1 #![allow(
2 clippy::assertions_on_constants,
3 clippy::assertions_on_result_states,
4 clippy::cast_possible_truncation,
5 clippy::cast_possible_wrap,
6 clippy::float_cmp,
7 clippy::needless_pass_by_value,
8 clippy::unit_cmp,
9 clippy::unseparated_literal_suffix
10 )]
11
12 use cxx::SharedPtr;
13 use cxx_test_suite::module::ffi2;
14 use cxx_test_suite::{cast, ffi, R};
15 use std::cell::Cell;
16 use std::ffi::CStr;
17
18 thread_local! {
19 static CORRECT: Cell<bool> = Cell::new(false);
20 }
21
22 #[no_mangle]
cxx_test_suite_set_correct()23 extern "C" fn cxx_test_suite_set_correct() {
24 CORRECT.with(|correct| correct.set(true));
25 }
26
27 macro_rules! check {
28 ($run:expr) => {{
29 CORRECT.with(|correct| correct.set(false));
30 $run;
31 assert!(CORRECT.with(Cell::get), "{}", stringify!($run));
32 }};
33 }
34
35 #[test]
test_c_return()36 fn test_c_return() {
37 let shared = ffi::Shared { z: 2020 };
38 let ns_shared = ffi::AShared { z: 2020 };
39 let nested_ns_shared = ffi::ABShared { z: 2020 };
40
41 assert_eq!(2020, ffi::c_return_primitive());
42 assert_eq!(2020, ffi::c_return_shared().z);
43 assert_eq!(2020, ffi::c_return_box().0);
44 ffi::c_return_unique_ptr();
45 ffi2::c_return_ns_unique_ptr();
46 assert_eq!(2020, *ffi::c_return_ref(&shared));
47 assert_eq!(2020, *ffi::c_return_ns_ref(&ns_shared));
48 assert_eq!(2020, *ffi::c_return_nested_ns_ref(&nested_ns_shared));
49 assert_eq!("2020", ffi::c_return_str(&shared));
50 assert_eq!(
51 b"2020\0",
52 cast::c_char_to_unsigned(ffi::c_return_slice_char(&shared)),
53 );
54 assert_eq!("2020", ffi::c_return_rust_string());
55 assert_eq!("Hello \u{fffd}World", ffi::c_return_rust_string_lossy());
56 assert_eq!("2020", ffi::c_return_unique_ptr_string().to_str().unwrap());
57 assert_eq!(4, ffi::c_return_unique_ptr_vector_u8().len());
58 assert_eq!(
59 200_u8,
60 ffi::c_return_unique_ptr_vector_u8().into_iter().sum(),
61 );
62 assert_eq!(
63 200.5_f64,
64 ffi::c_return_unique_ptr_vector_f64().into_iter().sum(),
65 );
66 assert_eq!(2, ffi::c_return_unique_ptr_vector_shared().len());
67 assert_eq!(
68 2021_usize,
69 ffi::c_return_unique_ptr_vector_shared()
70 .into_iter()
71 .map(|o| o.z)
72 .sum(),
73 );
74 assert_eq!(b"\x02\0\x02\0"[..], ffi::c_return_rust_vec_u8());
75 assert_eq!([true, true, false][..], ffi::c_return_rust_vec_bool());
76 assert_eq!(2020, ffi::c_return_identity(2020));
77 assert_eq!(2021, ffi::c_return_sum(2020, 1));
78 match ffi::c_return_enum(0) {
79 enm @ ffi::Enum::AVal => assert_eq!(0, enm.repr),
80 _ => assert!(false),
81 }
82 match ffi::c_return_enum(1) {
83 enm @ ffi::Enum::BVal => assert_eq!(2020, enm.repr),
84 _ => assert!(false),
85 }
86 match ffi::c_return_enum(2021) {
87 enm @ ffi::Enum::LastVal => assert_eq!(2021, enm.repr),
88 _ => assert!(false),
89 }
90 match ffi::c_return_ns_enum(0) {
91 enm @ ffi::AEnum::AAVal => assert_eq!(0, enm.repr),
92 _ => assert!(false),
93 }
94 match ffi::c_return_nested_ns_enum(0) {
95 enm @ ffi::ABEnum::ABAVal => assert_eq!(0, enm.repr),
96 _ => assert!(false),
97 }
98 }
99
100 #[test]
test_c_try_return()101 fn test_c_try_return() {
102 assert_eq!((), ffi::c_try_return_void().unwrap());
103 assert_eq!(2020, ffi::c_try_return_primitive().unwrap());
104 assert_eq!(
105 "logic error",
106 ffi::c_fail_return_primitive().unwrap_err().what(),
107 );
108 assert_eq!(2020, ffi::c_try_return_box().unwrap().0);
