1 files changed, 31 insertions, 0 deletions
diff --git a/internal/controlplane/preferences_test.go b/internal/controlplane/preferences_test.go
new file mode 100644
index 0000000..88a3d50
--- /dev/null
+++ b/internal/controlplane/preferences_test.go
@@ -0,0 +1,31 @@
+package controlplane
+
+import (
+	"context"
+	"testing"
+)
+
+func TestGetTenantPreferencesWithoutTenantUsesConfiguredDefault(t *testing.T) {
+	result, err := (&Store{}).GetTenantPreferences(context.Background(), "", 12_500_000)
+	if err != nil {
+		t.Fatal(err)
+	}
+	if !result.LowBalanceEnabled || result.LowBalanceThresholdMicros != 12_500_000 {
+		t.Fatalf("unexpected defaults: %+v", result)
+	}
+}
+
+func TestPreferenceValidationRejectsUnsafeValuesBeforeDatabaseAccess(t *testing.T) {
+	store := &Store{}
+	if _, err := store.SetDeveloperPreferences(context.Background(), SetDeveloperPreferencesInput{
+		TenantID: "tenant", DefaultModel: "same", FallbackModel: "same",
+	}); err == nil {
+		t.Fatal("expected identical default and fallback models to fail")
+	}
+	threshold := maxLowBalanceThresholdMicros + 1
+	if _, err := store.SetBillingPreferences(context.Background(), SetBillingPreferencesInput{
+		TenantID: "tenant", LowBalanceThresholdMicros: &threshold,
+	}, 5_000_000); err == nil {
+		t.Fatal("expected excessive low balance threshold to fail")
+	}
+}