test/formatters/
mod.rs

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use std::io;
use std::io::prelude::Write;

use crate::console::{ConsoleTestDiscoveryState, ConsoleTestState};
use crate::test_result::TestResult;
use crate::time;
use crate::types::{TestDesc, TestName};

mod json;
mod junit;
mod pretty;
mod terse;

pub(crate) use self::json::JsonFormatter;
pub(crate) use self::junit::JunitFormatter;
pub(crate) use self::pretty::PrettyFormatter;
pub(crate) use self::terse::TerseFormatter;

pub(crate) trait OutputFormatter {
    fn write_discovery_start(&mut self) -> io::Result<()>;
    fn write_test_discovered(&mut self, desc: &TestDesc, test_type: &str) -> io::Result<()>;
    fn write_discovery_finish(&mut self, state: &ConsoleTestDiscoveryState) -> io::Result<()>;

    fn write_run_start(&mut self, test_count: usize, shuffle_seed: Option<u64>) -> io::Result<()>;
    fn write_test_start(&mut self, desc: &TestDesc) -> io::Result<()>;
    fn write_timeout(&mut self, desc: &TestDesc) -> io::Result<()>;
    fn write_result(
        &mut self,
        desc: &TestDesc,
        result: &TestResult,
        exec_time: Option<&time::TestExecTime>,
        stdout: &[u8],
        state: &ConsoleTestState,
    ) -> io::Result<()>;
    fn write_run_finish(&mut self, state: &ConsoleTestState) -> io::Result<bool>;
}

pub(crate) fn write_stderr_delimiter(test_output: &mut Vec<u8>, test_name: &TestName) {
    match test_output.last() {
        Some(b'\n') => (),
        Some(_) => test_output.push(b'\n'),
        None => (),
    }
    writeln!(test_output, "---- {test_name} stderr ----").unwrap();
}