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eachSync.test.js
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eachSync.test.js
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const { eachSync } = require("../src/datamix");
const sinon = require("sinon");
describe("eachSync", () => {
it("handles arrays", async function () {
let calls = [];
await eachSync([5, 10, 15], async (v, i, a) => {
// Each call is shorter so we can test that it's made in correct order
let res = await new Promise(resolve => setTimeout(() => resolve([v, i, a]), 15 - v))
calls.push(res);
});
// Checking that calls were registered in index order
expect(calls).toStrictEqual([
[5, 0, [5, 10, 15]],
[10, 1, [5, 10, 15]],
[15, 2, [5, 10, 15]]
]);
});
it("handles objects", async function () {
let calls = [];
await eachSync({10: "foo", 5: "bar", 15: "baz"}, async (v, k, o) => {
// Each call is shorter so we can test that it's made in correct order
let res = await new Promise(resolve => setTimeout(() => resolve([v, k, o]), 15 - k))
calls.push(res);
});
// Checking that calls were registered in index order
expect(calls).toStrictEqual([
["bar", "5", {"10": "foo", "5": "bar", "15": "baz"}],
["foo", "10", {"10": "foo", "5": "bar", "15": "baz"}],
["baz", "15", {"10": "foo", "5": "bar", "15": "baz"}],
]);
});
it("ignores nil data", async function () {
let calls = [];
await eachSync(undefined, async (v, k, o) => {
// Each call is shorter so we can test that it's made in correct order
let res = await new Promise(resolve => setTimeout(() => resolve([v, k, o]), 15 - v))
calls.push(res);
});
await eachSync(null, async (v, k, o) => {
// Each call is shorter so we can test that it's made in correct order
let res = await new Promise(resolve => setTimeout(() => resolve([v, k, o]), 15 - v))
calls.push(res);
});
// Checking that calls were made in order
expect(calls).toStrictEqual([]);
});
});