use std::path::{Path, PathBuf};
use std::process::Command;
use std::sync::Once;
use std::sync::atomic::{AtomicUsize, Ordering};
use std::time::{SystemTime, UNIX_EPOCH};
static COUNTER: AtomicUsize = AtomicUsize::new(0);
static BUILD_ONCE: Once = Once::new();
fn bin_path() -> PathBuf {
if let Ok(exe) = std::env::var("CARGO_BIN_EXE_dcr") {
return PathBuf::from(exe);
}
ensure_bin_built();
let mut path = PathBuf::from(env!("CARGO_MANIFEST_DIR"));
path.push("target");
path.push("debug");
path.push(format!("dcr{}", std::env::consts::EXE_SUFFIX));
path
}
fn unique_sandbox_dir(prefix: &str) -> PathBuf {
let pid = std::process::id();
let n = COUNTER.fetch_add(1, Ordering::SeqCst);
let now = SystemTime::now()
.duration_since(UNIX_EPOCH)
.unwrap_or_default()
.as_nanos();
let mut path = PathBuf::from(env!("CARGO_MANIFEST_DIR"));
path.push("sandbox");
path.push("cli-tests");
path.push(format!("dcr_{prefix}_{pid}_{n}_{now}"));
std::fs::create_dir_all(&path).expect("failed to create temp dir");
path
}
fn run_dcr(args: &[&str], cwd: &Path) -> std::process::Output {
run_dcr_env(args, cwd, &[])
}
fn run_dcr_env(args: &[&str], cwd: &Path, envs: &[(&str, &str)]) -> std::process::Output {
let mut cmd = Command::new(bin_path());
cmd.args(args).current_dir(cwd);
for (k, v) in envs {
cmd.env(k, v);
}
cmd.output().expect("failed to run dcr")
}
fn ensure_bin_built() {
BUILD_ONCE.call_once(|| {
let status = Command::new("cargo")
.arg("build")
.current_dir(env!("CARGO_MANIFEST_DIR"))
.status()
.expect("failed to run cargo build");
assert!(status.success(), "cargo build failed");
});
}
fn available_compiler() -> Option<&'static str> {
for candidate in ["gcc", "clang", "cc"] {
let ok = Command::new(candidate)
.arg("--version")
.output()
.map(|o| o.status.success())
.unwrap_or(false);
if ok {
return Some(candidate);
}
}
None
}
#[test]
fn help_and_version_work() {
let dir = unique_sandbox_dir("help");
let out = run_dcr(&["--help"], &dir);
assert!(out.status.success(), "--help should succeed");
let out = run_dcr(&["--version"], &dir);
assert!(out.status.success(), "--version should succeed");
let stdout = String::from_utf8_lossy(&out.stdout);
assert!(stdout.contains("dcr"), "version output should mention dcr");
}
#[test]
fn new_creates_project_layout() {
let dir = unique_sandbox_dir("new");
let out = run_dcr(&["new", "hello"], &dir);
assert!(out.status.success(), "dcr new should succeed");
let project_dir = dir.join("hello");
assert!(project_dir.is_dir(), "project dir should exist");
assert!(project_dir.join("dcr.toml").is_file(), "dcr.toml missing");
assert!(
project_dir.join("src").join("main.c").is_file(),
"src/main.c missing"
);
}
#[test]
fn init_and_clean_remove_target() {
let dir = unique_sandbox_dir("init");
let out = run_dcr(&["init"], &dir);
assert!(out.status.success(), "dcr init should succeed");
let target_debug = dir.join("target").join("debug");
std::fs::create_dir_all(&target_debug).expect("failed to create target/debug");
std::fs::write(target_debug.join("dummy.o"), "x").expect("failed to write dummy file");
let out = run_dcr(&["clean"], &dir);
assert!(out.status.success(), "dcr clean should succeed");
assert!(!dir.join("target").exists(), "target should be removed");
}
#[test]
fn build_run_clean_flags_normal_project() {
let Some(compiler) = available_compiler() else {
eprintln!("no compiler found; skipping build/run test");
return;
};
let dir = unique_sandbox_dir("normal");
let out = run_dcr(&["init"], &dir);
assert!(out.status.success(), "dcr init should succeed");
let envs = [("DCR_COMPILER", compiler)];
let out = run_dcr_env(&["build"], &dir, &envs);
assert!(out.status.success(), "dcr build should succeed");
let out = run_dcr_env(&["build", "--release"], &dir, &envs);
assert!(out.status.success(), "dcr build --release should succeed");
let out = run_dcr_env(&["run"], &dir, &envs);
let stdout = String::from_utf8_lossy(&out.stdout);
