1 files changed, 122 insertions, 0 deletions
diff --git a/cc/tests/support/mod.rs b/cc/tests/support/mod.rs
new file mode 100644
index 0000000..bb56bf3
--- /dev/null
+++ b/cc/tests/support/mod.rs
@@ -0,0 +1,122 @@
+#![allow(dead_code)]
+
+use std::env;
+use std::ffi::OsStr;
+use std::fs::{self, File};
+use std::io::prelude::*;
+use std::path::PathBuf;
+
+use cc;
+use tempdir::TempDir;
+
+pub struct Test {
+    pub td: TempDir,
+    pub gcc: PathBuf,
+    pub msvc: bool,
+}
+
+pub struct Execution {
+    args: Vec<String>,
+}
+
+impl Test {
+    pub fn new() -> Test {
+        let mut gcc = PathBuf::from(env::current_exe().unwrap());
+        gcc.pop();
+        if gcc.ends_with("deps") {
+            gcc.pop();
+        }
+        gcc.push(format!("gcc-shim{}", env::consts::EXE_SUFFIX));
+        Test {
+            td: TempDir::new("gcc-test").unwrap(),
+            gcc: gcc,
+            msvc: false,
+        }
+    }
+
+    pub fn gnu() -> Test {
+        let t = Test::new();
+        t.shim("cc").shim("c++").shim("ar");
+        t
+    }
+
+    pub fn msvc() -> Test {
+        let mut t = Test::new();
+        t.shim("cl").shim("lib.exe");
+        t.msvc = true;
+        t
+    }
+
+    pub fn shim(&self, name: &str) -> &Test {
+        let fname = format!("{}{}", name, env::consts::EXE_SUFFIX);
+        fs::hard_link(&self.gcc, self.td.path().join(&fname))
+            .or_else(|_| fs::copy(&self.gcc, self.td.path().join(&fname)).map(|_| ()))
+            .unwrap();
+        self
+    }
+
+    pub fn gcc(&self) -> cc::Build {
+        let mut cfg = cc::Build::new();
+        let mut path = env::split_paths(&env::var_os("PATH").unwrap()).collect::<Vec<_>>();
+        path.insert(0, self.td.path().to_owned());
+        let target = if self.msvc {
+            "x86_64-pc-windows-msvc"
+        } else {
+            "x86_64-unknown-linux-gnu"
+        };
+
+        cfg.target(target)
+            .host(target)
+            .opt_level(2)
+            .debug(false)
+            .out_dir(self.td.path())
+            .__set_env("PATH", env::join_paths(path).unwrap())
+            .__set_env("GCCTEST_OUT_DIR", self.td.path());
+        if self.msvc {
+            cfg.compiler(self.td.path().join("cl"));
+            cfg.archiver(self.td.path().join("lib.exe"));
+        }
+        cfg
+    }
+
+    pub fn cmd(&self, i: u32) -> Execution {
+        let mut s = String::new();
+        File::open(self.td.path().join(format!("out{}", i)))
+            .unwrap()
+            .read_to_string(&mut s)
+            .unwrap();
+        Execution { args: s.lines().map(|s| s.to_string()).collect() }
+    }
+}
+
+impl Execution {
+    pub fn must_have<P: AsRef<OsStr>>(&self, p: P) -> &Execution {
+        if !self.has(p.as_ref()) {
+            panic!("didn't find {:?} in {:?}", p.as_ref(), self.args);
+        } else {
+            self
+        }
+    }
+
+    pub fn must_not_have<P: AsRef<OsStr>>(&self, p: P) -> &Execution {
+        if self.has(p.as_ref()) {
+            panic!("found {:?}", p.as_ref());
+        } else {
+            self
+        }
+    }
+
+    pub fn has(&self, p: &OsStr) -> bool {
+        self.args.iter().any(|arg| OsStr::new(arg) == p)
+    }
+
+    pub fn must_have_in_order(&self, before: &str, after: &str) -> &Execution {
+        let before_position = self.args.iter().rposition(|x| OsStr::new(x) == OsStr::new(before));
+        let after_position = self.args.iter().rposition(|x| OsStr::new(x) == OsStr::new(after));
+        match (before_position, after_position) {
+            (Some(b), Some(a)) if b < a => {},
+            (b, a) => { panic!("{:?} (last position: {:?}) did not appear before {:?} (last position: {:?})", before, b, after, a) },
+        };
+        self
+    }
+}