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denoland-deno/std/flags/default_bool_test.ts

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TypeScript
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// Copyright 2018-2020 the Deno authors. All rights reserved. MIT license.
import { assertEquals } from "../testing/asserts.ts";
import { parse } from "./mod.ts";
Deno.test(function booleanDefaultTrue(): void {
const argv = parse([], {
boolean: "sometrue",
default: { sometrue: true }
});
assertEquals(argv.sometrue, true);
});
Deno.test(function booleanDefaultFalse(): void {
const argv = parse([], {
boolean: "somefalse",
default: { somefalse: false }
});
assertEquals(argv.somefalse, false);
});
Deno.test(function booleanDefaultNull(): void {
const argv = parse([], {
boolean: "maybe",
default: { maybe: null }
});
assertEquals(argv.maybe, null);
const argv2 = parse(["--maybe"], {
boolean: "maybe",
default: { maybe: null }
});
assertEquals(argv2.maybe, true);
});