mirror of
https://github.com/rust-lang/cargo
synced 2024-08-25 10:35:53 +00:00
339 lines
8.7 KiB
Rust
339 lines
8.7 KiB
Rust
use std::env;
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use std::fs::{self, File};
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use std::io::prelude::*;
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use std::path::{Path, PathBuf};
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use std::str;
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use crate::support::cargo_process;
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use crate::support::paths::{self, CargoPathExt};
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use crate::support::registry::Package;
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use crate::support::{basic_bin_manifest, basic_manifest, cargo_exe, project, Project};
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use cargo;
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#[cfg_attr(windows, allow(dead_code))]
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enum FakeKind<'a> {
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Executable,
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Symlink { target: &'a Path },
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}
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/// Adds an empty file with executable flags (and platform-dependent suffix).
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//
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// TODO: move this to `Project` if other cases using this emerge.
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fn fake_file(proj: Project, dir: &Path, name: &str, kind: &FakeKind<'_>) -> Project {
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let path = proj
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.root()
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.join(dir)
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.join(&format!("{}{}", name, env::consts::EXE_SUFFIX));
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path.parent().unwrap().mkdir_p();
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match *kind {
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FakeKind::Executable => {
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File::create(&path).unwrap();
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make_executable(&path);
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}
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FakeKind::Symlink { target } => {
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make_symlink(&path, target);
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}
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}
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return proj;
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#[cfg(unix)]
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fn make_executable(p: &Path) {
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use std::os::unix::prelude::*;
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let mut perms = fs::metadata(p).unwrap().permissions();
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let mode = perms.mode();
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perms.set_mode(mode | 0o111);
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fs::set_permissions(p, perms).unwrap();
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}
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#[cfg(windows)]
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fn make_executable(_: &Path) {}
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#[cfg(unix)]
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fn make_symlink(p: &Path, t: &Path) {
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::std::os::unix::fs::symlink(t, p).expect("Failed to create symlink");
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}
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#[cfg(windows)]
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fn make_symlink(_: &Path, _: &Path) {
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panic!("Not supported")
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}
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}
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fn path() -> Vec<PathBuf> {
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env::split_paths(&env::var_os("PATH").unwrap_or_default()).collect()
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}
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#[test]
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fn list_commands_with_descriptions() {
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let p = project().build();
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p.cargo("--list")
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.with_stdout_contains(
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" build Compile a local package and all of its dependencies",
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)
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// Assert that `read-manifest` prints the right one-line description followed by another
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// command, indented.
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.with_stdout_contains(
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" read-manifest Print a JSON representation of a Cargo.toml manifest.",
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)
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.run();
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}
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#[test]
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fn list_command_looks_at_path() {
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let proj = project().build();
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let proj = fake_file(
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proj,
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Path::new("path-test"),
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"cargo-1",
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&FakeKind::Executable,
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);
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let mut path = path();
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path.push(proj.root().join("path-test"));
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let path = env::join_paths(path.iter()).unwrap();
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let output = cargo_process("-v --list")
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.env("PATH", &path)
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.exec_with_output()
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.unwrap();
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let output = str::from_utf8(&output.stdout).unwrap();
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assert!(
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output.contains("\n 1 "),
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"missing 1: {}",
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output
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);
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}
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// Windows and symlinks don't currently mix well.
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#[cfg(unix)]
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#[test]
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fn list_command_resolves_symlinks() {
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let proj = project().build();
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let proj = fake_file(
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proj,
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Path::new("path-test"),
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"cargo-2",
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&FakeKind::Symlink {
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target: &cargo_exe(),
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},
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);
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let mut path = path();
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path.push(proj.root().join("path-test"));
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let path = env::join_paths(path.iter()).unwrap();
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let output = cargo_process("-v --list")
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.env("PATH", &path)
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.exec_with_output()
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.unwrap();
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let output = str::from_utf8(&output.stdout).unwrap();
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assert!(
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output.contains("\n 2 "),
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"missing 2: {}",
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output
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);
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}
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#[test]
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fn find_closest_biuld_to_build() {
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cargo_process("biuld")
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.with_status(101)
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.with_stderr_contains(
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"\
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error: no such subcommand: `biuld`
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<tab>Did you mean `build`?
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",
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)
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.run();
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// But, if we actually have `biuld`, it must work!
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// https://github.com/rust-lang/cargo/issues/5201
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Package::new("cargo-biuld", "1.0.0")
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.file(
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"src/main.rs",
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r#"
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fn main() {
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println!("Similar, but not identical to, build");
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}
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"#,
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)
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.publish();
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cargo_process("install cargo-biuld").run();
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cargo_process("biuld")
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.with_stdout("Similar, but not identical to, build\n")
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.run();
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cargo_process("--list")
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.with_stdout_contains(
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" build Compile a local package and all of its dependencies\n",
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)
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.with_stdout_contains(" biuld\n")
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.run();
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}
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// If a subcommand is more than an edit distance of 3 away, we don't make a suggestion.
