Summary

Harness status: OK

Found 56 tests

Details

ResultTest NameMessage
FailCompositing: property <mask-border-width> underlying [1 2 3 4] from add [1 2 3 4] to add [101 102 103 104] at (-0.25) should be [0]assert_true: 'from' value should be supported expected true got false
    at Test.<anonymous> (https://not-wpt.live/css/support/interpolation-testcommon.js:446:13)
    at Test.step (https://not-wpt.live/resources/testharness.js:2638:25)
    at test (https://not-wpt.live/resources/testharness.js:633:30)
    at target.measure (https://not-wpt.live/css/support/interpolation-testcommon.js:443:9)
    at create_tests (https://not-wpt.live/css/support/interpolation-testcommon.js:510:14)
Asserts run
Fail
assert_true(false, "'from' value should be supported")
    at Test.<anonymous> ( /css/support/interpolation-testcommon.js:446:13)
FailCompositing: property <mask-border-width> underlying [1 2 3 4] from add [1 2 3 4] to add [101 102 103 104] at (0) should be [2 4 6 8]assert_true: 'from' value should be supported expected true got false
    at Test.<anonymous> (https://not-wpt.live/css/support/interpolation-testcommon.js:446:13)
    at Test.step (https://not-wpt.live/resources/testharness.js:2638:25)
    at test (https://not-wpt.live/resources/testharness.js:633:30)
    at target.measure (https://not-wpt.live/css/support/interpolation-testcommon.js:443:9)
    at create_tests (https://not-wpt.live/css/support/interpolation-testcommon.js:510:14)
Asserts run
Fail
assert_true(false, "'from' value should be supported")
    at Test.<anonymous> ( /css/support/interpolation-testcommon.js:446:13)
FailCompositing: property <mask-border-width> underlying [1 2 3 4] from add [1 2 3 4] to add [101 102 103 104] at (0.25) should be [27 29 31 33]assert_true: 'from' value should be supported expected true got false
    at Test.<anonymous> (https://not-wpt.live/css/support/interpolation-testcommon.js:446:13)
    at Test.step (https://not-wpt.live/resources/testharness.js:2638:25)
    at test (https://not-wpt.live/resources/testharness.js:633:30)
    at target.measure (https://not-wpt.live/css/support/interpolation-testcommon.js:443:9)
    at create_tests (https://not-wpt.live/css/support/interpolation-testcommon.js:510:14)
Asserts run
Fail
assert_true(false, "'from' value should be supported")
    at Test.<anonymous> ( /css/support/interpolation-testcommon.js:446:13)
FailCompositing: property <mask-border-width> underlying [1 2 3 4] from add [1 2 3 4] to add [101 102 103 104] at (0.5) should be [52 54 56 58]assert_true: 'from' value should be supported expected true got false
    at Test.<anonymous> (https://not-wpt.live/css/support/interpolation-testcommon.js:446:13)
    at Test.step (https://not-wpt.live/resources/testharness.js:2638:25)
    at test (https://not-wpt.live/resources/testharness.js:633:30)
    at target.measure (https://not-wpt.live/css/support/interpolation-testcommon.js:443:9)
    at create_tests (https://not-wpt.live/css/support/interpolation-testcommon.js:510:14)
Asserts run
Fail
assert_true(false, "'from' value should be supported")
    at Test.<anonymous> ( /css/support/interpolation-testcommon.js:446:13)
FailCompositing: property <mask-border-width> underlying [1 2 3 4] from add [1 2 3 4] to add [101 102 103 104] at (0.75) should be [77 79 81 83]assert_true: 'from' value should be supported expected true got false
    at Test.<anonymous> (https://not-wpt.live/css/support/interpolation-testcommon.js:446:13)
    at Test.step (https://not-wpt.live/resources/testharness.js:2638:25)
    at test (https://not-wpt.live/resources/testharness.js:633:30)
    at target.measure (https://not-wpt.live/css/support/interpolation-testcommon.js:443:9)
    at create_tests (https://not-wpt.live/css/support/interpolation-testcommon.js:510:14)
Asserts run
Fail
assert_true(false, "'from' value should be supported")
    at Test.<anonymous> ( /css/support/interpolation-testcommon.js:446:13)
FailCompositing: property <mask-border-width> underlying [1 2 3 4] from add [1 2 3 4] to add [101 102 103 104] at (1) should be [102 104 106 108]assert_true: 'from' value should be supported expected true got false
    at Test.<anonymous> (https://not-wpt.live/css/support/interpolation-testcommon.js:446:13)
    at Test.step (https://not-wpt.live/resources/testharness.js:2638:25)
    at test (https://not-wpt.live/resources/testharness.js:633:30)
    at target.measure (https://not-wpt.live/css/support/interpolation-testcommon.js:443:9)
    at create_tests (https://not-wpt.live/css/support/interpolation-testcommon.js:510:14)
Asserts run
Fail
assert_true(false, "'from' value should be supported")
    at Test.<anonymous> ( /css/support/interpolation-testcommon.js:446:13)
FailCompositing: property <mask-border-width> underlying [1 2 3 4] from add [1 2 3 4] to add [101 102 103 104] at (1.25) should be [127 129 131 133]assert_true: 'from' value should be supported expected true got false
    at Test.<anonymous> (https://not-wpt.live/css/support/interpolation-testcommon.js:446:13)
    at Test.step (https://not-wpt.live/resources/testharness.js:2638:25)
    at test (https://not-wpt.live/resources/testharness.js:633:30)
    at target.measure (https://not-wpt.live/css/support/interpolation-testcommon.js:443:9)
    at create_tests (https://not-wpt.live/css/support/interpolation-testcommon.js:510:14)
Asserts run
Fail
assert_true(false, "'from' value should be supported")
