deno.land / std@0.166.0 / fmt / bytes_test.ts

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// Copyright 2018-2022 the Deno authors. All rights reserved. MIT license.// Copyright 2014-2021 Sindre Sorhus. All rights reserved. MIT license.// Copyright 2021 Yoshiya Hinosawa. All rights reserved. MIT license.
import { format } from "./bytes.ts";import { assertEquals, assertThrows } from "../testing/asserts.ts";
const parts = new Intl.NumberFormat().formatToParts(1000.1);const decimal = parts.find(({ type }) => type === "decimal")!.value;const group = parts.find(({ type }) => type === "group")!.value;
Deno.test("throws on invalid input", () => { // deno-lint-ignore no-explicit-any assertThrows(() => format("" as any)); // deno-lint-ignore no-explicit-any assertThrows(() => format("1" as any)); assertThrows(() => format(NaN)); // deno-lint-ignore no-explicit-any assertThrows(() => format(true as any)); assertThrows(() => format(Infinity)); assertThrows(() => format(-Infinity)); // deno-lint-ignore no-explicit-any assertThrows(() => format(null as any));});
Deno.test("converts bytes to human readable strings", () => { assertEquals(format(0), "0 B"); assertEquals(format(0.4), "0.4 B"); assertEquals(format(0.7), "0.7 B"); assertEquals(format(10), "10 B"); assertEquals(format(10.1), "10.1 B"); assertEquals(format(999), "999 B"); assertEquals(format(1001), "1 kB"); assertEquals(format(1001), "1 kB"); assertEquals(format(1e16), "10 PB"); assertEquals(format(1e30), "1000000 YB");});
Deno.test("supports negative number", () => { assertEquals(format(-0.4), "-0.4 B"); assertEquals(format(-0.7), "-0.7 B"); assertEquals(format(-10.1), "-10.1 B"); assertEquals(format(-999), "-999 B"); assertEquals(format(-1001), "-1 kB");});
Deno.test("locale option", () => { assertEquals(format(-0.4, { locale: "de" }), "-0,4 B"); assertEquals(format(0.4, { locale: "de" }), "0,4 B"); assertEquals(format(1001, { locale: "de" }), "1 kB"); assertEquals(format(10.1, { locale: "de" }), "10,1 B"); assertEquals(format(1e30, { locale: "de" }), "1.000.000 YB");
assertEquals(format(-0.4, { locale: "en" }), "-0.4 B"); assertEquals(format(0.4, { locale: "en" }), "0.4 B"); assertEquals(format(1001, { locale: "en" }), "1 kB"); assertEquals(format(10.1, { locale: "en" }), "10.1 B"); assertEquals(format(1e30, { locale: "en" }), "1,000,000 YB");
assertEquals( format(-0.4, { locale: ["unknown", "de", "en"] }), "-0,4 B", ); assertEquals(format(0.4, { locale: ["unknown", "de", "en"] }), "0,4 B"); assertEquals(format(1001, { locale: ["unknown", "de", "en"] }), "1 kB"); assertEquals( format(10.1, { locale: ["unknown", "de", "en"] }), "10,1 B", ); assertEquals( format(1e30, { locale: ["unknown", "de", "en"] }), "1.000.000 YB", );
assertEquals(format(-0.4, { locale: true }), `-0${decimal}4 B`); assertEquals(format(0.4, { locale: true }), `0${decimal}4 B`); assertEquals(format(1001, { locale: true }), "1 kB"); assertEquals(format(10.1, { locale: true }), `10${decimal}1 B`); assertEquals( format(1e30, { locale: true }), `1${group}000${group}000 YB`, );
assertEquals(format(-0.4, { locale: false }), "-0.4 B"); assertEquals(format(0.4, { locale: false }), "0.4 B"); assertEquals(format(1001, { locale: false }), "1 kB"); assertEquals(format(10.1, { locale: false }), "10.1 B"); assertEquals(format(1e30, { locale: false }), "1000000 YB");
