This is a testharness.js-based test.
[FAIL] Can set 'stop-opacity' to a percent: 0%
Failed to execute 'set' on 'StylePropertyMap': Invalid type for property
[FAIL] Can set 'stop-opacity' to a percent: -3.14%
Failed to execute 'set' on 'StylePropertyMap': Invalid type for property
[FAIL] Can set 'stop-opacity' to a percent: 3.14%
Failed to execute 'set' on 'StylePropertyMap': Invalid type for property
[FAIL] Can set 'stop-opacity' to a percent: calc(0% + 0%)
Failed to execute 'set' on 'StylePropertyMap': Invalid type for property
Harness: the test ran to completion.