feat(chore): add avatar test

src/components/avatar/avatar.test.tsx

@@ -0,0 +1,16 @@
+import { describe, expect, it } from "vitest";
+import { getByText, render, screen } from "@testing-library/react";
+import React from "react";
+import { Avatar } from "./avatar";
+
+describe("Avatar", () => {
+    it("renders an avatar with substring of child", () => {
+        // ARRANGE
+        render(<Avatar color="primary">Test User</Avatar>);
+
+        // ASSERT
+        const alert = screen.getByRole("button");
+        expect(alert).toBeInTheDocument();
+        expect(getByText(alert, "Te")).toBeInTheDocument();
+    });
+});