Use array-bytes for All Array/Bytes/Hex Operations (#12190)

* Use `array-bytes` for All Array/Bytes/Hex Operations

Signed-off-by: Xavier Lau <xavier@inv.cafe>

* Reorder

* Self Review

* Format

* Fix Tests

* Bump `array-bytes`

* Optimize large test res

Signed-off-by: Xavier Lau <xavier@inv.cafe>
Co-authored-by: parity-processbot <>

substrate/utils/frame/benchmarking-cli/Cargo.toml

@@ -13,13 +13,13 @@ readme = "README.md"
 targets = ["x86_64-unknown-linux-gnu"]
 
 [dependencies]
+array-bytes = "4.1"
 chrono = "0.4"
 clap = { version = "3.1.18", features = ["derive"] }
 codec = { package = "parity-scale-codec", version = "3.0.0" }
 comfy-table = { version = "6.0.0", default-features = false }
 handlebars = "4.2.2"
 hash-db = "0.15.2"
-hex = "0.4.3"
 Inflector = "0.11.4"
 itertools = "0.10.3"
 kvdb = "0.11.0"

substrate/utils/frame/benchmarking-cli/src/block/bench.rs

@@ -131,7 +131,9 @@ where
 	fn consumed_weight(&self, block: &BlockId<Block>) -> Result<NanoSeconds> {
 		// Hard-coded key for System::BlockWeight. It could also be passed in as argument
 		// for the benchmark, but I think this should work as well.
-		let hash = hex::decode("26aa394eea5630e07c48ae0c9558cef734abf5cb34d6244378cddbf18e849d96")?;
+		let hash = array_bytes::hex2bytes(
+			"26aa394eea5630e07c48ae0c9558cef734abf5cb34d6244378cddbf18e849d96",
+		)?;
 		let key = StorageKey(hash);
 
 		let mut raw_weight = &self