mirror of
https://github.com/oven-sh/bun
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108 lines
3.5 KiB
JavaScript
108 lines
3.5 KiB
JavaScript
import { test, describe } from "bun:test";
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import assert from "node:assert";
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import path from "node:path";
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describe("path.extname", () => {
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test("general", () => {
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const failures = [];
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const slashRE = /\//g;
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const testPaths = [
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[__filename, ".js"],
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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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];
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for (const testPath of testPaths) {
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const expected = testPath[1];
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const extNames = [path.posix.extname, path.win32.extname];
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for (const extname of extNames) {
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let input = testPath[0];
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let os;
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if (extname === path.win32.extname) {
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input = input.replace(slashRE, "\\");
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os = "win32";
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} else {
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os = "posix";
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}
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const actual = extname(input);
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const message = `path.${os}.extname(${JSON.stringify(input)})\n expect=${JSON.stringify(
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expected,
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)}\n actual=${JSON.stringify(actual)}`;
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if (actual !== expected) failures.push(`\n${message}`);
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}
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const input = `C:${testPath[0].replace(slashRE, "\\")}`;
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const actual = path.win32.extname(input);
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const message = `path.win32.extname(${JSON.stringify(input)})\n expect=${JSON.stringify(
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expected,
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)}\n actual=${JSON.stringify(actual)}`;
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if (actual !== expected) failures.push(`\n${message}`);
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}
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assert.strictEqual(failures.length, 0, failures.join(""));
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});
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test("win32", () => {
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// On Windows, backslash is a path separator.
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assert.strictEqual(path.win32.extname(".\\"), "");
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assert.strictEqual(path.win32.extname("..\\"), "");
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assert.strictEqual(path.win32.extname("file.ext\\"), ".ext");
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assert.strictEqual(path.win32.extname("file.ext\\\\"), ".ext");
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assert.strictEqual(path.win32.extname("file\\"), "");
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assert.strictEqual(path.win32.extname("file\\\\"), "");
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assert.strictEqual(path.win32.extname("file.\\"), ".");
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assert.strictEqual(path.win32.extname("file.\\\\"), ".");
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});
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test("posix", () => {
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// On *nix, backslash is a valid name component like any other character.
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assert.strictEqual(path.posix.extname(".\\"), "");
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assert.strictEqual(path.posix.extname("..\\"), ".\\");
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assert.strictEqual(path.posix.extname("file.ext\\"), ".ext\\");
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assert.strictEqual(path.posix.extname("file.ext\\\\"), ".ext\\\\");
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assert.strictEqual(path.posix.extname("file\\"), "");
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assert.strictEqual(path.posix.extname("file\\\\"), "");
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assert.strictEqual(path.posix.extname("file.\\"), ".\\");
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assert.strictEqual(path.posix.extname("file.\\\\"), ".\\\\");
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});
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});
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