third_party_rust_cxx/tests/test.rs
2020-10-29 21:21:30 -07:00

259 lines
8.4 KiB
Rust

use cxx_test_suite::extra::ffi2;
use cxx_test_suite::ffi;
use std::cell::Cell;
use std::ffi::CStr;
thread_local! {
static CORRECT: Cell<bool> = Cell::new(false);
}
#[no_mangle]
extern "C" fn cxx_test_suite_set_correct() {
CORRECT.with(|correct| correct.set(true));
}
macro_rules! check {
($run:expr) => {{
CORRECT.with(|correct| correct.set(false));
$run;
assert!(CORRECT.with(|correct| correct.get()), stringify!($run));
}};
}
#[test]
fn test_c_return() {
let shared = ffi::Shared { z: 2020 };
let ns_shared = ffi::AShared { z: 2020 };
let nested_ns_shared = ffi::ABShared { z: 2020 };
assert_eq!(2020, ffi::c_return_primitive());
assert_eq!(2020, ffi::c_return_shared().z);
assert_eq!(2020, *ffi::c_return_box());
ffi::c_return_unique_ptr();
ffi2::c_return_ns_unique_ptr();
assert_eq!(2020, *ffi::c_return_ref(&shared));
assert_eq!(2020, *ffi::c_return_ns_ref(&ns_shared));
assert_eq!(2020, *ffi::c_return_nested_ns_ref(&nested_ns_shared));
assert_eq!("2020", ffi::c_return_str(&shared));
assert_eq!(b"2020\0", ffi::c_return_sliceu8(&shared));
assert_eq!("2020", ffi::c_return_rust_string());
assert_eq!("2020", ffi::c_return_unique_ptr_string().to_str().unwrap());
assert_eq!(4, ffi::c_return_unique_ptr_vector_u8().len());
assert_eq!(
200_u8,
ffi::c_return_unique_ptr_vector_u8().into_iter().sum(),
);
assert_eq!(
200.5_f64,
ffi::c_return_unique_ptr_vector_f64().into_iter().sum(),
);
assert_eq!(2, ffi::c_return_unique_ptr_vector_shared().len());
assert_eq!(
2021_usize,
ffi::c_return_unique_ptr_vector_shared()
.into_iter()
.map(|o| o.z)
.sum(),
);
assert_eq!(2020, ffi::c_return_identity(2020));
assert_eq!(2021, ffi::c_return_sum(2020, 1));
match ffi::c_return_enum(0) {
enm @ ffi::Enum::AVal => assert_eq!(0, enm.repr),
_ => assert!(false),
}
match ffi::c_return_enum(1) {
enm @ ffi::Enum::BVal => assert_eq!(2020, enm.repr),
_ => assert!(false),
}
match ffi::c_return_enum(2021) {
enm @ ffi::Enum::CVal => assert_eq!(2021, enm.repr),
_ => assert!(false),
}
match ffi::c_return_ns_enum(0) {
enm @ ffi::AEnum::AAVal => assert_eq!(0, enm.repr),
_ => assert!(false),
}
match ffi::c_return_nested_ns_enum(0) {
enm @ ffi::ABEnum::ABAVal => assert_eq!(0, enm.repr),
_ => assert!(false),
}
}
#[test]
fn test_c_try_return() {
assert_eq!((), ffi::c_try_return_void().unwrap());
assert_eq!(2020, ffi::c_try_return_primitive().unwrap());
assert_eq!(
"logic error",
ffi::c_fail_return_primitive().unwrap_err().what(),
);
assert_eq!(2020, *ffi::c_try_return_box().unwrap());
assert_eq!("2020", *ffi::c_try_return_ref(&"2020".to_owned()).unwrap());
assert_eq!("2020", ffi::c_try_return_str("2020").unwrap());
assert_eq!(b"2020", ffi::c_try_return_sliceu8(b"2020").unwrap());
assert_eq!("2020", ffi::c_try_return_rust_string().unwrap());
assert_eq!("2020", &*ffi::c_try_return_unique_ptr_string().unwrap());
}
#[test]
fn test_c_take() {
let unique_ptr = ffi::c_return_unique_ptr();
let unique_ptr_ns = ffi2::c_return_ns_unique_ptr();
check!(ffi::c_take_primitive(2020));
check!(ffi::c_take_shared(ffi::Shared { z: 2020 }));
check!(ffi::c_take_ns_shared(ffi::AShared { z: 2020 }));
check!(ffi::ns_c_take_ns_shared(ffi::AShared { z: 2020 }));
check!(ffi::c_take_nested_ns_shared(ffi::ABShared { z: 2020 }));
check!(ffi::c_take_box(Box::new(2020)));
check!(ffi::c_take_ref_c(&unique_ptr));
check!(ffi2::c_take_ref_ns_c(&unique_ptr_ns));
check!(cxx_test_suite::module::ffi::c_take_unique_ptr(unique_ptr));
check!(ffi::c_take_str("2020"));
check!(ffi::c_take_sliceu8(b"2020"));
check!(ffi::c_take_rust_string("2020".to_owned()));
check!(ffi::c_take_unique_ptr_string(
ffi::c_return_unique_ptr_string()
));
check!(ffi::c_take_unique_ptr_vector_u8(
ffi::c_return_unique_ptr_vector_u8()
));
check!(ffi::c_take_unique_ptr_vector_f64(
ffi::c_return_unique_ptr_vector_f64()
));
