test: cover idempotent signature file init

Signed-off-by: Vitor Mattos <1079143+vitormattos@users.noreply.github.com>

Author: vitormattos

src/tests/store/signMethods.spec.ts

@@ -67,6 +67,16 @@ describe('signMethods store', () => {
 		expect(store.hasSignatureFile()).toBe(true)
 	})
 
+	it('initializes signature file flag only once', () => {
+		const store = useSignMethodsStore()
+
+		store.initializeHasSignatureFile(false)
+		expect(store.hasSignatureFile()).toBe(false)
+
+		store.initializeHasSignatureFile(true)
+		expect(store.hasSignatureFile()).toBe(false)
+	})
+
 	it('checks if certificate is needed', () => {
 		const store = useSignMethodsStore()
 		store.settings = {