From 6ec259a0e71174651bae95d4628138bf6fd68742 Mon Sep 17 00:00:00 2001
From: kj_sh604
Date: Sun, 15 Mar 2026 16:19:35 -0400
Subject: refactor: packages/

---
 packages/excalidraw/tests/clients.test.ts | 39 +++++++++++++++++++++++++++++++
 1 file changed, 39 insertions(+)
 create mode 100644 packages/excalidraw/tests/clients.test.ts

(limited to 'packages/excalidraw/tests/clients.test.ts')

diff --git a/packages/excalidraw/tests/clients.test.ts b/packages/excalidraw/tests/clients.test.ts
new file mode 100644
index 0000000..e78cf18
--- /dev/null
+++ b/packages/excalidraw/tests/clients.test.ts
@@ -0,0 +1,39 @@
+import { getNameInitial } from "../clients";
+
+describe("getClientInitials", () => {
+  it("returns substring if one name provided", () => {
+    expect(getNameInitial("Alan")).toBe("A");
+  });
+
+  it("returns initials", () => {
+    expect(getNameInitial("John Doe")).toBe("J");
+  });
+
+  it("returns correct initials if many names provided", () => {
+    expect(getNameInitial("John Alan Doe")).toBe("J");
+  });
+
+  it("returns single initial if 1 letter provided", () => {
+    expect(getNameInitial("z")).toBe("Z");
+  });
+
+  it("trims trailing whitespace", () => {
+    expect(getNameInitial("  q    ")).toBe("Q");
+  });
+
+  it('returns "?" if falsey value provided', () => {
+    expect(getNameInitial("")).toBe("?");
+    expect(getNameInitial(undefined)).toBe("?");
+    expect(getNameInitial(null)).toBe("?");
+  });
+
+  it('returns "?" when value is blank', () => {
+    expect(getNameInitial(" ")).toBe("?");
+  });
+
+  it("works with multibyte strings", () => {
+    expect(getNameInitial("😀")).toBe("😀");
+    // but doesn't work with emoji ZWJ sequences
+    expect(getNameInitial("👨‍👩‍👦")).toBe("👨");
+  });
+});
-- 
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