    at Test.<anonymous> ( /css/support/interpolation-testcommon.js:446:13)
FailCompositing: property <mask-border-width> underlying [100 200 300 400] from add [100] to add [200 300 500] at (-0.25) should be [175 250 300 450]assert_true: 'from' value should be supported expected true got false
    at Test.<anonymous> (https://not-wpt.live/css/support/interpolation-testcommon.js:446:13)
    at Test.step (https://not-wpt.live/resources/testharness.js:2638:25)
    at test (https://not-wpt.live/resources/testharness.js:633:30)
    at target.measure (https://not-wpt.live/css/support/interpolation-testcommon.js:443:9)
    at create_tests (https://not-wpt.live/css/support/interpolation-testcommon.js:510:14)
Asserts run
Fail
assert_true(false, "'from' value should be supported")
    at Test.<anonymous> ( /css/support/interpolation-testcommon.js:446:13)
FailCompositing: property <mask-border-width> underlying [100 200 300 400] from add [100] to add [200 300 500] at (0) should be [200 300 400 500]assert_true: 'from' value should be supported expected true got false
    at Test.<anonymous> (https://not-wpt.live/css/support/interpolation-testcommon.js:446:13)
    at Test.step (https://not-wpt.live/resources/testharness.js:2638:25)
    at test (https://not-wpt.live/resources/testharness.js:633:30)
    at target.measure (https://not-wpt.live/css/support/interpolation-testcommon.js:443:9)
    at create_tests (https://not-wpt.live/css/support/interpolation-testcommon.js:510:14)
Asserts run
Fail
assert_true(false, "'from' value should be supported")
    at Test.<anonymous> ( /css/support/interpolation-testcommon.js:446:13)
FailCompositing: property <mask-border-width> underlying [100 200 300 400] from add [100] to add [200 300 500] at (0.25) should be [225 350 500 550]assert_true: 'from' value should be supported expected true got false
    at Test.<anonymous> (https://not-wpt.live/css/support/interpolation-testcommon.js:446:13)
    at Test.step (https://not-wpt.live/resources/testharness.js:2638:25)
    at test (https://not-wpt.live/resources/testharness.js:633:30)
    at target.measure (https://not-wpt.live/css/support/interpolation-testcommon.js:443:9)
    at create_tests (https://not-wpt.live/css/support/interpolation-testcommon.js:510:14)
Asserts run
Fail
assert_true(false, "'from' value should be supported")
    at Test.<anonymous> ( /css/support/interpolation-testcommon.js:446:13)
FailCompositing: property <mask-border-width> underlying [100 200 300 400] from add [100] to add [200 300 500] at (0.5) should be [250 400 600 600]assert_true: 'from' value should be supported expected true got false
    at Test.<anonymous> (https://not-wpt.live/css/support/interpolation-testcommon.js:446:13)
    at Test.step (https://not-wpt.live/resources/testharness.js:2638:25)
    at test (https://not-wpt.live/resources/testharness.js:633:30)
    at target.measure (https://not-wpt.live/css/support/interpolation-testcommon.js:443:9)
    at create_tests (https://not-wpt.live/css/support/interpolation-testcommon.js:510:14)
Asserts run
Fail
assert_true(false, "'from' value should be supported")
    at Test.<anonymous> ( /css/support/interpolation-testcommon.js:446:13)
FailCompositing: property <mask-border-width> underlying [100 200 300 400] from add [100] to add [200 300 500] at (0.75) should be [275 450 700 650]assert_true: 'from' value should be supported expected true got false
    at Test.<anonymous> (https://not-wpt.live/css/support/interpolation-testcommon.js:446:13)
    at Test.step (https://not-wpt.live/resources/testharness.js:2638:25)
    at test (https://not-wpt.live/resources/testharness.js:633:30)
    at target.measure (https://not-wpt.live/css/support/interpolation-testcommon.js:443:9)
    at create_tests (https://not-wpt.live/css/support/interpolation-testcommon.js:510:14)
Asserts run
Fail
assert_true(false, "'from' value should be supported")
    at Test.<anonymous> ( /css/support/interpolation-testcommon.js:446:13)
FailCompositing: property <mask-border-width> underlying [100 200 300 400] from add [100] to add [200 300 500] at (1) should be [300 500 800 700]assert_true: 'from' value should be supported expected true got false
    at Test.<anonymous> (https://not-wpt.live/css/support/interpolation-testcommon.js:446:13)
    at Test.step (https://not-wpt.live/resources/testharness.js:2638:25)
    at test (https://not-wpt.live/resources/testharness.js:633:30)
    at target.measure (https://not-wpt.live/css/support/interpolation-testcommon.js:443:9)
    at create_tests (https://not-wpt.live/css/support/interpolation-testcommon.js:510:14)
Asserts run
Fail
assert_true(false, "'from' value should be supported")
    at Test.<anonymous> ( /css/support/interpolation-testcommon.js:446:13)
FailCompositing: property <mask-border-width> underlying [100 200 300 400] from add [100] to add [200 300 500] at (1.25) should be [325 550 900 750]assert_true: 'from' value should be supported expected true got false
    at Test.<anonymous> (https://not-wpt.live/css/support/interpolation-testcommon.js:446:13)
    at Test.step (https://not-wpt.live/resources/testharness.js:2638:25)
    at test (https://not-wpt.live/resources/testharness.js:633:30)
    at target.measure (https://not-wpt.live/css/support/interpolation-testcommon.js:443:9)
    at create_tests (https://not-wpt.live/css/support/interpolation-testcommon.js:510:14)
Asserts run
Fail
assert_true(false, "'from' value should be supported")
