This is a testharness.js-based test.
Found 30 FAIL, 0 TIMEOUT, 0 NOTRUN.
[FAIL] PaymentManager must be primary interface of paymentManager
  assert_own_property: self does not have own property "PaymentManager" expected property "PaymentManager" missing
[FAIL] PaymentManager interface: paymentManager must not have property "userHint"
  assert_false: expected false got true
[FAIL] PaymentManager interface: paymentManager must not have property "enableDelegations"
  assert_false: expected false got true
[FAIL] CanMakePaymentEvent interface object length
  assert_equals: wrong value for CanMakePaymentEvent.length expected 1 but got 2
[FAIL] CanMakePaymentEvent must be primary interface of new CanMakePaymentEvent("type")
  assert_equals: Unexpected exception when evaluating object expected null but got object "TypeError: Failed to construct 'CanMakePaymentEvent': 2 arguments required, but only 1 present."
[FAIL] Stringification of new CanMakePaymentEvent("type")
  assert_equals: Unexpected exception when evaluating object expected null but got object "TypeError: Failed to construct 'CanMakePaymentEvent': 2 arguments required, but only 1 present."
[FAIL] CanMakePaymentEvent interface: new CanMakePaymentEvent("type") must inherit property "respondWith(Promise<boolean>)" with the proper type
  assert_equals: Unexpected exception when evaluating object expected null but got object "TypeError: Failed to construct 'CanMakePaymentEvent': 2 arguments required, but only 1 present."
[FAIL] CanMakePaymentEvent interface: calling respondWith(Promise<boolean>) on new CanMakePaymentEvent("type") with too few arguments must throw TypeError
  assert_equals: Unexpected exception when evaluating object expected null but got object "TypeError: Failed to construct 'CanMakePaymentEvent': 2 arguments required, but only 1 present."
[FAIL] PaymentRequestEvent interface object length
  assert_equals: wrong value for PaymentRequestEvent.length expected 1 but got 2
[FAIL] PaymentRequestEvent interface: operation changeShippingAddress(optional AddressInit)
  assert_equals: property has wrong .length expected 0 but got 1
[FAIL] PaymentRequestEvent must be primary interface of new PaymentRequestEvent("type")
  assert_equals: Unexpected exception when evaluating object expected null but got object "TypeError: Failed to construct 'PaymentRequestEvent': 2 arguments required, but only 1 present."
[FAIL] Stringification of new PaymentRequestEvent("type")
  assert_equals: Unexpected exception when evaluating object expected null but got object "TypeError: Failed to construct 'PaymentRequestEvent': 2 arguments required, but only 1 present."
[FAIL] PaymentRequestEvent interface: new PaymentRequestEvent("type") must inherit property "topOrigin" with the proper type
  assert_equals: Unexpected exception when evaluating object expected null but got object "TypeError: Failed to construct 'PaymentRequestEvent': 2 arguments required, but only 1 present."
[FAIL] PaymentRequestEvent interface: new PaymentRequestEvent("type") must inherit property "paymentRequestOrigin" with the proper type
  assert_equals: Unexpected exception when evaluating object expected null but got object "TypeError: Failed to construct 'PaymentRequestEvent': 2 arguments required, but only 1 present."
[FAIL] PaymentRequestEvent interface: new PaymentRequestEvent("type") must inherit property "paymentRequestId" with the proper type
  assert_equals: Unexpected exception when evaluating object expected null but got object "TypeError: Failed to construct 'PaymentRequestEvent': 2 arguments required, but only 1 present."
[FAIL] PaymentRequestEvent interface: new PaymentRequestEvent("type") must inherit property "methodData" with the proper type
  assert_equals: Unexpected exception when evaluating object expected null but got object "TypeError: Failed to construct 'PaymentRequestEvent': 2 arguments required, but only 1 present."
[FAIL] PaymentRequestEvent interface: new PaymentRequestEvent("type") must inherit property "total" with the proper type
  assert_equals: Unexpected exception when evaluating object expected null but got object "TypeError: Failed to construct 'PaymentRequestEvent': 2 arguments required, but only 1 present."
