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=== tests/cases/compiler/conditionalEqualityTestingNullability.ts ===
export type Equals<A1 extends any, A2 extends any> =
>Equals : Equals<A1, A2>
(<A>() => A extends A1 ? 1 : 0) extends (<A>() => A extends A2 ? 1 : 0)
? 1
: 0
interface Foo<T> {
x : () => T
>x : () => T
}
declare const a: Foo<Date>;
>a : Foo<Date>
declare const b: Foo<Date | null>;
>b : Foo<Date | null>
>null : null
//Expected 0, Actual 1
type ShouldBe0 = Equals<typeof a, typeof b>;
>ShouldBe0 : 0
>a : Foo<Date>
>b : Foo<Date | null>
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