\]]
    expected: FAIL

  [Compositing: property <grid-template-columns> underlying [1fr 1fr\] from add [1fr [a b\] 1fr [d\]\] to add [3fr [c\] 3fr\] at (1.5) should be [5fr [c\] 5fr\]]
    expected: FAIL

  [Compositing: property <grid-template-columns> underlying [fit-content(5px) fit-content(20px)\] from add [fit-content(5px) fit-content(20px)\] to add [fit-content(15px) max-content\] at (-0.5) should be [fit-content(5px) fit-content(40px)\]]
    expected: FAIL

  [Compositing: property <grid-template-columns> underlying [fit-content(5px) fit-content(20px)\] from add [fit-content(5px) fit-content(20px)\] to add [fit-content(15px) max-content\] at (0) should be [fit-content(10px) fit-content(40px)\]]
    expected: FAIL

  [Compositing: property <grid-template-columns> underlying [fit-content(5px) fit-content(20px)\] from add [fit-content(5px) fit-content(20px)\] to add [fit-content(15px) max-content\] at (0.5) should be [fit-content(15px) max-content\]]
    expected: FAIL

  [Compositing: property <grid-template-columns> underlying [fit-content(5px) fit-content(20px)\] from add [fit-content(5px) fit-content(20px)\] to add [fit-content(15px) max-content\] at (1) should be [fit-content(20px) max-content\]]
    expected: FAIL

  [Compositing: property <grid-template-columns> underlying [fit-content(5px) fit-content(20px)\] from add [fit-content(5px) fit-content(20px)\] to add [fit-content(15px) max-content\] at (1.5) should be [fit-content(25px) max-content\]]
    expected: FAIL

  [Compositing: property <grid-template-columns> underlying [minmax(5px, 1fr) minmax(10px, 2fr)\] from add [minmax(5px, 1fr) minmax(10px, 2fr)\] to add [minmax(15px, 3fr) minmax(30px, auto)\] at (-0.5) should be [minmax(5px, 1fr) minmax(10px, 4fr)\]]
    expected: FAIL

  [Compositing: property <grid-template-columns> underlying [minmax(5px, 1fr) minmax(10px, 2fr)\] from add [minmax(5px, 1fr) minmax(10px, 2fr)\] to add [minmax(15px, 3fr) minmax(30px, auto)\] at (0) should be [minmax(10px, 2fr) minmax(20px, 4fr)\]]
    expected: FAIL

  [Compositing: property <grid-template-columns> underlying [minmax(5px, 1fr) minmax(10px, 2fr)\] from add [minmax(5px, 1fr) minmax(10px, 2fr)\] to add [minmax(15px, 3fr) minmax(30px, auto)\] at (0.5) should be [minmax(15px, 3fr) minmax(30px, auto)\]]
    expected: FAIL

  [Compositing: property <grid-template-columns> underlying [minmax(5px, 1fr) minmax(10px, 2fr)\] from add [minmax(5px, 1fr) minmax(10px, 2fr)\] to add [minmax(15px, 3fr) minmax(30px, auto)\] at (1) should be [minmax(20px, 4fr) minmax(40px, auto)\]]
    expected: FAIL

  [Compositing: property <grid-template-columns> underlying [minmax(5px, 1fr) minmax(10px, 2fr)\] from add [minmax(5px, 1fr) minmax(10px, 2fr)\] to add [minmax(15px, 3fr) minmax(30px, auto)\] at (1.5) should be [minmax(25px, 5fr) minmax(50px, auto)\]]
    expected: FAIL

  [Compositing: property <grid-template-columns> underlying [1fr 1fr\] from add [none\] to add [1fr 1fr\] at (0.5) should be [2fr 2fr\]]
    expected: FAIL

  [Compositing: property <grid-template-columns> underlying [1fr 1fr\] from add [none\] to add [1fr 1fr\] at (0.7) should be [2fr 2fr\]]
    expected: FAIL

  [Compositing: property <grid-template-columns> underlying [1fr 1fr\] from add [none\] to add [1fr 1fr\] at (1) should be [2fr 2fr\]]
    expected: FAIL

  [Compositing: property <grid-template-columns> underlying [1fr 1fr\] from add [none\] to add [1fr 1fr\] at (1.5) should be [2fr 2fr\]]
    expected: FAIL

  [Compositing: property <grid-template-columns> underlying [1fr 1fr\] from add [1fr 1fr\] to add [none\] at (-0.5) should be [2fr 2fr\]]
    expected: FAIL

  [Compositing: property <grid-template-columns> underlying [1fr 1fr\] from add [1fr 1fr\] to add [none\] at (0) should be [2fr 2fr\]]
    expected: FAIL

  [Compositing: property <grid-template-columns> underlying [1fr 1fr\] from add [1fr 1fr\] to add [none\] at (0.3) should be [2fr 2fr\]]
    expected: FAIL

  [Compositing: property <grid-template-columns> underlying [1fr 1fr 1fr\] from add [1fr 1fr 1fr\] to add [2fr 2fr\] at (-0.5) should be [2fr 2fr 2fr\]]
    expected: FAIL

  [Compositing: property <grid-template-columns> underlying [1fr 1fr 1fr\] from add [1fr 1fr 1fr\] to add [2fr 2fr\] at (0) should be [2fr 2fr 2fr\]]
    expected: FAIL

  [Compositing: property <grid-template-columns> underlying [1fr 1fr 1fr\] from add [1fr 1fr 1fr\] to add [2fr 2fr\] at (0.3) should be [2fr 2fr 2fr\]]
    expected: FAIL