    at Test.<anonymous> ( /css/support/interpolation-testcommon.js:446:13)
FailCompositing: property <mask-border-width> underlying [1 2 3px 4%] from add [1 2 3px 4%] to add [101 102 103px 104%] at (-0.25) should be [0 0 0px 0%]assert_true: 'from' value should be supported expected true got false
    at Test.<anonymous> (https://not-wpt.live/css/support/interpolation-testcommon.js:446:13)
    at Test.step (https://not-wpt.live/resources/testharness.js:2638:25)
    at test (https://not-wpt.live/resources/testharness.js:633:30)
    at target.measure (https://not-wpt.live/css/support/interpolation-testcommon.js:443:9)
    at create_tests (https://not-wpt.live/css/support/interpolation-testcommon.js:510:14)
Asserts run
Fail
assert_true(false, "'from' value should be supported")
    at Test.<anonymous> ( /css/support/interpolation-testcommon.js:446:13)
FailCompositing: property <mask-border-width> underlying [1 2 3px 4%] from add [1 2 3px 4%] to add [101 102 103px 104%] at (0) should be [2 4 6px 8%]assert_true: 'from' value should be supported expected true got false
    at Test.<anonymous> (https://not-wpt.live/css/support/interpolation-testcommon.js:446:13)
    at Test.step (https://not-wpt.live/resources/testharness.js:2638:25)
    at test (https://not-wpt.live/resources/testharness.js:633:30)
    at target.measure (https://not-wpt.live/css/support/interpolation-testcommon.js:443:9)
    at create_tests (https://not-wpt.live/css/support/interpolation-testcommon.js:510:14)
Asserts run
Fail
assert_true(false, "'from' value should be supported")
    at Test.<anonymous> ( /css/support/interpolation-testcommon.js:446:13)
FailCompositing: property <mask-border-width> underlying [1 2 3px 4%] from add [1 2 3px 4%] to add [101 102 103px 104%] at (0.25) should be [27 29 31px 33%]assert_true: 'from' value should be supported expected true got false
    at Test.<anonymous> (https://not-wpt.live/css/support/interpolation-testcommon.js:446:13)
    at Test.step (https://not-wpt.live/resources/testharness.js:2638:25)
    at test (https://not-wpt.live/resources/testharness.js:633:30)
    at target.measure (https://not-wpt.live/css/support/interpolation-testcommon.js:443:9)
    at create_tests (https://not-wpt.live/css/support/interpolation-testcommon.js:510:14)
Asserts run
Fail
assert_true(false, "'from' value should be supported")
    at Test.<anonymous> ( /css/support/interpolation-testcommon.js:446:13)
FailCompositing: property <mask-border-width> underlying [1 2 3px 4%] from add [1 2 3px 4%] to add [101 102 103px 104%] at (0.5) should be [52 54 56px 58%]assert_true: 'from' value should be supported expected true got false
    at Test.<anonymous> (https://not-wpt.live/css/support/interpolation-testcommon.js:446:13)
    at Test.step (https://not-wpt.live/resources/testharness.js:2638:25)
    at test (https://not-wpt.live/resources/testharness.js:633:30)
    at target.measure (https://not-wpt.live/css/support/interpolation-testcommon.js:443:9)
    at create_tests (https://not-wpt.live/css/support/interpolation-testcommon.js:510:14)
Asserts run
Fail
assert_true(false, "'from' value should be supported")
    at Test.<anonymous> ( /css/support/interpolation-testcommon.js:446:13)
FailCompositing: property <mask-border-width> underlying [1 2 3px 4%] from add [1 2 3px 4%] to add [101 102 103px 104%] at (0.75) should be [77 79 81px 83%]assert_true: 'from' value should be supported expected true got false
    at Test.<anonymous> (https://not-wpt.live/css/support/interpolation-testcommon.js:446:13)
    at Test.step (https://not-wpt.live/resources/testharness.js:2638:25)
    at test (https://not-wpt.live/resources/testharness.js:633:30)
    at target.measure (https://not-wpt.live/css/support/interpolation-testcommon.js:443:9)
    at create_tests (https://not-wpt.live/css/support/interpolation-testcommon.js:510:14)
Asserts run
Fail
assert_true(false, "'from' value should be supported")
    at Test.<anonymous> ( /css/support/interpolation-testcommon.js:446:13)
FailCompositing: property <mask-border-width> underlying [1 2 3px 4%] from add [1 2 3px 4%] to add [101 102 103px 104%] at (1) should be [102 104 106px 108%]assert_true: 'from' value should be supported expected true got false
    at Test.<anonymous> (https://not-wpt.live/css/support/interpolation-testcommon.js:446:13)
    at Test.step (https://not-wpt.live/resources/testharness.js:2638:25)
    at test (https://not-wpt.live/resources/testharness.js:633:30)
    at target.measure (https://not-wpt.live/css/support/interpolation-testcommon.js:443:9)
    at create_tests (https://not-wpt.live/css/support/interpolation-testcommon.js:510:14)
Asserts run
Fail
assert_true(false, "'from' value should be supported")
    at Test.<anonymous> ( /css/support/interpolation-testcommon.js:446:13)
FailCompositing: property <mask-border-width> underlying [1 2 3px 4%] from add [1 2 3px 4%] to add [101 102 103px 104%] at (1.25) should be [127 129 131px 133%]assert_true: 'from' value should be supported expected true got false
    at Test.<anonymous> (https://not-wpt.live/css/support/interpolation-testcommon.js:446:13)
    at Test.step (https://not-wpt.live/resources/testharness.js:2638:25)
    at test (https://not-wpt.live/resources/testharness.js:633:30)
    at target.measure (https://not-wpt.live/css/support/interpolation-testcommon.js:443:9)
    at create_tests (https://not-wpt.live/css/support/interpolation-testcommon.js:510:14)
Asserts run
Fail
