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import { it, expect } from "bun:test";
it("setTimeout", async () => {
var lastID = -1;
const result = await new Promise((resolve, reject) => {
var numbers = [];
for (let i = 0; i < 10; i++) {
const id = setTimeout(
(...args) => {
numbers.push(i);
if (i === 9) {
resolve(numbers);
}
try {
expect(args.length).toBe(1);
expect(args[0]).toBe("foo");
} catch (err) {
reject(err);
}
},
i,
"foo",
);
expect(id > lastID).toBe(true);
lastID = id;
}
});
for (let j = 0; j < result.length; j++) {
expect(result[j]).toBe(j);
}
expect(result.length).toBe(10);
});
it("clearTimeout", async () => {
var called = false;
const id = setTimeout(() => {
called = true;
expect(false).toBe(true);
}, 1);
clearTimeout(id);
// assert it doesn't crash if you call clearTimeout twice
clearTimeout(id);
await new Promise((resolve, reject) => {
setTimeout(resolve, 10);
});
expect(called).toBe(false);
});
it("setTimeout(() => {}, 0)", async () => {
var called = false;
setTimeout(() => {
called = true;
}, 0);
await new Promise((resolve, reject) => {
setTimeout(() => {
resolve();
}, 10);
});
expect(called).toBe(true);
var ranFirst = -1;
setTimeout(() => {
if (ranFirst === -1) ranFirst = 1;
}, 1);
setTimeout(() => {
if (ranFirst === -1) ranFirst = 0;
}, 0);
await new Promise((resolve, reject) => {
setTimeout(() => {
resolve();
}, 10);
});
expect(ranFirst).toBe(0);
ranFirst = -1;
const id = setTimeout(() => {
ranFirst = 0;
}, 0);
clearTimeout(id);
await new Promise((resolve, reject) => {
setTimeout(() => {
resolve();
}, 10);
});
expect(ranFirst).toBe(-1);
});
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