assert!(stdout.contains("Running"), "dcr run should start");
let out = run_dcr_env(&["clean", "--release"], &dir, &envs);
assert!(out.status.success(), "dcr clean --release should succeed");
let target_dir = "target/x86_64-unknown-linux-gnu".to_string();
assert!(
!dir.join(&target_dir).join("release").exists(),
"target/x86_64-unknown-linux-gnu/release should be removed"
);
assert!(
dir.join(&target_dir).join("debug").is_dir(),
"target/x86_64-unknown-linux-gnu/debug should remain"
);
let out = run_dcr_env(&["clean"], &dir, &envs);
assert!(out.status.success(), "dcr clean should succeed");
assert!(!dir.join("target").exists(), "target should be removed");
}
#[test]
fn workspace_build_and_clean_all() {
let Some(compiler) = available_compiler() else {
eprintln!("no compiler found; skipping workspace test");
return;
};
let root = unique_sandbox_dir("workspace");
let out = run_dcr(&["init"], &root);
assert!(out.status.success(), "root init should succeed");
let members = [
("userspace", &[][..]),
("core", &["userspace"][..]),
("kernel", &["core"][..]),
];
for (name, _) in &members {
let member_dir = root.join("src").join(name);
std::fs::create_dir_all(&member_dir).expect("failed to create member dir");
let out = run_dcr(&["init"], &member_dir);
assert!(out.status.success(), "member init should succeed");
}
let workspace_toml = "[package]\nname = \"ws-root\"\nversion = \"0.1.0\"\n\n[build]\nlanguage = \"c\"\nstandard = \"c11\"\ncompiler = \"clang\"\nkind = \"bin\"\n\n[workspace]\nuserspace = { path = \"src/userspace\", deps = [] }\ncore = { path = \"src/core\", deps = [\"userspace\"] }\nkernel = { path = \"src/kernel\", deps = [\"core\"] }\n\n[dependencies]\n";
std::fs::write(root.join("dcr.toml"), workspace_toml).expect("failed to write root dcr.toml");
let envs = [("DCR_COMPILER", compiler)];
let out = run_dcr_env(&["build"], &root, &envs);
assert!(out.status.success(), "workspace build should succeed");
let out = run_dcr_env(&["build"], &root, &envs);
assert!(out.status.success(), "workspace build should succeed");
let out = run_dcr_env(&["build", "--release"], &root, &envs);
assert!(
out.status.success(),
"workspace build --release should succeed"
);
let out = run_dcr_env(&["clean", "--release", "--all"], &root, &envs);
assert!(
out.status.success(),
"workspace clean --all --release should succeed"
);
let target_dir = "target/x86_64-unknown-linux-gnu";
assert!(
!root.join(target_dir).join("release").exists(),
"root target/x86_64-unknown-linux-gnu/release should be removed"
);
assert!(
root.join(target_dir).join("debug").exists(),
"root target/x86_64-unknown-linux-gnu/debug should remain"
);
}
#[test]
fn dcr_add_dependencies() {
let dir = unique_sandbox_dir("add_dep");
let out = run_dcr(&["init"], &dir);
assert!(out.status.success(), "dcr init should succeed");
let out = run_dcr(&["add", "mylib", "path:./libs/mylib"], &dir);
assert!(out.status.success(), "dcr add path should succeed");
let toml = std::fs::read_to_string(dir.join("dcr.toml")).unwrap();
assert!(
toml.contains("mylib = { path = \"./libs/mylib\" }"),
"path dep not found in toml"
);
let out = run_dcr(&["add", "gh_lib", "github:user/repo"], &dir);
assert!(out.status.success(), "dcr add github should succeed");
let toml = std::fs::read_to_string(dir.join("dcr.toml")).unwrap();
assert!(
toml.contains("gh_lib = { git = \"https://github.com/user/repo\" }"),
"github dep not found in toml"
);
let out = run_dcr(&["add", "custom_git", "git:host.com/user/repo"], &dir);
assert!(out.status.success(), "dcr add custom git should succeed");
let toml = std::fs::read_to_string(dir.join("dcr.toml")).unwrap();
assert!(
toml.contains("custom_git = { git = \"https://host.com/user/repo\" }"),
"custom git dep not found in toml"
);
let out = run_dcr(&["add", "git_short", "git:user/repo"], &dir);
assert!(out.status.success(), "dcr add git short should succeed");
let toml = std::fs::read_to_string(dir.join("dcr.toml")).unwrap();
assert!(