assert_true(false, "'from' value should be supported")
    at Test.<anonymous> ( /css/support/interpolation-testcommon.js:446:13)
FailCompositing: property <mask-border-width> underlying [10px 20px] from add [190px 180px 290px 280px] to add [90px 80px] at (-0.25) should be [225px 225px 350px 350px]assert_true: 'from' value should be supported expected true got false
    at Test.<anonymous> (https://not-wpt.live/css/support/interpolation-testcommon.js:446:13)
    at Test.step (https://not-wpt.live/resources/testharness.js:2638:25)
    at test (https://not-wpt.live/resources/testharness.js:633:30)
    at target.measure (https://not-wpt.live/css/support/interpolation-testcommon.js:443:9)
    at create_tests (https://not-wpt.live/css/support/interpolation-testcommon.js:510:14)
Asserts run
Fail
assert_true(false, "'from' value should be supported")
    at Test.<anonymous> ( /css/support/interpolation-testcommon.js:446:13)
FailCompositing: property <mask-border-width> underlying [10px 20px] from add [190px 180px 290px 280px] to add [90px 80px] at (0) should be [200px 200px 300px 300px]assert_true: 'from' value should be supported expected true got false
    at Test.<anonymous> (https://not-wpt.live/css/support/interpolation-testcommon.js:446:13)
    at Test.step (https://not-wpt.live/resources/testharness.js:2638:25)
    at test (https://not-wpt.live/resources/testharness.js:633:30)
    at target.measure (https://not-wpt.live/css/support/interpolation-testcommon.js:443:9)
    at create_tests (https://not-wpt.live/css/support/interpolation-testcommon.js:510:14)
Asserts run
Fail
assert_true(false, "'from' value should be supported")
    at Test.<anonymous> ( /css/support/interpolation-testcommon.js:446:13)
FailCompositing: property <mask-border-width> underlying [10px 20px] from add [190px 180px 290px 280px] to add [90px 80px] at (0.25) should be [175px 175px 250px 250px]assert_true: 'from' value should be supported expected true got false
    at Test.<anonymous> (https://not-wpt.live/css/support/interpolation-testcommon.js:446:13)
    at Test.step (https://not-wpt.live/resources/testharness.js:2638:25)
    at test (https://not-wpt.live/resources/testharness.js:633:30)
    at target.measure (https://not-wpt.live/css/support/interpolation-testcommon.js:443:9)
    at create_tests (https://not-wpt.live/css/support/interpolation-testcommon.js:510:14)
Asserts run
Fail
assert_true(false, "'from' value should be supported")
    at Test.<anonymous> ( /css/support/interpolation-testcommon.js:446:13)
FailCompositing: property <mask-border-width> underlying [10px 20px] from add [190px 180px 290px 280px] to add [90px 80px] at (0.5) should be [150px 150px 200px 200px]assert_true: 'from' value should be supported expected true got false
    at Test.<anonymous> (https://not-wpt.live/css/support/interpolation-testcommon.js:446:13)
    at Test.step (https://not-wpt.live/resources/testharness.js:2638:25)
    at test (https://not-wpt.live/resources/testharness.js:633:30)
    at target.measure (https://not-wpt.live/css/support/interpolation-testcommon.js:443:9)
    at create_tests (https://not-wpt.live/css/support/interpolation-testcommon.js:510:14)
Asserts run
Fail
assert_true(false, "'from' value should be supported")
    at Test.<anonymous> ( /css/support/interpolation-testcommon.js:446:13)
FailCompositing: property <mask-border-width> underlying [10px 20px] from add [190px 180px 290px 280px] to add [90px 80px] at (0.75) should be [125px 125px 150px 150px]assert_true: 'from' value should be supported expected true got false
    at Test.<anonymous> (https://not-wpt.live/css/support/interpolation-testcommon.js:446:13)
    at Test.step (https://not-wpt.live/resources/testharness.js:2638:25)
    at test (https://not-wpt.live/resources/testharness.js:633:30)
    at target.measure (https://not-wpt.live/css/support/interpolation-testcommon.js:443:9)
    at create_tests (https://not-wpt.live/css/support/interpolation-testcommon.js:510:14)
Asserts run
Fail
assert_true(false, "'from' value should be supported")
    at Test.<anonymous> ( /css/support/interpolation-testcommon.js:446:13)
FailCompositing: property <mask-border-width> underlying [10px 20px] from add [190px 180px 290px 280px] to add [90px 80px] at (1) should be [100px]assert_true: 'from' value should be supported expected true got false
    at Test.<anonymous> (https://not-wpt.live/css/support/interpolation-testcommon.js:446:13)
    at Test.step (https://not-wpt.live/resources/testharness.js:2638:25)
    at test (https://not-wpt.live/resources/testharness.js:633:30)
    at target.measure (https://not-wpt.live/css/support/interpolation-testcommon.js:443:9)
    at create_tests (https://not-wpt.live/css/support/interpolation-testcommon.js:510:14)
Asserts run
Fail
assert_true(false, "'from' value should be supported")
    at Test.<anonymous> ( /css/support/interpolation-testcommon.js:446:13)
FailCompositing: property <mask-border-width> underlying [10px 20px] from add [190px 180px 290px 280px] to add [90px 80px] at (1.25) should be [75px 75px 50px 50px]assert_true: 'from' value should be supported expected true got false
    at Test.<anonymous> (https://not-wpt.live/css/support/interpolation-testcommon.js:446:13)
    at Test.step (https://not-wpt.live/resources/testharness.js:2638:25)
    at test (https://not-wpt.live/resources/testharness.js:633:30)
    at target.measure (https://not-wpt.live/css/support/interpolation-testcommon.js:443:9)
