Add skeleton testing framework

6 files changed, 254 insertions, 2 deletions

diff --git a/.gitignore b/.gitignore
index 4fffb2f89c..a9d37c560c 100644
--- a/.gitignore
+++ b/.gitignore
@@ -1,2 +1,2 @@
-/target
-/Cargo.lock
+target
+Cargo.lock
diff --git a/libc-test/Cargo.lock b/libc-test/Cargo.lock
new file mode 100644
index 0000000000..23d47b0a50
--- /dev/null
+++ b/libc-test/Cargo.lock
@@ -0,0 +1,100 @@
+[root]
+name = "libc-test"
+version = "0.1.0"
+dependencies = [
+ "gcc 0.3.13 (registry+https://github.com/rust-lang/crates.io-index)",
+ "libc 0.1.10",
+ "syntex_syntax 0.13.0 (registry+https://github.com/rust-lang/crates.io-index)",
+]
+
+[[package]]
+name = "advapi32-sys"
+version = "0.1.2"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+dependencies = [
+ "winapi 0.2.2 (registry+https://github.com/rust-lang/crates.io-index)",
+ "winapi-build 0.1.1 (registry+https://github.com/rust-lang/crates.io-index)",
+]
+
+[[package]]
+name = "bitflags"
+version = "0.3.2"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+
+[[package]]
+name = "gcc"
+version = "0.3.13"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+dependencies = [
+ "advapi32-sys 0.1.2 (registry+https://github.com/rust-lang/crates.io-index)",
+ "winapi 0.2.2 (registry+https://github.com/rust-lang/crates.io-index)",
+]
+
+[[package]]
+name = "kernel32-sys"
+version = "0.1.4"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+dependencies = [
+ "winapi 0.2.2 (registry+https://github.com/rust-lang/crates.io-index)",
+ "winapi-build 0.1.1 (registry+https://github.com/rust-lang/crates.io-index)",
+]
+
+[[package]]
+name = "libc"
+version = "0.1.10"
+
+[[package]]
+name = "libc"
+version = "0.1.10"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+
+[[package]]
+name = "log"
+version = "0.3.2"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+dependencies = [
+ "libc 0.1.10 (registry+https://github.com/rust-lang/crates.io-index)",
+]
+
+[[package]]
+name = "rustc-serialize"
+version = "0.3.16"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+
+[[package]]
+name = "syntex_syntax"
+version = "0.13.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+dependencies = [
+ "bitflags 0.3.2 (registry+https://github.com/rust-lang/crates.io-index)",
+ "libc 0.1.10 (registry+https://github.com/rust-lang/crates.io-index)",
+ "log 0.3.2 (registry+https://github.com/rust-lang/crates.io-index)",
+ "rustc-serialize 0.3.16 (registry+https://github.com/rust-lang/crates.io-index)",
+ "term 0.2.11 (registry+https://github.com/rust-lang/crates.io-index)",
+ "unicode-xid 0.0.3 (registry+https://github.com/rust-lang/crates.io-index)",
+]
+
+[[package]]
+name = "term"
+version = "0.2.11"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+dependencies = [
+ "kernel32-sys 0.1.4 (registry+https://github.com/rust-lang/crates.io-index)",
+ "winapi 0.2.2 (registry+https://github.com/rust-lang/crates.io-index)",
+]
+
+[[package]]
+name = "unicode-xid"
+version = "0.0.3"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+
+[[package]]
+name = "winapi"
+version = "0.2.2"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+
+[[package]]
+name = "winapi-build"
+version = "0.1.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+
diff --git a/libc-test/Cargo.toml b/libc-test/Cargo.toml
new file mode 100644
index 0000000000..dfad9b7273
--- /dev/null
+++ b/libc-test/Cargo.toml
@@ -0,0 +1,17 @@
+[package]
+name = "libc-test"
+version = "0.1.0"
+authors = ["Alex Crichton <alex@alexcrichton.com>"]
+build = "build.rs"
+
+[dependencies]
+libc = { path = ".." }
+
+[build-dependencies]
+syntex_syntax = "*"
+gcc = "0.3"
+
+[lib]
+name = "libc_test"
+test = false
+doctest = false
diff --git a/libc-test/build.rs b/libc-test/build.rs
new file mode 100644
index 0000000000..556e7575a7
--- /dev/null
+++ b/libc-test/build.rs
@@ -0,0 +1,130 @@
+#![allow(unused_must_use)]
+
+extern crate gcc;
+extern crate syntex_syntax as syntax;
+
+use std::env;
+use std::fs::File;
+use std::io::BufWriter;
+use std::io::prelude::*;
+use std::path::{Path, PathBuf};
+
+use syntax::ast;
