:bug: fix unit tests

1 files changed, 19 insertions, 0 deletions

diff --git a/util/tests/setupJest.js b/util/tests/setupJest.js
new file mode 100644

index 00000000..551d2be5
--- /dev/null
+++ b/util/tests/setupJest.js
@@ -0,0 +1,19 @@
+const { performance } = require("perf_hooks");
+
+global.expect.extend({
+	toBeFasterThan: async (func, target) => {
+		const start = performance.now();
+		var error;
+		try {
+			await func();
+		} catch (e) {
+			error = e.toString();
+		}
+		const time = performance.now() - start;
+
+		return {
+			pass: time < target && !error,
+			message: () => error || `${func.name} took ${time}ms of maximum ${target}`,
+		};
+	},
+});