nushell/tests/helpers/mod.rs

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#![allow(dead_code)]
use glob::glob;
pub use std::path::Path;
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pub use std::path::PathBuf;
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use app_dirs::{get_app_root, AppDataType};
use getset::Getters;
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use std::io::Read;
use tempfile::{tempdir, TempDir};
pub trait DisplayPath {
fn display_path(&self) -> String;
}
impl DisplayPath for PathBuf {
fn display_path(&self) -> String {
self.display().to_string()
}
}
impl DisplayPath for str {
fn display_path(&self) -> String {
self.to_string()
}
}
impl DisplayPath for &str {
fn display_path(&self) -> String {
self.to_string()
}
}
impl DisplayPath for String {
fn display_path(&self) -> String {
self.clone()
}
}
impl DisplayPath for &String {
fn display_path(&self) -> String {
self.to_string()
}
}
impl DisplayPath for nu::AbsolutePath {
fn display_path(&self) -> String {
self.to_string()
}
}
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#[macro_export]
macro_rules! nu {
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(cwd: $cwd:expr, $path:expr, $($part:expr),*) => {{
use $crate::helpers::DisplayPath;
let path = format!($path, $(
$part.display_path()
),*);
nu!($cwd, &path)
}};
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(cwd: $cwd:expr, $path:expr) => {{
nu!($cwd, $path)
}};
($cwd:expr, $path:expr) => {{
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pub use std::error::Error;
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pub use std::io::prelude::*;
pub use std::process::{Command, Stdio};
let commands = &*format!(
"
cd {}
{}
exit",
$crate::helpers::in_directory($cwd),
$crate::helpers::DisplayPath::display_path(&$path)
);
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let mut process = match Command::new(helpers::executable_path())
.stdin(Stdio::piped())
.stdout(Stdio::piped())
.spawn()
{
Ok(child) => child,
Err(why) => panic!("Can't run test {}", why.description()),
};
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let stdin = process.stdin.as_mut().expect("couldn't open stdin");
stdin
.write_all(commands.as_bytes())
.expect("couldn't write to stdin");
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let output = process
.wait_with_output()
.expect("couldn't read from stdout");
let out = String::from_utf8_lossy(&output.stdout);
let out = out.replace("\r\n", "");
let out = out.replace("\n", "");
out
}};
}
#[macro_export]
macro_rules! nu_error {
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(cwd: $cwd:expr, $path:expr, $($part:expr),*) => {{
use $crate::helpers::DisplayPath;
let path = format!($path, $(
$part.display_path()
),*);
nu_error!($cwd, &path)
}};
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(cwd: $cwd:expr, $path:expr) => {{
nu_error!($cwd, $path)
}};
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($cwd:expr, $path:expr) => {{
pub use std::error::Error;
pub use std::io::prelude::*;
pub use std::process::{Command, Stdio};
let commands = &*format!(
"
cd {}
{}
exit",
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$crate::helpers::in_directory($cwd),
$crate::helpers::DisplayPath::display_path(&$path)
);
let mut process = Command::new(helpers::executable_path())
.stdin(Stdio::piped())
.stderr(Stdio::piped())
.spawn()
.expect("couldn't run test");
let stdin = process.stdin.as_mut().expect("couldn't open stdin");
stdin
.write_all(commands.as_bytes())
.expect("couldn't write to stdin");
let output = process
.wait_with_output()
.expect("couldn't read from stderr");
let out = String::from_utf8_lossy(&output.stderr);
out.into_owned()
}};
}
pub enum Stub<'a> {
FileWithContent(&'a str, &'a str),
FileWithContentToBeTrimmed(&'a str, &'a str),
EmptyFile(&'a str),
}
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pub struct Playground {
root: TempDir,
tests: String,
cwd: PathBuf,
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}
#[derive(Getters)]
#[get = "pub"]
pub struct Dirs {
pub root: PathBuf,
pub test: PathBuf,
pub fixtures: PathBuf,
}
impl Dirs {
pub fn formats(&self) -> PathBuf {
PathBuf::from(self.fixtures.join("formats"))
}
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pub fn config_path(&self) -> PathBuf {
get_app_root(AppDataType::UserConfig, &nu::APP_INFO).unwrap()
}
}
impl Playground {
pub fn root(&self) -> &Path {
self.root.path()
}
pub fn back_to_playground(&mut self) -> &mut Self {
self.cwd = PathBuf::from(self.root()).join(self.tests.clone());
self
}
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pub fn setup(topic: &str, block: impl FnOnce(Dirs, &mut Playground)) {
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let root = tempdir().expect("Couldn't create a tempdir");
let nuplay_dir = root.path().join(topic);
if PathBuf::from(&nuplay_dir).exists() {
std::fs::remove_dir_all(PathBuf::from(&nuplay_dir)).expect("can not remove directory");
}
std::fs::create_dir(PathBuf::from(&nuplay_dir)).expect("can not create directory");
let mut playground = Playground {
root: root,
tests: topic.to_string(),
cwd: nuplay_dir,
};
let project_root = PathBuf::from(env!("CARGO_MANIFEST_DIR"));
let playground_root = playground.root.path();
