131 lines
3.9 KiB
Rust
131 lines
3.9 KiB
Rust
use std::error;
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use std::io::{BufRead, BufReader, Write};
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use std::process::{Child, Command, Stdio};
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use std::result;
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#[allow(unused)]
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type Error = Box<dyn error::Error + std::marker::Send + std::marker::Sync>;
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#[allow(unused)]
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pub type Result<T> = result::Result<T, Error>;
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fn build_command() -> Command {
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let mut cmd;
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if let Some(binary) = std::env::var_os("TEST_HELPER") {
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cmd = Command::new(binary);
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} else {
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cmd = Command::new("cargo");
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cmd.args(["run", "-q", "--bin", "test"]);
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// In normal cases where the host and target are the same this won't matter,
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// but tests will fail if you are eg running in a cross container which will
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// likely be x86_64 but may be targetting aarch64 or i686, which will result
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// in tests failing, or at the least not testing what you think
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cmd.args(["--target", current_platform::CURRENT_PLATFORM, "--"]);
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}
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cmd.env("RUST_BACKTRACE", "1");
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cmd
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}
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#[allow(unused)]
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pub fn spawn_child(command: &str, args: &[&str]) {
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let mut cmd = build_command();
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cmd.arg(command).args(args);
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let child = cmd.output().expect("failed to execute child");
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println!("Child output:");
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std::io::stdout().write_all(&child.stdout).unwrap();
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std::io::stdout().write_all(&child.stderr).unwrap();
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assert_eq!(child.status.code().expect("No return value"), 0);
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}
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fn start_child_and_wait_for_threads_helper(command: &str, num: usize) -> Child {
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let mut cmd = build_command();
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cmd.arg(command).arg(num.to_string());
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cmd.stdout(Stdio::piped());
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let mut child = cmd.spawn().expect("failed to spawn cargo");
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wait_for_threads(&mut child, num);
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child
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}
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#[allow(unused)]
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pub fn start_child_and_wait_for_threads(num: usize) -> Child {
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start_child_and_wait_for_threads_helper("spawn_and_wait", num)
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}
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#[allow(unused)]
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pub fn start_child_and_wait_for_named_threads(num: usize) -> Child {
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start_child_and_wait_for_threads_helper("spawn_name_wait", num)
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}
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#[allow(unused)]
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pub fn start_child_and_wait_for_create_files(num: usize) -> Child {
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start_child_and_wait_for_threads_helper("create_files_wait", num)
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}
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#[allow(unused)]
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pub fn wait_for_threads(child: &mut Child, num: usize) {
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let mut f = BufReader::new(child.stdout.as_mut().expect("Can't open stdout"));
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let mut lines = 0;
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while lines < num {
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let mut buf = String::new();
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match f.read_line(&mut buf) {
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Ok(_) => {
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if buf == "1\n" {
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lines += 1;
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}
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}
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Err(e) => {
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std::panic::panic_any(e);
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}
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}
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}
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}
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#[allow(unused)]
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pub fn start_child_and_return(args: &[&str]) -> Child {
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let mut cmd = build_command();
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cmd.args(args);
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cmd.stdout(Stdio::piped())
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.spawn()
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.expect("failed to execute child")
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}
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#[allow(unused)]
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pub fn read_minidump_soft_errors_or_panic<'a, T>(
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dump: &minidump::Minidump<'a, T>,
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) -> serde_json::Value
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where
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T: std::ops::Deref<Target = [u8]> + 'a,
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{
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let contents = std::str::from_utf8(
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dump.get_raw_stream(minidump_common::format::MINIDUMP_STREAM_TYPE::MozSoftErrors.into())
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.expect("missing soft error stream"),
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)
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.expect("expected utf-8 stream");
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serde_json::from_str(contents).expect("expected json")
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}
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#[allow(unused)]
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pub fn assert_soft_errors_in_minidump<'a, 'b, T, I>(
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dump: &minidump::Minidump<'a, T>,
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expected_errors: I,
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) where
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T: std::ops::Deref<Target = [u8]> + 'a,
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I: IntoIterator<Item = &'b serde_json::Value>,
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{
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let actual_json = read_minidump_soft_errors_or_panic(dump);
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let actual_errors = actual_json.as_array().unwrap();
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// Ensure that every error we expect is in the actual list somewhere
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for expected_error in expected_errors {
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assert!(actual_errors
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.iter()
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.any(|actual_error| actual_error == expected_error));
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}
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}
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