core: added basic chain configuration

Added chain configuration options and write out during genesis database
insertion. If no "config" was found, nothing is written to the database.

Configurations are written on a per genesis base. This means
that any chain (which is identified by it's genesis hash) can have their
own chain settings.

1 files changed, 9 insertions, 3 deletions

diff --git a/core/block_validator_test.go b/core/block_validator_test.go
index 2c4a97b45..aa29717b1 100644
--- a/core/block_validator_test.go
+++ b/core/block_validator_test.go
@@ -27,15 +27,20 @@ import (
 	"github.com/ethereum/go-ethereum/core/vm"
 	"github.com/ethereum/go-ethereum/ethdb"
 	"github.com/ethereum/go-ethereum/event"
+	"github.com/ethereum/go-ethereum/params"
 	"github.com/ethereum/go-ethereum/pow/ezp"
 )
 
+func testChainConfig() *ChainConfig {
+	return &ChainConfig{HomesteadBlock: params.MainNetHomesteadBlock}
+}
+
 func proc() (Validator, *BlockChain) {
 	db, _ := ethdb.NewMemDatabase()
 	var mux event.TypeMux
 
 	WriteTestNetGenesisBlock(db)
-	blockchain, err := NewBlockChain(db, thePow(), &mux)
+	blockchain, err := NewBlockChain(db, testChainConfig(), thePow(), &mux)
 	if err != nil {
 		fmt.Println(err)
 	}
@@ -49,13 +54,14 @@ func TestNumber(t *testing.T) {
 	statedb, _ := state.New(chain.Genesis().Root(), chain.chainDb)
 	header := makeHeader(chain.Genesis(), statedb)
 	header.Number = big.NewInt(3)
-	err := ValidateHeader(pow, header, chain.Genesis().Header(), false, false)
+	cfg := testChainConfig()
+	err := ValidateHeader(cfg, pow, header, chain.Genesis().Header(), false, false)
 	if err != BlockNumberErr {
 		t.Errorf("expected block number error, got %q", err)
 	}
 
 	header = makeHeader(chain.Genesis(), statedb)
-	err = ValidateHeader(pow, header, chain.Genesis().Header(), false, false)
+	err = ValidateHeader(cfg, pow, header, chain.Genesis().Header(), false, false)
 	if err == BlockNumberErr {
 		t.Errorf("didn't expect block number error")
 	}