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runtest.rs
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// Copyright 2012-2014 The Rust Project Developers. See the COPYRIGHT
// file at the top-level directory of this distribution and at
// http://rust-lang.org/COPYRIGHT.
//
// Licensed under the Apache License, Version 2.0 <LICENSE-APACHE or
// http://www.apache.org/licenses/LICENSE-2.0> or the MIT license
// <LICENSE-MIT or http://opensource.org/licenses/MIT>, at your
// option. This file may not be copied, modified, or distributed
// except according to those terms.
use common::Config;
use common::{CompileFail, ParseFail, Pretty, RunFail, RunPass, RunPassValgrind};
use common::{Codegen, DebugInfoLldb, DebugInfoGdb, Rustdoc};
use errors;
use header::TestProps;
use header;
use procsrv;
use util::logv;
use std::env;
use std::fmt;
use std::fs::{self, File};
use std::io::BufReader;
use std::io::prelude::*;
use std::net::TcpStream;
use std::path::{Path, PathBuf, Component};
use std::process::{Command, Output, ExitStatus};
pub fn run(config: Config, testfile: &Path) {
match &*config.target {
"arm-linux-androideabi" | "aarch64-linux-android" => {
if !config.adb_device_status {
panic!("android device not available");
}
}
_=> { }
}
if config.verbose {
// We're going to be dumping a lot of info. Start on a new line.
print!("\n\n");
}
debug!("running {:?}", testfile.display());
let props = header::load_props(&testfile);
debug!("loaded props");
match config.mode {
CompileFail => run_cfail_test(&config, &props, &testfile),
ParseFail => run_cfail_test(&config, &props, &testfile),
RunFail => run_rfail_test(&config, &props, &testfile),
RunPass => run_rpass_test(&config, &props, &testfile),
RunPassValgrind => run_valgrind_test(&config, &props, &testfile),
Pretty => run_pretty_test(&config, &props, &testfile),
DebugInfoGdb => run_debuginfo_gdb_test(&config, &props, &testfile),
DebugInfoLldb => run_debuginfo_lldb_test(&config, &props, &testfile),
Codegen => run_codegen_test(&config, &props, &testfile),
Rustdoc => run_rustdoc_test(&config, &props, &testfile),
}
}
fn get_output(props: &TestProps, proc_res: &ProcRes) -> String {
if props.check_stdout {
format!("{}{}", proc_res.stdout, proc_res.stderr)
} else {
proc_res.stderr.clone()
}
}
fn run_cfail_test(config: &Config, props: &TestProps, testfile: &Path) {
let proc_res = compile_test(config, props, testfile);
if proc_res.status.success() {
fatal_proc_rec(&format!("{} test compiled successfully!", config.mode)[..],
&proc_res);
}
check_correct_failure_status(&proc_res);
if proc_res.status.success() {
fatal("process did not return an error status");
}
let output_to_check = get_output(props, &proc_res);
let expected_errors = errors::load_errors(testfile);
if !expected_errors.is_empty() {
if !props.error_patterns.is_empty() {
fatal("both error pattern and expected errors specified");
}
check_expected_errors(expected_errors, testfile, &proc_res);
} else {
check_error_patterns(props, testfile, &output_to_check, &proc_res);
}
check_no_compiler_crash(&proc_res);
check_forbid_output(props, &output_to_check, &proc_res);
}
fn run_rfail_test(config: &Config, props: &TestProps, testfile: &Path) {
let proc_res = compile_test(config, props, testfile);
if !proc_res.status.success() {
fatal_proc_rec("compilation failed!", &proc_res);
}
let proc_res = exec_compiled_test(config, props, testfile);