109 assert_eq!("2020", *ffi::c_try_return_ref(&"2020".to_owned()).unwrap());
110 assert_eq!("2020", ffi::c_try_return_str("2020").unwrap());
111 assert_eq!(b"2020", ffi::c_try_return_sliceu8(b"2020").unwrap());
112 assert_eq!("2020", ffi::c_try_return_rust_string().unwrap());
113 assert_eq!("2020", &*ffi::c_try_return_unique_ptr_string().unwrap());
114 }
115
116 #[test]
test_c_take()117 fn test_c_take() {
118 let unique_ptr = ffi::c_return_unique_ptr();
119 let unique_ptr_ns = ffi2::c_return_ns_unique_ptr();
120
121 check!(ffi::c_take_primitive(2020));
122 check!(ffi::c_take_shared(ffi::Shared { z: 2020 }));
123 check!(ffi::c_take_ns_shared(ffi::AShared { z: 2020 }));
124 check!(ffi::ns_c_take_ns_shared(ffi::AShared { z: 2020 }));
125 check!(ffi::c_take_nested_ns_shared(ffi::ABShared { z: 2020 }));
126 check!(ffi::c_take_box(Box::new(R(2020))));
127 check!(ffi::c_take_ref_c(&unique_ptr));
128 check!(ffi2::c_take_ref_ns_c(&unique_ptr_ns));
129 check!(cxx_test_suite::module::ffi::c_take_unique_ptr(unique_ptr));
130 check!(ffi::c_take_str("2020"));
131 check!(ffi::c_take_slice_char(cast::unsigned_to_c_char(b"2020")));
132 check!(ffi::c_take_slice_shared(&[
133 ffi::Shared { z: 2020 },
134 ffi::Shared { z: 2021 },
135 ]));
136 let shared_sort_slice = &mut [
137 ffi::Shared { z: 2 },
138 ffi::Shared { z: 0 },
139 ffi::Shared { z: 7 },
140 ffi::Shared { z: 4 },
141 ];
142 check!(ffi::c_take_slice_shared_sort(shared_sort_slice));
143 assert_eq!(shared_sort_slice[0].z, 0);
144 assert_eq!(shared_sort_slice[1].z, 2);
145 assert_eq!(shared_sort_slice[2].z, 4);
146 assert_eq!(shared_sort_slice[3].z, 7);
147 let r_sort_slice = &mut [R(2020), R(2050), R(2021)];
148 check!(ffi::c_take_slice_r(r_sort_slice));
149 check!(ffi::c_take_slice_r_sort(r_sort_slice));
150 assert_eq!(r_sort_slice[0].0, 2020);
151 assert_eq!(r_sort_slice[1].0, 2021);
152 assert_eq!(r_sort_slice[2].0, 2050);
153 check!(ffi::c_take_rust_string("2020".to_owned()));
154 check!(ffi::c_take_unique_ptr_string(
155 ffi::c_return_unique_ptr_string()
156 ));
157 let mut vector = ffi::c_return_unique_ptr_vector_u8();
158 assert_eq!(vector.pin_mut().pop(), Some(9));
159 check!(ffi::c_take_unique_ptr_vector_u8(vector));
160 let mut vector = ffi::c_return_unique_ptr_vector_f64();
161 vector.pin_mut().push(9.0);
162 check!(ffi::c_take_unique_ptr_vector_f64(vector));
163 let mut vector = ffi::c_return_unique_ptr_vector_shared();
164 vector.pin_mut().push(ffi::Shared { z: 9 });
165 check!(ffi::c_take_unique_ptr_vector_shared(vector));
166 check!(ffi::c_take_ref_vector(&ffi::c_return_unique_ptr_vector_u8()));
167 let test_vec = [86_u8, 75_u8, 30_u8, 9_u8].to_vec();
168 check!(ffi::c_take_rust_vec(test_vec.clone()));
169 check!(ffi::c_take_rust_vec_index(test_vec.clone()));
170 let shared_test_vec = vec![ffi::Shared { z: 1010 }, ffi::Shared { z: 1011 }];
171 check!(ffi::c_take_rust_vec_shared(shared_test_vec.clone()));
172 check!(ffi::c_take_rust_vec_shared_index(shared_test_vec.clone()));
173 check!(ffi::c_take_rust_vec_shared_push(shared_test_vec.clone()));
174 check!(ffi::c_take_rust_vec_shared_truncate(
175 shared_test_vec.clone()
176 ));
177 check!(ffi::c_take_rust_vec_shared_clear(shared_test_vec.clone()));
178 check!(ffi::c_take_rust_vec_shared_forward_iterator(
179 shared_test_vec,
180 ));
181 let shared_sort_vec = vec![
182 ffi::Shared { z: 2 },
