From 5f39029e069c99b2003ee296d2607a470ddb677a Mon Sep 17 00:00:00 2001
From: Doris Benda <DOBEN@users.noreply.github.com>
Date: Mon, 7 Aug 2023 12:08:55 +0300
Subject: [PATCH] Apply linter

---
 concordium-std/src/impls.rs                   |  1 -
 concordium-std/src/types.rs                   |  8 +++-----
 examples/cis3-nft-sponsored-txs/src/lib.rs    | 11 ++++++-----
 examples/cis3-nft-sponsored-txs/tests/test.rs |  5 ++++-
 4 files changed, 13 insertions(+), 12 deletions(-)

diff --git a/concordium-std/src/impls.rs b/concordium-std/src/impls.rs
index 35844f16..5ccd1f51 100644
--- a/concordium-std/src/impls.rs
+++ b/concordium-std/src/impls.rs
@@ -2918,7 +2918,6 @@ where
     fn delete(mut self) { self.clear(); }
 }
 
-
 impl Serial for HashSha2256 {
     fn serial<W: Write>(&self, out: &mut W) -> Result<(), W::Err> { self.0.serial(out) }
 }
diff --git a/concordium-std/src/types.rs b/concordium-std/src/types.rs
index b45fa828..6dd96de9 100644
--- a/concordium-std/src/types.rs
+++ b/concordium-std/src/types.rs
@@ -1,9 +1,7 @@
 use crate::{
     cell::UnsafeCell, marker::PhantomData, num::NonZeroU32, Cursor, HasStateApi, Serial, Vec,
 };
-use concordium_contracts_common::{
-    AccountBalance, Amount, ParseError
-};
+use concordium_contracts_common::{AccountBalance, Amount, ParseError};
 use core::{fmt, str::FromStr};
 // Re-export for backward compatibility.
 pub use concordium_contracts_common::ExchangeRates;
@@ -695,13 +693,13 @@ pub type QueryContractBalanceResult = Result<Amount, QueryContractBalanceError>;
 
 /// A wrapper around [`Result`] that fixes the error variant to
 /// [`QueryAccountPublicKeysError`] and result to [`AccountPublicKeys`].
-pub type QueryAccountPublicKeysResult = Result<crate::AccountPublicKeys, QueryAccountPublicKeysError>;
+pub type QueryAccountPublicKeysResult =
+    Result<crate::AccountPublicKeys, QueryAccountPublicKeysError>;
 
 /// A wrapper around [`Result`] that fixes the error variant to
 /// [`CheckAccountSignatureError`] and result to [`bool`].
 pub type CheckAccountSignatureResult = Result<bool, CheckAccountSignatureError>;
 
-
 /// A type representing the attributes, lazily acquired from the host.
 #[derive(Clone, Copy, Default)]
 pub struct AttributesCursor {
diff --git a/examples/cis3-nft-sponsored-txs/src/lib.rs b/examples/cis3-nft-sponsored-txs/src/lib.rs
index e7fac781..19483632 100644
--- a/examples/cis3-nft-sponsored-txs/src/lib.rs
+++ b/examples/cis3-nft-sponsored-txs/src/lib.rs
@@ -43,10 +43,11 @@
 //! identities) and each credential has one (or several) public-private key
 //! pairs. The key/signature structures of an account are represented as
 //! two-level maps (e.g. BTreeMap<CredentialIndexU8, BTreeMap<PublicKeyIndexU8,
-//! Ed25519PublicKey>> or BTreeMap<CredentialIndexU8, BTreeMap<SignatureIndexU8,
-//! Signature>>). The outer map has an `AccountThreshold` (number of credentials
-//! needed to sign the transaction initiated by that account) and the inner map
-//! has a `SignatureThreshold` (number of Ed25519Signatures needed for a
+//! PublicKey>> or BTreeMap<CredentialIndexU8, BTreeMap<SignatureIndexU8,
+//! Signature>>). The outer map of `BTreeMap<CredentialIndexU8,
+//! BTreeMap<PublicKeyIndexU8, PublicKey>>` has an `AccountThreshold` (number of
+//! credentials needed to sign the transaction initiated by that account) and
+//! the inner map has a `SignatureThreshold` (number of Signatures needed for a
 //! specific credential so that this credential is considered to have signed the
 //! transaction initiated by that account). The CIS3 standard supports multi-sig
 //! accounts. But for simplicity, this contract supports only basic accounts
@@ -344,7 +345,7 @@ type ContractError = Cis2Error<CustomContractError>;
 
 type ContractResult<A> = Result<A, ContractError>;
 
-/// Mapping CustomContractError to ContractError
+/// Mapping account signature error to CustomContractError
 impl From<CheckAccountSignatureError> for CustomContractError {
     fn from(e: CheckAccountSignatureError) -> Self {
         match e {
diff --git a/examples/cis3-nft-sponsored-txs/tests/test.rs b/examples/cis3-nft-sponsored-txs/tests/test.rs
index 0f243060..36beb03a 100644
--- a/examples/cis3-nft-sponsored-txs/tests/test.rs
+++ b/examples/cis3-nft-sponsored-txs/tests/test.rs
@@ -61,7 +61,10 @@ fn setup_chain_and_contract() -> (Chain, ContractInitSuccess) {
 
     inner_key_map.insert(
         KeyIndex(0u8),
-        VerifyKey::Ed25519VerifyKey(ed25519_dalek::PublicKey::from_bytes(&PUBLIC_KEY).unwrap()),
+        VerifyKey::Ed25519VerifyKey(
+            ed25519_dalek::PublicKey::from_bytes(&PUBLIC_KEY)
+                .expect("Should be able to create public key"),
+        ),
     );
 
     let credential_public_keys = CredentialPublicKeys {