From 9ecc27d6fcf88ff95dc4f51e9008996120795a20 Mon Sep 17 00:00:00 2001
From: Joel Dice <joel.dice@akamai.com>
Date: Tue, 15 Sep 2026 12:02:52 -0600
Subject: [PATCH] update `tests/component-model` submodule and fix test

This fixes the test failure described in
https://github.com/WebAssembly/component-model/pull/721, where a zero-length
write following a cancelled non-zero-length write should return `BLOCKED` but
was instead returning `COMPLETED`.
---
 crates/test-util/src/wast.rs                               | 7 -------
 .../runtime/component/concurrent/futures_and_streams.rs    | 3 ++-
 tests/component-model                                      | 2 +-
 3 files changed, 3 insertions(+), 9 deletions(-)

diff --git a/crates/test-util/src/wast.rs b/crates/test-util/src/wast.rs
index ba2e18a6f923..cf9186bb4f90 100644
--- a/crates/test-util/src/wast.rs
+++ b/crates/test-util/src/wast.rs
@@ -525,13 +525,6 @@ impl WastTest {
             return true;
         }
 
-        // Waiting for WebAssembly/component-model#716 to land
-        if self.path.ends_with("async/cancellable.wast")
-            || self.path.ends_with("binary/binary.wast")
-        {
-            return true;
-        }
-
         // Some tests are known to fail with the pooling allocator
         if config.pooling {
             // allocates too much memory for the pooling configuration here
diff --git a/crates/wasmtime/src/runtime/component/concurrent/futures_and_streams.rs b/crates/wasmtime/src/runtime/component/concurrent/futures_and_streams.rs
index a79a3fe64698..9c5c4a807172 100644
--- a/crates/wasmtime/src/runtime/component/concurrent/futures_and_streams.rs
+++ b/crates/wasmtime/src/runtime/component/concurrent/futures_and_streams.rs
@@ -3592,6 +3592,7 @@ impl Instance {
                 // read).
                 // ```
 
+                let write_count = count;
                 let write_complete = count == 0 || read_count > 0;
                 let read_complete = count > 0;
                 let read_buffer_remaining = count < read_count;
@@ -3645,7 +3646,7 @@ impl Instance {
                 // zero-length rendezvous case this specifically won't execute
                 // the `read_complete` logic above, which is intentional, as the
                 // reader remains blocked.
-                if read_buffer_remaining || (count == 0 && read_count == 0) {
+                if read_buffer_remaining || (write_count == 0 && read_count == 0) {
                     let transmit = concurrent_state.get_mut(transmit_id)?;
                     transmit.read = ReadState::GuestReady {
                         ty: read_ty,
diff --git a/tests/component-model b/tests/component-model
index 7c676115e93c..531ee4b26a8e 160000
--- a/tests/component-model
+++ b/tests/component-model
@@ -1 +1 @@
-Subproject commit 7c676115e93cd7d54c1732d95c54c6a3de7c5ae0
+Subproject commit 531ee4b26a8ec78276603a24113b418df6e3e44c