From ee3a8caa7d480284b0a188b3a2bf37a59925f50b Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?Sebastian=20Dr=C3=B6ge?= Date: Mon, 6 Apr 2020 19:32:07 +0300 Subject: [PATCH] gstreamer/buffer: Add various tests for the BufferCursor / BufferCursorRef --- gstreamer/src/buffer.rs | 184 ++++++++++++++++++++++++++++++++++++++++ 1 file changed, 184 insertions(+) diff --git a/gstreamer/src/buffer.rs b/gstreamer/src/buffer.rs index ae59041e0..fa9f9bf78 100644 --- a/gstreamer/src/buffer.rs +++ b/gstreamer/src/buffer.rs @@ -1856,4 +1856,188 @@ mod tests { assert_eq!(last, 4); } + + #[test] + fn test_buffer_cursor() { + use std::io::{self, Read, Seek, Write}; + + ::init().unwrap(); + + let mut buffer = Buffer::new(); + { + let buffer = buffer.get_mut().unwrap(); + buffer.append_memory(::Memory::from_mut_slice(vec![0; 5])); + buffer.append_memory(::Memory::from_mut_slice(vec![0; 5])); + buffer.append_memory(::Memory::from_mut_slice(vec![0; 5])); + buffer.append_memory(::Memory::from_mut_slice(vec![0; 5])); + buffer.append_memory(::Memory::from_mut_slice(vec![0; 10])); + } + + assert!(buffer.is_all_memory_writable()); + assert_eq!(buffer.n_memory(), 5); + assert_eq!(buffer.get_size(), 30); + + let mut cursor = buffer.into_buffer_cursor_writable().unwrap(); + assert_eq!(cursor.stream_position().unwrap(), 0); + cursor.write_all(b"01234567").unwrap(); + assert_eq!(cursor.stream_position().unwrap(), 8); + cursor.write_all(b"890123").unwrap(); + assert_eq!(cursor.stream_position().unwrap(), 14); + cursor.write_all(b"456").unwrap(); + assert_eq!(cursor.stream_position().unwrap(), 17); + cursor.write_all(b"78901234567").unwrap(); + assert_eq!(cursor.stream_position().unwrap(), 28); + cursor.write_all(b"89").unwrap(); + assert_eq!(cursor.stream_position().unwrap(), 30); + assert!(cursor.write_all(b"0").is_err()); + + assert_eq!(cursor.seek(io::SeekFrom::Start(5)).unwrap(), 5); + assert_eq!(cursor.stream_position().unwrap(), 5); + cursor.write_all(b"A").unwrap(); + + assert_eq!(cursor.seek(io::SeekFrom::End(5)).unwrap(), 25); + assert_eq!(cursor.stream_position().unwrap(), 25); + cursor.write_all(b"B").unwrap(); + + assert_eq!(cursor.seek(io::SeekFrom::Current(-1)).unwrap(), 25); + assert_eq!(cursor.stream_position().unwrap(), 25); + cursor.write_all(b"C").unwrap(); + + assert_eq!(cursor.seek(io::SeekFrom::Current(1)).unwrap(), 27); + assert_eq!(cursor.stream_position().unwrap(), 27); + cursor.write_all(b"D").unwrap(); + + let buffer = cursor.into_buffer(); + + let mut cursor = buffer.into_buffer_cursor_readable(); + let mut data = [0; 30]; + + assert_eq!(cursor.stream_position().unwrap(), 0); + cursor.read_exact(&mut data[0..7]).unwrap(); + assert_eq!(cursor.stream_position().unwrap(), 7); + assert_eq!(&data[0..7], b"01234A6"); + cursor.read_exact(&mut data[0..5]).unwrap(); + assert_eq!(cursor.stream_position().unwrap(), 12); + assert_eq!(&data[0..5], b"78901"); + cursor.read_exact(&mut data[0..10]).unwrap(); + assert_eq!(cursor.stream_position().unwrap(), 22); + assert_eq!(&data[0..10], b"2345678901"); + cursor.read_exact(&mut data[0..8]).unwrap(); + assert_eq!(cursor.stream_position().unwrap(), 30); + assert_eq!(&data[0..8], b"234C6D89"); + assert!(cursor.read_exact(&mut data[0..1]).is_err()); + + assert_eq!(cursor.seek(io::SeekFrom::Start(5)).unwrap(), 5); + assert_eq!(cursor.stream_position().unwrap(), 5); + cursor.read_exact(&mut data[0..1]).unwrap(); + assert_eq!(&data[0..1], b"A"); + + assert_eq!(cursor.seek(io::SeekFrom::End(5)).unwrap(), 25); + assert_eq!(cursor.stream_position().unwrap(), 25); + cursor.read_exact(&mut data[0..1]).unwrap(); + assert_eq!(&data[0..1], b"C"); + + assert_eq!(cursor.seek(io::SeekFrom::Current(-1)).unwrap(), 25); + assert_eq!