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|
//! Test utilities for the Breezy Rust bindings.
use pyo3::prelude::*;
use std::collections::HashMap;
use std::fs;
use std::path::PathBuf;
use tempfile::TempDir;
/// Environment for running Breezy tests.
///
/// This struct sets up a temporary environment for running Breezy tests,
/// including temporary directories and environment variables, and cleans
/// up after itself when dropped.
pub struct TestEnv {
/// The temporary directory that contains all test files.
pub temp_dir: TempDir,
/// The working directory where tests will run.
pub working_dir: PathBuf,
/// The home directory for the test environment.
pub home_dir: PathBuf,
/// The original working directory before the test environment was set up.
pub old_cwd: Option<PathBuf>,
/// The original environment variables before the test environment was set up.
pub old_env: HashMap<String, Option<String>>,
}
impl TestEnv {
/// Create a new testing environment.
///
/// This sets up a temporary directory structure with a working directory
/// and home directory, and configures environment variables for Breezy.
///
/// # Returns
///
/// A new TestEnv instance
pub fn new() -> Self {
// Ensure Python and Breezy are initialized
crate::init();
let temp_dir = TempDir::new().unwrap();
let working_dir = temp_dir.path().join("test");
fs::create_dir(&working_dir).unwrap();
let home_dir = temp_dir.path().join("home");
fs::create_dir(&home_dir).unwrap();
let mut old_env = HashMap::new();
let old_cwd = std::env::current_dir().ok();
old_env.insert("HOME".to_string(), std::env::var("HOME").ok());
old_env.insert("BRZ_EMAIL".to_string(), std::env::var("BRZ_EMAIL").ok());
old_env.insert("BRZ_HOME".to_string(), std::env::var("BRZ_HOME").ok());
let brz_email = "Joe Tester <joe@example.com>";
let breezy_home = home_dir.join(".config/breezy");
std::env::set_current_dir(&working_dir).unwrap();
std::env::set_var("HOME", &home_dir);
std::env::set_var("BRZ_EMAIL", brz_email);
std::env::set_var("BRZ_HOME", &breezy_home);
pyo3::Python::attach(|py| {
let os = py.import("os").unwrap();
os.call_method1("chdir", (working_dir.to_str().unwrap(),))
.unwrap();
let environ = os.getattr("environ").unwrap();
environ
.set_item("HOME", home_dir.to_str().unwrap())
.unwrap();
environ.set_item("BRZ_EMAIL", brz_email).unwrap();
environ
.set_item("BRZ_HOME", breezy_home.to_str().unwrap())
.unwrap();
});
fs::create_dir_all(&breezy_home).unwrap();
fs::write(
breezy_home.join("breezy.conf"),
r#"
[DEFAULT]
email = Joe Tester <joe@example.com>
"#,
)
.unwrap();
Self {
temp_dir,
home_dir,
working_dir,
old_cwd,
old_env,
}
}
}
impl Drop for TestEnv {
fn drop(&mut self) {
for (key, value) in self.old_env.drain() {
if let Some(value) = value.as_ref() {
std::env::set_var(&key, value);
} else {
std::env::remove_var(&key);
}
Python::attach(|py| {
let os = py.import("os").unwrap();
let environ = os.getattr("environ").unwrap();
if let Some(value) = value {
environ.set_item(key, value).unwrap();
} else {
environ.del_item(key).unwrap();
}
});
}
if let Some(ref old_cwd) = self.old_cwd {
let _ = std::env::set_current_dir(old_cwd);
}
}
}
impl Default for TestEnv {
fn default() -> Self {
Self::new()
}
}
#[cfg(test)]
mod tests {
use super::*;
use serial_test::serial;
#[test]
#[serial]
fn test_testenv() {
let env = TestEnv::new();
assert_eq!(env.home_dir, env.temp_dir.path().join("home"));
assert_eq!(env.working_dir, env.temp_dir.path().join("test"));
// On Windows, canonicalize() can add \\?\ prefix and resolve short names differently
// So we compare the canonicalized versions of both paths
assert_eq!(
std::env::current_dir().unwrap().canonicalize().unwrap(),
env.working_dir.canonicalize().unwrap()
);
assert_eq!(
std::env::var("HOME").unwrap(),
env.home_dir.to_str().unwrap()
);
assert_eq!(
std::env::var("BRZ_EMAIL").unwrap(),
"Joe Tester <joe@example.com>"
);
Python::attach(|py| {
let os = py.import("os").unwrap();
// On Windows, canonicalize both paths to handle short/long names and \\?\ prefix
let py_cwd = os
.call_method0("getcwd")
.unwrap()
.extract::<PathBuf>()
.unwrap();
assert_eq!(
py_cwd.canonicalize().unwrap(),
env.working_dir.canonicalize().unwrap(),
);
assert_eq!(
os.call_method1("getenv", ("HOME",))
.unwrap()
.extract::<String>()
.unwrap(),
env.home_dir.to_str().unwrap()
);
assert_eq!(
os.call_method1("getenv", ("BRZ_EMAIL",))
.unwrap()
.extract::<String>()
.unwrap(),
"Joe Tester <joe@example.com>"
);
});
}
}
|
