core, dex/downloader: polish headers verification and blocks insertion logic (#168)

Refactor GenerateDexonChain function, move governance tx logic to
the user of GenerateDexonChain (testchain_test.go) and move fake node set
code to FakeDexcon.

1 files changed, 11 insertions, 0 deletions

diff --git a/core/types/block.go b/core/types/block.go
index 4ff34c229..88e537e3a 100644
--- a/core/types/block.go
+++ b/core/types/block.go
@@ -264,6 +264,17 @@ func CopyHeader(h *Header) *Header {
 		cpy.Extra = make([]byte, len(h.Extra))
 		copy(cpy.Extra, h.Extra)
 	}
+	if cpy.Reward = new(big.Int); h.Reward != nil {
+		cpy.Reward.Set(h.Reward)
+	}
+	if len(h.Randomness) > 0 {
+		cpy.Randomness = make([]byte, len(h.Randomness))
+		copy(cpy.Randomness, h.Randomness)
+	}
+	if len(h.DexconMeta) > 0 {
+		cpy.DexconMeta = make([]byte, len(h.DexconMeta))
+		copy(cpy.DexconMeta, h.DexconMeta)
+	}
 	return &cpy
 }