// The value our Makefile configures valgrind to return on failure
const VALGRIND_ERR: i32 = 100;
if proc_res.status.code() == Some(VALGRIND_ERR) {
fatal_proc_rec("run-fail test isn't valgrind-clean!", &proc_res);
}
let output_to_check = get_output(props, &proc_res);
check_correct_failure_status(&proc_res);
check_error_patterns(props, testfile, &output_to_check, &proc_res);
}
fn check_correct_failure_status(proc_res: &ProcRes) {
// The value the rust runtime returns on failure
const RUST_ERR: i32 = 101;
if proc_res.status.code() != Some(RUST_ERR) {
fatal_proc_rec(
&format!("failure produced the wrong error: {}",
proc_res.status),
proc_res);
}
}
fn run_rpass_test(config: &Config, props: &TestProps, testfile: &Path) {
let proc_res = compile_test(config, props, testfile);
if !proc_res.status.success() {
fatal_proc_rec("compilation failed!", &proc_res);
}
let proc_res = exec_compiled_test(config, props, testfile);
if !proc_res.status.success() {
fatal_proc_rec("test run failed!", &proc_res);
}
}
fn run_valgrind_test(config: &Config, props: &TestProps, testfile: &Path) {
if config.valgrind_path.is_none() {
assert!(!config.force_valgrind);
return run_rpass_test(config, props, testfile);
}
let mut proc_res = compile_test(config, props, testfile);
if !proc_res.status.success() {
fatal_proc_rec("compilation failed!", &proc_res);
}
let mut new_config = config.clone();
new_config.runtool = new_config.valgrind_path.clone();
proc_res = exec_compiled_test(&new_config, props, testfile);
if !proc_res.status.success() {
fatal_proc_rec("test run failed!", &proc_res);
}
}
fn run_pretty_test(config: &Config, props: &TestProps, testfile: &Path) {
if props.pp_exact.is_some() {
logv(config, "testing for exact pretty-printing".to_owned());
} else {
logv(config, "testing for converging pretty-printing".to_owned());
}
let rounds =
match props.pp_exact { Some(_) => 1, None => 2 };
let mut src = String::new();
File::open(testfile).unwrap().read_to_string(&mut src).unwrap();
let mut srcs = vec!(src);
let mut round = 0;
while round < rounds {
logv(config, format!("pretty-printing round {}", round));
let proc_res = print_source(config,
props,
testfile,
srcs[round].to_owned(),
&props.pretty_mode);
if !proc_res.status.success() {
fatal_proc_rec(&format!("pretty-printing failed in round {}", round),
&proc_res);
}
let ProcRes{ stdout, .. } = proc_res;
srcs.push(stdout);
round += 1;
}
let mut expected = match props.pp_exact {
Some(ref file) => {
let filepath = testfile.parent().unwrap().join(file);
let mut s = String::new();
File::open(&filepath).unwrap().read_to_string(&mut s).unwrap();
s
}
None => { srcs[srcs.len() - 2].clone() }
};
let mut actual = srcs[srcs.len() - 1].clone();
if props.pp_exact.is_some() {
// Now we have to care about line endings
let cr = "\r".to_owned();
actual = actual.replace(&cr, "").to_owned();
expected = expected.replace(&cr, "").to_owned();
}
compare_source(&expected, &actual);
// If we're only making sure that the output matches then just stop here
if props.pretty_compare_only { return; }
// Finally, let's make sure it actually appears to remain valid code
let proc_res = typecheck_source(config, props, testfile, actual);
if !proc_res.status.success() {
fatal_proc_rec("pretty-printed source does not typecheck", &proc_res);
}
if !props.pretty_expanded { return }
// additionally, run `--pretty expanded` and try to build it.