toml.contains("git_short = { git = \"https://github.com/user/repo\" }"),
"git short dep not found in toml"
);
let out = run_dcr(
&["add", "branch_lib", "github:user/repo", "--branch", "dev"],
&dir,
);
assert!(out.status.success(), "dcr add with branch should succeed");
let toml = std::fs::read_to_string(dir.join("dcr.toml")).unwrap();
assert!(
toml.contains("branch_lib = { git = \"https://github.com/user/repo\", branch = \"dev\" }"),
"branch lib not found in toml"
);
let out = run_dcr(&["add", "fail_lib", "user/repo"], &dir);
assert!(!out.status.success(), "dcr add without prefix should fail");
}
#[test]
fn dcr_builds_lib_package() {
let Some(compiler) = available_compiler() else {
eprintln!("no compiler found; skipping lib package test");
return;
};
let dir = unique_sandbox_dir("lib_package");
let out = run_dcr(&["init"], &dir);
assert!(out.status.success(), "dcr init should succeed");
let toml = std::fs::read_to_string(dir.join("dcr.toml")).unwrap();
let updated_toml = toml
.replace("kind = \"bin\"", "kind = \"staticlib\"")
.replace("type = \"none\"", "type = \"lib\"");
std::fs::write(dir.join("dcr.toml"), updated_toml).expect("failed to write toml");
std::fs::write(dir.join("src").join("my_lib.h"), "void hello();")
.expect("failed to write header");
let envs = [("DCR_COMPILER", compiler)];
let out = run_dcr_env(&["build"], &dir, &envs);
if !out.status.success() {
eprintln!("stdout: {}", String::from_utf8_lossy(&out.stdout));
eprintln!("stderr: {}", String::from_utf8_lossy(&out.stderr));
}
assert!(out.status.success(), "dcr build should succeed");
let target_dir = dir.join("target");
assert!(
target_dir.join("include").join("my_lib.h").is_file(),
"include/my_lib.h missing"
);
assert!(target_dir.join("lib").exists(), "lib directory missing");
}
#[test]
fn registry_dependency_is_built_from_cache() {
let Some(compiler) = available_compiler() else {
eprintln!("no compiler found; skipping registry dependency build test");
return;
};
let root = unique_sandbox_dir("registry_dep");
let home = root.join("home");
let dcr_home = home.join(".dcr");
let dep = root.join("cache").join("mylib");
let app = root.join("app");
std::fs::create_dir_all(dcr_home.as_path()).expect("failed to create dcr home");
std::fs::create_dir_all(dep.join("src")).expect("failed to create dep src");
std::fs::create_dir_all(app.join("src")).expect("failed to create app src");
std::fs::write(
dcr_home.join("config.toml"),
"[registry.local]\nurl = \"file://local\"\npriority = 1\n",
)
.expect("failed to write registry config");
std::fs::write(
dcr_home.join("index.json"),
format!(
"{{\"packages\":[{{\"name\":\"mylib\",\"latest_version\":\"0.1.0\",\"path\":\"{}\"}}]}}",
dep.display()
),
)
.expect("failed to write registry index");
std::fs::write(
dep.join("dcr.toml"),
"[package]\nname = \"mylib\"\nversion = \"0.1.0\"\ntype = \"lib\"\n\n[build]\nlanguage = \"c\"\nstandard = \"c11\"\ncompiler = \"clang\"\nkind = \"staticlib\"\n\n[dependencies]\n",
)
.expect("failed to write dep dcr.toml");
std::fs::write(dep.join("src").join("mylib.h"), "int answer(void);\n")
.expect("failed to write header");
std::fs::write(
dep.join("src").join("mylib.c"),
"int answer(void) { return 42; }\n",
)
.expect("failed to write dep source");
std::fs::write(
app.join("dcr.toml"),
"[package]\nname = \"app\"\nversion = \"0.1.0\"\ntype = \"none\"\n\n[build]\nlanguage = \"c\"\nstandard = \"c11\"\ncompiler = \"clang\"\nkind = \"bin\"\n\n[dependencies]\nmylib = \"0.1.0\"\n",
)
.expect("failed to write app dcr.toml");
std::fs::write(
app.join("src").join("main.c"),
"#include \"mylib.h\"\nint main(void) { return answer() == 42 ? 0 : 1; }\n",
)
.expect("failed to write app source");
let index_path = dcr_home.join("index.json");
let envs = [
("DCR_COMPILER", compiler),
("HOME", home.to_str().unwrap()),
("DCR_INDEX_PATH", index_path.to_str().unwrap()),
];
let out = run_dcr_env(&["build"], &app, &envs);
if !out.status.success() {
