From 9e0bc2514217748ef08b644be91cb81436e0114c Mon Sep 17 00:00:00 2001 From: Casper Beyer Date: Tue, 7 Jul 2020 12:49:04 +0800 Subject: test(std/wasi): add std file read and write tests (#6671) --- std/wasi/testdata/std_fs_file_read.rs | 16 ++++++++++++++++ 1 file changed, 16 insertions(+) create mode 100644 std/wasi/testdata/std_fs_file_read.rs (limited to 'std/wasi/testdata/std_fs_file_read.rs') diff --git a/std/wasi/testdata/std_fs_file_read.rs b/std/wasi/testdata/std_fs_file_read.rs new file mode 100644 index 000000000..332e008f1 --- /dev/null +++ b/std/wasi/testdata/std_fs_file_read.rs @@ -0,0 +1,16 @@ +// { "preopens": { "/fixture": "fixture" } } + +use std::io::Read; + +fn main() { + let mut file = std::fs::File::open("/fixture/file").unwrap(); + let mut buffer = [0; 2]; + + assert_eq!(file.read(&mut buffer).unwrap(), 2); + assert_eq!(&buffer, b"fi"); + + assert_eq!(file.read(&mut buffer).unwrap(), 2); + assert_eq!(&buffer, b"le"); + + assert_eq!(file.read(&mut buffer).unwrap(), 1); +} -- cgit v1.2.3