diff --git a/test/get-bearer-token.test.ts b/test/get-bearer-token.test.ts
new file mode 100644
index 00000000000..0e901cdb884
--- /dev/null
+++ b/test/get-bearer-token.test.ts
@@ -0,0 +1,20 @@
+import { getBearerToken } from "../app/client/api";
+
+describe("getBearerToken", () => {
+  test("wraps the key with a 'Bearer ' prefix by default", () => {
+    expect(getBearerToken("abc")).toBe("Bearer abc");
+  });
+
+  test("omits the prefix when noBearer is true", () => {
+    expect(getBearerToken("abc", true)).toBe("abc");
+  });
+
+  test("trims surrounding whitespace from the key", () => {
+    expect(getBearerToken("  abc  ")).toBe("Bearer abc");
+  });
+
+  test("returns an empty string when the key is empty", () => {
+    expect(getBearerToken("")).toBe("");
+    expect(getBearerToken("", true)).toBe("");
+  });
+});