exit 0 without key on Windows to avoid Winget Validation-Executable-Error (#2376, #2247)

internal/cmd/agent/agent_test.go

@@ -2,6 +2,7 @@ package main
 
 import (
 	"crypto/ed25519"
+	"errors"
 	"os"
 	"path/filepath"
 	"testing"
@@ -187,6 +188,26 @@ func TestLoadPublicKeys(t *testing.T) {
 	}
 }
 
+func TestIsBenignStartupError(t *testing.T) {
+	tests := []struct {
+		name string
+		err  error
+		goos string
+		want bool
+	}{
+		{name: "missing key on windows", err: noKeyProvidedError{}, goos: "windows", want: true},
+		{name: "wrapped missing key on windows", err: errors.Join(errors.New("startup failed"), noKeyProvidedError{}), goos: "windows", want: true},
+		{name: "missing key on linux", err: noKeyProvidedError{}, goos: "linux", want: false},
+		{name: "different error on windows", err: errors.New("invalid key"), goos: "windows", want: false},
+	}
+
+	for _, tt := range tests {
+		t.Run(tt.name, func(t *testing.T) {
+			assert.Equal(t, tt.want, isBenignStartupError(tt.err, tt.goos))
+		})
+	}
+}
+
 func TestGetNetwork(t *testing.T) {
 	tests := []struct {
 		name     string