let proc_res = print_source(config, props, testfile, srcs[round].clone(), "expanded");
if !proc_res.status.success() {
fatal_proc_rec("pretty-printing (expanded) failed", &proc_res);
}
let ProcRes{ stdout: expanded_src, .. } = proc_res;
let proc_res = typecheck_source(config, props, testfile, expanded_src);
if !proc_res.status.success() {
fatal_proc_rec("pretty-printed source (expanded) does not typecheck",
&proc_res);
}
return;
fn print_source(config: &Config,
props: &TestProps,
testfile: &Path,
src: String,
pretty_type: &str) -> ProcRes {
let aux_dir = aux_output_dir_name(config, testfile);
compose_and_run(config,
testfile,
make_pp_args(config,
props,
testfile,
pretty_type.to_owned()),
props.exec_env.clone(),
&config.compile_lib_path,
Some(aux_dir.to_str().unwrap()),
Some(src))
}
fn make_pp_args(config: &Config,
props: &TestProps,
testfile: &Path,
pretty_type: String) -> ProcArgs {
let aux_dir = aux_output_dir_name(config, testfile);
// FIXME (#9639): This needs to handle non-utf8 paths
let mut args = vec!("-".to_owned(),
"-Zunstable-options".to_owned(),
"--unpretty".to_owned(),
pretty_type,
format!("--target={}", config.target),
"-L".to_owned(),
aux_dir.to_str().unwrap().to_owned());
args.extend(split_maybe_args(&config.target_rustcflags));
args.extend(split_maybe_args(&props.compile_flags));
return ProcArgs {
prog: config.rustc_path.to_str().unwrap().to_owned(),
args: args,
};
}
fn compare_source(expected: &str, actual: &str) {
if expected != actual {
error("pretty-printed source does not match expected source");
println!("\n\
expected:\n\
------------------------------------------\n\
{}\n\
------------------------------------------\n\
actual:\n\
------------------------------------------\n\
{}\n\
------------------------------------------\n\
\n",
expected, actual);
panic!();
}
}
fn typecheck_source(config: &Config, props: &TestProps,
testfile: &Path, src: String) -> ProcRes {
let args = make_typecheck_args(config, props, testfile);
compose_and_run_compiler(config, props, testfile, args, Some(src))
}
fn make_typecheck_args(config: &Config, props: &TestProps, testfile: &Path) -> ProcArgs {
let aux_dir = aux_output_dir_name(config, testfile);
let target = if props.force_host {
&*config.host
} else {
&*config.target
};
// FIXME (#9639): This needs to handle non-utf8 paths
let mut args = vec!("-".to_owned(),
"-Zno-trans".to_owned(),
format!("--target={}", target),
"-L".to_owned(),
config.build_base.to_str().unwrap().to_owned(),
"-L".to_owned(),
aux_dir.to_str().unwrap().to_owned());
args.extend(split_maybe_args(&config.target_rustcflags));
args.extend(split_maybe_args(&props.compile_flags));
// FIXME (#9639): This needs to handle non-utf8 paths
return ProcArgs {
prog: config.rustc_path.to_str().unwrap().to_owned(),
args: args,
};
}
}
fn run_debuginfo_gdb_test(config: &Config, props: &TestProps, testfile: &Path) {
let mut config = Config {
target_rustcflags: cleanup_debug_info_options(&config.target_rustcflags),
host_rustcflags: cleanup_debug_info_options(&config.host_rustcflags),
.. config.clone()
};
let config = &mut config;
let DebuggerCommands {
commands,
check_lines,
breakpoint_lines
} = parse_debugger_commands(testfile, "gdb");
let mut cmds = commands.join("\n");
// compile test file (it should have 'compile-flags:-g' in the header)
let compiler_run_result = compile_test(config, props, testfile);
if !compiler_run_result.status.success() {
fatal_proc_rec("compilation failed!", &compiler_run_result);
}
let exe_file = make_exe_name(config, testfile);
let debugger_run_result;
match &*config.target {
"arm-linux-androideabi" | "aarch64-linux-android" => {
cmds = cmds.replace("run", "continue");
// write debugger script
let mut script_str = String::with_capacity(2048);