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#[test]
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fn find_closest_dont_correct_nonsense() {
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cargo_process("there-is-no-way-that-there-is-a-command-close-to-this")
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.cwd(&paths::root())
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.with_status(101)
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.with_stderr(
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"[ERROR] no such subcommand: \
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`there-is-no-way-that-there-is-a-command-close-to-this`
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",
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)
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.run();
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}
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#[test]
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fn displays_subcommand_on_error() {
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cargo_process("invalid-command")
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.with_status(101)
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.with_stderr("[ERROR] no such subcommand: `invalid-command`\n")
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.run();
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}
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#[test]
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fn override_cargo_home() {
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let root = paths::root();
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let my_home = root.join("my_home");
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fs::create_dir(&my_home).unwrap();
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File::create(&my_home.join("config"))
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.unwrap()
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.write_all(
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br#"
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[cargo-new]
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name = "foo"
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email = "bar"
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git = false
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"#,
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)
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.unwrap();
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cargo_process("new foo")
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.env("USER", "foo")
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.env("CARGO_HOME", &my_home)
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.run();
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let toml = paths::root().join("foo/Cargo.toml");
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let mut contents = String::new();
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File::open(&toml)
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.unwrap()
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.read_to_string(&mut contents)
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.unwrap();
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assert!(contents.contains(r#"authors = ["foo <bar>"]"#));
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}
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#[test]
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fn cargo_subcommand_env() {
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let src = format!(
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r#"
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use std::env;
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fn main() {{
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println!("{{}}", env::var("{}").unwrap());
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}}
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"#,
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cargo::CARGO_ENV
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);
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let p = project()
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.at("cargo-envtest")
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.file("Cargo.toml", &basic_bin_manifest("cargo-envtest"))
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.file("src/main.rs", &src)
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.build();
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let target_dir = p.target_debug_dir();
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p.cargo("build").run();
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assert!(p.bin("cargo-envtest").is_file());
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let cargo = cargo_exe().canonicalize().unwrap();
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let mut path = path();
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path.push(target_dir);
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let path = env::join_paths(path.iter()).unwrap();
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cargo_process("envtest")
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.env("PATH", &path)
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.with_stdout(cargo.to_str().unwrap())
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.run();
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}
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#[test]
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fn cargo_subcommand_args() {
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let p = project()
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.at("cargo-foo")
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.file("Cargo.toml", &basic_manifest("cargo-foo", "0.0.1"))
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.file(
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"src/main.rs",
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r#"
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fn main() {
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let args: Vec<_> = ::std::env::args().collect();
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println!("{:?}", args);
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}
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"#,
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)
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.build();
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p.cargo("build").run();
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let cargo_foo_bin = p.bin("cargo-foo");
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assert!(cargo_foo_bin.is_file());
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let mut path = path();
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path.push(p.target_debug_dir());
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let path = env::join_paths(path.iter()).unwrap();
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cargo_process("foo bar -v --help")
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.env("PATH", &path)
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.with_stdout(
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r#"["[CWD]/cargo-foo/target/debug/cargo-foo[EXE]", "foo", "bar", "-v", "--help"]"#,
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)
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.run();
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}
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#[test]
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fn cargo_help() {
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cargo_process("").run();
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cargo_process("help").run();
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cargo_process("-h").run();
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cargo_process("help build").run();
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cargo_process("build -h").run();
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cargo_process("help help").run();
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}
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#[test]
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fn cargo_help_external_subcommand() {
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Package::new("cargo-fake-help", "1.0.0")
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.file(
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"src/main.rs",
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r#"
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fn main() {
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if ::std::env::args().nth(2) == Some(String::from("--help")) {
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println!("fancy help output");
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}
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}"#,
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)
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.publish();
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cargo_process("install cargo-fake-help").run();
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cargo_process("help fake-help")
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.with_stdout("fancy help output\n")
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.run();
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}
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#[test]
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fn explain() {
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cargo_process("--explain E0001")
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.with_stdout_contains(
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"This error suggests that the expression arm corresponding to the noted pattern",
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)
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.run();
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}
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// Test that the output of `cargo -Z help` shows a different help screen with
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// all the `-Z` flags.
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#[test]
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fn z_flags_help() {
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cargo_process("-Z help")
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.with_stdout_contains(
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" -Z unstable-options -- Allow the usage of unstable options such as --registry",
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)
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.run();
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}
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