expect(dedupe("\x7f")).toBe("\x7f");

});

it("treats ASCII BS as backspace when it is the first event", () => {

const { dedupe, advance } = createTimedDedupe();

expect(dedupe("\x08")).toBe("\x08");

advance(1);

expect(dedupe("\x7f")).toBe("");

});

it("never suppresses non-backspace keys", () => {

const dedupe = createBackspaceDeduper();

expect(dedupe("a")).toBe("a");