fix tests for windows

core/lib.rs

@@ -1152,7 +1152,15 @@ impl Connection {
     ) -> Result<bool> {
         let pager = self.pager.borrow();
         let (page_ref, c) = pager.read_page_no_cache(page_idx as usize, frame_watermark, true)?;
-        pager.io.wait_for_completion(c)?;
+
+        match pager.io.wait_for_completion(c) {
+            Ok(()) => {}
+            // on windows, zero read will trigger UnexpectedEof
+            Err(LimboError::IOError(e)) if e.kind() == std::io::ErrorKind::UnexpectedEof => {
+                return Ok(false)
+            }
+            Err(err) => return Err(err),
+        }
 
         let content = page_ref.get_contents();
         // empty read - attempt to read absent page