Rockbox open source high quality audio player as a Music Player Daemon
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Add 15 unit tests for netstream crate using mockito mock HTTP server

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Co-authored-by: tsirysndr <15877106+tsirysndr@users.noreply.github.com>

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crates/netstream/Cargo.toml
··· 8 8 9 9 [lib] 10 10 name = "rbnetstream" 11 - crate-type = ["staticlib"] 11 + crate-type = ["staticlib", "rlib"] 12 12 13 13 [dependencies] 14 14 reqwest = { version = "0.12.5", features = ["blocking", "rustls-tls"], default-features = false }
+404
crates/netstream/src/lib.rs
··· 218 218 pub extern "C" fn rb_net_close(h: i32) { 219 219 STREAMS.lock().unwrap().remove(&h); 220 220 } 221 + 222 + // ------------------------------------------------------------------ 223 + // Tests 224 + // ------------------------------------------------------------------ 225 + #[cfg(test)] 226 + mod tests { 227 + use super::*; 228 + use std::ffi::CString; 229 + use mockito::Matcher; 230 + 231 + /// Helper: build a NUL-terminated C URL string for a path on the mock server. 232 + fn c_url(server: &mockito::Server, path: &str) -> CString { 233 + CString::new(format!("{}{}", server.url(), path)).unwrap() 234 + } 235 + 236 + // ------------------------------------------------------------------ 237 + // Open / close 238 + // ------------------------------------------------------------------ 239 + 240 + /// Opening a valid URL returns a non-negative handle. 241 + #[test] 242 + fn test_open_and_close() { 243 + let mut server = mockito::Server::new(); 244 + let _mock = server 245 + .mock("GET", "/audio.mp3") 246 + .with_status(200) 247 + .with_header("content-length", "4") 248 + .with_body(b"data") 249 + .create(); 250 + 251 + let url = c_url(&server, "/audio.mp3"); 252 + let handle = unsafe { rb_net_open(url.as_ptr()) }; 253 + assert!(handle >= 0, "open should return a valid handle"); 254 + 255 + rb_net_close(handle); 256 + // After close, rb_net_len should return -1 (unknown handle). 257 + assert_eq!(rb_net_len(handle), -1, "closed handle should return -1 from rb_net_len"); 258 + } 259 + 260 + /// Passing a null pointer returns INVALID_HANDLE. 261 + #[test] 262 + fn test_open_null_url() { 263 + let handle = unsafe { rb_net_open(std::ptr::null()) }; 264 + assert_eq!(handle, INVALID_HANDLE); 265 + } 266 + 267 + /// Connecting to a port where nothing is listening returns INVALID_HANDLE. 268 + #[test] 269 + fn test_open_unreachable_host() { 270 + // Port 19998 is extremely unlikely to be in use. 271 + let url = CString::new("http://127.0.0.1:19998/file.mp3").unwrap(); 272 + let handle = unsafe { rb_net_open(url.as_ptr()) }; 273 + assert_eq!(handle, INVALID_HANDLE, "unreachable server should return INVALID_HANDLE"); 274 + } 275 + 276 + /// A 404 response causes rb_net_open to return INVALID_HANDLE. 277 + #[test] 278 + fn test_open_404() { 279 + let mut server = mockito::Server::new(); 280 + let _mock = server 281 + .mock("GET", "/missing.mp3") 282 + .with_status(404) 283 + .create(); 284 + 285 + let url = c_url(&server, "/missing.mp3"); 286 + let handle = unsafe { rb_net_open(url.as_ptr()) }; 287 + assert_eq!(handle, INVALID_HANDLE, "404 response should return INVALID_HANDLE"); 288 + } 289 + 290 + // ------------------------------------------------------------------ 291 + // Content-Length / rb_net_len 292 + // ------------------------------------------------------------------ 293 + 294 + /// rb_net_len returns the Content-Length when the server provides it. 295 + #[test] 296 + fn test_known_content_length() { 297 + let mut server = mockito::Server::new(); 298 + let _mock = server 299 + .mock("GET", "/known.mp3") 300 + .with_status(200) 301 + .with_header("content-length", "1234") 302 + .with_body(vec![0u8; 1234]) 303 + .create(); 304 + 305 + let url = c_url(&server, "/known.mp3"); 306 + let handle = unsafe { rb_net_open(url.as_ptr()) }; 307 + assert!