Files
pezkuwi-subxt/substrate/frame/contracts/fixtures/src/lib.rs
T
Bastian Köcher 1c2db1747e Some random fixes (#2936)
- Do not disable `std` feature in the integration tests
- `contracts-fixtures` test should only check for `riscv` build when the
feature is enabled
2024-01-16 00:19:17 +00:00

77 lines
2.7 KiB
Rust

// This file is part of Substrate.
// Copyright (C) Parity Technologies (UK) Ltd.
// SPDX-License-Identifier: Apache-2.0
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
use sp_runtime::traits::Hash;
use std::{env::var, fs, path::PathBuf};
fn wat_root_dir() -> PathBuf {
match (var("CARGO_MANIFEST_DIR"), var("CARGO_PKG_NAME")) {
// When `CARGO_MANIFEST_DIR` is not set, Rust resolves relative paths from the root folder
(Err(_), _) => "substrate/frame/contracts/fixtures/data".into(),
(Ok(path), Ok(s)) if s == "pallet-contracts" => PathBuf::from(path).join("fixtures/data"),
(Ok(path), Ok(s)) if s == "pallet-contracts-mock-network" =>
PathBuf::from(path).parent().unwrap().join("fixtures/data"),
(Ok(_), pkg_name) => panic!("Failed to resolve fixture dir for tests from {pkg_name:?}."),
}
}
/// Load a given wasm module represented by a .wat file and returns a wasm binary contents along
/// with it's hash.
///
/// The fixture files are located under the `fixtures/` directory.
fn legacy_compile_module<T>(
fixture_name: &str,
) -> anyhow::Result<(Vec<u8>, <T::Hashing as Hash>::Output)>
where
T: frame_system::Config,
{
let fixture_path = wat_root_dir().join(format!("{fixture_name}.wat"));
let wasm_binary = wat::parse_file(fixture_path)?;
let code_hash = T::Hashing::hash(&wasm_binary);
Ok((wasm_binary, code_hash))
}
/// Load a given wasm module and returns a wasm binary contents along with it's hash.
/// Use the legacy compile_module as fallback, if the rust fixture does not exist yet.
pub fn compile_module<T>(
fixture_name: &str,
) -> anyhow::Result<(Vec<u8>, <T::Hashing as Hash>::Output)>
where
T: frame_system::Config,
{
let out_dir: std::path::PathBuf = env!("OUT_DIR").into();
let fixture_path = out_dir.join(format!("{fixture_name}.wasm"));
match fs::read(fixture_path) {
Ok(wasm_binary) => {
let code_hash = T::Hashing::hash(&wasm_binary);
Ok((wasm_binary, code_hash))
},
Err(_) => legacy_compile_module::<T>(fixture_name),
}
}
#[cfg(test)]
mod test {
#[test]
fn out_dir_should_have_compiled_mocks() {
let out_dir: std::path::PathBuf = env!("OUT_DIR").into();
assert!(out_dir.join("dummy.wasm").exists());
#[cfg(feature = "riscv")]
assert!(out_dir.join("dummy.polkavm").exists());
}
}