gstreamer-rs/gstreamer-check-sys/tests/abi.rs
2018-11-05 11:16:27 +02:00

242 lines
7.6 KiB
Rust

// This file was generated by gir (https://github.com/gtk-rs/gir @ b5ea065)
// from gir-files (https://github.com/gtk-rs/gir-files @ ???)
// DO NOT EDIT
extern crate gstreamer_check_sys;
extern crate shell_words;
extern crate tempdir;
use std::env;
use std::error::Error;
use std::path::Path;
use std::mem::{align_of, size_of};
use std::process::Command;
use std::str;
use gstreamer_check_sys::*;
static PACKAGES: &[&str] = &["gstreamer-check-1.0"];
#[derive(Clone, Debug)]
struct Compiler {
pub args: Vec<String>,
}
impl Compiler {
pub fn new() -> Result<Compiler, Box<Error>> {
let mut args = get_var("CC", "cc")?;
args.push("-Wno-deprecated-declarations".to_owned());
// For %z support in printf when using MinGW.
args.push("-D__USE_MINGW_ANSI_STDIO".to_owned());
args.extend(get_var("CFLAGS", "")?);
args.extend(get_var("CPPFLAGS", "")?);
args.extend(pkg_config_cflags(PACKAGES)?);
Ok(Compiler { args })
}
pub fn define<'a, V: Into<Option<&'a str>>>(&mut self, var: &str, val: V) {
let arg = match val.into() {
None => format!("-D{}", var),
Some(val) => format!("-D{}={}", var, val),
};
self.args.push(arg);
}
pub fn compile(&self, src: &Path, out: &Path) -> Result<(), Box<Error>> {
let mut cmd = self.to_command();
cmd.arg(src);
cmd.arg("-o");
cmd.arg(out);
let status = cmd.spawn()?.wait()?;
if !status.success() {
return Err(format!("compilation command {:?} failed, {}",
&cmd, status).into());
}
Ok(())
}
fn to_command(&self) -> Command {
let mut cmd = Command::new(&self.args[0]);
cmd.args(&self.args[1..]);
cmd
}
}
fn get_var(name: &str, default: &str) -> Result<Vec<String>, Box<Error>> {
match env::var(name) {
Ok(value) => Ok(shell_words::split(&value)?),
Err(env::VarError::NotPresent) => Ok(shell_words::split(default)?),
Err(err) => Err(format!("{} {}", name, err).into()),
}
}
fn pkg_config_cflags(packages: &[&str]) -> Result<Vec<String>, Box<Error>> {
if packages.is_empty() {
return Ok(Vec::new());
}
let mut cmd = Command::new("pkg-config");
cmd.arg("--cflags");
cmd.args(packages);
let out = cmd.output()?;
if !out.status.success() {
return Err(format!("command {:?} returned {}",
&cmd, out.status).into());
}
let stdout = str::from_utf8(&out.stdout)?;
Ok(shell_words::split(stdout.trim())?)
}
#[derive(Copy, Clone, Debug, Eq, PartialEq)]
struct Layout {
size: usize,
alignment: usize,
}
#[derive(Copy, Clone, Debug, Default, Eq, PartialEq)]
struct Results {
/// Number of successfully completed tests.
passed: usize,
/// Total number of failed tests (including those that failed to compile).
failed: usize,
/// Number of tests that failed to compile.