[FAIL] PaymentRequestEvent interface: new PaymentRequestEvent("type") must inherit property "modifiers" with the proper type
  assert_equals: Unexpected exception when evaluating object expected null but got object "TypeError: Failed to construct 'PaymentRequestEvent': 2 arguments required, but only 1 present."
[FAIL] PaymentRequestEvent interface: new PaymentRequestEvent("type") must inherit property "paymentOptions" with the proper type
  assert_equals: Unexpected exception when evaluating object expected null but got object "TypeError: Failed to construct 'PaymentRequestEvent': 2 arguments required, but only 1 present."
[FAIL] PaymentRequestEvent interface: new PaymentRequestEvent("type") must inherit property "shippingOptions" with the proper type
  assert_equals: Unexpected exception when evaluating object expected null but got object "TypeError: Failed to construct 'PaymentRequestEvent': 2 arguments required, but only 1 present."
[FAIL] PaymentRequestEvent interface: new PaymentRequestEvent("type") must inherit property "openWindow(USVString)" with the proper type
  assert_equals: Unexpected exception when evaluating object expected null but got object "TypeError: Failed to construct 'PaymentRequestEvent': 2 arguments required, but only 1 present."
[FAIL] PaymentRequestEvent interface: calling openWindow(USVString) on new PaymentRequestEvent("type") with too few arguments must throw TypeError
  assert_equals: Unexpected exception when evaluating object expected null but got object "TypeError: Failed to construct 'PaymentRequestEvent': 2 arguments required, but only 1 present."
[FAIL] PaymentRequestEvent interface: new PaymentRequestEvent("type") must inherit property "changePaymentMethod(DOMString, optional object?)" with the proper type
  assert_equals: Unexpected exception when evaluating object expected null but got object "TypeError: Failed to construct 'PaymentRequestEvent': 2 arguments required, but only 1 present."
[FAIL] PaymentRequestEvent interface: calling changePaymentMethod(DOMString, optional object?) on new PaymentRequestEvent("type") with too few arguments must throw TypeError
  assert_equals: Unexpected exception when evaluating object expected null but got object "TypeError: Failed to construct 'PaymentRequestEvent': 2 arguments required, but only 1 present."
[FAIL] PaymentRequestEvent interface: new PaymentRequestEvent("type") must inherit property "changeShippingAddress(optional AddressInit)" with the proper type
  assert_equals: Unexpected exception when evaluating object expected null but got object "TypeError: Failed to construct 'PaymentRequestEvent': 2 arguments required, but only 1 present."
[FAIL] PaymentRequestEvent interface: calling changeShippingAddress(optional AddressInit) on new PaymentRequestEvent("type") with too few arguments must throw TypeError
  assert_equals: Unexpected exception when evaluating object expected null but got object "TypeError: Failed to construct 'PaymentRequestEvent': 2 arguments required, but only 1 present."
[FAIL] PaymentRequestEvent interface: new PaymentRequestEvent("type") must inherit property "changeShippingOption(DOMString)" with the proper type
  assert_equals: Unexpected exception when evaluating object expected null but got object "TypeError: Failed to construct 'PaymentRequestEvent': 2 arguments required, but only 1 present."
[FAIL] PaymentRequestEvent interface: calling changeShippingOption(DOMString) on new PaymentRequestEvent("type") with too few arguments must throw TypeError
  assert_equals: Unexpected exception when evaluating object expected null but got object "TypeError: Failed to construct 'PaymentRequestEvent': 2 arguments required, but only 1 present."
[FAIL] PaymentRequestEvent interface: new PaymentRequestEvent("type") must inherit property "respondWith(Promise<PaymentHandlerResponse>)" with the proper type
  assert_equals: Unexpected exception when evaluating object expected null but got object "TypeError: Failed to construct 'PaymentRequestEvent': 2 arguments required, but only 1 present."
[FAIL] PaymentRequestEvent interface: calling respondWith(Promise<PaymentHandlerResponse>) on new PaymentRequestEvent("type") with too few arguments must throw TypeError
  assert_equals: Unexpected exception when evaluating object expected null but got object "TypeError: Failed to construct 'PaymentRequestEvent': 2 arguments required, but only 1 present."
Harness: the test ran to completion.