1 files changed, 77 insertions, 0 deletions
diff --git a/tests/ui/process/process-spawn-with-unicode-params.rs b/tests/ui/process/process-spawn-with-unicode-params.rs
new file mode 100644
index 00000000000..16dba6292db
--- /dev/null
+++ b/tests/ui/process/process-spawn-with-unicode-params.rs
@@ -0,0 +1,77 @@
+// run-pass
+// no-prefer-dynamic
+
+// The test copies itself into a subdirectory with a non-ASCII name and then
+// runs it as a child process within the subdirectory.  The parent process
+// also adds an environment variable and an argument, both containing
+// non-ASCII characters.  The child process ensures all the strings are
+// intact.
+
+// ignore-emscripten no processes
+// ignore-sgx no processes
+// ignore-fuchsia Filesystem manipulation privileged
+
+use std::io::prelude::*;
+use std::io;
+use std::fs;
+use std::process::Command;
+use std::env;
+use std::path::Path;
+
+fn main() {
+    let my_args = env::args().collect::<Vec<_>>();
+    let my_cwd  = env::current_dir().unwrap();
+    let my_env  = env::vars().collect::<Vec<_>>();
+    let my_path = env::current_exe().unwrap();
+    let my_dir  = my_path.parent().unwrap();
+    let my_ext  = my_path.extension().and_then(|s| s.to_str()).unwrap_or("");
+
+    // some non-ASCII characters
+    let blah       = "\u{3c0}\u{42f}\u{97f3}\u{e6}\u{221e}";
+
+    let child_name = "child";
+    let child_dir  = format!("process-spawn-with-unicode-params-{}", blah);
+
+    // parameters sent to child / expected to be received from parent
+    let arg = blah;
+    let cwd = my_dir.join(&child_dir);
+    let env = ("RUST_TEST_PROC_SPAWN_UNICODE".to_string(), blah.to_string());
+
+    // am I the parent or the child?
+    if my_args.len() == 1 {             // parent
+
+        let child_filestem = Path::new(child_name);
+        let child_filename = child_filestem.with_extension(my_ext);
+        let child_path     = cwd.join(&child_filename);
+
+        // make a separate directory for the child
+        let _ = fs::create_dir(&cwd);
+        fs::copy(&my_path, &child_path).unwrap();
+
+        // run child
+        let p = Command::new(&child_path)
+                        .arg(arg)
+                        .current_dir(&cwd)
+                        .env(&env.0, &env.1)
+                        .spawn().unwrap().wait_with_output().unwrap();
+
+        // display the output
+        io::stdout().write_all(&p.stdout).unwrap();
+        io::stderr().write_all(&p.stderr).unwrap();
+
+        // make sure the child succeeded
+        assert!(p.status.success());
+
+    } else {                            // child
+
+        // check working directory (don't try to compare with `cwd` here!)
+        assert!(my_cwd.ends_with(&child_dir));
+
+        // check arguments
+        assert_eq!(&*my_args[1], arg);
+
+        // check environment variable
+        assert!(my_env.contains(&env));
+
+    };
+}