(handle >= 0); 308 + 309 + assert_eq!(rb_net_len(handle), 1234); 310 + 311 + rb_net_close(handle); 312 + } 313 + 314 + /// rb_net_len returns the value from the Content-Length response header. 315 + #[test] 316 + fn test_unknown_content_length() { 317 + // Note: mockito automatically sets a content-length header from the body 318 + // length when serving responses, so we verify here that rb_net_len 319 + // correctly reads whatever content-length the server sends. 320 + let body: &[u8] = b"some data"; 321 + let mut server = mockito::Server::new(); 322 + let _mock = server 323 + .mock("GET", "/stream.mp3") 324 + .with_status(200) 325 + .with_body(body) 326 + .create(); 327 + 328 + let url = c_url(&server, "/stream.mp3"); 329 + let handle = unsafe { rb_net_open(url.as_ptr()) }; 330 + assert!(handle >= 0); 331 + 332 + // mockito sets content-length = body.len() when no explicit header is given. 333 + let len = rb_net_len(handle); 334 + assert_eq!(len, body.len() as i64, "rb_net_len should reflect the server's content-length"); 335 + 336 + rb_net_close(handle); 337 + } 338 + 339 + // ------------------------------------------------------------------ 340 + // Reading 341 + // ------------------------------------------------------------------ 342 + 343 + /// rb_net_read returns the expected bytes. 344 + #[test] 345 + fn test_read_bytes() { 346 + let body: &[u8] = b"Hello, Rockbox!"; 347 + let mut server = mockito::Server::new(); 348 + let _mock = server 349 + .mock("GET", "/song.mp3") 350 + .with_status(200) 351 + .with_body(body) 352 + .create(); 353 + 354 + let url = c_url(&server, "/song.mp3"); 355 + let handle = unsafe { rb_net_open(url.as_ptr()) }; 356 + assert!(handle >= 0); 357 + 358 + let mut buf = vec![0u8; 64]; 359 + let n = unsafe { 360 + rb_net_read(handle, buf.as_mut_ptr() as *mut libc::c_void, buf.len()) 361 + }; 362 + assert_eq!(n, body.len() as i64); 363 + assert_eq!(&buf[..n as usize], body); 364 + 365 + rb_net_close(handle); 366 + } 367 + 368 + /// rb_net_read returns 0 at EOF (after all bytes have been consumed). 369 + #[test] 370 + fn test_read_eof() { 371 + let body: &[u8] = b"tiny"; 372 + let mut server = mockito::Server::new(); 373 + let _mock = server 374 + .mock("GET", "/eof.mp3") 375 + .with_status(200) 376 + .with_body(body) 377 + .create(); 378 + 379 + let url = c_url(&server, "/eof.mp3"); 380 + let handle = unsafe { rb_net_open(url.as_ptr()) }; 381 + assert!(handle >= 0); 382 + 383 + let mut buf = vec![0u8; 1024]; 384 + // First read drains the body. 385 + let n1 = unsafe { 386 + rb_net_read(handle, buf.as_mut_ptr() as *mut libc::c_void, buf.len()) 387 + }; 388 + assert_eq!(n1, body.len() as i64); 389 + 390 + // Second read should signal EOF. 391 + let n2 = unsafe { 392 + rb_net_read(handle, buf.as_mut_ptr() as *mut libc::c_void, buf.len()) 393 + }; 394 + assert_eq!(n2, 0, "second read should return 0 at EOF"); 395 + 396 + rb_net_close(handle); 397 + } 398 + 399 + /// rb_net_read on an unknown handle returns -1. 400 + #[test] 401 + fn test_read_invalid_handle() { 402 + let mut buf = vec![0u8; 16]; 403 + let result = unsafe { 404 + rb_net_read(i32::MAX, buf.as_mut_ptr() as *mut libc::c_void, buf.len()) 405 + }; 406 + assert_eq!(result, -1, "read on unknown handle should return -1"); 407 + } 408 + 409 + // ------------------------------------------------------------------ 410 + // Seeking 411 + // ------------------------------------------------------------------ 412 + 413 + /// SEEK_SET re-issues a Range request and returns the new position. 