Carlos Florêncio
31 lines
907 B
TypeScript
31 lines
907 B
TypeScript
import { describe, it, expect } from "vitest";
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import { formatBytes } from "./format-bytes";
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describe("formatBytes", () => {
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it("returns '-' for nullish input", () => {
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expect(formatBytes(null)).toBe("-");
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expect(formatBytes(undefined)).toBe("-");
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});
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it("returns '0 B' for zero or negative input", () => {
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expect(formatBytes(0)).toBe("0 B");
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expect(formatBytes(-1)).toBe("0 B");
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});
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it("renders integer bytes below 1 KB", () => {
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expect(formatBytes(1)).toBe("1 B");
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expect(formatBytes(1023)).toBe("1023 B");
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});
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it("renders KB with one decimal", () => {
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expect(formatBytes(1024)).toBe("1.0 KB");
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expect(formatBytes(2048)).toBe("2.0 KB");
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});
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it("renders MB / GB / TB", () => {
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expect(formatBytes(1024 * 1024)).toBe("1.0 MB");
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expect(formatBytes(1024 * 1024 * 1024)).toBe("1.0 GB");
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expect(formatBytes(1024 ** 4)).toBe("1.0 TB");
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});
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});
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