assertEquals(format(-0.4, { locale: undefined }), "-0.4 B"); assertEquals(format(0.4, { locale: undefined }), "0.4 B"); assertEquals(format(1001, { locale: undefined }), "1 kB"); assertEquals(format(10.1, { locale: undefined }), "10.1 B"); assertEquals(format(1e30, { locale: undefined }), "1000000 YB");});
Deno.test("signed option", () => { assertEquals(format(42, { signed: true }), "+42 B"); assertEquals(format(-13, { signed: true }), "-13 B"); assertEquals(format(0, { signed: true }), " 0 B");});
Deno.test("bits option", () => { assertEquals(format(0, { bits: true }), "0 b"); assertEquals(format(0.4, { bits: true }), "0.4 b"); assertEquals(format(0.7, { bits: true }), "0.7 b"); assertEquals(format(10, { bits: true }), "10 b"); assertEquals(format(10.1, { bits: true }), "10.1 b"); assertEquals(format(999, { bits: true }), "999 b"); assertEquals(format(1001, { bits: true }), "1 kbit"); assertEquals(format(1001, { bits: true }), "1 kbit"); assertEquals(format(1e16, { bits: true }), "10 Pbit"); assertEquals(format(1e30, { bits: true }), "1000000 Ybit");});
Deno.test("binary option", () => { assertEquals(format(0, { binary: true }), "0 B"); assertEquals(format(4, { binary: true }), "4 B"); assertEquals(format(10, { binary: true }), "10 B"); assertEquals(format(10.1, { binary: true }), "10.1 B"); assertEquals(format(999, { binary: true }), "999 B"); assertEquals(format(1025, { binary: true }), "1 kiB"); assertEquals(format(1001, { binary: true }), "1000 B"); assertEquals(format(1e16, { binary: true }), "8.88 PiB"); assertEquals(format(1e30, { binary: true }), "827000 YiB");});
Deno.test("bits and binary option", () => { assertEquals(format(0, { bits: true, binary: true }), "0 b"); assertEquals(format(4, { bits: true, binary: true }), "4 b"); assertEquals(format(10, { bits: true, binary: true }), "10 b"); assertEquals(format(999, { bits: true, binary: true }), "999 b"); assertEquals(format(1025, { bits: true, binary: true }), "1 kibit"); assertEquals(format(1e6, { bits: true, binary: true }), "977 kibit");});
Deno.test("fractional digits options", () => { assertEquals( format(1900, { maximumFractionDigits: 1 }), `1${decimal}9 kB`, ); assertEquals( format(1900, { minimumFractionDigits: 3 }), `1${decimal}900 kB`, ); assertEquals( format(1911, { maximumFractionDigits: 1 }), `1${decimal}9 kB`, ); assertEquals( format(1111, { maximumFractionDigits: 2 }), `1${decimal}11 kB`, ); assertEquals( format(1019, { maximumFractionDigits: 3 }), `1${decimal}019 kB`, ); assertEquals( format(1001, { maximumFractionDigits: 3 }), `1${decimal}001 kB`, ); assertEquals( format(1000, { minimumFractionDigits: 1, maximumFractionDigits: 3 }), `1${decimal}0 kB`, ); assertEquals( format(3942, { minimumFractionDigits: 1, maximumFractionDigits: 2 }), `3${decimal}94 kB`, ); assertEquals( format(4001, { maximumFractionDigits: 3, binary: true }), `3${decimal}907 kiB`, ); assertEquals( format(18717, { maximumFractionDigits: 2, binary: true }), `18${decimal}28 kiB`, ); assertEquals( format(18717, { maximumFractionDigits: 4, binary: true }), `18${decimal}2783 kiB`, ); assertEquals( format(32768, { minimumFractionDigits: 2, maximumFractionDigits: 3, binary: true, }), `32${decimal}00 kiB`, ); assertEquals( format(65536, { minimumFractionDigits: 1, maximumFractionDigits: 3, binary: true, }), `64${decimal}0 kiB`, );});
std
Deno standard library
GitHub Repositorydenoland/deno_std
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Version Info

Tagged at
2 months ago