This is a testharness.js-based test.
[FAIL] GeolocationSensor interface: existence and properties of interface object
assert_own_property: self does not have own property "GeolocationSensor" expected property "GeolocationSensor" missing
[FAIL] GeolocationSensor interface object length
assert_own_property: self does not have own property "GeolocationSensor" expected property "GeolocationSensor" missing
[FAIL] GeolocationSensor interface object name
assert_own_property: self does not have own property "GeolocationSensor" expected property "GeolocationSensor" missing
[FAIL] GeolocationSensor interface: existence and properties of interface prototype object
assert_own_property: self does not have own property "GeolocationSensor" expected property "GeolocationSensor" missing
[FAIL] GeolocationSensor interface: existence and properties of interface prototype object's "constructor" property
assert_own_property: self does not have own property "GeolocationSensor" expected property "GeolocationSensor" missing
[FAIL] GeolocationSensor interface: existence and properties of interface prototype object's @@unscopables property
assert_own_property: self does not have own property "GeolocationSensor" expected property "GeolocationSensor" missing
[FAIL] GeolocationSensor interface: operation read(optional ReadOptions)
assert_own_property: self does not have own property "GeolocationSensor" expected property "GeolocationSensor" missing
[FAIL] GeolocationSensor interface: attribute latitude
assert_own_property: self does not have own property "GeolocationSensor" expected property "GeolocationSensor" missing
[FAIL] GeolocationSensor interface: attribute longitude
assert_own_property: self does not have own property "GeolocationSensor" expected property "GeolocationSensor" missing
[FAIL] GeolocationSensor interface: attribute altitude
assert_own_property: self does not have own property "GeolocationSensor" expected property "GeolocationSensor" missing
[FAIL] GeolocationSensor interface: attribute accuracy
assert_own_property: self does not have own property "GeolocationSensor" expected property "GeolocationSensor" missing
[FAIL] GeolocationSensor interface: attribute altitudeAccuracy
assert_own_property: self does not have own property "GeolocationSensor" expected property "GeolocationSensor" missing
[FAIL] GeolocationSensor interface: attribute heading
assert_own_property: self does not have own property "GeolocationSensor" expected property "GeolocationSensor" missing
[FAIL] GeolocationSensor interface: attribute speed
assert_own_property: self does not have own property "GeolocationSensor" expected property "GeolocationSensor" missing
[FAIL] GeolocationSensor must be primary interface of new GeolocationSensor
assert_equals: Unexpected exception when evaluating object expected null but got object "ReferenceError: GeolocationSensor is not defined"
[FAIL] Stringification of new GeolocationSensor
assert_equals: Unexpected exception when evaluating object expected null but got object "ReferenceError: GeolocationSensor is not defined"
[FAIL] GeolocationSensor interface: new GeolocationSensor must inherit property "read(optional ReadOptions)" with the proper type
assert_equals: Unexpected exception when evaluating object expected null but got object "ReferenceError: GeolocationSensor is not defined"
[FAIL] GeolocationSensor interface: calling read(optional ReadOptions) on new GeolocationSensor with too few arguments must throw TypeError
assert_equals: Unexpected exception when evaluating object expected null but got object "ReferenceError: GeolocationSensor is not defined"
[FAIL] GeolocationSensor interface: new GeolocationSensor must inherit property "latitude" with the proper type
assert_equals: Unexpected exception when evaluating object expected null but got object "ReferenceError: GeolocationSensor is not defined"
[FAIL] GeolocationSensor interface: new GeolocationSensor must inherit property "longitude" with the proper type
assert_equals: Unexpected exception when evaluating object expected null but got object "ReferenceError: GeolocationSensor is not defined"
[FAIL] GeolocationSensor interface: new GeolocationSensor must inherit property "altitude" with the proper type
assert_equals: Unexpected exception when evaluating object expected null but got object "ReferenceError: GeolocationSensor is not defined"
[FAIL] GeolocationSensor interface: new GeolocationSensor must inherit property "accuracy" with the proper type
assert_equals: Unexpected exception when evaluating object expected null but got object "ReferenceError: GeolocationSensor is not defined"
[FAIL] GeolocationSensor interface: new GeolocationSensor must inherit property "altitudeAccuracy" with the proper type
assert_equals: Unexpected exception when evaluating object expected null but got object "ReferenceError: GeolocationSensor is not defined"
[FAIL] GeolocationSensor interface: new GeolocationSensor must inherit property "heading" with the proper type
assert_equals: Unexpected exception when evaluating object expected null but got object "ReferenceError: GeolocationSensor is not defined"
[FAIL] GeolocationSensor interface: new GeolocationSensor must inherit property "speed" with the proper type
assert_equals: Unexpected exception when evaluating object expected null but got object "ReferenceError: GeolocationSensor is not defined"
Harness: the test ran to completion.