deno.land / std@0.224.0 / assert / assert_strict_equals_test.ts

assert_strict_equals_test.ts
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// Copyright 2018-2024 the Deno authors. All rights reserved. MIT license.import { AssertionError, assertStrictEquals, assertThrows } from "./mod.ts";
Deno.test({ name: "strict types test", fn() { const x = { number: 2 };
const y = x as Record<never, never>; const z = x as unknown;
// y.number; // ~~~~~~ // Property 'number' does not exist on type 'Record<never, never>'.deno-ts(2339)
assertStrictEquals(y, x); y.number; // ok
// z.number; // ~ // Object is of type 'unknown'.deno-ts(2571)
assertStrictEquals(z, x); z.number; // ok },});
Deno.test({ name: "strict pass case", fn() { assertStrictEquals(true, true); assertStrictEquals(10, 10); assertStrictEquals("abc", "abc"); assertStrictEquals(NaN, NaN);
const xs = [1, false, "foo"]; const ys = xs; assertStrictEquals(xs, ys);
const x = { a: 1 }; const y = x; assertStrictEquals(x, y); },});
Deno.test({ name: "strict failed with structure diff", fn() { assertThrows( () => assertStrictEquals({ a: 1, b: 2 }, { a: 1, c: [3] }), AssertionError, ` { a: 1,+ c: [+ 3,+ ],- b: 2, }`, ); },});
Deno.test({ name: "strict failed with reference diff", fn() { assertThrows( () => assertStrictEquals({ a: 1, b: 2 }, { a: 1, b: 2 }), AssertionError, `Values have the same structure but are not reference-equal.
{ a: 1, b: 2, }`, ); },});
Deno.test({ name: "strict failed with custom msg", fn() { assertThrows( () => assertStrictEquals({ a: 1 }, { a: 1 }, "CUSTOM MESSAGE"), AssertionError, `Values have the same structure but are not reference-equal: CUSTOM MESSAGE
{ a: 1, }`, ); },});
std

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Tagged at
6 months ago