[idlharness.html]
  [Subscriber interface: existence and properties of interface object]
    expected: FAIL

  [Subscriber interface object length]
    expected: FAIL

  [Subscriber interface object name]
    expected: FAIL

  [Subscriber interface: existence and properties of interface prototype object]
    expected: FAIL

  [Subscriber interface: existence and properties of interface prototype object's "constructor" property]
    expected: FAIL

  [Subscriber interface: existence and properties of interface prototype object's @@unscopables property]
    expected: FAIL

  [Subscriber interface: operation next(any)]
    expected: FAIL

  [Subscriber interface: operation error(any)]
    expected: FAIL

  [Subscriber interface: operation complete()]
    expected: FAIL

  [Subscriber interface: operation addTeardown(VoidFunction)]
    expected: FAIL

  [Subscriber interface: attribute active]
    expected: FAIL

  [Subscriber interface: attribute signal]
    expected: FAIL

  [Subscriber must be primary interface of (() => { let s = null; new Observable(_s => s = _s).subscribe({}); return s })()]
    expected: FAIL

  [Stringification of (() => { let s = null; new Observable(_s => s = _s).subscribe({}); return s })()]
    expected: FAIL

  [Subscriber interface: (() => { let s = null; new Observable(_s => s = _s).subscribe({}); return s })() must inherit property "next(any)" with the proper type]
    expected: FAIL

  [Subscriber interface: calling next(any) on (() => { let s = null; new Observable(_s => s = _s).subscribe({}); return s })() with too few arguments must throw TypeError]
    expected: FAIL

  [Subscriber interface: (() => { let s = null; new Observable(_s => s = _s).subscribe({}); return s })() must inherit property "error(any)" with the proper type]
    expected: FAIL

  [Subscriber interface: calling error(any) on (() => { let s = null; new Observable(_s => s = _s).subscribe({}); return s })() with too few arguments must throw TypeError]
    expected: FAIL

  [Subscriber interface: (() => { let s = null; new Observable(_s => s = _s).subscribe({}); return s })() must inherit property "complete()" with the proper type]
    expected: FAIL

  [Subscriber interface: (() => { let s = null; new Observable(_s => s = _s).subscribe({}); return s })() must inherit property "addTeardown(VoidFunction)" with the proper type]
    expected: FAIL

  [Subscriber interface: calling addTeardown(VoidFunction) on (() => { let s = null; new Observable(_s => s = _s).subscribe({}); return s })() with too few arguments must throw TypeError]
    expected: FAIL

  [Subscriber interface: (() => { let s = null; new Observable(_s => s = _s).subscribe({}); return s })() must inherit property "active" with the proper type]
    expected: FAIL

  [Subscriber interface: (() => { let s = null; new Observable(_s => s = _s).subscribe({}); return s })() must inherit property "signal" with the proper type]
    expected: FAIL

  [Observable interface: existence and properties of interface object]
    expected: FAIL

  [Observable interface object length]
    expected: FAIL

  [Observable interface object name]
    expected: FAIL

  [Observable interface: existence and properties of interface prototype object]
    expected: FAIL

  [Observable interface: existence and properties of interface prototype object's "constructor" property]
    expected: FAIL

  [Observable interface: existence and properties of interface prototype object's @@unscopables property]
    expected: FAIL

  [Observable interface: operation subscribe(optional ObserverUnion, optional SubscribeOptions)]
    expected: FAIL

  [Observable must be primary interface of new Observable(() => {})]
    expected: FAIL

  [Stringification of new Observable(() => {})]
    expected: FAIL

  [Observable interface: new Observable(() => {}) must inherit property "subscribe(optional ObserverUnion, optional SubscribeOptions)" with the proper type]
    expected: FAIL

  [Observable interface: calling subscribe(optional ObserverUnion, optional SubscribeOptions) on new Observable(() => {}) with too few arguments must throw TypeError]
    expected: FAIL