+use syntax::parse::token::InternedString;
+use syntax::attr;
+use syntax::parse::{self, ParseSess};
+use syntax::visit::{self, Visitor};
+
+struct TestGenerator {
+    rust: Box<Write>,
+    c: Box<Write>,
+}
+
+fn main() {
+    let sess = ParseSess::new();
+
+    let src = Path::new("../src/lib.rs");
+    let cfg = Vec::new();
+    let mut krate = parse::parse_crate_from_file(src, cfg, &sess);
+    build_cfg(&mut krate.config);
+
+    let mut gated_cfgs = Vec::new();
+    let krate = syntax::config::strip_unconfigured_items(&sess.span_diagnostic,
+                                                         krate,
+                                                         &mut gated_cfgs);
+
+    let out = PathBuf::from(env::var_os("OUT_DIR").unwrap());
+    let rust_out = BufWriter::new(File::create(out.join("all.rs")).unwrap());
+    let mut c_out = BufWriter::new(File::create(out.join("all.c")).unwrap());
+
+    writeln!(c_out, "
+#include <netinet/in.h>
+#include <netinet/ip.h>
+#include <signal.h>
+#include <stdint.h>
+#include <sys/types.h>
+#include <time.h>
+");
+
+    visit::walk_crate(&mut TestGenerator {
+        rust: Box::new(rust_out),
+        c: Box::new(c_out),
+    }, &krate);
+
+    gcc::Config::new()
+                .file(out.join("all.c"))
+                .compile("liball.a");
+}
+
+fn build_cfg(cfg: &mut ast::CrateConfig) {
+    let target = env::var("TARGET").unwrap();
+
+    let (arch, target_pointer_width) = if target.starts_with("x86_64") {
+        ("x86_64", "64")
+    } else if target.starts_with("i686") {
+        ("x86", "32")
+    } else {
+        panic!("unknown arch/pointer width: {}", target)
+    };
+    let (os, family, env) = if target.contains("unknown-linux") {
+        ("linux", "unix", "gnu")
+    } else {
+        panic!("unknown os/family width: {}", target)
+    };
+
+    let mk = attr::mk_name_value_item_str;
+    let s = InternedString::new;
+    cfg.push(attr::mk_word_item(s(family)));
+    cfg.push(mk(s("target_os"), s(os)));
+    cfg.push(mk(s("target_family"), s(family)));
+    cfg.push(mk(s("target_arch"), s(arch)));
+    // skip endianness
+    cfg.push(mk(s("target_pointer_width"), s(target_pointer_width)));
+    cfg.push(mk(s("target_env"), s(env)));
+}
+
+impl TestGenerator {
+    fn typedef(&mut self, ty: &str) {
+        let cty = if ty.starts_with("c_") {
+            let rest = ty[2..].replace("long", " long");
+            if rest.starts_with("u") {
+                format!("unsigned {}", &rest[1..])
+            } else {
+                rest
+            }
+        } else {
+            (match ty {
+                ty => ty,
+            }).to_string()
+        };
+        writeln!(self.c, r#"
+            uint64_t ty_{ty}_size() {{
+                return sizeof({cty});
+            }}
+        "#, ty = ty, cty = cty);
+        writeln!(self.rust, r#"
+            #[test]
+            fn test_{ty}_size() {{
+                extern {{ fn ty_{ty}_size() -> u64; }}
+                assert_eq!(mem::size_of::<libc::{ty}>() as u64,
+                           unsafe {{ ty_{ty}_size() }});
+            }}
+        "#, ty = ty);
+    }
+}
+
+impl<'v> Visitor<'v> for TestGenerator {
+     fn visit_item(&mut self, i: &'v ast::Item) {
+         match i.node {
+             ast::ItemTy(_, ref generics) => {
+                 assert!(generics.lifetimes.len() == 0);
+                 assert!(generics.ty_params.len() == 0);
+                 assert!(generics.where_clause.predicates.len() == 0);
+                 self.typedef(&i.ident.to_string());
+             }
+
+             _ => {}
+         }
+         visit::walk_item(self, i)
+     }
+}
diff --git a/libc-test/src/lib.rs b/libc-test/src/lib.rs
new file mode 100644
index 0000000000..e69de29bb2
--- /dev/null
+++ b/libc-test/src/lib.rs
diff --git a/libc-test/tests/all.rs b/libc-test/tests/all.rs
new file mode 100644
index 0000000000..1f615b3cfe
--- /dev/null
+++ b/libc-test/tests/all.rs
@@ -0,0 +1,5 @@
+extern crate libc;
+extern crate libc_test;
+
+#[cfg(test)]
+include!(concat!(env!("OUT_DIR"), "/all.rs"));