script_str.push_str(&format!("set charset {}\n", charset()));
script_str.push_str(&format!("file {}\n", exe_file.to_str().unwrap()));
script_str.push_str("target remote :5039\n");
script_str.push_str(&format!("set solib-search-path \
./{}/stage2/lib/rustlib/{}/lib/\n",
config.host, config.target));
for line in &breakpoint_lines {
script_str.push_str(&format!("break {:?}:{}\n",
testfile.file_name().unwrap()
.to_string_lossy(),
*line)[..]);
}
script_str.push_str(&cmds);
script_str.push_str("\nquit\n");
debug!("script_str = {}", script_str);
dump_output_file(config,
testfile,
&script_str,
"debugger.script");
procsrv::run("",
&config.adb_path,
None,
&[
"push".to_owned(),
exe_file.to_str().unwrap().to_owned(),
config.adb_test_dir.clone()
],
vec!(("".to_owned(), "".to_owned())),
Some("".to_owned()))
.expect(&format!("failed to exec `{:?}`", config.adb_path));
procsrv::run("",
&config.adb_path,
None,
&[
"forward".to_owned(),
"tcp:5039".to_owned(),
"tcp:5039".to_owned()
],
vec!(("".to_owned(), "".to_owned())),
Some("".to_owned()))
.expect(&format!("failed to exec `{:?}`", config.adb_path));
let adb_arg = format!("export LD_LIBRARY_PATH={}; \
gdbserver{} :5039 {}/{}",
config.adb_test_dir.clone(),
if config.target.contains("aarch64")
{"64"} else {""},
config.adb_test_dir.clone(),
exe_file.file_name().unwrap().to_str()
.unwrap());
let mut process = procsrv::run_background("",
&config.adb_path
,
None,
&[
"shell".to_owned(),
adb_arg.clone()
],
vec!(("".to_owned(),
"".to_owned())),
Some("".to_owned()))
.expect(&format!("failed to exec `{:?}`", config.adb_path));
loop {
//waiting 1 second for gdbserver start
::std::thread::sleep(::std::time::Duration::new(1,0));
if TcpStream::connect("127.0.0.1:5039").is_ok() {
break
}
}
let tool_path = match config.android_cross_path.to_str() {
Some(x) => x.to_owned(),
None => fatal("cannot find android cross path")
};
let debugger_script = make_out_name(config, testfile, "debugger.script");
// FIXME (#9639): This needs to handle non-utf8 paths
let debugger_opts =
vec!("-quiet".to_owned(),
"-batch".to_owned(),
"-nx".to_owned(),
format!("-command={}", debugger_script.to_str().unwrap()));
let mut gdb_path = tool_path;
gdb_path.push_str(&format!("/bin/{}-gdb", config.target));
let procsrv::Result {
out,
err,
status
} = procsrv::run("",
&gdb_path,
None,
&debugger_opts,
vec!(("".to_owned(), "".to_owned())),
None)
.expect(&format!("failed to exec `{:?}`", gdb_path));
let cmdline = {
let cmdline = make_cmdline("",
&format!("{}-gdb", config.target),
&debugger_opts);
logv(config, format!("executing {}", cmdline));
cmdline
};
debugger_run_result = ProcRes {
status: Status::Normal(status),
stdout: out,
stderr: err,
cmdline: cmdline
};
if process.kill().is_err() {
println!("Adb process is already finished.");
}
}
_=> {
let rust_src_root = find_rust_src_root(config)
.expect("Could not find Rust source root");
let rust_pp_module_rel_path = Path::new("./src/etc");
let rust_pp_module_abs_path = rust_src_root.join(rust_pp_module_rel_path)
.to_str()
.unwrap()
.to_owned();
// write debugger script
let mut script_str = String::with_capacity(2048);
script_str.push_str(&format!("set charset {}\n", charset()));
script_str.push_str("show version\n");
match config.gdb_version {
Some(ref version) => {
println!("NOTE: compiletest thinks it is using GDB version {}",
version);
if header::gdb_version_to_int(version) >
header::gdb_version_to_int("7.4") {
// Add the directory containing the pretty printers to
// GDB's script auto loading safe path
script_str.push_str(
&format!("add-auto-load-safe-path {}\n",
rust_pp_module_abs_path.replace(r"\", r"\\"))
);
}
}
_ => {
println!("NOTE: compiletest does not know which version of \
GDB it is using");
}
}
