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204 lines
5.3 KiB
Go
204 lines
5.3 KiB
Go
package usage
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import (
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"context"
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"fmt"
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"os"
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"sync"
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"testing"
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"time"
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"gitea.perlbach24.de/scripte/nexarch/internal/testdb"
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)
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func setupTest(t *testing.T) (*Store, func()) {
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t.Helper()
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adminDSN := os.Getenv("TEST_ADMIN_DSN")
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if adminDSN == "" {
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t.Skip("TEST_ADMIN_DSN nicht gesetzt, Integrationstest uebersprungen")
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}
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ctx := context.Background()
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pool := testdb.Pool(t, adminDSN)
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if _, err := pool.Exec(ctx, `
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CREATE TABLE IF NOT EXISTS usage_counters (
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tenant_id UUID NOT NULL, metric TEXT NOT NULL, value BIGINT NOT NULL DEFAULT 0,
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updated_at TIMESTAMPTZ NOT NULL DEFAULT now(), PRIMARY KEY (tenant_id, metric)
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);
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CREATE TABLE IF NOT EXISTS usage_quotas (
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tenant_id UUID NOT NULL, metric TEXT NOT NULL, limit_value BIGINT NOT NULL,
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PRIMARY KEY (tenant_id, metric)
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);
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`); err != nil {
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t.Fatalf("schema: %v", err)
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}
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cleanup := func() { pool.Close() }
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return NewStore(pool), cleanup
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}
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func newTenantID() string {
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return fmt.Sprintf("00000000-0000-0000-0000-%012d", time.Now().UnixNano()%1e12)
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}
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// Akzeptanzkriterium 1 + Pruefung 2: Aggregationsjob liefert bei parallelen
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// Schreibzugriffen konsistente Zaehlerstaende.
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func TestIncrement_ConsistentUnderConcurrentWrites(t *testing.T) {
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store, cleanup := setupTest(t)
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defer cleanup()
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ctx := context.Background()
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tenant := newTenantID()
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const goroutines = 50
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var wg sync.WaitGroup
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for i := 0; i < goroutines; i++ {
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wg.Add(1)
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go func() {
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defer wg.Done()
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if err := store.Increment(ctx, tenant, "api_calls", 1); err != nil {
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t.Errorf("increment: %v", err)
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}
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}()
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}
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wg.Wait()
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value, err := store.Get(ctx, tenant, "api_calls")
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if err != nil {
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t.Fatalf("get: %v", err)
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}
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if value != goroutines {
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t.Fatalf("erwartet %d, habe %d (hinweis auf lost update unter nebenlaeufigkeit)", goroutines, value)
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}
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}
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// Akzeptanzkriterium 3 + Pruefung 3: Zaehlerstand eines Tenants beeinflusst
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// nicht den eines anderen.
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func TestIncrement_IsolatedBetweenTenants(t *testing.T) {
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store, cleanup := setupTest(t)
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defer cleanup()
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ctx := context.Background()
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tenantA, tenantB := newTenantID(), newTenantID()
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if err := store.Increment(ctx, tenantA, "users", 5); err != nil {
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t.Fatalf("increment a: %v", err)
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}
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if err := store.Increment(ctx, tenantB, "users", 1); err != nil {
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t.Fatalf("increment b: %v", err)
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}
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valA, err := store.Get(ctx, tenantA, "users")
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if err != nil {
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t.Fatalf("get a: %v", err)
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}
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valB, err := store.Get(ctx, tenantB, "users")
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if err != nil {
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t.Fatalf("get b: %v", err)
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}
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if valA != 5 || valB != 1 {
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t.Fatalf("erwartet a=5 b=1, habe a=%d b=%d", valA, valB)
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}
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}
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// Akzeptanzkriterium 2 + Pruefung 1: Quota-Ueberschreitung wird automatisiert
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// erkannt und die definierte Reaktion ausgeloest.
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func TestEnforce_TriggersReactionOnExceeded(t *testing.T) {
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store, cleanup := setupTest(t)
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defer cleanup()
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ctx := context.Background()
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tenant := newTenantID()
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if err := store.SetQuota(ctx, tenant, "users", 10); err != nil {
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t.Fatalf("set quota: %v", err)
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}
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if err := store.Increment(ctx, tenant, "users", 11); err != nil {
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t.Fatalf("increment: %v", err)
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}
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var reacted bool
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var gotStatus Status
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status, err := store.Enforce(ctx, tenant, "users", func(ctx context.Context, tenantID, metric string, value, limit int64, status Status) {
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reacted = true
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gotStatus = status
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})
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if err != nil {
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t.Fatalf("enforce: %v", err)
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}
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if status != StatusExceeded {
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t.Fatalf("erwartet StatusExceeded, habe %q", status)
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}
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if !reacted || gotStatus != StatusExceeded {
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t.Fatal("erwartet ausgeloeste reaktion mit StatusExceeded")
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}
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}
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func TestCheck_WarningThresholdAndOK(t *testing.T) {
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store, cleanup := setupTest(t)
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defer cleanup()
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ctx := context.Background()
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tenant := newTenantID()
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if err := store.SetQuota(ctx, tenant, "storage_mb", 100); err != nil {
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t.Fatalf("set quota: %v", err)
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}
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if err := store.Increment(ctx, tenant, "storage_mb", 50); err != nil {
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t.Fatalf("increment: %v", err)
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}
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_, _, status, err := store.Check(ctx, tenant, "storage_mb")
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if err != nil {
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t.Fatalf("check: %v", err)
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}
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if status != StatusOK {
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t.Fatalf("bei 50%% erwartet StatusOK, habe %q", status)
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}
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if err := store.Increment(ctx, tenant, "storage_mb", 35); err != nil { // insgesamt 85%
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t.Fatalf("increment: %v", err)
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}
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_, _, status, err = store.Check(ctx, tenant, "storage_mb")
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if err != nil {
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t.Fatalf("check: %v", err)
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}
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if status != StatusWarning {
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t.Fatalf("bei 85%% erwartet StatusWarning, habe %q", status)
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}
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}
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func TestCheck_NoQuotaMeansUnlimited(t *testing.T) {
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store, cleanup := setupTest(t)
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defer cleanup()
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ctx := context.Background()
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tenant := newTenantID()
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if err := store.Increment(ctx, tenant, "api_calls", 1_000_000); err != nil {
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t.Fatalf("increment: %v", err)
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}
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_, _, status, err := store.Check(ctx, tenant, "api_calls")
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if err != nil {
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t.Fatalf("check: %v", err)
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}
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if status != StatusOK {
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t.Fatalf("ohne konfigurierte quota erwartet StatusOK, habe %q", status)
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}
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}
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func TestRunPeriodicAggregation_CallsRepeatedly(t *testing.T) {
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ctx, cancel := context.WithTimeout(context.Background(), 120*time.Millisecond)
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defer cancel()
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var mu sync.Mutex
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calls := 0
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RunPeriodicAggregation(ctx, 20*time.Millisecond, func(ctx context.Context) error {
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mu.Lock()
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calls++
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mu.Unlock()
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return nil
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})
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mu.Lock()
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defer mu.Unlock()
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if calls < 3 {
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t.Fatalf("erwartet mehrfache aufrufe innerhalb von 120ms bei 20ms interval, habe %d", calls)
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}
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}
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