test: Verify Logger::list_recordings()'s behavior with empty storage.

[gps-watch.git] / test / logger_test.rs

diff --git a/test/logger_test.rs b/test/logger_test.rs
index 614108bf5eb2cc5bd5c70a8e72a017cfe1a51145..bbf8dd56b2254448275e030b613b5d49b932a86d 100644 (file)
--- a/test/logger_test.rs
+++ b/test/logger_test.rs
@@ -21,6 +21,8 @@
  * WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
  */
 
+use std::io::{Read, Write};
+use std::os::unix::io::FromRawFd;
 use common::buffer::{Buffer, BufferUserData};
 use common::gps;
 use common::storage::{Storage, Error};
@@ -78,10 +80,12 @@ impl Pipe {
 
         unsafe {
             extern {
-                fn pipe(pipefd: *mut i32) -> i32;
+                fn pipe2(pipefd: *mut i32, flags: i32) -> i32;
             }
 
-            pipe(pipe_fd.as_mut_ptr());
+            const O_NONBLOCK : i32 = 0x800;
+
+            pipe2(pipe_fd.as_mut_ptr(), O_NONBLOCK);
         }
 
         Pipe {
@@ -346,3 +350,83 @@ fn get_recording_valid() {
 
     assert!(logger.get_recording(1, &mut yenc_buffer).is_ok());
 }
+
+// Verifies that Logger::list_recordings() shows an empty listing
+// if there are no recordings.
+#[test]
+fn list_recordings0() {
+    let pipe = Pipe::new();
+
+    let mut file = unsafe { std::fs::File::from_raw_fd(pipe.write_fd()) };
+
+    let mut ls_buffer_space = [0u8; 4096];
+    let mut ls_buffer = Buffer::alloc();
+
+    let user_data = (&mut file as *mut std::fs::File) as *mut BufferUserData;
+
+    ls_buffer.init(ls_buffer_space.as_mut_ptr(),
+                   ls_buffer_space.len(),
+                   flush_write_buffer,
+                   user_data);
+
+    let mut fake_storage = FakeStorage::new();
+
+    let mut logger = Logger::new(&mut fake_storage);
+    logger.init();
+
+    logger.list_recordings(&mut ls_buffer);
+
+    let mut file = unsafe { std::fs::File::from_raw_fd(pipe.read_fd()) };
+
+    let mut listing_raw = [0u8; 256];
+
+    // There are no recordings, so there's no data in the pipe either.
+    assert!(file.read(&mut listing_raw).is_err());
+}
+
+// Verifies that Logger::list_recordings() shows a listing
+// of a single recording in the very first sector.
+#[test]
+fn list_recordings1() {
+    let pipe = Pipe::new();
+
+    let mut file = unsafe { std::fs::File::from_raw_fd(pipe.write_fd()) };
+
+    let mut ls_buffer_space = [0u8; 4096];
+    let mut ls_buffer = Buffer::alloc();
+
+    let user_data = (&mut file as *mut std::fs::File) as *mut BufferUserData;
+
+    ls_buffer.init(ls_buffer_space.as_mut_ptr(),
+                   ls_buffer_space.len(),
+                   flush_write_buffer,
+                   user_data);
+
+    let mut fake_storage = FakeStorage::new();
+
+    // Mark first sector as in use.
+    let recording0 = [
+        // Header:
+        0x01, 0x00, 0x01, 0x00,
+        0xa2, 0xdb, 0x14, 0x5e,
+    ];
+
+    fake_storage.expected[0..recording0.len()].copy_from_slice(&recording0);
+    fake_storage.actual[0..recording0.len()].copy_from_slice(&recording0);
+
+    let mut logger = Logger::new(&mut fake_storage);
+    logger.init();
+
+    logger.list_recordings(&mut ls_buffer);
+
+    let mut file = unsafe { std::fs::File::from_raw_fd(pipe.read_fd()) };
+
+    let mut listing_raw = [0u8; 256];
+    let num_bytes_read = file.read(&mut listing_raw).unwrap();
+
+    let expected_bytes = b"\
+2020-01-07 19:27:30              1\n";
+
+    assert_eq!(String::from_utf8(expected_bytes.to_vec()).unwrap(),
+               String::from_utf8(listing_raw[0..num_bytes_read].to_vec()).unwrap());
+}