@@ -0,0 +1,526 @@
+package org.realityforge.arez.api2;%0A%0Aimport javax.annotation.Nonnull;%0Aimport javax.annotation.Nullable;%0A%0Aclass TestObservable%0A  extends Observable%0A%7B%0A  public TestObservable( @Nonnull final ArezContext context,%0A                         @Nullable final String name )%0A  %7B%0A    super( context, name );%0A  %7D%0A%0A  public TestObservable( @Nonnull final ArezContext context,%0A                         @Nullable final String name,%0A                         @Nullable final Observer observer )%0A  %7B%0A    super( context, name, observer );%0A  %7D%0A%7D%0A

Introduce a basic observable for testing