package merrors

import (
	"errors"
	"testing"
)

func TestAMLSourceIdempotencyConflictReasonRoundTrip(t *testing.T) {
	err := AMLSourceIdempotencyConflict("key is bound to another source mutation")
	if !errors.Is(err, ErrDataConflict) || !errors.Is(err, ErrAMLSourceIdempotencyConflict) {
		t.Fatalf("AML source idempotency conflict classification mismatch: %v", err)
	}
	reason, ok := Reason(err)
	if !ok || reason != ReasonAMLSourceIdempotencyConflict {
		t.Fatalf("AML source idempotency reason mismatch: reason=%q ok=%t", reason, ok)
	}
	restored, ok := FromReason(reason, err.Error())
	if !ok || !errors.Is(restored, ErrAMLSourceIdempotencyConflict) {
		t.Fatalf("AML source idempotency reason did not round trip: %v", restored)
	}
}