// The following line actually doesn't have to do anything with
// pretty printing, it just tells GDB to print values on one line:
script_str.push_str("set print pretty off\n");
// Add the pretty printer directory to GDB's source-file search path
script_str.push_str(&format!("directory {}\n",
rust_pp_module_abs_path));
// Load the target executable
script_str.push_str(&format!("file {}\n",
exe_file.to_str().unwrap()
.replace(r"\", r"\\")));
// Add line breakpoints
for line in &breakpoint_lines {
script_str.push_str(&format!("break '{}':{}\n",
testfile.file_name().unwrap()
.to_string_lossy(),
*line));
}
script_str.push_str(&cmds);
script_str.push_str("\nquit\n");
debug!("script_str = {}", script_str);
dump_output_file(config,
testfile,
&script_str,
"debugger.script");
// run debugger script with gdb
fn debugger() -> &'static str {
if cfg!(windows) {"gdb.exe"} else {"gdb"}
}
let debugger_script = make_out_name(config, testfile, "debugger.script");
// FIXME (#9639): This needs to handle non-utf8 paths
let debugger_opts =
vec!("-quiet".to_owned(),
"-batch".to_owned(),
"-nx".to_owned(),
format!("-command={}", debugger_script.to_str().unwrap()));
let proc_args = ProcArgs {
prog: debugger().to_owned(),
args: debugger_opts,
};
let environment = vec![("PYTHONPATH".to_owned(), rust_pp_module_abs_path)];
debugger_run_result = compose_and_run(config,
testfile,
proc_args,
environment,
&config.run_lib_path,
None,
None);
}
}
if !debugger_run_result.status.success() {
fatal("gdb failed to execute");
}
check_debugger_output(&debugger_run_result, &check_lines);
}
fn find_rust_src_root(config: &Config) -> Option<PathBuf> {
let mut path = config.src_base.clone();
let path_postfix = Path::new("src/etc/lldb_batchmode.py");
while path.pop() {
if path.join(&path_postfix).is_file() {
return Some(path);
}
}
return None;
}
fn run_debuginfo_lldb_test(config: &Config, props: &TestProps, testfile: &Path) {
if config.lldb_python_dir.is_none() {
fatal("Can't run LLDB test because LLDB's python path is not set.");
}
let mut config = Config {
target_rustcflags: cleanup_debug_info_options(&config.target_rustcflags),
host_rustcflags: cleanup_debug_info_options(&config.host_rustcflags),
.. config.clone()
};
let config = &mut config;
// compile test file (it should have 'compile-flags:-g' in the header)
let compile_result = compile_test(config, props, testfile);
if !compile_result.status.success() {
fatal_proc_rec("compilation failed!", &compile_result);
}
let exe_file = make_exe_name(config, testfile);
match config.lldb_version {
Some(ref version) => {
println!("NOTE: compiletest thinks it is using LLDB version {}",
version);
}
_ => {
println!("NOTE: compiletest does not know which version of \
LLDB it is using");
}
}
// Parse debugger commands etc from test files
let DebuggerCommands {
commands,
check_lines,
breakpoint_lines,
..
} = parse_debugger_commands(testfile, "lldb");
// Write debugger script:
// We don't want to hang when calling `quit` while the process is still running
let mut script_str = String::from("settings set auto-confirm true\n");
// Make LLDB emit its version, so we have it documented in the test output
script_str.push_str("version\n");
// Switch LLDB into "Rust mode"
let rust_src_root = find_rust_src_root(config)
.expect("Could not find Rust source root");
let rust_pp_module_rel_path = Path::new("./src/etc/lldb_rust_formatters.py");
let rust_pp_module_abs_path = rust_src_root.join(rust_pp_module_rel_path)
.to_str()
.unwrap()
.to_owned();
script_str.push_str(&format!("command script import {}\n",
&rust_pp_module_abs_path[..])[..]);
script_str.push_str("type summary add --no-value ");
script_str.push_str("--python-function lldb_rust_formatters.print_val ");
script_str.push_str("-x \".*\" --category Rust\n");