    at create_tests (https://not-wpt.live/css/support/interpolation-testcommon.js:510:14)
Asserts run
Fail
assert_true(false, "'from' value should be supported")
    at Test.<anonymous> ( /css/support/interpolation-testcommon.js:446:13)
FailCompositing: property <mask-border-width> underlying [10 20px] from replace [100 100px] to add [190 180px] at (-0.25) should be [75 75px]assert_true: 'from' value should be supported expected true got false
    at Test.<anonymous> (https://not-wpt.live/css/support/interpolation-testcommon.js:446:13)
    at Test.step (https://not-wpt.live/resources/testharness.js:2638:25)
    at test (https://not-wpt.live/resources/testharness.js:633:30)
    at target.measure (https://not-wpt.live/css/support/interpolation-testcommon.js:443:9)
    at create_tests (https://not-wpt.live/css/support/interpolation-testcommon.js:510:14)
Asserts run
Fail
assert_true(false, "'from' value should be supported")
    at Test.<anonymous> ( /css/support/interpolation-testcommon.js:446:13)
FailCompositing: property <mask-border-width> underlying [10 20px] from replace [100 100px] to add [190 180px] at (0) should be [100 100px]assert_true: 'from' value should be supported expected true got false
    at Test.<anonymous> (https://not-wpt.live/css/support/interpolation-testcommon.js:446:13)
    at Test.step (https://not-wpt.live/resources/testharness.js:2638:25)
    at test (https://not-wpt.live/resources/testharness.js:633:30)
    at target.measure (https://not-wpt.live/css/support/interpolation-testcommon.js:443:9)
    at create_tests (https://not-wpt.live/css/support/interpolation-testcommon.js:510:14)
Asserts run
Fail
assert_true(false, "'from' value should be supported")
    at Test.<anonymous> ( /css/support/interpolation-testcommon.js:446:13)
FailCompositing: property <mask-border-width> underlying [10 20px] from replace [100 100px] to add [190 180px] at (0.25) should be [125 125px]assert_true: 'from' value should be supported expected true got false
    at Test.<anonymous> (https://not-wpt.live/css/support/interpolation-testcommon.js:446:13)
    at Test.step (https://not-wpt.live/resources/testharness.js:2638:25)
    at test (https://not-wpt.live/resources/testharness.js:633:30)
    at target.measure (https://not-wpt.live/css/support/interpolation-testcommon.js:443:9)
    at create_tests (https://not-wpt.live/css/support/interpolation-testcommon.js:510:14)
Asserts run
Fail
assert_true(false, "'from' value should be supported")
    at Test.<anonymous> ( /css/support/interpolation-testcommon.js:446:13)
FailCompositing: property <mask-border-width> underlying [10 20px] from replace [100 100px] to add [190 180px] at (0.5) should be [150 150px]assert_true: 'from' value should be supported expected true got false
    at Test.<anonymous> (https://not-wpt.live/css/support/interpolation-testcommon.js:446:13)
    at Test.step (https://not-wpt.live/resources/testharness.js:2638:25)
    at test (https://not-wpt.live/resources/testharness.js:633:30)
    at target.measure (https://not-wpt.live/css/support/interpolation-testcommon.js:443:9)
    at create_tests (https://not-wpt.live/css/support/interpolation-testcommon.js:510:14)
Asserts run
Fail
assert_true(false, "'from' value should be supported")
    at Test.<anonymous> ( /css/support/interpolation-testcommon.js:446:13)
FailCompositing: property <mask-border-width> underlying [10 20px] from replace [100 100px] to add [190 180px] at (0.75) should be [175 175px]assert_true: 'from' value should be supported expected true got false
    at Test.<anonymous> (https://not-wpt.live/css/support/interpolation-testcommon.js:446:13)
    at Test.step (https://not-wpt.live/resources/testharness.js:2638:25)
    at test (https://not-wpt.live/resources/testharness.js:633:30)
    at target.measure (https://not-wpt.live/css/support/interpolation-testcommon.js:443:9)
    at create_tests (https://not-wpt.live/css/support/interpolation-testcommon.js:510:14)
Asserts run
Fail
assert_true(false, "'from' value should be supported")
    at Test.<anonymous> ( /css/support/interpolation-testcommon.js:446:13)
FailCompositing: property <mask-border-width> underlying [10 20px] from replace [100 100px] to add [190 180px] at (1) should be [200 200px]assert_true: 'from' value should be supported expected true got false
    at Test.<anonymous> (https://not-wpt.live/css/support/interpolation-testcommon.js:446:13)
    at Test.step (https://not-wpt.live/resources/testharness.js:2638:25)
    at test (https://not-wpt.live/resources/testharness.js:633:30)
    at target.measure (https://not-wpt.live/css/support/interpolation-testcommon.js:443:9)
    at create_tests (https://not-wpt.live/css/support/interpolation-testcommon.js:510:14)
Asserts run
Fail
assert_true(false, "'from' value should be supported")
    at Test.<anonymous> ( /css/support/interpolation-testcommon.js:446:13)
FailCompositing: property <mask-border-width> underlying [10 20px] from replace [100 100px] to add [190 180px] at (1.25) should be [225 225px]assert_true: 'from' value should be supported expected true got false
    at Test.<anonymous> (https://not-wpt.live/css/support/interpolation-testcommon.js:446:13)
    at Test.step (https://not-wpt.live/resources/testharness.js:2638:25)
    at test (https://not-wpt.live/resources/testharness.js:633:30)
    at target.measure (https://not-wpt.live/css/support/interpolation-testcommon.js:443:9)
    at create_tests (https://not-wpt.live/css/support/interpolation-testcommon.js:510:14)
