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91 lines
2.6 KiB
TypeScript
91 lines
2.6 KiB
TypeScript
// Copyright 2018-2024 the Deno authors. All rights reserved. MIT license.
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// Copyright the Browserify authors. MIT License.
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// Ported from https://github.com/browserify/path-browserify/
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import { assertEquals } from "@std/assert";
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import * as posix from "./posix/mod.ts";
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import * as windows from "./windows/mod.ts";
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const slashRE = /\//g;
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const pairs = [
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["", ""],
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["/path/to/file", ""],
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["/path/to/file.ext", ".ext"],
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["/path.to/file.ext", ".ext"],
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["/path.to/file", ""],
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["/path.to/.file", ""],
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["/path.to/.file.ext", ".ext"],
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["/path/to/f.ext", ".ext"],
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["/path/to/..ext", ".ext"],
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["/path/to/..", ""],
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["file", ""],
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["file.ext", ".ext"],
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[".file", ""],
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[".file.ext", ".ext"],
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["/file", ""],
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["/file.ext", ".ext"],
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["/.file", ""],
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["/.file.ext", ".ext"],
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[".path/file.ext", ".ext"],
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["file.ext.ext", ".ext"],
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["file.", "."],
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[".", ""],
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["./", ""],
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[".file.ext", ".ext"],
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[".file", ""],
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[".file.", "."],
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[".file..", "."],
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["..", ""],
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["../", ""],
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["..file.ext", ".ext"],
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["..file", ".file"],
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["..file.", "."],
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["..file..", "."],
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["...", "."],
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["...ext", ".ext"],
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["....", "."],
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["file.ext/", ".ext"],
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["file.ext//", ".ext"],
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["file/", ""],
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["file//", ""],
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["file./", "."],
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["file.//", "."],
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] as const;
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Deno.test("posix.extname()", function () {
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pairs.forEach(function (p) {
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const input = p[0];
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const expected = p[1];
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assertEquals(expected, posix.extname(input));
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});
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// On *nix, backslash is a valid name component like any other character.
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assertEquals(posix.extname(".\\"), "");
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assertEquals(posix.extname("..\\"), ".\\");
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assertEquals(posix.extname("file.ext\\"), ".ext\\");
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assertEquals(posix.extname("file.ext\\\\"), ".ext\\\\");
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assertEquals(posix.extname("file\\"), "");
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assertEquals(posix.extname("file\\\\"), "");
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assertEquals(posix.extname("file.\\"), ".\\");
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assertEquals(posix.extname("file.\\\\"), ".\\\\");
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});
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Deno.test("windows.extname()", function () {
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pairs.forEach(function (p) {
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const input = p[0].replace(slashRE, "\\");
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const expected = p[1];
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assertEquals(expected, windows.extname(input));
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assertEquals(expected, windows.extname("C:" + input));
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});
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// On Windows, backslash is a path separator.
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assertEquals(windows.extname(".\\"), "");
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assertEquals(windows.extname("..\\"), "");
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assertEquals(windows.extname("file.ext\\"), ".ext");
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assertEquals(windows.extname("file.ext\\\\"), ".ext");
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assertEquals(windows.extname("file\\"), "");
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assertEquals(windows.extname("file\\\\"), "");
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assertEquals(windows.extname("file.\\"), ".");
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assertEquals(windows.extname("file.\\\\"), ".");
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});
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