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node_modules/@weborigami/async-tree/test/extension.test.js

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+import assert from "node:assert";
+import { describe, test } from "node:test";
+import { extname, match, replace } from "../src/extension.js";
+
+describe("extension", () => {
+  test("extname", () => {
+    assert.equal(extname(".\\"), "");
+    assert.equal(extname("..\\"), ".\\");
+    assert.equal(extname("file.ext\\"), ".ext\\");
+    assert.equal(extname("file.ext\\\\"), ".ext\\\\");
+    assert.equal(extname("file\\"), "");
+    assert.equal(extname("file\\\\"), "");
+    assert.equal(extname("file.\\"), ".\\");
+    assert.equal(extname("file.\\\\"), ".\\\\");
+  });
+
+  test("match", () => {
+    assert.equal(match("file.md", ".md"), "file");
+    assert.equal(match("file.md", ".txt"), null);
+    assert.equal(match("file.md/", ".md"), "file/");
+    assert.equal(match("file", ""), "file");
+    assert.equal(match("file", "/"), null);
+    assert.equal(match("file/", "/"), "file");
+  });
+
+  test("match can handle multi-part extensions", () => {
+    assert.equal(match("foo.ori.html", ".ori.html"), "foo");
+    assert.equal(match("foo.ori.html", ".html"), "foo.ori");
+    assert.equal(match("foo.ori.html", ".txt"), null);
+    assert.equal(match("foo.ori.html/", ".ori.html"), "foo/");
+  });
+
+  test("replace", () => {
+    assert.equal(replace("file.md", ".md", ".html"), "file.html");
+    assert.equal(replace("file.md", ".txt", ".html"), "file.md");
+    assert.equal(replace("file.md/", ".md", ".html"), "file.html/");
+    assert.equal(replace("folder/", "", ".html"), "folder.html");
+    assert.equal(replace("folder", "/", ".html"), "folder");
+    assert.equal(replace("folder/", "/", ".html"), "folder.html");
+  });
+});