added existing key option

pkg/cli/cli_test.go

@@ -0,0 +1,47 @@
+// Copyright (C) 2023 Marius Schellenberger
+
+package cli
+
+import (
+	"bytes"
+	"testing"
+)
+
+func TestConfirm(t *testing.T) {
+	b := new(bytes.Buffer)
+
+	b.WriteString("\n")
+	if confirm(b) {
+		t.Error("invalid confirm")
+	}
+	b.Reset()
+
+	b.WriteString(" n\n")
+	if confirm(b) {
+		t.Error("invalid confirm")
+	}
+	b.Reset()
+
+	b.WriteString(" foo\n")
+	if confirm(b) {
+		t.Error("invalid confirm")
+	}
+	b.Reset()
+
+	b.WriteString("Y\n")
+	if confirm(b) {
+		t.Error("invalid confirm")
+	}
+	b.Reset()
+
+	b.WriteString(" y\n")
+	if !confirm(b) {
+		t.Error("valid confirm")
+	}
+	b.Reset()
+
+	b.WriteString("y\n")
+	if !confirm(b) {
+		t.Error("valid confirm")
+	}
+}