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[READ-ONLY] Mirror of https://github.com/openstatusHQ/openstatus. 🫖 Status page with uptime monitoring & API monitoring as code 🫖 openstatus.dev
bun drizzle-orm monitoring monitoring-as-code nextjs observability on-call open-source shadcn-ui status-page statuspage synthetic-monitoring tinybird turso uptime uptime-checker uptime-monitor
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2.5 kB · 82 lines
TypeScript
1234567891011121314151617181920212223242526272829303132333435363738394041424344454647484950515253545556575859606162636465666768697071727374757677787980818283import { expect } from "@std/expect";import { describe, it } from "@std/testing/bdd";
import { composeEventHandlers, composeRefs } from "./composition";
describe("composeEventHandlers", () => { it("runs the original handler before ours", () => { const calls: string[] = []; const handler = composeEventHandlers( () => calls.push("original"), () => calls.push("ours"), ); handler(new Event("click")); expect(calls).toEqual(["original", "ours"]); });
it("skips ours when the original prevents default", () => { let called = false; const handler = composeEventHandlers( (e: Event) => e.preventDefault(), () => { called = true; }, ); handler(new Event("click", { cancelable: true })); expect(called).toBe(false); });
it("runs ours anyway when the check is disabled", () => { let called = false; const handler = composeEventHandlers( (e: Event) => e.preventDefault(), () => { called = true; }, { checkForDefaultPrevented: false }, ); handler(new Event("click", { cancelable: true })); expect(called).toBe(true); });
it("tolerates missing handlers", () => { expect(() => composeEventHandlers()(new Event("click"))).not.toThrow(); });});
describe("composeRefs", () => { it("assigns object refs and calls callback refs", () => { const objectRef = { current: null as string | null }; let callbackValue: string | null = null; const ref = composeRefs<string | null>(objectRef, (v) => { callbackValue = v; }); ref("node"); expect(objectRef.current).toBe("node"); expect(callbackValue).toBe("node"); });
it("ignores null and undefined refs", () => { const ref = composeRefs<string>(null, undefined); expect(ref("node")).toBeUndefined(); });
it("returns no cleanup when no ref returns one", () => { const ref = composeRefs<string>({ current: null }, () => {}); expect(ref("node")).toBeUndefined(); });
it("runs ref cleanups and nulls the other refs on cleanup", () => { const objectRef = { current: null as string | null }; let cleaned = false; const ref = composeRefs<string | null>(objectRef, () => () => { cleaned = true; }); const cleanup = ref("node"); expect(objectRef.current).toBe("node"); expect(typeof cleanup).toBe("function"); (cleanup as () => void)(); expect(cleaned).toBe(true); expect(objectRef.current).toBeNull(); });});