gstreamer-rs/gstreamer-app-sys/tests/abi.rs

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// This file was generated by gir (https://github.com/gtk-rs/gir @ d1e88f9)
2020-04-30 18:19:06 +00:00
// from gir-files (https://github.com/gtk-rs/gir-files @ ebea076)
// DO NOT EDIT
extern crate gstreamer_app_sys;
extern crate shell_words;
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extern crate tempfile;
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use gstreamer_app_sys::*;
use std::env;
use std::error::Error;
use std::mem::{align_of, size_of};
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use std::path::Path;
use std::process::Command;
use std::str;
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use tempfile::Builder;
static PACKAGES: &[&str] = &["gstreamer-app-1.0"];
#[derive(Clone, Debug)]
struct Compiler {
pub args: Vec<String>,
}
impl Compiler {
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pub fn new() -> Result<Compiler, Box<dyn 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);
}
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pub fn compile(&self, src: &Path, out: &Path) -> Result<(), Box<dyn Error>> {
let mut cmd = self.to_command();
cmd.arg(src);
cmd.arg("-o");
cmd.arg(out);
let status = cmd.spawn()?.wait()?;
if !status.success() {
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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
}
}
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fn get_var(name: &str, default: &str) -> Result<Vec<String>, Box<dyn 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()),
}
}
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fn pkg_config_cflags(packages: &[&str]) -> Result<Vec<String>, Box<dyn 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() {
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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: {})",
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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() {
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let tmpdir = Builder::new()
.prefix("abi")
.tempdir()
.expect("temporary directory");
let cc = Compiler::new().expect("configured compiler");
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assert_eq!(
"1",
get_c_value(tmpdir.path(), &cc, "1").expect("C constant"),
"failed to obtain correct constant value for 1"
);
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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);
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}
Ok(ref c_value) => {
if rust_value == c_value {
results.record_passed();
} else {
results.record_failed();
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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() {
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let tmpdir = Builder::new()
.prefix("abi")
.tempdir()
.expect("temporary directory");
let cc = Compiler::new().expect("configured compiler");
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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"
);
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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);
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}
Ok(c_layout) => {
if rust_layout == c_layout {
results.record_passed();
} else {
results.record_failed();
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eprintln!(
"Layout mismatch for {}\nRust: {:?}\nC: {:?}",
name, rust_layout, &c_layout
);
}
}
};
if (i + 1) % 25 == 0 {
println!("layout ... {}", results.summary());
}
}
results.expect_total_success();
}
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fn get_c_layout(dir: &Path, cc: &Compiler, name: &str) -> Result<Layout, Box<dyn 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() {
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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();
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Ok(Layout { size, alignment })
}
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fn get_c_value(dir: &Path, cc: &Compiler, name: &str) -> Result<String, Box<dyn 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() {
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return Err(format!("command {:?} failed, {:?}", &abi_cmd, &output).into());
}
let output = str::from_utf8(&output.stdout)?.trim();
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if !output.starts_with("###gir test###") || !output.ends_with("###gir test###") {
return Err(format!(
"command {:?} return invalid output, {:?}",
&abi_cmd, &output
)
.into());
}
Ok(String::from(&output[14..(output.len() - 14)]))
}
const RUST_LAYOUTS: &[(&str, Layout)] = &[
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(
"GstAppSink",
Layout {
size: size_of::<GstAppSink>(),
alignment: align_of::<GstAppSink>(),
},
),
(
"GstAppSinkCallbacks",
Layout {
size: size_of::<GstAppSinkCallbacks>(),
alignment: align_of::<GstAppSinkCallbacks>(),
},
),
(
"GstAppSinkClass",
Layout {
size: size_of::<GstAppSinkClass>(),
alignment: align_of::<GstAppSinkClass>(),
},
),
(
"GstAppSrc",
Layout {
size: size_of::<GstAppSrc>(),
alignment: align_of::<GstAppSrc>(),
},
),
(
"GstAppSrcCallbacks",
Layout {
size: size_of::<GstAppSrcCallbacks>(),
alignment: align_of::<GstAppSrcCallbacks>(),
},
),
(
"GstAppSrcClass",
Layout {
size: size_of::<GstAppSrcClass>(),
alignment: align_of::<GstAppSrcClass>(),
},
),
(
"GstAppStreamType",
Layout {
size: size_of::<GstAppStreamType>(),
alignment: align_of::<GstAppStreamType>(),
},
),
];
const RUST_CONSTANTS: &[(&str, &str)] = &[
("(gint) GST_APP_STREAM_TYPE_RANDOM_ACCESS", "2"),
("(gint) GST_APP_STREAM_TYPE_SEEKABLE", "1"),
("(gint) GST_APP_STREAM_TYPE_STREAM", "0"),
];