183 ffi::Shared { z: 0 },
184 ffi::Shared { z: 7 },
185 ffi::Shared { z: 4 },
186 ];
187 check!(ffi::c_take_rust_vec_shared_sort(shared_sort_vec));
188 check!(ffi::c_take_ref_rust_vec(&test_vec));
189 check!(ffi::c_take_ref_rust_vec_index(&test_vec));
190 check!(ffi::c_take_ref_rust_vec_copy(&test_vec));
191 check!(ffi::c_take_ref_shared_string(&ffi::SharedString {
192 msg: "2020".to_owned()
193 }));
194 let ns_shared_test_vec = vec![ffi::AShared { z: 1010 }, ffi::AShared { z: 1011 }];
195 check!(ffi::c_take_rust_vec_ns_shared(ns_shared_test_vec));
196 let nested_ns_shared_test_vec = vec![ffi::ABShared { z: 1010 }, ffi::ABShared { z: 1011 }];
197 check!(ffi::c_take_rust_vec_nested_ns_shared(
198 nested_ns_shared_test_vec
199 ));
200
201 check!(ffi::c_take_enum(ffi::Enum::AVal));
202 check!(ffi::c_take_ns_enum(ffi::AEnum::AAVal));
203 check!(ffi::c_take_nested_ns_enum(ffi::ABEnum::ABAVal));
204 }
205
206 #[test]
test_c_callback()207 fn test_c_callback() {
208 fn callback(s: String) -> usize {
209 if s == "2020" {
210 cxx_test_suite_set_correct();
211 }
212 0
213 }
214
215 #[allow(clippy::ptr_arg)]
216 fn callback_ref(s: &String) {
217 if s == "2020" {
218 cxx_test_suite_set_correct();
219 }
220 }
221
222 fn callback_mut(s: &mut String) {
223 if s == "2020" {
224 cxx_test_suite_set_correct();
225 }
226 }
227
228 check!(ffi::c_take_callback(callback));
229 check!(ffi::c_take_callback_ref(callback_ref));
230 check!(ffi::c_take_callback_ref_lifetime(callback_ref));
231 check!(ffi::c_take_callback_mut(callback_mut));
232 }
233
234 #[test]
test_c_call_r()235 fn test_c_call_r() {
236 fn cxx_run_test() {
237 extern "C" {
238 fn cxx_run_test() -> *const i8;
239 }
240 let failure = unsafe { cxx_run_test() };
241 if !failure.is_null() {
242 let msg = unsafe { CStr::from_ptr(failure as *mut std::os::raw::c_char) };
243 eprintln!("{}", msg.to_string_lossy());
244 }
245 }
246 check!(cxx_run_test());
247 }
248
249 #[test]
test_c_method_calls()250 fn test_c_method_calls() {
251 let mut unique_ptr = ffi::c_return_unique_ptr();
252
253 let old_value = unique_ptr.get();
254 assert_eq!(2020, old_value);
255 assert_eq!(2021, unique_ptr.pin_mut().set(2021));
256 assert_eq!(2021, unique_ptr.get());
257 assert_eq!(2021, unique_ptr.get2());
258 assert_eq!(2021, *unique_ptr.getRef());
259 assert_eq!(2021, *unique_ptr.pin_mut().getMut());
260 assert_eq!(2022, unique_ptr.pin_mut().set_succeed(2022).unwrap());
261 assert!(unique_ptr.pin_mut().get_fail().is_err());
262 assert_eq!(2021, ffi::Shared { z: 0 }.c_method_on_shared());
263 assert_eq!(2022, *ffi::Shared { z: 2022 }.c_method_ref_on_shared());
264 assert_eq!(2023, *ffi::Shared { z: 2023 }.c_method_mut_on_shared());
265
266 let val = 42;
267 let mut array = ffi::Array {
268 a: [0, 0, 0, 0],
269 b: ffi::Buffer::default(),
270 };
271 array.c_set_array(val);
272 assert_eq!(array.a.len() as i32 * val, array.r_get_array_sum());
273 }
274
275 #[test]
test_shared_ptr_weak_ptr()276 fn test_shared_ptr_weak_ptr() {
277 let shared_ptr = ffi::c_return_shared_ptr();
278 let weak_ptr = SharedPtr::downgrade(&shared_ptr);
279 assert_eq!(1, ffi::c_get_use_count(&weak_ptr));
280
281 assert!(!weak_ptr.upgrade().is_null());
282 assert_eq!(1, ffi::c_get_use_count(&weak_ptr));
283
284 drop(shared_ptr);
285 assert_eq!(0, ffi::c_get_use_count(&weak_ptr));
286 assert!(weak_ptr.upgrade().is_null());
287 }
288