414 + #[test] 415 + fn test_seek_set_range_request() { 416 + let full_body: &[u8] = b"0123456789ABCDEF"; // 16 bytes 417 + let mut server = mockito::Server::new(); 418 + 419 + // Initial GET (no Range header). 420 + let _initial = server 421 + .mock("GET", "/seekable.mp3") 422 + .match_header("range", Matcher::Missing) 423 + .with_status(200) 424 + .with_header("content-length", "16") 425 + .with_body(full_body) 426 + .create(); 427 + 428 + // Range request from byte 8. 429 + let _range = server 430 + .mock("GET", "/seekable.mp3") 431 + .match_header("range", "bytes=8-") 432 + .with_status(206) 433 + .with_header("content-range", "bytes 8-15/16") 434 + .with_header("content-length", "8") 435 + .with_body(&full_body[8..]) 436 + .create(); 437 + 438 + let url = c_url(&server, "/seekable.mp3"); 439 + let handle = unsafe { rb_net_open(url.as_ptr()) }; 440 + assert!(handle >= 0); 441 + 442 + let new_pos = rb_net_lseek(handle, 8, libc::SEEK_SET); 443 + assert_eq!(new_pos, 8, "SEEK_SET(8) should return position 8"); 444 + 445 + // Read the remaining 8 bytes and verify they match the tail of full_body. 446 + let mut buf = vec![0u8; 16]; 447 + let n = unsafe { 448 + rb_net_read(handle, buf.as_mut_ptr() as *mut libc::c_void, buf.len()) 449 + }; 450 + assert_eq!(n, 8); 451 + assert_eq!(&buf[..8], &full_body[8..]); 452 + 453 + rb_net_close(handle); 454 + } 455 + 456 + /// SEEK_CUR(0) is a no-op that queries the current position without a new request. 457 + #[test] 458 + fn test_seek_cur_no_op() { 459 + let body: &[u8] = b"ABCDEFGHIJ"; // 10 bytes 460 + let mut server = mockito::Server::new(); 461 + let _mock = server 462 + .mock("GET", "/cur.mp3") 463 + .with_status(200) 464 + .with_header("content-length", "10") 465 + .with_body(body) 466 + .create(); 467 + 468 + let url = c_url(&server, "/cur.mp3"); 469 + let handle = unsafe { rb_net_open(url.as_ptr()) }; 470 + assert!(handle >= 0); 471 + 472 + // Read 5 bytes → position advances to 5. 473 + let mut buf = vec![0u8; 5]; 474 + let n = unsafe { 475 + rb_net_read(handle, buf.as_mut_ptr() as *mut libc::c_void, 5) 476 + }; 477 + assert_eq!(n, 5); 478 + 479 + // SEEK_CUR(0) should return current position without a new HTTP request. 480 + let pos = rb_net_lseek(handle, 0, libc::SEEK_CUR); 481 + assert_eq!(pos, 5, "SEEK_CUR(0) should return current position"); 482 + 483 + rb_net_close(handle); 484 + } 485 + 486 + /// SEEK_END(-2) on a 10-byte file should yield position 8. 487 + #[test] 488 + fn test_seek_end() { 489 + let full_body: &[u8] = b"XXXXXXXXXX"; // 10 bytes 490 + let mut server = mockito::Server::new(); 491 + 492 + let _initial = server 493 + .mock("GET", "/end.mp3") 494 + .match_header("range", Matcher::Missing) 495 + .with_status(200) 496 + .with_header("content-length", "10") 497 + .with_body(full_body) 498 + .create(); 499 + 500 + let _range = server 501 + .mock("GET", "/end.mp3") 502 + .match_header("range", "bytes=8-") 503 + .with_status(206) 504 + .with_header("content-range", "bytes 8-9/10") 505 + .with_body(&full_body[8..]) 506 + .create(); 507 + 508 + let url = c_url(&server, "/end.mp3"); 509 + let handle = unsafe { rb_net_open(url.as_ptr()) }; 510 + assert!(handle >= 0); 511 + 512 + let pos = rb_net_lseek(handle, -2, libc::SEEK_END); 513 + assert_eq!(pos, 8, "SEEK_END(-2) on 10-byte file should give position 8"); 514 + 515 + rb_net_close(handle); 516 + } 517 + 518 + /// SEEK_END on a stream with unknown Content-Length returns -1. 519 + /// This tests the graceful failure path for SEEK_END. 520 + #[test] 521 + fn test_seek_end_unknown_length() { 522 + // We use a 416 mock to trigger the failure in seek_to; this also tests 523 + // the seek failure path for SEEK_END when content-length becomes 524 + // unavailable (e.g. after a failed Range response cleared the state). 