Cherry-picked #6567: state/types: refactor makeBlock, makeBlocks and makeTxs (#6567)

test/factory/tx.go

@@ -0,0 +1,16 @@
+package factory
+
+import "github.com/tendermint/tendermint/types"
+
+// MakeTxs is a helper function to generate mock transactions by given the block height
+// and the transaction numbers.
+func MakeTxs(height int64, num int) (txs []types.Tx) {
+	for i := 0; i < num; i++ {
+		txs = append(txs, types.Tx([]byte{byte(height), byte(i)}))
+	}
+	return txs
+}
+
+func MakeTenTxs(height int64) (txs []types.Tx) {
+	return MakeTxs(height, 10)
+}