Asserts run
Fail
assert_true(false, "'from' value should be supported")
    at Test.<anonymous> ( /css/support/interpolation-testcommon.js:446:13)
FailCompositing: property <mask-border-width> underlying [10px 20] from add [90px 80] to replace [0px 0 0px 0] at (-0.25) should be [125px 125]assert_true: 'from' value should be supported expected true got false
    at Test.<anonymous> (https://not-wpt.live/css/support/interpolation-testcommon.js:446:13)
    at Test.step (https://not-wpt.live/resources/testharness.js:2638:25)
    at test (https://not-wpt.live/resources/testharness.js:633:30)
    at target.measure (https://not-wpt.live/css/support/interpolation-testcommon.js:443:9)
    at create_tests (https://not-wpt.live/css/support/interpolation-testcommon.js:510:14)
Asserts run
Fail
assert_true(false, "'from' value should be supported")
    at Test.<anonymous> ( /css/support/interpolation-testcommon.js:446:13)
FailCompositing: property <mask-border-width> underlying [10px 20] from add [90px 80] to replace [0px 0 0px 0] at (0) should be [100px 100]assert_true: 'from' value should be supported expected true got false
    at Test.<anonymous> (https://not-wpt.live/css/support/interpolation-testcommon.js:446:13)
    at Test.step (https://not-wpt.live/resources/testharness.js:2638:25)
    at test (https://not-wpt.live/resources/testharness.js:633:30)
    at target.measure (https://not-wpt.live/css/support/interpolation-testcommon.js:443:9)
    at create_tests (https://not-wpt.live/css/support/interpolation-testcommon.js:510:14)
Asserts run
Fail
assert_true(false, "'from' value should be supported")
    at Test.<anonymous> ( /css/support/interpolation-testcommon.js:446:13)
FailCompositing: property <mask-border-width> underlying [10px 20] from add [90px 80] to replace [0px 0 0px 0] at (0.25) should be [75px 75]assert_true: 'from' value should be supported expected true got false
    at Test.<anonymous> (https://not-wpt.live/css/support/interpolation-testcommon.js:446:13)
    at Test.step (https://not-wpt.live/resources/testharness.js:2638:25)
    at test (https://not-wpt.live/resources/testharness.js:633:30)
    at target.measure (https://not-wpt.live/css/support/interpolation-testcommon.js:443:9)
    at create_tests (https://not-wpt.live/css/support/interpolation-testcommon.js:510:14)
Asserts run
Fail
assert_true(false, "'from' value should be supported")
    at Test.<anonymous> ( /css/support/interpolation-testcommon.js:446:13)
FailCompositing: property <mask-border-width> underlying [10px 20] from add [90px 80] to replace [0px 0 0px 0] at (0.5) should be [50px 50]assert_true: 'from' value should be supported expected true got false
    at Test.<anonymous> (https://not-wpt.live/css/support/interpolation-testcommon.js:446:13)
    at Test.step (https://not-wpt.live/resources/testharness.js:2638:25)
    at test (https://not-wpt.live/resources/testharness.js:633:30)
    at target.measure (https://not-wpt.live/css/support/interpolation-testcommon.js:443:9)
    at create_tests (https://not-wpt.live/css/support/interpolation-testcommon.js:510:14)
Asserts run
Fail
assert_true(false, "'from' value should be supported")
    at Test.<anonymous> ( /css/support/interpolation-testcommon.js:446:13)
FailCompositing: property <mask-border-width> underlying [10px 20] from add [90px 80] to replace [0px 0 0px 0] at (0.75) should be [25px 25]assert_true: 'from' value should be supported expected true got false
    at Test.<anonymous> (https://not-wpt.live/css/support/interpolation-testcommon.js:446:13)
    at Test.step (https://not-wpt.live/resources/testharness.js:2638:25)
    at test (https://not-wpt.live/resources/testharness.js:633:30)
    at target.measure (https://not-wpt.live/css/support/interpolation-testcommon.js:443:9)
    at create_tests (https://not-wpt.live/css/support/interpolation-testcommon.js:510:14)
Asserts run
Fail
assert_true(false, "'from' value should be supported")
    at Test.<anonymous> ( /css/support/interpolation-testcommon.js:446:13)
FailCompositing: property <mask-border-width> underlying [10px 20] from add [90px 80] to replace [0px 0 0px 0] at (1) should be [0px 0]assert_true: 'from' value should be supported expected true got false
    at Test.<anonymous> (https://not-wpt.live/css/support/interpolation-testcommon.js:446:13)
    at Test.step (https://not-wpt.live/resources/testharness.js:2638:25)
    at test (https://not-wpt.live/resources/testharness.js:633:30)
    at target.measure (https://not-wpt.live/css/support/interpolation-testcommon.js:443:9)
    at create_tests (https://not-wpt.live/css/support/interpolation-testcommon.js:510:14)
Asserts run
Fail
assert_true(false, "'from' value should be supported")
    at Test.<anonymous> ( /css/support/interpolation-testcommon.js:446:13)
FailCompositing: property <mask-border-width> underlying [10px 20] from add [90px 80] to replace [0px 0 0px 0] at (1.25) should be [0px 0]assert_true: 'from' value should be supported expected true got false
    at Test.<anonymous> (https://not-wpt.live/css/support/interpolation-testcommon.js:446:13)
    at Test.step (https://not-wpt.live/resources/testharness.js:2638:25)
    at test (https://not-wpt.live/resources/testharness.js:633:30)
    at target.measure (https://not-wpt.live/css/support/interpolation-testcommon.js:443:9)
    at create_tests (https://not-wpt.live/css/support/interpolation-testcommon.js:510:14)
Asserts run