(cursor.stream_position().unwrap(), 25); + cursor.read_exact(&mut data[0..1]).unwrap(); + assert_eq!(&data[0..1], b"C"); + + assert_eq!(cursor.seek(io::SeekFrom::Current(1)).unwrap(), 27); + assert_eq!(cursor.stream_position().unwrap(), 27); + cursor.read_exact(&mut data[0..1]).unwrap(); + assert_eq!(&data[0..1], b"D"); + } + + #[test] + fn test_buffer_cursor_ref() { + use std::io::{self, Read, Seek, Write}; + + ::init().unwrap(); + + let mut buffer = Buffer::new(); + { + let buffer = buffer.get_mut().unwrap(); + buffer.append_memory(::Memory::from_mut_slice(vec![0; 5])); + buffer.append_memory(::Memory::from_mut_slice(vec![0; 5])); + buffer.append_memory(::Memory::from_mut_slice(vec![0; 5])); + buffer.append_memory(::Memory::from_mut_slice(vec![0; 5])); + buffer.append_memory(::Memory::from_mut_slice(vec![0; 10])); + } + + assert!(buffer.is_all_memory_writable()); + assert_eq!(buffer.n_memory(), 5); + assert_eq!(buffer.get_size(), 30); + + { + let buffer = buffer.get_mut().unwrap(); + + let mut cursor = buffer.as_buffer_cursor_ref_writable().unwrap(); + assert_eq!(cursor.stream_position().unwrap(), 0); + cursor.write_all(b"01234567").unwrap(); + assert_eq!(cursor.stream_position().unwrap(), 8); + cursor.write_all(b"890123").unwrap(); + assert_eq!(cursor.stream_position().unwrap(), 14); + cursor.write_all(b"456").unwrap(); + assert_eq!(cursor.stream_position().unwrap(), 17); + cursor.write_all(b"78901234567").unwrap(); + assert_eq!(cursor.stream_position().unwrap(), 28); + cursor.write_all(b"89").unwrap(); + assert_eq!(cursor.stream_position().unwrap(), 30); + assert!(cursor.write_all(b"0").is_err()); + + assert_eq!(cursor.seek(io::SeekFrom::Start(5)).unwrap(), 5); + assert_eq!(cursor.stream_position().unwrap(), 5); + cursor.write_all(b"A").unwrap(); + + assert_eq!(cursor.seek(io::SeekFrom::End(5)).unwrap(), 25); + assert_eq!(cursor.stream_position().unwrap(), 25); + cursor.write_all(b"B").unwrap(); + + assert_eq!(cursor.seek(io::SeekFrom::Current(-1)).unwrap(), 25); + assert_eq!(cursor.stream_position().unwrap(), 25); + cursor.write_all(b"C").unwrap(); + + assert_eq!(cursor.seek(io::SeekFrom::Current(1)).unwrap(), 27); + assert_eq!(cursor.stream_position().unwrap(), 27); + cursor.write_all(b"D").unwrap(); + } + + let mut cursor = buffer.as_buffer_cursor_ref_readable(); + let mut data = [0; 30]; + + assert_eq!(cursor.stream_position().unwrap(), 0); + cursor.read_exact(&mut data[0..7]).unwrap(); + assert_eq!(cursor.stream_position().unwrap(), 7); + assert_eq!(&data[0..7], b"01234A6"); + cursor.read_exact(&mut data[0..5]).unwrap(); + assert_eq!(cursor.stream_position().unwrap(), 12); + assert_eq!(&data[0..5], b"78901"); + cursor.read_exact(&mut data[0..10]).unwrap(); + assert_eq!(cursor.stream_position().unwrap(), 22); + assert_eq!(&data[0..10], b"2345678901"); + cursor.read_exact(&mut data[0..8]).unwrap(); + assert_eq!(cursor.stream_position().unwrap(), 30); + assert_eq!(&data[0..8], b"234C6D89"); + assert!(cursor.read_exact(&mut data[0..1]).is_err()); + + assert_eq!(cursor.seek(io::SeekFrom::Start(5)).unwrap(), 5); + assert_eq!(cursor.stream_position().unwrap(), 5); + cursor.read_exact(&mut data[0..1]).unwrap(); + assert_eq!(&data[0..1], b"A"); + + assert_eq!(cursor.seek(io::SeekFrom::End(5)).unwrap(), 25); + assert_eq!(cursor.stream_position().unwrap(), 25); + cursor.read_exact(&mut data[0..1]).unwrap(); + assert_eq!(&data[0..1], b"C"); + + assert_eq!(cursor.seek(io::SeekFrom::Current(-1)).unwrap(), 25); + assert_eq!(cursor.stream_position().unwrap(), 25); + cursor.read_exact(&mut data[0..1]).unwrap(); + assert_eq!(&data[0..1], b"C"); + + assert_eq!(cursor.seek(io::SeekFrom::Current(1)).unwrap(), 27); + assert_eq!(cursor.stream_position().unwrap(), 27); + cursor.read_exact(&mut data[0..1]).unwrap(); + assert_eq!(&data[0..1], b"D"); + } }