script_str.push_str("type category enable Rust\n");
// Set breakpoints on every line that contains the string "#break"
for line in &breakpoint_lines {
script_str.push_str(&format!("breakpoint set --line {}\n", line));
}
// Append the other commands
for line in &commands {
script_str.push_str(line);
script_str.push_str("\n");
}
// Finally, quit the debugger
script_str.push_str("\nquit\n");
// Write the script into a file
debug!("script_str = {}", script_str);
dump_output_file(config,
testfile,
&script_str,
"debugger.script");
let debugger_script = make_out_name(config, testfile, "debugger.script");
// Let LLDB execute the script via lldb_batchmode.py
let debugger_run_result = run_lldb(config,
&exe_file,
&debugger_script,
&rust_src_root);
if !debugger_run_result.status.success() {
fatal_proc_rec("Error while running LLDB", &debugger_run_result);
}
check_debugger_output(&debugger_run_result, &check_lines);
fn run_lldb(config: &Config,
test_executable: &Path,
debugger_script: &Path,
rust_src_root: &Path)
-> ProcRes {
// Prepare the lldb_batchmode which executes the debugger script
let lldb_script_path = rust_src_root.join("src/etc/lldb_batchmode.py");
cmd2procres(config,
test_executable,
Command::new(&config.python)
.arg(&lldb_script_path)
.arg(test_executable)
.arg(debugger_script)
.env("PYTHONPATH",
config.lldb_python_dir.as_ref().unwrap()))
}
}
fn cmd2procres(config: &Config, test_executable: &Path, cmd: &mut Command)
-> ProcRes {
let (status, out, err) = match cmd.output() {
Ok(Output { status, stdout, stderr }) => {
(status,
String::from_utf8(stdout).unwrap(),
String::from_utf8(stderr).unwrap())
},
Err(e) => {
fatal(&format!("Failed to setup Python process for \
LLDB script: {}", e))
}
};
dump_output(config, test_executable, &out, &err);
ProcRes {
status: Status::Normal(status),
stdout: out,
stderr: err,
cmdline: format!("{:?}", cmd)
}
}
struct DebuggerCommands {
commands: Vec<String>,
check_lines: Vec<String>,
breakpoint_lines: Vec<usize>,
}
fn parse_debugger_commands(file_path: &Path, debugger_prefix: &str)
-> DebuggerCommands {
let command_directive = format!("{}-command", debugger_prefix);
let check_directive = format!("{}-check", debugger_prefix);
let mut breakpoint_lines = vec!();
let mut commands = vec!();
let mut check_lines = vec!();
let mut counter = 1;
let reader = BufReader::new(File::open(file_path).unwrap());
for line in reader.lines() {
match line {
Ok(line) => {
if line.contains("#break") {
breakpoint_lines.push(counter);
}
header::parse_name_value_directive(
&line,
&command_directive).map(|cmd| {
commands.push(cmd)
});
header::parse_name_value_directive(
&line,
&check_directive).map(|cmd| {
check_lines.push(cmd)
});
}
Err(e) => {
fatal(&format!("Error while parsing debugger commands: {}", e))
}
}
counter += 1;
}
DebuggerCommands {
commands: commands,
check_lines: check_lines,
breakpoint_lines: breakpoint_lines,
}
}
fn cleanup_debug_info_options(options: &Option<String>) -> Option<String> {
if options.is_none() {
return None;
}
// Remove options that are either unwanted (-O) or may lead to duplicates due to RUSTFLAGS.
let options_to_remove = [
"-O".to_owned(),
"-g".to_owned(),
"--debuginfo".to_owned()
];
let new_options =
split_maybe_args(options).into_iter()
.filter(|x| !options_to_remove.contains(x))
.collect::<Vec<String>>()
.join(" ");
Some(new_options)
}
fn check_debugger_output(debugger_run_result: &ProcRes, check_lines: &[String]) {
let num_check_lines = check_lines.len();
if num_check_lines > 0 {
// Allow check lines to leave parts unspecified (e.g., uninitialized
// bits in the wrong case of an enum) with the notation "[...]".
let check_fragments: Vec<Vec<String>> =
check_lines.iter().map(|s| {
s
.trim()
.split("[...]")
