[Rust] Improve `FileAccessor`

- Add unit tests
- Expose read/write functionality
- Add some much needed documentation when passing to memory map

1 files changed, 22 insertions, 0 deletions

diff --git a/rust/tests/file_accessor.rs b/rust/tests/file_accessor.rs
new file mode 100644
index 00000000..ce79d277
--- /dev/null
+++ b/rust/tests/file_accessor.rs
@@ -0,0 +1,22 @@
+use binaryninja::file_accessor::FileAccessor;
+use std::io::Cursor;
+
+#[test]
+fn test_file_accessor() {
+    let mut mock_data = Cursor::new(vec![0u8; 100]);
+    let accessor = FileAccessor::new(&mut mock_data);
+    assert_eq!(
+        accessor.length(),
+        100,
+        "File accessor length does not match"
+    );
+    assert_eq!(
+        accessor.write(0x10, &[0xff]),
+        1,
+        "Failed to write to file accessor"
+    );
+    let read_value = accessor
+        .read(0x10, 1)
+        .expect("Failed to read from file accessor");
+    assert_eq!(read_value, &[0xff], "Read value does not match");
+}