src/test/run-make/cannot-read-embedded-idents/create_and_compile.rs

   1 // Copyright 2014 The Rust Project Developers. See the COPYRIGHT
   2 // file at the top-level directory of this distribution and at
   3 // http://rust-lang.org/COPYRIGHT.
   4 //
   5 // Licensed under the Apache License, Version 2.0 <LICENSE-APACHE or
   6 // http://www.apache.org/licenses/LICENSE-2.0> or the MIT license
   7 // <LICENSE-MIT or http://opensource.org/licenses/MIT>, at your
   8 // option. This file may not be copied, modified, or distributed
   9 // except according to those terms.
  10
  11 #![feature(old_io, old_path)]
  12
  13 use std::env;
  14 use std::fs::File;
  15 use std::process::Command;
  16 use std::io::Write;
  17 use std::path::Path;
  18
  19 // creates broken.rs, which has the Ident \x00name_0,ctxt_0\x00
  20 // embedded within it, and then attempts to compile broken.rs with the
  21 // provided `rustc`
  22
  23 fn main() {
  24     let args: Vec<String> = env::args().collect();
  25     let rustc = &args[1];
  26     let tmpdir = Path::new(&args[2]);
  27
  28     let main_file = tmpdir.join("broken.rs");
  29     let _ = File::create(&main_file).unwrap()
  30         .write_all(b"pub fn main() {
  31                    let \x00name_0,ctxt_0\x00 = 3;
  32                    println!(\"{}\", \x00name_0,ctxt_0\x00);
  33         }").unwrap();
  34
  35     // rustc is passed to us with --out-dir and -L etc., so we
  36     // can't exec it directly
  37     let result = Command::new("sh")
  38         .arg("-c")
  39         .arg(&format!("{} {}", rustc, main_file.display()))
  40         .output().unwrap();
  41     let err = String::from_utf8_lossy(&result.stderr);
  42
  43     // positive test so that this test will be updated when the
  44     // compiler changes.
  45     assert!(err.contains("unknown start of token"))
  46 }