diff --git a/core/api/test/unit/domain/wallets/validation.spec.ts b/core/api/test/unit/domain/wallets/validation.spec.ts
new file mode 100644
index 0000000000..d79db68b05
--- /dev/null
+++ b/core/api/test/unit/domain/wallets/validation.spec.ts
@@ -0,0 +1,27 @@
+import { checkedToWalletId } from "@/domain/wallets"
+import { InvalidWalletId } from "@/domain/errors"
+
+describe("checkedToWalletId", () => {
+  it("should return the walletId if it is a valid UUID", () => {
+    const validUuid = "550e8400-e29b-41d4-a716-446655440000"
+    expect(checkedToWalletId(validUuid)).toBe(validUuid)
+  })
+
+  it("should return an InvalidWalletId error for an invalid UUID", () => {
+    const invalidUuid = "invalid-uuid"
+    const result = checkedToWalletId(invalidUuid)
+    expect(result).toBeInstanceOf(InvalidWalletId)
+  })
+
+  it("should return an InvalidWalletId error for an empty string", () => {
+    const emptyString = ""
+    const result = checkedToWalletId(emptyString)
+    expect(result).toBeInstanceOf(InvalidWalletId)
+  })
+
+  it("should return an InvalidWalletId error for a malformed UUID", () => {
+    const malformedUuid = "550e8400e29b41d4a716446655440000"
+    const result = checkedToWalletId(malformedUuid)
+    expect(result).toBeInstanceOf(InvalidWalletId)
+  })
+})