test-r-core 6.0.4

mod ctrf;
mod ipc;
mod json;
mod junit;
mod pretty;
mod term_progress;
mod terse;

use crate::args::{Arguments, FormatSetting};
use crate::internal::{RegisteredTest, TestResult};
use std::io::{Seek, SeekFrom, Write};
use std::path::PathBuf;
use std::sync::Arc;
use std::time::Duration;

pub trait TestRunnerOutput: Send + Sync {
    fn start_suite(&self, tests: &[RegisteredTest]);
    fn start_running_test(&self, test: &RegisteredTest, idx: usize, count: usize);
    fn repeat_running_test(
        &self,
        test: &RegisteredTest,
        idx: usize,
        count: usize,
        attempt: usize,
        max_attempts: usize,
        reason: &str,
    );
    fn finished_running_test(
        &self,
        test: &RegisteredTest,
        idx: usize,
        count: usize,
        result: &TestResult,
    );
    fn finished_suite(
        &self,
        registered_tests: &[RegisteredTest],
        results: &[(RegisteredTest, TestResult)],
        exec_time: Duration,
    );
    fn test_list(&self, registered_tests: &[RegisteredTest]);

    fn warning(&self, message: &str) {
        eprintln!("{message}");
    }
}

pub(crate) fn write_failure_summary_to_stderr(
    results: &[(RegisteredTest, TestResult)],
    exec_time: Duration,
) {
    let failed: Vec<_> = results
        .iter()
        .filter(|(_, result)| result.is_failed())
        .collect();
    if failed.is_empty() {
        return;
    }
    let passed = results
        .iter()
        .filter(|(_, result)| result.is_passed() || result.is_benchmarked())
        .count();
    let ignored = results
        .iter()
        .filter(|(_, result)| result.is_ignored())
        .count();

    eprintln!();
    eprintln!(
        "test result: FAILED; {} passed; {} failed; {} ignored; finished in {:.3}s",
        passed,
        failed.len(),
        ignored,
        exec_time.as_secs_f64()
    );
    eprintln!();
    eprintln!("Failed tests:");
    for (test, result) in &failed {
        eprintln!(
            " - {} ({})",
            test.fully_qualified_name(),
            result.failure_message().as_deref().unwrap_or("???"),
        );
    }
    eprintln!();
}

pub fn test_runner_output(args: &Arguments) -> Arc<dyn TestRunnerOutput> {
    if args.ipc.is_some() {
        Arc::new(ipc::IpcWorkerOutput::new())
    } else if args.quiet {
        Arc::new(terse::Terse::new())
    } else {
        let logfile = args.logfile.as_ref().map(PathBuf::from);
        match args.format.unwrap_or_default() {
            FormatSetting::Pretty => Arc::new(pretty::Pretty::new(
                args.color.unwrap_or_default(),
                args.show_output,
                logfile,
                args.report_time,
                args.unit_test_threshold(),
                args.integration_test_threshold(),
                args.show_stats,
            )),
            FormatSetting::Terse => Arc::new(terse::Terse::new()),
            FormatSetting::Json => Arc::new(json::Json::new(args.show_output, logfile)),
            FormatSetting::Junit => Arc::new(junit::JUnit::new(args.show_output, logfile)),
            FormatSetting::Ctrf => Arc::new(ctrf::Ctrf::new(args.show_output, logfile)),
        }
    }
}

struct LogFile {
    pub file: std::fs::File,
}

impl LogFile {
    fn new(mut path: PathBuf, merged: bool) -> Self {
        let cwd = std::env::current_dir().unwrap();
        if path.is_relative() {
            path = cwd.join(path);
        }

        if !path.parent().unwrap().exists() {
            std::fs::create_dir_all(path.parent().unwrap()).unwrap();
        }

        if !merged {
            // Because of https://github.com/rust-lang/rust/issues/105424 we have to generate a unique log file name
            // otherwise the core test runner will overwrite it
            let uuid = uuid::Uuid::new_v4();
            let stem = path
                .file_stem()
                .map(|s| s.to_string_lossy().to_string())
                .unwrap_or_default();
            let extension = path
                .extension()
                .map(|s| s.to_string_lossy().to_string())
                .unwrap_or_default();
            path.set_file_name(format!("{stem}-{uuid}.{extension}"));
        }

        eprintln!("Logging to {}", path.to_string_lossy());

        let file = std::fs::OpenOptions::new()
            .create(true)
            .append(true)
            .open(path.clone())
            .unwrap_or_else(|_| panic!("Failed to open log file {}", path.to_string_lossy()));
        LogFile { file }
    }
}

enum StdoutOrLogFile {
    Stdout(std::io::Stdout),
    LogFile(LogFile),
}

impl StdoutOrLogFile {
    fn reset_log_file(&mut self) -> std::io::Result<bool> {
        if let StdoutOrLogFile::LogFile(logfile) = self {
            logfile.file.set_len(0)?;
            logfile.file.seek(SeekFrom::Start(0))?;
            logfile.file.flush()?;
            Ok(true)
        } else {
            Ok(false)
        }
    }
}

impl Write for StdoutOrLogFile {
    fn write(&mut self, buf: &[u8]) -> std::io::Result<usize> {
        match self {
            StdoutOrLogFile::Stdout(stdout) => stdout.write(buf),
            StdoutOrLogFile::LogFile(logfile) => logfile.file.write(buf),
        }
    }

    fn flush(&mut self) -> std::io::Result<()> {
        match self {
            StdoutOrLogFile::Stdout(stdout) => stdout.flush(),
            StdoutOrLogFile::LogFile(logfile) => logfile.file.flush(),
        }
    }
}