Add team names utility tests

app/utils/__tests__/team-names.test.ts

@@ -0,0 +1,85 @@
+import { describe, it, expect } from "vitest";
+import {
+  prependOwnerToTeamName,
+  stripOwnerFromTeamName,
+} from "~/utils/team-names";
+
+describe("prependOwnerToTeamName", () => {
+  it("prepends username with 's possessive", () => {
+    expect(prependOwnerToTeamName("Kind Cobras", "bob")).toBe(
+      "Bob's Kind Cobras"
+    );
+  });
+
+  it("uses ' possessive when username ends in s", () => {
+    expect(prependOwnerToTeamName("Kind Cobras", "chris")).toBe(
+      "Chris' Kind Cobras"
+    );
+  });
+
+  it("capitalizes first letter of username", () => {
+    expect(prependOwnerToTeamName("Furious Penguins", "christhrowsrock")).toBe(
+      "Christhrowsrock's Furious Penguins"
+    );
+  });
+
+  it("handles username already capitalized", () => {
+    expect(prependOwnerToTeamName("Bold Bears", "Alice")).toBe(
+      "Alice's Bold Bears"
+    );
+  });
+
+  it("handles name ending in multiple s characters", () => {
+    expect(prependOwnerToTeamName("Mighty Tigers", "jess")).toBe(
+      "Jess' Mighty Tigers"
+    );
+  });
+
+  it("handles display name fallback", () => {
+    expect(prependOwnerToTeamName("Wild Wolves", "Member")).toBe(
+      "Member's Wild Wolves"
+    );
+  });
+
+  it("handles single character username", () => {
+    expect(prependOwnerToTeamName("Team 1", "s")).toBe("S's Team 1");
+  });
+
+  it("handles empty base name", () => {
+    expect(prependOwnerToTeamName("", "bob")).toBe("Bob's ");
+  });
+});
+
+describe("stripOwnerFromTeamName", () => {
+  it("strips 's possessive prefix", () => {
+    expect(stripOwnerFromTeamName("Bob's Kind Cobras", "bob")).toBe(
+      "Kind Cobras"
+    );
+  });
+
+  it("strips ' possessive prefix for names ending in s", () => {
+    expect(stripOwnerFromTeamName("Chris' Kind Cobras", "chris")).toBe(
+      "Kind Cobras"
+    );
+  });
+
+  it("returns name unchanged if prefix does not match", () => {
+    expect(
+      stripOwnerFromTeamName("Alice's Awesome Team", "bob")
+    ).toBe("Alice's Awesome Team");
+  });
+
+  it("handles title case mismatch in username", () => {
+    expect(stripOwnerFromTeamName("Bob's Team", "bob")).toBe("Team");
+  });
+
+  it("returns name unchanged if renamed by owner", () => {
+    expect(stripOwnerFromTeamName("Custom Name", "bob")).toBe("Custom Name");
+  });
+
+  it("handles username ending in s matching 's prefix", () => {
+    expect(stripOwnerFromTeamName("Jess' Wild Wolves", "jess")).toBe(
+      "Wild Wolves"
+    );
+  });
+});