Fail
assert_true(false, "'from' value should be supported")
    at Test.<anonymous> ( /css/support/interpolation-testcommon.js:446:13)
FailCompositing: property <mask-border-width> underlying [10 20] from add [100px 150px] to add [200px 250px] at (-0.25) should be [75px 125px]assert_true: 'from' value should be supported expected true got false
    at Test.<anonymous> (https://not-wpt.live/css/support/interpolation-testcommon.js:446:13)
    at Test.step (https://not-wpt.live/resources/testharness.js:2638:25)
    at test (https://not-wpt.live/resources/testharness.js:633:30)
    at target.measure (https://not-wpt.live/css/support/interpolation-testcommon.js:443:9)
    at create_tests (https://not-wpt.live/css/support/interpolation-testcommon.js:510:14)
Asserts run
Fail
assert_true(false, "'from' value should be supported")
    at Test.<anonymous> ( /css/support/interpolation-testcommon.js:446:13)
FailCompositing: property <mask-border-width> underlying [10 20] from add [100px 150px] to add [200px 250px] at (0) should be [100px 150px]assert_true: 'from' value should be supported expected true got false
    at Test.<anonymous> (https://not-wpt.live/css/support/interpolation-testcommon.js:446:13)
    at Test.step (https://not-wpt.live/resources/testharness.js:2638:25)
    at test (https://not-wpt.live/resources/testharness.js:633:30)
    at target.measure (https://not-wpt.live/css/support/interpolation-testcommon.js:443:9)
    at create_tests (https://not-wpt.live/css/support/interpolation-testcommon.js:510:14)
Asserts run
Fail
assert_true(false, "'from' value should be supported")
    at Test.<anonymous> ( /css/support/interpolation-testcommon.js:446:13)
FailCompositing: property <mask-border-width> underlying [10 20] from add [100px 150px] to add [200px 250px] at (0.25) should be [125px 175px]assert_true: 'from' value should be supported expected true got false
    at Test.<anonymous> (https://not-wpt.live/css/support/interpolation-testcommon.js:446:13)
    at Test.step (https://not-wpt.live/resources/testharness.js:2638:25)
    at test (https://not-wpt.live/resources/testharness.js:633:30)
    at target.measure (https://not-wpt.live/css/support/interpolation-testcommon.js:443:9)
    at create_tests (https://not-wpt.live/css/support/interpolation-testcommon.js:510:14)
Asserts run
Fail
assert_true(false, "'from' value should be supported")
    at Test.<anonymous> ( /css/support/interpolation-testcommon.js:446:13)
FailCompositing: property <mask-border-width> underlying [10 20] from add [100px 150px] to add [200px 250px] at (0.5) should be [150px 200px]assert_true: 'from' value should be supported expected true got false
    at Test.<anonymous> (https://not-wpt.live/css/support/interpolation-testcommon.js:446:13)
    at Test.step (https://not-wpt.live/resources/testharness.js:2638:25)
    at test (https://not-wpt.live/resources/testharness.js:633:30)
    at target.measure (https://not-wpt.live/css/support/interpolation-testcommon.js:443:9)
    at create_tests (https://not-wpt.live/css/support/interpolation-testcommon.js:510:14)
Asserts run
Fail
assert_true(false, "'from' value should be supported")
    at Test.<anonymous> ( /css/support/interpolation-testcommon.js:446:13)
FailCompositing: property <mask-border-width> underlying [10 20] from add [100px 150px] to add [200px 250px] at (0.75) should be [175px 225px]assert_true: 'from' value should be supported expected true got false
    at Test.<anonymous> (https://not-wpt.live/css/support/interpolation-testcommon.js:446:13)
    at Test.step (https://not-wpt.live/resources/testharness.js:2638:25)
    at test (https://not-wpt.live/resources/testharness.js:633:30)
    at target.measure (https://not-wpt.live/css/support/interpolation-testcommon.js:443:9)
    at create_tests (https://not-wpt.live/css/support/interpolation-testcommon.js:510:14)
Asserts run
Fail
assert_true(false, "'from' value should be supported")
    at Test.<anonymous> ( /css/support/interpolation-testcommon.js:446:13)
FailCompositing: property <mask-border-width> underlying [10 20] from add [100px 150px] to add [200px 250px] at (1) should be [200px 250px]assert_true: 'from' value should be supported expected true got false
    at Test.<anonymous> (https://not-wpt.live/css/support/interpolation-testcommon.js:446:13)
    at Test.step (https://not-wpt.live/resources/testharness.js:2638:25)
    at test (https://not-wpt.live/resources/testharness.js:633:30)
    at target.measure (https://not-wpt.live/css/support/interpolation-testcommon.js:443:9)
    at create_tests (https://not-wpt.live/css/support/interpolation-testcommon.js:510:14)
Asserts run
Fail
assert_true(false, "'from' value should be supported")
    at Test.<anonymous> ( /css/support/interpolation-testcommon.js:446:13)
FailCompositing: property <mask-border-width> underlying [10 20] from add [100px 150px] to add [200px 250px] at (1.25) should be [225px 275px]assert_true: 'from' value should be supported expected true got false
    at Test.<anonymous> (https://not-wpt.live/css/support/interpolation-testcommon.js:446:13)
    at Test.step (https://not-wpt.live/resources/testharness.js:2638:25)
    at test (https://not-wpt.live/resources/testharness.js:633:30)
    at target.measure (https://not-wpt.live/css/support/interpolation-testcommon.js:443:9)
    at create_tests (https://not-wpt.live/css/support/interpolation-testcommon.js:510:14)
Asserts run
Fail
assert_true(false, "'from' value should be supported")
