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// Copyright (c) The diem-devtools Contributors
// SPDX-License-Identifier: MIT OR Apache-2.0

use owo_colors::{OwoColorize, Style};
use std::io::{self, Write};

/// Write out a test name.
pub(crate) fn write_test_name(name: &str, style: Style, mut writer: impl Write) -> io::Result<()> {
    // Look for the part of the test after the last ::, if any.
    let mut splits = name.rsplitn(2, "::");
    let trailing = splits.next().expect("test should have at least 1 element");
    if let Some(rest) = splits.next() {
        write!(writer, "{}::", rest)?;
    }
    write!(writer, "{}", trailing.style(style))?;

    Ok(())
}