assert_equals("percent", "percent", "'actual' unit type must be 'percent' for \"Default duration is 100%\"")
    at assert_percents_approx_equal ( /scroll-animations/scroll-timelines/testcommon.js:118:3)

assert_true(true, "'actual' must be of type CSSNumberish for \"Default duration is 100%\"")
    at assert_percents_approx_equal ( /scroll-animations/scroll-timelines/testcommon.js:120:3)

assert_equals("percent", "percent", "'expected' unit type must be 'percent' for \"Default duration is 100%\"")
    at assert_percents_approx_equal ( /scroll-animations/scroll-timelines/testcommon.js:125:5)

assert_approx_equals(100, 100, 0.125, "values do not match for \"Default duration is 100%\"")
    at assert_percents_approx_equal ( /scroll-animations/scroll-timelines/testcommon.js:127:5)

assert_equals("percent", "percent", "'actual' unit type must be 'percent' for \"Duration is zero when boundaries coincide\"")
    at assert_percents_approx_equal ( /scroll-animations/scroll-timelines/testcommon.js:118:3)

assert_true(true, "'actual' must be of type CSSNumberish for \"Duration is zero when boundaries coincide\"")
    at assert_percents_approx_equal ( /scroll-animations/scroll-timelines/testcommon.js:120:3)

assert_equals("percent", "percent", "'expected' unit type must be 'percent' for \"Duration is zero when boundaries coincide\"")
    at assert_percents_approx_equal ( /scroll-animations/scroll-timelines/testcommon.js:125:5)

assert_approx_equals(0, 0, 0.125, "values do not match for \"Duration is zero when boundaries coincide\"")
    at assert_percents_approx_equal ( /scroll-animations/scroll-timelines/testcommon.js:127:5)

assert_equals("percent", "percent", "'actual' unit type must be 'percent' for \"Duration is zero when start > end\"")
    at assert_percents_approx_equal ( /scroll-animations/scroll-timelines/testcommon.js:118:3)

assert_true(true, "'actual' must be of type CSSNumberish for \"Duration is zero when start > end\"")
    at assert_percents_approx_equal ( /scroll-animations/scroll-timelines/testcommon.js:120:3)

assert_equals("percent", "percent", "'expected' unit type must be 'percent' for \"Duration is zero when start > end\"")
    at assert_percents_approx_equal ( /scroll-animations/scroll-timelines/testcommon.js:125:5)

assert_approx_equals(0, 0, 0.125, "values do not match for \"Duration is zero when start > end\"")
    at assert_percents_approx_equal ( /scroll-animations/scroll-timelines/testcommon.js:127:5)

assert_equals("percent", "percent", "'actual' unit type must be 'percent' for \"Duration is 100% after range reset\"")
    at assert_percents_approx_equal ( /scroll-animations/scroll-timelines/testcommon.js:118:3)

assert_true(true, "'actual' must be of type CSSNumberish for \"Duration is 100% after range reset\"")
    at assert_percents_approx_equal ( /scroll-animations/scroll-timelines/testcommon.js:120:3)

assert_equals("percent", "percent", "'expected' unit type must be 'percent' for \"Duration is 100% after range reset\"")
    at assert_percents_approx_equal ( /scroll-animations/scroll-timelines/testcommon.js:125:5)

assert_approx_equals(100, 100, 0.125, "values do not match for \"Duration is 100% after range reset\"")
    at assert_percents_approx_equal ( /scroll-animations/scroll-timelines/testcommon.js:127:5)

assert_equals("percent", "percent", "'actual' unit type must be 'percent' for \"Duration is 0% after delays sum to 100%\"")
    at assert_percents_approx_equal ( /scroll-animations/scroll-timelines/testcommon.js:118:3)

assert_true(true, "'actual' must be of type CSSNumberish for \"Duration is 0% after delays sum to 100%\"")
    at assert_percents_approx_equal ( /scroll-animations/scroll-timelines/testcommon.js:120:3)

assert_equals("percent", "percent", "'expected' unit type must be 'percent' for \"Duration is 0% after delays sum to 100%\"")
    at assert_percents_approx_equal ( /scroll-animations/scroll-timelines/testcommon.js:125:5)

assert_approx_equals(0, 0, 0.125, "values do not match for \"Duration is 0% after delays sum to 100%\"")
    at assert_percents_approx_equal ( /scroll-animations/scroll-timelines/testcommon.js:127:5)

assert_equals("percent", "percent", "'actual' unit type must be 'percent' for \"Duration is 0% after delays sum to > 100%\"")
    at assert_percents_approx_equal ( /scroll-animations/scroll-timelines/testcommon.js:118:3)

assert_true(true, "'actual' must be of type CSSNumberish for \"Duration is 0% after delays sum to > 100%\"")
    at assert_percents_approx_equal ( /scroll-animations/scroll-timelines/testcommon.js:120:3)

assert_equals("percent", "percent", "'expected' unit type must be 'percent' for \"Duration is 0% after delays sum to > 100%\"")
    at assert_percents_approx_equal ( /scroll-animations/scroll-timelines/testcommon.js:125:5)

assert_approx_equals(0, 0, 0.125, "values do not match for \"Duration is 0% after delays sum to > 100%\"")
    at assert_percents_approx_equal ( /scroll-animations/scroll-timelines/testcommon.js:127:5)

assert_equals("percent", "percent", "'actual' unit type must be 'percent' for \"Duration is 20% if normal range and delays sum to 80%\"")
    at assert_percents_approx_equal ( /scroll-animations/scroll-timelines/testcommon.js:118:3)

assert_true(true, "'actual' must be of type CSSNumberish for \"Duration is 20% if normal range and delays sum to 80%\"")
    at assert_percents_approx_equal ( /scroll-animations/scroll-timelines/testcommon.js:120:3)

assert_equals("percent", "percent", "'expected' unit type must be 'percent' for \"Duration is 20% if normal range and delays sum to 80%\"")
    at assert_percents_approx_equal ( /scroll-animations/scroll-timelines/testcommon.js:125:5)

assert_approx_equals(19.999999999999996, 20, 0.125, "values do not match for \"Duration is 20% if normal range and delays sum to 80%\"")
    at assert_percents_approx_equal ( /scroll-animations/scroll-timelines/testcommon.js:127:5)