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https://github.com/pezkuwichain/pezkuwi-subxt.git
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PG Herveou
64effd0e6f
Small PR that introduce a new crate that will host RISC-V & wasm fixtures for testing pallet-contracts
43 lines
1.7 KiB
Rust
43 lines
1.7 KiB
Rust
// This file is part of Substrate.
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// Copyright (C) Parity Technologies (UK) Ltd.
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// SPDX-License-Identifier: Apache-2.0
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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use sp_runtime::traits::Hash;
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use std::{env::var, path::PathBuf};
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fn fixtures_root_dir() -> PathBuf {
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match (var("CARGO_MANIFEST_DIR"), var("CARGO_PKG_NAME")) {
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// When `CARGO_MANIFEST_DIR` is not set, Rust resolves relative paths from the root folder
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(Err(_), _) => "substrate/frame/contracts/fixtures/data".into(),
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(Ok(path), Ok(s)) if s == "pallet-contracts" => PathBuf::from(path).join("fixtures/data"),
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(Ok(_), pkg_name) => panic!("Failed to resolve fixture dir for tests from {pkg_name:?}."),
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}
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}
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/// Load a given wasm module represented by a .wat file and returns a wasm binary contents along
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/// with it's hash.
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///
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/// The fixture files are located under the `fixtures/` directory.
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pub fn compile_module<T>(fixture_name: &str) -> wat::Result<(Vec<u8>, <T::Hashing as Hash>::Output)>
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where
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T: frame_system::Config,
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{
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let fixture_path = fixtures_root_dir().join(format!("{fixture_name}.wat"));
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let wasm_binary = wat::parse_file(fixture_path)?;
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let code_hash = T::Hashing::hash(&wasm_binary);
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Ok((wasm_binary, code_hash))
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}
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