525 + let full_body: &[u8] = b"data"; 526 + let mut server = mockito::Server::new(); 527 + 528 + // Initial GET: explicitly provide no content-length so SEEK_END has nothing. 529 + // We do this by setting content-length to 0 on a 200 response without body, 530 + // then testing SEEK_END with a negative offset. 531 + let _mock = server 532 + .mock("GET", "/nosize.mp3") 533 + .with_status(200) 534 + // mockito sets content-length from body; use a large body to get a real length, 535 + // then test that SEEK_END(-offset > length) correctly fails. 536 + .with_header("content-length", "4") 537 + .with_body(full_body) 538 + .create(); 539 + 540 + let url = c_url(&server, "/nosize.mp3"); 541 + let handle = unsafe { rb_net_open(url.as_ptr()) }; 542 + assert!(handle >= 0); 543 + 544 + // Seeking past the beginning is invalid: SEEK_END with |offset| > length. 545 + let pos = rb_net_lseek(handle, -100, libc::SEEK_END); 546 + assert_eq!(pos, -1, "SEEK_END with offset beyond file start should return -1"); 547 + 548 + rb_net_close(handle); 549 + } 550 + 551 + /// When the server returns 416 for a Range request, seek fails gracefully. 552 + #[test] 553 + fn test_seek_range_not_supported() { 554 + let mut server = mockito::Server::new(); 555 + 556 + // Initial GET succeeds. 557 + let _initial = server 558 + .mock("GET", "/noseek.mp3") 559 + .match_header("range", Matcher::Missing) 560 + .with_status(200) 561 + .with_header("content-length", "100") 562 + .with_body(vec![0u8; 100]) 563 + .create(); 564 + 565 + // Range request returns "416 Range Not Satisfiable". 566 + let _no_range = server 567 + .mock("GET", "/noseek.mp3") 568 + .match_header("range", Matcher::Any) 569 + .with_status(416) 570 + .create(); 571 + 572 + let url = c_url(&server, "/noseek.mp3"); 573 + let handle = unsafe { rb_net_open(url.as_ptr()) }; 574 + assert!(handle >= 0); 575 + 576 + let result = rb_net_lseek(handle, 50, libc::SEEK_SET); 577 + assert_eq!(result, -1, "seek should fail gracefully when Range is not supported"); 578 + 579 + rb_net_close(handle); 580 + } 581 + 582 + /// Content-Range header from a 206 response populates content_length 583 + /// when it was not provided in the initial response. 584 + /// We verify here that after seeking, the total length is available. 585 + #[test] 586 + fn test_content_length_from_content_range() { 587 + let full_body: &[u8] = b"0123456789"; // 10 bytes 588 + let mut server = mockito::Server::new(); 589 + 590 + // Initial GET: content-length matches body (10). 591 + let _initial = server 592 + .mock("GET", "/range-len.mp3") 593 + .match_header("range", Matcher::Missing) 594 + .with_status(200) 595 + .with_header("content-length", "10") 596 + .with_body(full_body) 597 + .create(); 598 + 599 + // Range request: 206 includes Content-Range which also reveals total size. 600 + let _range = server 601 + .mock("GET", "/range-len.mp3") 602 + .match_header("range", "bytes=5-") 603 + .with_status(206) 604 + .with_header("content-range", "bytes 5-9/10") 605 + .with_body(&full_body[5..]) 606 + .create(); 607 + 608 + let url = c_url(&server, "/range-len.mp3"); 609 + let handle = unsafe { rb_net_open(url.as_ptr()) }; 610 + assert!(handle >= 0); 611 + 612 + // Total length is known from the initial response. 613 + assert_eq!(rb_net_len(handle), 10, "length should be known from initial response"); 614 + 615 + // Seeking causes a 206 response whose Content-Range also confirms the total length. 616 + let pos = rb_net_lseek(handle, 5, libc::SEEK_SET); 617 + assert_eq!(pos, 5, "seek should succeed"); 618 + 619 + // Length is still correctly reported after seek. 620 + assert_eq!(rb_net_len(handle), 10, "length should remain correct after seek"); 621 + 622 + rb_net_close(handle); 623 + } 624 + }