failed_to_compile: usize,
}
impl Results {
fn record_passed(&mut self) {
self.passed += 1;
}
fn record_failed(&mut self) {
self.failed += 1;
}
fn record_failed_to_compile(&mut self) {
self.failed += 1;
self.failed_to_compile += 1;
}
fn summary(&self) -> String {
format!(
"{} passed; {} failed (compilation errors: {})",
self.passed,
self.failed,
self.failed_to_compile)
}
fn expect_total_success(&self) {
if self.failed == 0 {
println!("OK: {}", self.summary());
} else {
panic!("FAILED: {}", self.summary());
};
}
}
#[test]
fn cross_validate_constants_with_c() {
let tmpdir = tempdir::TempDir::new("abi").expect("temporary directory");
let cc = Compiler::new().expect("configured compiler");
assert_eq!("1",
get_c_value(tmpdir.path(), &cc, "1").expect("C constant"),
"failed to obtain correct constant value for 1");
let mut results : Results = Default::default();
for (i, &(name, rust_value)) in RUST_CONSTANTS.iter().enumerate() {
match get_c_value(tmpdir.path(), &cc, name) {
Err(e) => {
results.record_failed_to_compile();
eprintln!("{}", e);
},
Ok(ref c_value) => {
if rust_value == c_value {
results.record_passed();
} else {
results.record_failed();
eprintln!("Constant value mismatch for {}\nRust: {:?}\nC: {:?}",
name, rust_value, c_value);
}
}
};
if (i + 1) % 25 == 0 {
println!("constants ... {}", results.summary());
}
}
results.expect_total_success();
}
#[test]
fn cross_validate_layout_with_c() {
let tmpdir = tempdir::TempDir::new("abi").expect("temporary directory");
let cc = Compiler::new().expect("configured compiler");
assert_eq!(Layout {size: 1, alignment: 1},
get_c_layout(tmpdir.path(), &cc, "char").expect("C layout"),
"failed to obtain correct layout for char type");
let mut results : Results = Default::default();
for (i, &(name, rust_layout)) in RUST_LAYOUTS.iter().enumerate() {
match get_c_layout(tmpdir.path(), &cc, name) {
Err(e) => {
results.record_failed_to_compile();
eprintln!("{}", e);
},
Ok(c_layout) => {
if rust_layout == c_layout {
results.record_passed();
} else {
results.record_failed();
eprintln!("Layout mismatch for {}\nRust: {:?}\nC: {:?}",
name, rust_layout, &c_layout);
}
}
};
if (i + 1) % 25 == 0 {
println!("layout ... {}", results.summary());
}
}
results.expect_total_success();
}
fn get_c_layout(dir: &Path, cc: &Compiler, name: &str) -> Result<Layout, Box<Error>> {
let exe = dir.join("layout");
let mut cc = cc.clone();
cc.define("ABI_TYPE_NAME", name);
cc.compile(Path::new("tests/layout.c"), &exe)?;
let mut abi_cmd = Command::new(exe);
let output = abi_cmd.output()?;
if !output.status.success() {
return Err(format!("command {:?} failed, {:?}",
&abi_cmd, &output).into());
}
let stdout = str::from_utf8(&output.stdout)?;
let mut words = stdout.trim().split_whitespace();
let size = words.next().unwrap().parse().unwrap();
let alignment = words.next().unwrap().parse().unwrap();
Ok(Layout {size, alignment})
}
fn get_c_value(dir: &Path, cc: &Compiler, name: &str) -> Result<String, Box<Error>> {
let exe = dir.join("constant");
let mut cc = cc.clone();
cc.define("ABI_CONSTANT_NAME", name);
cc.compile(Path::new("tests/constant.c"), &exe)?;
let mut abi_cmd = Command::new(exe);
let output = abi_cmd.output()?;
if !output.status.success() {
return Err(format!("command {:?} failed, {:?}",
&abi_cmd, &output).into());
}
Ok(str::from_utf8(&output.stdout)?.trim().to_owned())
}
const RUST_LAYOUTS: &[(&str, Layout)] = &[
("GstHarness", Layout {size: size_of::<GstHarness>(), alignment: align_of::<GstHarness>()}),
("GstTestClock", Layout {size: size_of::<GstTestClock>(), alignment: align_of::<GstTestClock>()}),
("GstTestClockClass", Layout {size: size_of::<GstTestClockClass>(), alignment: align_of::<GstTestClockClass>()}),
];
const RUST_CONSTANTS: &[(&str, &str)] = &[
];