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* test(assert): improve test coverage * chore: format * chore: lint * nits --------- Co-authored-by: Asher Gomez <ashersaupingomez@gmail.com>
43 lines
1.1 KiB
TypeScript
43 lines
1.1 KiB
TypeScript
// Copyright 2018-2024 the Deno authors. All rights reserved. MIT license.
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import {
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assertEquals,
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assertExists,
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AssertionError,
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assertThrows,
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} from "./mod.ts";
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Deno.test("assertExists() matches values that are not null or undefined", () => {
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assertExists("Denosaurus");
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assertExists(false);
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assertExists(0);
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assertExists("");
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assertExists(-0);
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assertExists(0);
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assertExists(NaN);
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const value = new URLSearchParams({ value: "test" }).get("value");
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assertExists(value);
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assertEquals(value.length, 4);
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});
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Deno.test("assertExists() throws when value is null or undefined", () => {
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assertThrows(
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() => assertExists(undefined),
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AssertionError,
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'Expected actual: "undefined" to not be null or undefined.',
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);
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assertThrows(
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() => assertExists(null),
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AssertionError,
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'Expected actual: "null" to not be null or undefined.',
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);
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});
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Deno.test("assertExists() throws with custom message", () => {
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assertThrows(
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() => assertExists(undefined, "CUSTOM MESSAGE"),
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AssertionError,
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'Expected actual: "undefined" to not be null or undefined: CUSTOM MESSAGE',
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);
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});
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