eprintln!("stdout: {}", String::from_utf8_lossy(&out.stdout));
eprintln!("stderr: {}", String::from_utf8_lossy(&out.stderr));
}
assert!(
out.status.success(),
"registry dependency build should succeed"
);
assert!(
dep.join("target").join("include").join("mylib.h").is_file(),
"registry dependency headers were not packaged"
);
assert!(
dep.join("target").join("lib").exists(),
"registry dependency library directory missing"
);
}
fn parse_project_name(toml: &str) -> String {
toml.lines()
.find(|l| l.trim().starts_with("name ="))
.and_then(|l| l.split('=').nth(1))
.map(|s| s.trim().trim_matches('"').to_string())
.expect("could not parse project name from dcr.toml")
}
fn default_artifact_path(project_root: &Path, project_name: &str) -> PathBuf {
project_root
.join("target")
.join("x86_64-unknown-linux-gnu")
.join("debug")
.join(project_name)
}
#[test]
fn build_with_target_config() {
let Some(compiler) = available_compiler() else {
eprintln!("no compiler found; skipping target config test");
return;
};
let dir = unique_sandbox_dir("target_cfg");
let out = run_dcr(&["init"], &dir);
assert!(out.status.success(), "dcr init should succeed");
let toml_path = dir.join("dcr.toml");
let toml = std::fs::read_to_string(&toml_path).expect("failed to read dcr.toml");
let project_name = parse_project_name(&toml);
let updated = toml.replace("[build]", "[build]\ntarget = \"linux\"");
std::fs::write(&toml_path, updated).expect("failed to write dcr.toml");
let envs = [("DCR_COMPILER", compiler)];
let out = run_dcr_env(&["build"], &dir, &envs);
assert!(
out.status.success(),
"dcr build with target = \"linux\" should succeed"
);
let artifact = default_artifact_path(&dir, &project_name);
assert!(
artifact.is_file(),
"artifact should be at default path target/x86_64-unknown-linux-gnu/debug/{}",
project_name
);
}
#[test]
fn build_with_out_dir() {
let Some(compiler) = available_compiler() else {
eprintln!("no compiler found; skipping out_dir test");
return;
};
let dir = unique_sandbox_dir("out_dir");
let out = run_dcr(&["init"], &dir);
assert!(out.status.success(), "dcr init should succeed");
let toml_path = dir.join("dcr.toml");
let toml = std::fs::read_to_string(&toml_path).expect("failed to read dcr.toml");
let project_name = parse_project_name(&toml);
let updated = toml.replace("[build]", "[build]\nout_dir = \"./_BUILD\"");
std::fs::write(&toml_path, updated).expect("failed to write dcr.toml");
let envs = [("DCR_COMPILER", compiler)];
let out = run_dcr_env(&["build"], &dir, &envs);
if !out.status.success() {
eprintln!("stdout: {}", String::from_utf8_lossy(&out.stdout));
eprintln!("stderr: {}", String::from_utf8_lossy(&out.stderr));
}
assert!(
out.status.success(),
"dcr build with out_dir should succeed"
);
let artifact = dir.join("_BUILD").join(&project_name);
assert!(
artifact.is_file(),
"artifact should be at _BUILD/{} (custom out_dir)",
project_name
);
let default_path = default_artifact_path(&dir, &project_name);
assert!(
!default_path.exists(),
"artifact should NOT be at default path when out_dir is set"
);
}
#[test]
fn dcr_test_runs_without_sandbox_dependency() {
let Some(compiler) = available_compiler() else {
eprintln!("no compiler found; skipping dcr test integration");
return;
};
let dir = unique_sandbox_dir("dcr_test_independent");
let out = run_dcr(&["init"], &dir);
assert!(out.status.success(), "dcr init should succeed");
let envs = [("DCR_CC", compiler)];
let out_init = run_dcr_env(&["test", "--init"], &dir, &envs);
assert!(out_init.status.success(), "dcr test --init should succeed");
let out = run_dcr_env(&["test"], &dir, &envs);
assert!(out.status.success(), "dcr test should succeed");
let stdout = String::from_utf8_lossy(&out.stdout);
let stderr = String::from_utf8_lossy(&out.stderr);
assert!(stdout.contains("TOTAL: 1"), "TOTAL summary line missing");
assert!(
stdout.contains("PASS: 1"),
"PASS summary line missing\nstdout:\n{}\nstderr:\n{}",
stdout,
stderr
);
}