add tests for Resources/utils

Author: aedwardg

src/routes/Resources/utils.test.ts

@@ -0,0 +1,46 @@
+import { describe, it, expect } from "vitest";
+import { extractTags, sortEntries } from "./utils";
+
+describe("sortEntries", () => {
+  it("sorts entries alphabetically by title", () => {
+    const first = { title: "First Entry", url: "first.com", tags: ["foo"] };
+    const second = { title: "Second", url: "second.com", tags: ["bar"] };
+    const third = {
+      title: "Another Entry",
+      url: "another.com",
+      tags: ["foo", "bar"],
+    };
+
+    expect(sortEntries([first, second, third])).toEqual([third, first, second]);
+  });
+
+  it("disregards leading 'The' when sorting titles", () => {
+    const first = { title: "The First Entry", url: "first.com", tags: ["foo"] };
+    const second = { title: "Go Second", url: "second.com", tags: ["bar"] };
+    const third = {
+      title: "Another Entry",
+      url: "another.com",
+      tags: ["foo", "bar"],
+    };
+
+    expect(sortEntries([first, second, third])).toEqual([third, first, second]);
+  });
+});
+
+describe("extractTags", () => {
+  it("returns an array of unique tags from all of the entries provided", () => {
+    const first = {
+      title: "First Entry",
+      url: "first.com",
+      tags: ["foo", "baz"],
+    };
+    const second = { title: "Second", url: "second.com", tags: ["bar"] };
+    const third = {
+      title: "Another Entry",
+      url: "another.com",
+      tags: ["foo", "bar"],
+    };
+
+    expect(extractTags([first, second, third])).toEqual(["foo", "baz", "bar"]);
+  });
+});