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use assert_cmd::prelude::*;
use std::fs;
use std::io::Write;
use std::path::PathBuf;
use std::process::Command;
use tempfile::tempdir;
fn write_file(path: &PathBuf, content: &str) {
if let Some(parent) = path.parent() {
let _ = fs::create_dir_all(parent);
}
let mut f = fs::File::create(path).unwrap();
f.write_all(content.as_bytes()).unwrap();
}
#[test]
fn connected_files_accepts_positional_file_argument() {
let dir = tempdir().unwrap();
let root = dir.path();
let src = root.join("src");
fs::create_dir_all(&src).unwrap();
write_file(&src.join("lib.rs"), "mod a; mod b;\n");
write_file(&src.join("a.rs"), "pub fn a() {}\n");
write_file(&src.join("b.rs"), "pub fn b() { super::a::a(); }\n");
// Run: rust-relations-explorer query connected-files <file> --path <root> --format json
let mut cmd = Command::cargo_bin("rust-relations-explorer").unwrap();
cmd.arg("query")
.arg("connected-files")
.arg(src.join("a.rs"))
.arg("--path")
.arg(root)
.arg("--format")
.arg("json");
cmd.assert().success();
}