.map(str::to_owned)
.collect()
}).collect();
// check if each line in props.check_lines appears in the
// output (in order)
let mut i = 0;
for line in debugger_run_result.stdout.lines() {
let mut rest = line.trim();
let mut first = true;
let mut failed = false;
for frag in &check_fragments[i] {
let found = if first {
if rest.starts_with(frag) {
Some(0)
} else {
None
}
} else {
rest.find(frag)
};
match found {
None => {
failed = true;
break;
}
Some(i) => {
rest = &rest[(i + frag.len())..];
}
}
first = false;
}
if !failed && rest.is_empty() {
i += 1;
}
if i == num_check_lines {
// all lines checked
break;
}
}
if i != num_check_lines {
fatal_proc_rec(&format!("line not found in debugger output: {}",
check_lines.get(i).unwrap()),
debugger_run_result);
}
}
}
fn check_error_patterns(props: &TestProps,
testfile: &Path,
output_to_check: &str,
proc_res: &ProcRes) {
if props.error_patterns.is_empty() {
fatal(&format!("no error pattern specified in {:?}", testfile.display()));
}
let mut next_err_idx = 0;
let mut next_err_pat = &props.error_patterns[next_err_idx];
let mut done = false;
for line in output_to_check.lines() {
if line.contains(next_err_pat) {
debug!("found error pattern {}", next_err_pat);
next_err_idx += 1;
if next_err_idx == props.error_patterns.len() {
debug!("found all error patterns");
done = true;
break;
}
next_err_pat = &props.error_patterns[next_err_idx];
}
}
if done { return; }
let missing_patterns = &props.error_patterns[next_err_idx..];
if missing_patterns.len() == 1 {
fatal_proc_rec(&format!("error pattern '{}' not found!", missing_patterns[0]),
proc_res);
} else {
for pattern in missing_patterns {
error(&format!("error pattern '{}' not found!", *pattern));
}
fatal_proc_rec("multiple error patterns not found", proc_res);
}
}
fn check_no_compiler_crash(proc_res: &ProcRes) {
for line in proc_res.stderr.lines() {
if line.starts_with("error: internal compiler error:") {
fatal_proc_rec("compiler encountered internal error",
proc_res);
}
}
}
fn check_forbid_output(props: &TestProps,
output_to_check: &str,
proc_res: &ProcRes) {
for pat in &props.forbid_output {
if output_to_check.contains(pat) {
fatal_proc_rec("forbidden pattern found in compiler output", proc_res);
}
}
}
fn check_expected_errors(expected_errors: Vec<errors::ExpectedError>,
testfile: &Path,
proc_res: &ProcRes) {
// true if we found the error in question
let mut found_flags = vec![false; expected_errors.len()];
if proc_res.status.success() {
fatal("process did not return an error status");
}
let prefixes = expected_errors.iter().map(|ee| {
format!("{}:{}:", testfile.display(), ee.line)
}).collect::<Vec<String>>();
fn prefix_matches(line: &str, prefix: &str) -> bool {
use std::ascii::AsciiExt;
// On windows just translate all '\' path separators to '/'
let line = line.replace(r"\", "/");
if cfg!(windows) {
line.to_ascii_lowercase().starts_with(&prefix.to_ascii_lowercase())
} else {
line.starts_with(prefix)
}
}
// A multi-line error will have followup lines which start with a space
// or open paren.
fn continuation( line: &str) -> bool {
line.starts_with(" ") || line.starts_with("(")
}
// Scan and extract our error/warning messages,
// which look like:
// filename:line1:col1: line2:col2: *error:* msg
// filename:line1:col1: line2:col2: *warning:* msg
// where line1:col1: is the starting point, line2:col2:
// is the ending point, and * represents ANSI color codes.
//
// This pattern is ambiguous on windows, because filename may contain
// a colon, so any path prefix must be detected and removed first.
for line in proc_res.stderr.lines() {
let mut was_expected = false;
let mut prev = 0;
for (i, ee) in expected_errors.iter().enumerate() {
if !found_flags[i] {
debug!("prefix={} ee.kind={} ee.msg={} line={}",
prefixes[i],
ee.kind,
ee.msg,
line);
// Suggestions have no line number in their output, so take on the line number of
// the previous expected error
if ee.kind == "suggestion" {
assert!(expected_errors[prev].kind == "help",
"SUGGESTIONs must be preceded by a HELP");
if line.contains(&ee.msg) {
found_flags[i] = true;
was_expected = true;
break;
}
}
if (prefix_matches(line, &prefixes[i]) || continuation(line)) &&
line.contains(&ee.kind) &&
line.contains(&ee.msg) {
found_flags[i] = true;
was_expected = true;
break;
}
}
prev = i;
}
// ignore this msg which gets printed at the end
if line.contains("aborting due to") {
was_expected = true;
}
if !was_expected && is_compiler_error_or_warning(line) {
fatal_proc_rec(&format!("unexpected compiler error or warning: '{}'",
line),
proc_res);
}
}
for (i, &flag) in found_flags.iter().enumerate() {