Files
pezkuwi-subxt/substrate/test-utils/derive/src/lib.rs
T
Vivek Pandya bc53b9a03a Remove years from copyright notes. (#13415)
* Change copyright year to 2023 from 2022

* Fix incorrect update of copyright year

* Remove years from copy right header

* Fix remaining files

* Fix typo in a header and remove update-copyright.sh
2023-02-21 18:46:41 +00:00

74 lines
2.2 KiB
Rust

// This file is part of Substrate.
// Copyright (C) Parity Technologies (UK) Ltd.
// SPDX-License-Identifier: GPL-3.0-or-later WITH Classpath-exception-2.0
// This program is free software: you can redistribute it and/or modify
// it under the terms of the GNU General Public License as published by
// the Free Software Foundation, either version 3 of the License, or
// (at your option) any later version.
// This program is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
// GNU General Public License for more details.
// You should have received a copy of the GNU General Public License
// along with this program. If not, see <https://www.gnu.org/licenses/>.
use proc_macro::{Span, TokenStream};
use proc_macro_crate::{crate_name, FoundCrate};
use quote::quote;
#[proc_macro_attribute]
pub fn test(args: TokenStream, item: TokenStream) -> TokenStream {
let input = syn::parse_macro_input!(item as syn::ItemFn);
parse_knobs(input, args.into()).unwrap_or_else(|e| e.to_compile_error().into())
}
fn parse_knobs(
mut input: syn::ItemFn,
args: proc_macro2::TokenStream,
) -> Result<TokenStream, syn::Error> {
let sig = &mut input.sig;
let body = &input.block;
let attrs = &input.attrs;
let vis = input.vis;
if !sig.inputs.is_empty() {
return Err(syn::Error::new_spanned(&sig, "No arguments expected for tests."))
}
let crate_name = match crate_name("substrate-test-utils") {
Ok(FoundCrate::Itself) => syn::Ident::new("substrate_test_utils", Span::call_site().into()),
Ok(FoundCrate::Name(crate_name)) => syn::Ident::new(&crate_name, Span::call_site().into()),
Err(e) => return Err(syn::Error::new_spanned(&sig, e)),
};
let header = {
quote! {
#[#crate_name::tokio::test( #args )]
}
};
let result = quote! {
#header
#(#attrs)*
#vis #sig {
if #crate_name::tokio::time::timeout(
std::time::Duration::from_secs(
std::env::var("SUBSTRATE_TEST_TIMEOUT")
.ok()
.and_then(|x| x.parse().ok())
.unwrap_or(600)),
async move { #body },
).await.is_err() {
panic!("The test took too long!");
}
}
};
Ok(result.into())
}