let fixtures = project_root.join(file!());
let fixtures = fixtures
.parent()
.expect("Couldn't find the fixtures directory")
.parent()
.expect("Couldn't find the fixtures directory")
.join("fixtures");
let fixtures = dunce::canonicalize(fixtures.clone()).expect(&format!(
"Couldn't canonicalize fixtures path {}",
fixtures.display()
));
let test =
dunce::canonicalize(PathBuf::from(playground_root.join(topic))).expect(&format!(
"Couldn't canonicalize test path {}",
playground_root.join(topic).display()
));
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let root = dunce::canonicalize(playground_root).expect(&format!(
"Couldn't canonicalize tests root path {}",
playground_root.display()
));
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let dirs = Dirs {
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root,
test,
fixtures,
};
block(dirs, &mut playground);
}
pub fn mkdir(&mut self, directory: &str) -> &mut Self {
self.cwd.push(directory);
std::fs::create_dir_all(&self.cwd).expect("can not create directory");
self.back_to_playground();
self
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}
pub fn with_files(&mut self, files: Vec<Stub>) -> &mut Self {
let endl = line_ending();
files
.iter()
.map(|f| {
let mut path = PathBuf::from(&self.cwd);
let (file_name, contents) = match *f {
Stub::EmptyFile(name) => (name, "fake data".to_string()),
Stub::FileWithContent(name, content) => (name, content.to_string()),
Stub::FileWithContentToBeTrimmed(name, content) => (
name,
content
.lines()
.skip(1)
.map(|line| line.trim())
.collect::<Vec<&str>>()
.join(&endl),
),
};
path.push(file_name);
std::fs::write(PathBuf::from(path), contents.as_bytes())
.expect("can not create file");
})
.for_each(drop);
self.back_to_playground();
self
}
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pub fn within(&mut self, directory: &str) -> &mut Self {
self.cwd.push(directory);
std::fs::create_dir(&self.cwd).expect("can not create directory");
self
}
pub fn glob_vec(pattern: &str) -> Vec<PathBuf> {
let glob = glob(pattern);
match glob {
Ok(paths) => paths
.map(|path| {
if let Ok(path) = path {
path
} else {
unreachable!()
}
})
.collect(),
Err(_) => panic!("Invalid pattern."),
}
}
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}
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pub fn file_contents(full_path: impl AsRef<Path>) -> String {
let mut file = std::fs::File::open(full_path.as_ref()).expect("can not open file");
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let mut contents = String::new();
file.read_to_string(&mut contents)
.expect("can not read file");
contents
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}
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pub fn file_contents_binary(full_path: impl AsRef<Path>) -> Vec<u8> {
let mut file = std::fs::File::open(full_path.as_ref()).expect("can not open file");
let mut contents = Vec::new();
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file.read_to_end(&mut contents).expect("can not read file");
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contents
}
pub fn line_ending() -> String {
#[cfg(windows)]
{
String::from("\r\n")
}
#[cfg(not(windows))]
{
String::from("\n")
}
}
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pub fn delete_file_at(full_path: impl AsRef<Path>) {
let full_path = full_path.as_ref();
if full_path.exists() {
std::fs::remove_file(full_path).expect("can not delete file");
}
}
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pub fn create_file_at(full_path: impl AsRef<Path>) -> Result<(), std::io::Error> {
let full_path = full_path.as_ref();
if let Some(parent) = full_path.parent() {
panic!(format!("{:?} exists", parent.display()));
}
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std::fs::write(full_path, "fake data".as_bytes())
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}
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pub fn copy_file_to(source: &str, destination: &str) {
std::fs::copy(source, destination).expect("can not copy file");
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}
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pub fn files_exist_at(files: Vec<impl AsRef<Path>>, path: impl AsRef<Path>) -> bool {
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files.iter().all(|f| {
let mut loc = PathBuf::from(path.as_ref());
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loc.push(f);
loc.exists()
})
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}
pub fn delete_directory_at(full_path: &str) {
std::fs::remove_dir_all(PathBuf::from(full_path)).expect("can not remove directory");
}
pub fn executable_path() -> PathBuf {
let mut buf = PathBuf::new();
buf.push("target");
buf.push("debug");
buf.push("nu");
buf
}
pub fn in_directory(str: impl AsRef<Path>) -> String {
str.as_ref().display().to_string()
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}
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pub fn pipeline(commands: &str) -> String {
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commands
.lines()
.skip(1)
.map(|line| line.trim())
.collect::<Vec<&str>>()
.join(" ")
.trim_end()
.to_string()
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}