    at Test.<anonymous> ( /css/support/interpolation-testcommon.js:446:13)
FailCompositing: property <mask-border-width> underlying [10 20] from add [100 150px] to add [200% 250] at (-0.25) should be [100 150px]assert_true: 'from' value should be supported expected true got false
    at Test.<anonymous> (https://not-wpt.live/css/support/interpolation-testcommon.js:446:13)
    at Test.step (https://not-wpt.live/resources/testharness.js:2638:25)
    at test (https://not-wpt.live/resources/testharness.js:633:30)
    at target.measure (https://not-wpt.live/css/support/interpolation-testcommon.js:443:9)
    at create_tests (https://not-wpt.live/css/support/interpolation-testcommon.js:510:14)
Asserts run
Fail
assert_true(false, "'from' value should be supported")
    at Test.<anonymous> ( /css/support/interpolation-testcommon.js:446:13)
FailCompositing: property <mask-border-width> underlying [10 20] from add [100 150px] to add [200% 250] at (0) should be [100 150px]assert_true: 'from' value should be supported expected true got false
    at Test.<anonymous> (https://not-wpt.live/css/support/interpolation-testcommon.js:446:13)
    at Test.step (https://not-wpt.live/resources/testharness.js:2638:25)
    at test (https://not-wpt.live/resources/testharness.js:633:30)
    at target.measure (https://not-wpt.live/css/support/interpolation-testcommon.js:443:9)
    at create_tests (https://not-wpt.live/css/support/interpolation-testcommon.js:510:14)
Asserts run
Fail
assert_true(false, "'from' value should be supported")
    at Test.<anonymous> ( /css/support/interpolation-testcommon.js:446:13)
FailCompositing: property <mask-border-width> underlying [10 20] from add [100 150px] to add [200% 250] at (0.25) should be [100 150px]assert_true: 'from' value should be supported expected true got false
    at Test.<anonymous> (https://not-wpt.live/css/support/interpolation-testcommon.js:446:13)
    at Test.step (https://not-wpt.live/resources/testharness.js:2638:25)
    at test (https://not-wpt.live/resources/testharness.js:633:30)
    at target.measure (https://not-wpt.live/css/support/interpolation-testcommon.js:443:9)
    at create_tests (https://not-wpt.live/css/support/interpolation-testcommon.js:510:14)
Asserts run
Fail
assert_true(false, "'from' value should be supported")
    at Test.<anonymous> ( /css/support/interpolation-testcommon.js:446:13)
FailCompositing: property <mask-border-width> underlying [10 20] from add [100 150px] to add [200% 250] at (0.5) should be [200% 250]assert_true: 'from' value should be supported expected true got false
    at Test.<anonymous> (https://not-wpt.live/css/support/interpolation-testcommon.js:446:13)
    at Test.step (https://not-wpt.live/resources/testharness.js:2638:25)
    at test (https://not-wpt.live/resources/testharness.js:633:30)
    at target.measure (https://not-wpt.live/css/support/interpolation-testcommon.js:443:9)
    at create_tests (https://not-wpt.live/css/support/interpolation-testcommon.js:510:14)
Asserts run
Fail
assert_true(false, "'from' value should be supported")
    at Test.<anonymous> ( /css/support/interpolation-testcommon.js:446:13)
FailCompositing: property <mask-border-width> underlying [10 20] from add [100 150px] to add [200% 250] at (0.75) should be [200% 250]assert_true: 'from' value should be supported expected true got false
    at Test.<anonymous> (https://not-wpt.live/css/support/interpolation-testcommon.js:446:13)
    at Test.step (https://not-wpt.live/resources/testharness.js:2638:25)
    at test (https://not-wpt.live/resources/testharness.js:633:30)
    at target.measure (https://not-wpt.live/css/support/interpolation-testcommon.js:443:9)
    at create_tests (https://not-wpt.live/css/support/interpolation-testcommon.js:510:14)
Asserts run
Fail
assert_true(false, "'from' value should be supported")
    at Test.<anonymous> ( /css/support/interpolation-testcommon.js:446:13)
FailCompositing: property <mask-border-width> underlying [10 20] from add [100 150px] to add [200% 250] at (1) should be [200% 250]assert_true: 'from' value should be supported expected true got false
    at Test.<anonymous> (https://not-wpt.live/css/support/interpolation-testcommon.js:446:13)
    at Test.step (https://not-wpt.live/resources/testharness.js:2638:25)
    at test (https://not-wpt.live/resources/testharness.js:633:30)
    at target.measure (https://not-wpt.live/css/support/interpolation-testcommon.js:443:9)
    at create_tests (https://not-wpt.live/css/support/interpolation-testcommon.js:510:14)
Asserts run
Fail
assert_true(false, "'from' value should be supported")
    at Test.<anonymous> ( /css/support/interpolation-testcommon.js:446:13)
FailCompositing: property <mask-border-width> underlying [10 20] from add [100 150px] to add [200% 250] at (1.25) should be [200% 250]assert_true: 'from' value should be supported expected true got false
    at Test.<anonymous> (https://not-wpt.live/css/support/interpolation-testcommon.js:446:13)
    at Test.step (https://not-wpt.live/resources/testharness.js:2638:25)
    at test (https://not-wpt.live/resources/testharness.js:633:30)
    at target.measure (https://not-wpt.live/css/support/interpolation-testcommon.js:443:9)
    at create_tests (https://not-wpt.live/css/support/interpolation-testcommon.js:510:14)
Asserts run
Fail
assert_true(false, "'from' value should be supported")
    at Test.<anonymous> ( /css/support/interpolation-testcommon.js:446:13)