Adding upstream version 86.0.1.upstream/86.0.1upstream

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 155 insertions, 0 deletions

diff --git a/third_party/rust/libloading/tests/functions.rs b/third_party/rust/libloading/tests/functions.rs
new file mode 100644
index 0000000000..dece58c585
--- /dev/null
+++ b/third_party/rust/libloading/tests/functions.rs
@@ -0,0 +1,155 @@
+extern crate libloading;
+use libloading::{Symbol, Library};
+
+const LIBPATH: &'static str = concat!(env!("OUT_DIR"), "/libtest_helpers.dll");
+
+fn make_helpers() {
+    static ONCE: ::std::sync::Once = ::std::sync::Once::new();
+    ONCE.call_once(|| {
+        let mut outpath = String::from(if let Some(od) = option_env!("OUT_DIR") { od } else { return });
+        let rustc = option_env!("RUSTC").unwrap_or_else(|| { "rustc".into() });
+        outpath.push_str(&"/libtest_helpers.dll"); // extension for windows required, POSIX does not care.
+        let _ = ::std::process::Command::new(rustc)
+            .arg("src/test_helpers.rs")
+            .arg("-o")
+            .arg(outpath)
+            .arg("-O")
+            .output()
+            .expect("could not compile the test helpers!");
+    });
+}
+
+#[test]
+fn test_id_u32() {
+    make_helpers();
+    let lib = Library::new(LIBPATH).unwrap();
+    unsafe {
+        let f: Symbol<unsafe extern fn(u32) -> u32> = lib.get(b"test_identity_u32\0").unwrap();
+        assert_eq!(42, f(42));
+    }
+}
+
+#[repr(C)]
+#[derive(Clone,Copy,PartialEq,Debug)]
+struct S {
+    a: u64,
+    b: u32,
+    c: u16,
+    d: u8
+}
+
+#[test]
+fn test_id_struct() {
+    make_helpers();
+    let lib = Library::new(LIBPATH).unwrap();
+    unsafe {
+        let f: Symbol<unsafe extern fn(S) -> S> = lib.get(b"test_identity_struct\0").unwrap();
+        assert_eq!(S { a: 1, b: 2, c: 3, d: 4 }, f(S { a: 1, b: 2, c: 3, d: 4 }));
+    }
+}
+
+#[test]
+fn test_0_no_0() {
+    make_helpers();
+    let lib = Library::new(LIBPATH).unwrap();
+    unsafe {
+        let f: Symbol<unsafe extern fn(S) -> S> = lib.get(b"test_identity_struct\0").unwrap();
+        let f2: Symbol<unsafe extern fn(S) -> S> = lib.get(b"test_identity_struct").unwrap();
+        assert_eq!(*f, *f2);
+    }
+}
+
+#[test]
+fn wrong_name_fails() {
+    Library::new(concat!(env!("OUT_DIR"), "/libtest_help")).err().unwrap();
+}
+
+#[test]
+fn missing_symbol_fails() {
+    make_helpers();
+    let lib = Library::new(LIBPATH).unwrap();
+    unsafe {
+        lib.get::<*mut ()>(b"test_does_not_exist").err().unwrap();
+        lib.get::<*mut ()>(b"test_does_not_exist\0").err().unwrap();
+    }
+}
+
+#[test]
+fn interior_null_fails() {
+    make_helpers();
+    let lib = Library::new(LIBPATH).unwrap();
+    unsafe {
+        lib.get::<*mut ()>(b"test_does\0_not_exist").err().unwrap();
+        lib.get::<*mut ()>(b"test\0_does_not_exist\0").err().unwrap();
+    }
+}
+
+#[test]
+fn test_incompatible_type() {
+    make_helpers();
+    let lib = Library::new(LIBPATH).unwrap();
+    unsafe {
+        assert!(match lib.get::<()>(b"test_identity_u32\0") {
+           Err(libloading::Error::IncompatibleSize) => true,
+           _ => false,
+        })
+    }
+}
+
+#[test]
+fn test_incompatible_type_named_fn() {
+    make_helpers();
+    unsafe fn get<'a, T>(l: &'a Library, _: T) -> Result<Symbol<'a, T>, libloading::Error> {
+        l.get::<T>(b"test_identity_u32\0")
+    }
+    let lib = Library::new(LIBPATH).unwrap();
+    unsafe {
+        assert!(match get(&lib, test_incompatible_type_named_fn) {
+           Err(libloading::Error::IncompatibleSize) => true,
+           _ => false,
+        })
+    }
+}
+
+#[test]
+fn test_static_u32() {
+    make_helpers();
+    let lib = Library::new(LIBPATH).unwrap();
+    unsafe {
+        let var: Symbol<*mut u32> = lib.get(b"TEST_STATIC_U32\0").unwrap();
+        **var = 42;
+        let help: Symbol<unsafe extern fn() -> u32> = lib.get(b"test_get_static_u32\0").unwrap();
+        assert_eq!(42, help());
+    }
+}
+
+#[test]
+fn test_static_ptr() {
+    make_helpers();
+    let lib = Library::new(LIBPATH).unwrap();
+    unsafe {
+        let var: Symbol<*mut *mut ()> = lib.get(b"TEST_STATIC_PTR\0").unwrap();
+        **var = *var as *mut _;
+        let works: Symbol<unsafe extern fn() -> bool> =
+            lib.get(b"test_check_static_ptr\0").unwrap();
+        assert!(works());
+    }
+}
+
+#[cfg(any(windows, target_os="linux"))]
+#[cfg(test_nightly)]
+#[test]
+fn test_tls_static() {
+    make_helpers();
+    let lib = Library::new(LIBPATH).unwrap();
+    unsafe {
+        let var: Symbol<*mut u32> = lib.get(b"TEST_THREAD_LOCAL\0").unwrap();
+        **var = 84;
+        let help: Symbol<unsafe extern fn() -> u32> = lib.get(b"test_get_thread_local\0").unwrap();
+        assert_eq!(84, help());
+    }
+    ::std::thread::spawn(move || unsafe {
+        let help: Symbol<unsafe extern fn() -> u32> = lib.get(b"test_get_thread_local\0").unwrap();
+        assert_eq!(0, help());
+    }).join().unwrap();
+}