fix(graphics): add rect to decoder_reset test for region validation

The merged progressive primitives PR (#1196) added validation that
a ProgressiveRegion must contain at least one rectangle. The test
used an empty rects vec which now fails decoding.

Author: lamco-office

crates/ironrdp-graphics/src/progressive.rs

@@ -1262,14 +1262,20 @@ mod tests {
         let mut decoder = ProgressiveDecoder::new();
 
         // Decode a minimal valid stream to create a context
+        use ironrdp_pdu::codecs::rfx::RfxRectangle;
         use ironrdp_pdu::codecs::rfx::progressive::{
             ProgressiveBlock, ProgressiveContextPdu, ProgressiveFrameBeginPdu, ProgressiveFrameEndPdu,
             ProgressiveRegion, ProgressiveSyncPdu, encode_progressive_stream,
         };
 
         let region = ProgressiveRegion {
             tile_size: 0x40,
-            rects: vec![],
+            rects: vec![RfxRectangle {
+                x: 0,
+                y: 0,
+                width: 64,
+                height: 64,
+            }],
             quant_vals: vec![],
             quant_prog_vals: vec![],
             flags: 0,

crates/ironrdp-pdu/src/codecs/rfx/progressive.rs

@@ -10,12 +10,13 @@
 
 use core::iter;
 
-use super::RfxRectangle;
 use ironrdp_core::{
     Decode, DecodeResult, Encode, EncodeResult, ReadCursor, WriteCursor, cast_length, ensure_fixed_part_size,
     ensure_size, invalid_field_err,
 };
 
+use super::RfxRectangle;
+
 // Wire constants
 const SYNC_MAGIC: u32 = 0xCACCACCA;
 const SYNC_VERSION: u16 = 0x0100;