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Monorepo for Tangled
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2.1 kB · 91 lines
Go
at master
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import ( "context" "fmt" "path/filepath" "sync" "testing")
// TestGetOrAssignOwnerUID_Concurrent verifies that concurrent calls for// distinct DIDs each get a unique UID, with no duplicates from a race on// the uid_counter table.func TestGetOrAssignOwnerUID_Concurrent(t *testing.T) { d := newTestDB(t)
const n = 50 results := make([]uint32, n) var wg sync.WaitGroup wg.Add(n) for i := 0; i < n; i++ { go func(i int) { defer wg.Done() uid, err := d.GetOrAssignOwnerUID(fmt.Sprintf("did:plc:test-%03d", i)) if err != nil { t.Errorf("GetOrAssignOwnerUID(%d): %v", i, err) return } results[i] = uid }(i) } wg.Wait()
seen := map[uint32]int{} for i, uid := range results { if uid == 0 { t.Errorf("result[%d] is zero (probably an error above)", i) continue } if prev, ok := seen[uid]; ok { t.Errorf("uid %d was returned for both index %d and %d", uid, prev, i) } seen[uid] = i }
if len(seen) != n { t.Errorf("got %d unique UIDs, want %d", len(seen), n) }}
// TestGetOrAssignOwnerUID_Idempotent verifies that repeated calls for the// same DID return the same UID.func TestGetOrAssignOwnerUID_Idempotent(t *testing.T) { d := newTestDB(t) const did = "did:plc:stable"
first, err := d.GetOrAssignOwnerUID(did) if err != nil { t.Fatalf("first call: %v", err) } for i := 0; i < 5; i++ { uid, err := d.GetOrAssignOwnerUID(did) if err != nil { t.Fatalf("repeat call %d: %v", i, err) } if uid != first { t.Errorf("repeat call %d returned %d, want %d", i, uid, first) } }}
// TestGetOrAssignOwnerUID_StartsAt100000 verifies the counter seeds correctly.func TestGetOrAssignOwnerUID_StartsAt100000(t *testing.T) { d := newTestDB(t) uid, err := d.GetOrAssignOwnerUID("did:plc:first") if err != nil { t.Fatalf("first call: %v", err) } if uid != 100000 { t.Errorf("first UID = %d, want 100000", uid) }}
func newTestDB(t *testing.T) *DB { t.Helper() d, err := Setup(context.Background(), filepath.Join(t.TempDir(), "test.db")) if err != nil { t.Fatalf("db.Setup: %v", err) } return d}