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use std::path::Path;
use colored::Colorize;
use indicatif::ProgressBar;
use serde::Deserialize;
use tools::{eprintln_cargo_style, println_cargo_style, run_parallel};
/// An example's `test.toml` (`[[runs]]` entries).
#[derive(Deserialize)]
struct TestConfig {
runs: Vec<TestCase>,
}
/// A single `[[runs]]` entry of an example's `test.toml`.
#[derive(Deserialize)]
struct TestCase {
input: Vec<String>,
expect: Expect,
}
#[derive(Deserialize)]
struct Expect {
#[serde(rename = "exit-code")]
exit_code: i32,
result: String,
}
fn main() {
#[cfg(windows)]
let _ = colored::control::set_virtual_terminal(true);
let configs = load_all_test_configs();
// Phase 1: build all examples in parallel.
if let Err(code) = build_all_examples(&configs) {
// `run_parallel` already printed every failed build above.
std::process::exit(code);
}
// Phase 2: run the tests serially against the pre-built binaries.
let total: usize = configs.iter().map(|(_, cases)| cases.len()).sum();
let bar = ProgressBar::new(total as u64);
bar.set_style(
indicatif::ProgressStyle::default_bar()
.template(&format!(
"{} [{{bar:28}}] {{pos}}/{{len}}: {{msg}}",
" Testing".bold().bright_cyan()
))
.unwrap()
.progress_chars("=> "),
);
bar.set_message("examples");
let passed = run_all_tests(&configs, &bar);
bar.finish_and_clear();
println_cargo_style!("Result: {}/{} tests passed", passed, total);
if passed != total {
eprintln_cargo_style!("{} test(s) failed", total - passed);
std::process::exit(1);
}
}
/// Load `examples/<name>/test.toml` for every example that has one, in
/// alphabetical order of the example directory name.
fn load_all_test_configs() -> Vec<(String, Vec<TestCase>)> {
let examples_dir = Path::new("examples");
let mut configs = Vec::new();
let entries = std::fs::read_dir(examples_dir).unwrap_or_else(|e| {
eprintln_cargo_style!("Failed to read examples dir: {}", e);
std::process::exit(1);
});
for entry in entries.flatten() {
let path = entry.path();
if !path.is_dir() {
continue;
}
let test_toml = path.join("test.toml");
if !test_toml.is_file() {
continue;
}
let name = path
.file_name()
.and_then(|n| n.to_str())
.unwrap_or_default()
.to_string();
let content = std::fs::read_to_string(&test_toml).unwrap_or_else(|e| {
eprintln_cargo_style!("Failed to read {}: {}", test_toml.display(), e);
std::process::exit(1);
});
let config: TestConfig = toml::from_str(&content).unwrap_or_else(|e| {
eprintln_cargo_style!("Failed to parse {}: {}", test_toml.display(), e);
std::process::exit(1);
});
configs.push((name, config.runs));
}
configs.sort_by(|a, b| a.0.cmp(&b.0));
configs
}
/// Phase 1: build every example that has a `test.toml` in parallel.
///
/// Build tasks are spawned in parallel (like `ci.rs`'s `build_all`); on any
/// build failure the whole run aborts with the first failure's exit code.
fn build_all_examples(configs: &[(String, Vec<TestCase>)]) -> Result<(), i32> {
let tasks: Vec<(String, String, String)> = configs
.iter()
.map(|(name, _)| {
(
format!("Build: {name}"),
name.clone(),
format!("cargo build --manifest-path examples/{name}/Cargo.toml --color always"),
)
})
.collect();
run_parallel("Building", tasks)
}
/// Phase 2: run all example test groups serially, return number passed
fn run_all_tests(configs: &[(String, Vec<TestCase>)], bar: &ProgressBar) -> usize {
let mut passed = 0;
for (example_name, test_cases) in configs {
bar.set_message(example_name.clone());
for test_case in test_cases {
if run_single_test(example_name, test_case, bar) {
passed += 1;
}
bar.inc(1);
}
}
passed
}
/// Run a single test case, return true on pass
fn run_single_test(example_name: &str, test_case: &TestCase, bar: &ProgressBar) -> bool {
let binary_path = format!(".temp/target/debug/{}", get_binary_name(example_name));
let command = test_case.input.join(" ");
let output = match std::process::Command::new(&binary_path)
.args(&test_case.input)
.output()
{
Ok(o) => o,
Err(e) => {
bar.println(format!("'{command}' - failed to run: {e}"));
return false;
}
};
let actual_exit_code = output.status.code().unwrap_or(-1);
let actual_stdout = String::from_utf8_lossy(&output.stdout).trim().to_string();
let actual_stderr = String::from_utf8_lossy(&output.stderr).trim().to_string();
let exit_ok = actual_exit_code == test_case.expect.exit_code;
let result_ok = actual_stdout == test_case.expect.result
|| actual_stdout.contains(&test_case.expect.result);
if exit_ok && result_ok {
true
} else {
bar.println(format!("failed: '{command}'"));
if !exit_ok {
bar.println(format!(
" Expected exit code: {}, actual: {}",
test_case.expect.exit_code, actual_exit_code
));
}
if !result_ok {
bar.println(format!(" Expected output: {:?}", test_case.expect.result));
bar.println(format!(" Actual stdout: {:?}", actual_stdout));
if !actual_stderr.is_empty() {
bar.println(format!(" Actual stderr: {:?}", actual_stderr));
}
}
false
}
}
/// Resolve binary filename for the given example
///
/// The binary name matches the package name. On Windows, the `.exe` suffix is required.
fn get_binary_name(example_name: &str) -> String {
let base = example_name;
if cfg!(target_os = "windows") {
format!("{base}.exe")
} else {
base.to_string()
}
}
|