check!(ffi::c_take_unique_ptr_vector_shared(
ffi::c_return_unique_ptr_vector_shared()
));
check!(ffi::c_take_ref_vector(&ffi::c_return_unique_ptr_vector_u8()));
let test_vec = [86_u8, 75_u8, 30_u8, 9_u8].to_vec();
check!(ffi::c_take_rust_vec(test_vec.clone()));
check!(ffi::c_take_rust_vec_index(test_vec.clone()));
let shared_test_vec = vec![ffi::Shared { z: 1010 }, ffi::Shared { z: 1011 }];
check!(ffi::c_take_rust_vec_shared(shared_test_vec.clone()));
check!(ffi::c_take_rust_vec_shared_index(shared_test_vec.clone()));
check!(ffi::c_take_rust_vec_shared_forward_iterator(
shared_test_vec,
));
check!(ffi::c_take_ref_rust_vec(&test_vec));
check!(ffi::c_take_ref_rust_vec_index(&test_vec));
check!(ffi::c_take_ref_rust_vec_copy(&test_vec));
let ns_shared_test_vec = vec![ffi::AShared { z: 1010 }, ffi::AShared { z: 1011 }];
check!(ffi::c_take_rust_vec_ns_shared(ns_shared_test_vec));
let nested_ns_shared_test_vec = vec![ffi::ABShared { z: 1010 }, ffi::ABShared { z: 1011 }];
check!(ffi::c_take_rust_vec_nested_ns_shared(
nested_ns_shared_test_vec
));
check!(ffi::c_take_enum(ffi::Enum::AVal));
check!(ffi::c_take_ns_enum(ffi::AEnum::AAVal));
check!(ffi::c_take_nested_ns_enum(ffi::ABEnum::ABAVal));
}
/*
// https://github.com/dtolnay/cxx/issues/232
#[test]
fn test_c_callback() {
fn callback(s: String) -> usize {
if s == "2020" {
cxx_test_suite_set_correct();
}
0
}
check!(ffi::c_take_callback(callback));
}
*/
#[test]
fn test_c_call_r() {
fn cxx_run_test() {
extern "C" {
fn cxx_run_test() -> *const i8;
}
let failure = unsafe { cxx_run_test() };
if !failure.is_null() {
let msg = unsafe { CStr::from_ptr(failure as *mut std::os::raw::c_char) };
eprintln!("{}", msg.to_string_lossy());
}
}
check!(cxx_run_test());
}
#[test]
fn test_c_method_calls() {
let mut unique_ptr = ffi::c_return_unique_ptr();
let old_value = unique_ptr.get();
assert_eq!(2020, old_value);
assert_eq!(2021, unique_ptr.set(2021));
assert_eq!(2021, unique_ptr.get());
assert_eq!(old_value, unique_ptr.set2(old_value));
assert_eq!(old_value, unique_ptr.get2());
assert_eq!(2022, unique_ptr.set_succeed(2022).unwrap());
assert!(unique_ptr.get_fail().is_err());
}
#[test]
fn test_c_ns_method_calls() {
let unique_ptr = ffi2::ns_c_return_unique_ptr_ns();
let old_value = unique_ptr.get();
assert_eq!(1000, old_value);
}
#[test]
fn test_enum_representations() {
assert_eq!(0, ffi::Enum::AVal.repr);
assert_eq!(2020, ffi::Enum::BVal.repr);
assert_eq!(2021, ffi::Enum::CVal.repr);
}
#[no_mangle]
extern "C" fn cxx_test_suite_get_box() -> *mut cxx_test_suite::R {
Box::into_raw(Box::new(2020usize))
}
#[no_mangle]
unsafe extern "C" fn cxx_test_suite_r_is_correct(r: *const cxx_test_suite::R) -> bool {
*r == 2020
}
#[test]
fn test_rust_name_attribute() {
assert_eq!("2020", ffi::i32_overloaded_function(2020));
assert_eq!("2020", ffi::str_overloaded_function("2020"));
let unique_ptr = ffi::c_return_unique_ptr();
assert_eq!("2020", unique_ptr.i32_overloaded_method(2020));
assert_eq!("2020", unique_ptr.str_overloaded_method("2020"));
}
#[test]
fn test_extern_trivial() {
let d = ffi2::c_return_trivial();
check!(ffi2::c_take_trivial_ref(&d));
check!(ffi2::c_take_trivial(d));
let d = ffi2::c_return_trivial_ptr();
check!(ffi2::c_take_trivial_ptr(d));
cxx::UniquePtr::new(ffi2::D { d: 42 });
let d = ffi2::ns_c_return_trivial();
check!(ffi2::ns_c_take_trivial(d));
let g = ffi2::c_return_trivial_ns();
check!(ffi2::c_take_trivial_ns_ref(&g));
check!(ffi2::c_take_trivial_ns(g));
let g = ffi2::c_return_trivial_ns_ptr();
check!(ffi2::c_take_trivial_ns_ptr(g));
cxx::UniquePtr::new(ffi2::G { g: 42 });
}
#[test]
fn test_extern_opaque() {
let e = ffi2::c_return_opaque_ptr();
check!(ffi2::c_take_opaque_ref(e.as_ref().unwrap()));
check!(ffi2::c_take_opaque_ptr(e));
let f = ffi2::c_return_ns_opaque_ptr();
check!(ffi2::c_take_opaque_ns_ref(f.as_ref().unwrap()));
check!(ffi2::c_take_opaque_ns_ptr(f));
}