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import { describe, it, expect } from "bun:test";
import {
throws,
assert,
strictEqual,
createCallCheckCtx,
createDoneDotAll,
} from "./node-test-helpers";
describe("NodeTestHelpers.throws()", () => {
it("should pass when the function throws", () => {
throws(() => {
throw new Error("THROWN!");
});
});
it("should fail when the function doesn't throw", () => {
let err;
try {
throws(() => {}, Error);
} catch (e) {
err = e;
}
expect(err instanceof Error).toBe(true);
});
});
describe("NodeTestHelpers.assert()", () => {
it("should pass when the provided value is true", () => {
assert(true);
});
it("should fail when the provided value is false", () => {
let err;
try {
assert(false);
} catch (e) {
err = e;
}
expect(err instanceof Error).toBe(true);
});
});
describe("NodeTestHelpers.strictEqual()", () => {
it("should pass when the provided values are deeply equal", () => {
strictEqual(1, 1);
strictEqual("hello", "hello");
const testing = { hello: "world" };
const testing2 = testing;
testing2.hello = "bla";
strictEqual(testing, testing2);
strictEqual(NaN, NaN);
strictEqual(Infinity, Infinity);
strictEqual(-Infinity, -Infinity);
strictEqual(null, null);
strictEqual(undefined, undefined);
});
it("should fail when the provided values are not deeply equal", () => {
let err = null;
try {
strictEqual(1, 5);
} catch (e) {
err = e;
}
expect(err instanceof Error).toBe(true);
err = null;
try {
strictEqual({ foo: "bar" }, { foo: "bar" });
} catch (e) {
err = e;
}
expect(err instanceof Error).toBe(true);
err = null;
try {
strictEqual("1", 1);
} catch (e) {
err = e;
}
expect(err instanceof Error).toBe(true);
err = null;
const obj1 = { foo: "bar" };
const obj2 = JSON.parse(JSON.stringify(obj1));
try {
strictEqual(obj1, obj2);
} catch (e) {
err = e;
}
expect(err instanceof Error).toBe(true);
});
});
describe("NodeTestHelpers.createCallCheckCtx", () => {
it("should pass when all mustCall marked callbacks have been called", (done) => {
const { mustCall } = createCallCheckCtx(done);
const fn1 = mustCall(() => {});
const fn2 = mustCall(() => {});
fn1();
fn2();
});
it("should fail when all mustCall marked callbacks have NOT been called", (done) => {
const mockDone = (result) => {
expect(result instanceof Error).toBe(true);
done();
};
const { mustCall } = createCallCheckCtx(mockDone, 600);
const fn1 = mustCall(() => {});
mustCall(() => {});
fn1();
});
it("should allow us to get the args of the wrapped callback from mustCall", (done) => {
const { mustCall } = createCallCheckCtx(done);
const fn1 = mustCall((arg1, arg2) => {
expect(arg1).toBe("hello");
expect(arg2).toBe("world");
});
fn1("hello", "world");
});
});
describe("NodeTestHelpers.createDoneDotAll()", () => {
it("should pass when all dones have been called", (done) => {
const createDone = createDoneDotAll(done);
const done1 = createDone(600);
const done2 = createDone(600);
setTimeout(() => done1(), 300);
setTimeout(() => done2(), 450);
});
it("should fail when all dones have NOT been called before timeout", (done) => {
const mockDone = (result) => {
expect(result instanceof Error).toBe(true);
done();
};
const createDone = createDoneDotAll(mockDone);
const done1 = createDone(400);
createDone(400);
setTimeout(() => done1(), 200);
});
it("should allow us to combine mustCall and multiple dones", (done) => {
const createDone = createDoneDotAll(done);
const { mustCall } = createCallCheckCtx(createDone(600));
const done1 = createDone(600);
const done2 = createDone(600);
const fn1 = mustCall(() => {});
const fn2 = mustCall(() => {});
setTimeout(() => done1(), 300);
setTimeout(() => done2(), 450);
setTimeout(() => fn1(), 200);
setTimeout(() => fn2(), 200);
});
it("should fail if a done is called with an error", (done) => {
const mockDone = (result) => {
expect(result instanceof Error).toBe(true);
done();
};
const createDone = createDoneDotAll(mockDone);
const done1 = createDone(600);
const done2 = createDone(600);
setTimeout(() => done1(), 300);
setTimeout(() => done2(new Error("ERROR!")), 450);
});
});
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