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//! The common code for `tests/lang_tests_*.rs`
use std::{
env::{self, current_dir},
path::PathBuf,
process::Command,
};
use lang_tester::LangTester;
use tempfile::TempDir;
/// Controls the compile options (e.g., optimization level) used to compile
/// test code.
#[allow(dead_code)] // Each test crate picks one variant
pub enum Profile {
Debug,
Release,
}
pub fn main_inner(profile: Profile) {
let tempdir = TempDir::new().expect("temp dir");
let current_dir = current_dir().expect("current dir");
let current_dir = current_dir.to_str().expect("current dir").to_string();
let gcc_path = include_str!("../gcc_path");
let gcc_path = gcc_path.trim();
env::set_var("LD_LIBRARY_PATH", gcc_path);
LangTester::new()
.test_dir("tests/run")
.test_file_filter(|path| path.extension().expect("extension").to_str().expect("to_str") == "rs")
.test_extract(|source| {
let lines =
source.lines()
.skip_while(|l| !l.starts_with("//"))
.take_while(|l| l.starts_with("//"))
.map(|l| &l[2..])
.collect::<Vec<_>>()
.join("\n");
Some(lines)
})
.test_cmds(move |path| {
// Test command 1: Compile `x.rs` into `tempdir/x`.
let mut exe = PathBuf::new();
exe.push(&tempdir);
exe.push(path.file_stem().expect("file_stem"));
let mut compiler = Command::new("rustc");
compiler.args(&[
&format!("-Zcodegen-backend={}/target/debug/librustc_codegen_gcc.so", current_dir),
"--sysroot", &format!("{}/build_sysroot/sysroot/", current_dir),
"-Zno-parallel-llvm",
"-C", "panic=abort",
"-C", "link-arg=-lc",
"-o", exe.to_str().expect("to_str"),
path.to_str().expect("to_str"),
]);
match profile {
Profile::Debug => {}
Profile::Release => {
compiler.args(&[
"-C", "opt-level=3",
"-C", "lto=no",
]);
}
}
// Test command 2: run `tempdir/x`.
let runtime = Command::new(exe);
vec![("Compiler", compiler), ("Run-time", runtime)]
})
.run();
}
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