289 #[test]
test_c_ns_method_calls()290 fn test_c_ns_method_calls() {
291 let unique_ptr = ffi2::ns_c_return_unique_ptr_ns();
292
293 let old_value = unique_ptr.get();
294 assert_eq!(1000, old_value);
295 }
296
297 #[test]
test_enum_representations()298 fn test_enum_representations() {
299 assert_eq!(0, ffi::Enum::AVal.repr);
300 assert_eq!(2020, ffi::Enum::BVal.repr);
301 assert_eq!(2021, ffi::Enum::LastVal.repr);
302 }
303
304 #[test]
test_debug()305 fn test_debug() {
306 assert_eq!("Shared { z: 1 }", format!("{:?}", ffi::Shared { z: 1 }));
307 assert_eq!("BVal", format!("{:?}", ffi::Enum::BVal));
308 assert_eq!("Enum(9)", format!("{:?}", ffi::Enum { repr: 9 }));
309 }
310
311 #[no_mangle]
cxx_test_suite_get_box() -> *mut R312 extern "C" fn cxx_test_suite_get_box() -> *mut R {
313 Box::into_raw(Box::new(R(2020usize)))
314 }
315
316 #[no_mangle]
cxx_test_suite_r_is_correct(r: *const R) -> bool317 unsafe extern "C" fn cxx_test_suite_r_is_correct(r: *const R) -> bool {
318 (*r).0 == 2020
319 }
320
321 #[test]
test_rust_name_attribute()322 fn test_rust_name_attribute() {
323 assert_eq!("2020", ffi::i32_overloaded_function(2020));
324 assert_eq!("2020", ffi::str_overloaded_function("2020"));
325 let unique_ptr = ffi::c_return_unique_ptr();
326 assert_eq!("2020", unique_ptr.i32_overloaded_method(2020));
327 assert_eq!("2020", unique_ptr.str_overloaded_method("2020"));
328 }
329
330 #[test]
test_extern_trivial()331 fn test_extern_trivial() {
332 let mut d = ffi2::c_return_trivial();
333 check!(ffi2::c_take_trivial_ref(&d));
334 check!(d.c_take_trivial_ref_method());
335 check!(d.c_take_trivial_mut_ref_method());
336 check!(ffi2::c_take_trivial(d));
337 let mut d = ffi2::c_return_trivial_ptr();
338 check!(d.c_take_trivial_ref_method());
339 check!(d.c_take_trivial_mut_ref_method());
340 check!(ffi2::c_take_trivial_ptr(d));
341 cxx::UniquePtr::new(ffi2::D { d: 42 });
342 let d = ffi2::ns_c_return_trivial();
343 check!(ffi2::ns_c_take_trivial(d));
344
345 let g = ffi2::c_return_trivial_ns();
346 check!(ffi2::c_take_trivial_ns_ref(&g));
347 check!(ffi2::c_take_trivial_ns(g));
348 let g = ffi2::c_return_trivial_ns_ptr();
349 check!(ffi2::c_take_trivial_ns_ptr(g));
350 cxx::UniquePtr::new(ffi2::G { g: 42 });
351 }
352
353 #[test]
test_extern_opaque()354 fn test_extern_opaque() {
355 let mut e = ffi2::c_return_opaque_ptr();
356 check!(ffi2::c_take_opaque_ref(e.as_ref().unwrap()));
357 check!(e.c_take_opaque_ref_method());
358 check!(e.pin_mut().c_take_opaque_mut_ref_method());
359 check!(ffi2::c_take_opaque_ptr(e));
360
361 let f = ffi2::c_return_ns_opaque_ptr();
362 check!(ffi2::c_take_opaque_ns_ref(f.as_ref().unwrap()));
363 check!(ffi2::c_take_opaque_ns_ptr(f));
364 }
365
366 #[test]
test_raw_ptr()367 fn test_raw_ptr() {
368 let c = ffi::c_return_mut_ptr(2023);
369 let mut c_unique = unsafe { cxx::UniquePtr::from_raw(c) };
370 assert_eq!(2023, c_unique.pin_mut().set_succeed(2023).unwrap());
371 // c will be dropped as it's now in a UniquePtr
372
373 let c2 = ffi::c_return_mut_ptr(2024);
374 assert_eq!(2024, unsafe { ffi::c_take_const_ptr(c2) });
375 assert_eq!(2024, unsafe { ffi::c_take_mut_ptr(c2) }); // deletes c2
376
377 let c3 = ffi::c_return_const_ptr(2025);
378 assert_eq!(2025, unsafe { ffi::c_take_const_ptr(c3) });
379 assert_eq!(2025, unsafe { ffi::c_take_mut_ptr(c3 as *mut ffi::C) }); // deletes c3
380 }
381