eth/filters: extended test to test topics and no error scenarios

eth/filters/filter_system.go

@@ -53,9 +53,6 @@ func (cfg Config) withDefaults() Config {
 	if cfg.LogCacheSize == 0 {
 		cfg.LogCacheSize = 32
 	}
-	if cfg.LogQueryLimit == 0 {
-		cfg.LogQueryLimit = 1000
-	}
 	return cfg
 }
 

eth/filters/filter_system_test.go

@@ -36,6 +36,7 @@ import (
 	"github.com/ethereum/go-ethereum/internal/ethapi"
 	"github.com/ethereum/go-ethereum/params"
 	"github.com/ethereum/go-ethereum/rpc"
+	"github.com/ethereum/go-ethereum/triedb"
 )
 
 type testBackend struct {
@@ -424,7 +425,7 @@ func TestInvalidLogFilterCreation(t *testing.T) {
 
 	var (
 		db     = rawdb.NewMemoryDatabase()
-		_, sys = newTestFilterSystem(db, Config{})
+		_, sys = newTestFilterSystem(db, Config{LogQueryLimit: 1000})
 		api    = NewFilterAPI(sys)
 	)
 
@@ -528,51 +529,89 @@ func TestInvalidGetRangeLogsRequest(t *testing.T) {
 	}
 }
 
-// TestInvalidAddressLengthRequest tests getLogs with too many addresses
-func TestInvalidAddressLengthRequest(t *testing.T) {
+// TestExceedLogQueryLimit tests getLogs with too many addresses or topics
+func TestExceedLogQueryLimit(t *testing.T) {
 	t.Parallel()
 
 	// Test with custom config (LogQueryLimit = 5 for easier testing)
 	var (
 		db           = rawdb.NewMemoryDatabase()
-		_, sys = newTestFilterSystem(db, Config{LogQueryLimit: 5})
+		backend, sys = newTestFilterSystem(db, Config{LogQueryLimit: 5})
 		api          = NewFilterAPI(sys)
+		gspec        = &core.Genesis{
+			Config:  params.TestChainConfig,
+			Alloc:   types.GenesisAlloc{},
+			BaseFee: big.NewInt(params.InitialBaseFee),
+		}
 	)
 
-	// Test that 6 addresses fails with correct error
-	invalidAddresses := make([]common.Address, 6)
-	for i := range invalidAddresses {
-		invalidAddresses[i] = common.HexToAddress("0x1234567890123456789012345678901234567890")
+	_, err := gspec.Commit(db, triedb.NewDatabase(db, nil))
+	if err != nil {
+		t.Fatal(err)
+	}
+	chain, _ := core.GenerateChain(gspec.Config, gspec.ToBlock(), ethash.NewFaker(), db, 1000, func(i int, gen *core.BlockGen) {})
+
+	options := core.DefaultConfig().WithStateScheme(rawdb.HashScheme)
+	options.TxLookupLimit = 0 // index all txs
+	bc, err := core.NewBlockChain(db, gspec, ethash.NewFaker(), options)
+	if err != nil {
+		t.Fatal(err)
+	}
+	_, err = bc.InsertChain(chain[:600])
+	if err != nil {
+		t.Fatal(err)
 	}
 
+	backend.startFilterMaps(200, false, filtermaps.RangeTestParams)
+	defer backend.stopFilterMaps()
+
+	addresses := make([]common.Address, 6)
+	for i := range addresses {
+		addresses[i] = common.HexToAddress("0x1234567890123456789012345678901234567890")
+	}
+
+	topics := make([]common.Hash, 6)
+	for i := range topics {
+		topics[i] = common.HexToHash("0x123456789012345678901234567890123456789001234567890012345678901234")
+	}
+
+	// Test that 5 addresses do not result in error
 	// Add FromBlock and ToBlock to make it similar to other invalid tests
 	if _, err := api.GetLogs(context.Background(), FilterCriteria{
 		FromBlock: big.NewInt(0),
 		ToBlock:   big.NewInt(100),
-		Addresses: invalidAddresses,
-	}); err != errExceedLogQueryLimit {
-		t.Errorf("Expected GetLogs with 6 addresses to return errExceedLogQueryLimit, but got: %v", err)
+		Addresses: addresses[:5],
+	}); err != nil {
+		t.Errorf("Expected GetLogs with 5 addresses to return with no error, got: %v", err)
 	}
 
-	// Test with default config should reject 1001 addresses
-	var (
-		db2     = rawdb.NewMemoryDatabase()
-		_, sys2 = newTestFilterSystem(db2, Config{}) // Uses default LogQueryLimit = 1000
-		api2    = NewFilterAPI(sys2)
-	)
-
-	// Test that 1001 addresses fails with correct error
-	tooManyAddresses := make([]common.Address, 1001)
-	for i := range tooManyAddresses {
-		tooManyAddresses[i] = common.HexToAddress("0x1234567890123456789012345678901234567890")
-	}
-
-	if _, err := api2.GetLogs(context.Background(), FilterCriteria{
+	// Test that 6 addresses fails with correct error
+	if _, err := api.GetLogs(context.Background(), FilterCriteria{
 		FromBlock: big.NewInt(0),
 		ToBlock:   big.NewInt(100),
-		Addresses: tooManyAddresses,
+		Addresses: addresses,
 	}); err != errExceedLogQueryLimit {
-		t.Errorf("Expected GetLogs with 1001 addresses to return errExceedLogQueryLimit, but got: %v", err)
+		t.Errorf("Expected GetLogs with 6 addresses to return errExceedLogQueryLimit, got: %v", err)
+	}
+
+	// Test that 5 topics at one position do not result in error
+	if _, err := api.GetLogs(context.Background(), FilterCriteria{
+		FromBlock: big.NewInt(0),
+		ToBlock:   big.NewInt(100),
+		Addresses: addresses[:1],
+		Topics:    [][]common.Hash{topics[:5]},
+	}); err != nil {
+		t.Errorf("Expected GetLogs with 5 topics at one position to return with no error, got: %v", err)
+	}
+
+	// Test that 6 topics at one position fails with correct error
+	if _, err := api.GetLogs(context.Background(), FilterCriteria{
+		FromBlock: big.NewInt(0),
+		ToBlock:   big.NewInt(100),
+		Addresses: addresses[:1],
+		Topics:    [][]common.Hash{topics},
+	}); err != errExceedLogQueryLimit {
+		t.Errorf("Expected GetLogs with 6 topics at one position to return errExceedLogQueryLimit, got: %v", err)
 	}
 }