test(wasm-actor): cycle 71 — f32 ops, nested blocks, mixed guest response fuzz (314 tests)

Added 5 tests: same payload to echo+double verified, f32 store/load, 50 silent
actors clean shutdown, 5-deep nested blocks, property test mixed guest response
counts. No new bugs found.

Authored by Claude, lovingly guided by Zachery Aaron Shores-Chmielewski

crates/wasm-actor/tests/wasm_actor.rs

@@ -10362,3 +10362,144 @@ fn guest_xor_payload_with_key() {
     let resp = inbox.try_recv().expect("XOR response");
     assert_eq!(resp.0, vec![0xFF, 0x00, 0x55], "each byte XORed with 0xFF");
 }
+
+// ── Cycle 71 ─────────────────────────────────────────────────────────────────
+
+// Same payload sent to echo and double — both produce correct results
+#[test]
+fn same_payload_to_echo_and_double_verified() {
+    let engine = SharedEngine::new().unwrap();
+    let echo = WasmActorBuilder::new(engine.clone(), guest_wasm("echo")).build().unwrap();
+    let double = WasmActorBuilder::new(engine, guest_wasm("double")).build().unwrap();
+    let rt = Runtime::new(RuntimeConfig::default());
+    let inbox_e = rt.new_inbox::<ByteMessage>().unwrap();
+    let inbox_d = rt.new_inbox::<ByteMessage>().unwrap();
+    let e_addr = rt.spawn(echo).unwrap();
+    let d_addr = rt.spawn(double).unwrap();
+
+    let payload = b"shared-payload";
+    rt.send_to(e_addr, framed_msg(inbox_e.addr(), payload)).unwrap();
+    rt.send_to(d_addr, framed_msg(inbox_d.addr(), payload)).unwrap();
+    rt.tick();
+
+    let e_msgs: Vec<_> = std::iter::from_fn(|| inbox_e.try_recv().map(|m| m.0)).collect();
+    let d_msgs: Vec<_> = std::iter::from_fn(|| inbox_d.try_recv().map(|m| m.0)).collect();
+    assert_eq!(e_msgs.len(), 1);
+    assert_eq!(d_msgs.len(), 2);
+    assert_eq!(e_msgs[0], payload);
+    assert!(d_msgs.iter().all(|m| m == payload));
+}
+
+// Guest stores and reloads a f32 value
+#[test]
+fn guest_f32_store_and_load() {
+    let wat = r#"(module
+        (memory (export "memory") 1)
+        (func (export "alloc") (param $len i32) (result i32) i32.const 1024)
+        (func (export "handle") (param $ptr i32) (param $len i32)
+            ;; Store f32 at ptr, load it back, add 1.0, store again
+            (f32.store (local.get $ptr) (f32.const 3.14))
+            (f32.store (local.get $ptr)
+                (f32.add (f32.load (local.get $ptr)) (f32.const 1.0))
+            )
+        )
+    )"#;
+    let engine = SharedEngine::new().unwrap();
+    let actor = WasmActorBuilder::new(engine, wat::parse_str(wat).unwrap())
+        .build().unwrap();
+    let rt = Runtime::new(RuntimeConfig::default());
+    let addr = rt.spawn(actor).unwrap();
+    rt.send_to(addr, ByteMessage(vec![0u8; 4])).unwrap();
+    rt.tick();
+}
+
+// Spawn 50 silent actors, tick, stop all — clean shutdown
+#[test]
+fn fifty_silent_actors_clean_shutdown() {
+    let engine = SharedEngine::new().unwrap();
+    let rt = Runtime::new(RuntimeConfig::default());
+    let addrs: Vec<_> = (0..50)
+        .map(|_| {
+            let actor = WasmActorBuilder::new(engine.clone(), guest_wasm("silent"))
+                .build().unwrap();
+            rt.spawn(actor).unwrap()
+        })
+        .collect();
+
+    for addr in &addrs {
+        rt.send_to(*addr, ByteMessage(vec![0])).unwrap();
+    }
+    rt.tick();
+
+    for addr in &addrs {
+        rt.stop_actor(*addr);
+    }
+    rt.tick();
+    rt.tick();
+}
+
+// Guest with deeply nested blocks (5 levels)
+#[test]
+fn guest_deeply_nested_blocks() {
+    let wat = r#"(module
+        (memory (export "memory") 1)
+        (func (export "alloc") (param $len i32) (result i32) i32.const 1024)
+        (func (export "handle") (param $ptr i32) (param $len i32)
+            (block $b0
+                (block $b1
+                    (block $b2
+                        (block $b3
+                            (block $b4
+                                ;; Store nesting depth at ptr
+                                (i32.store (local.get $ptr) (i32.const 5))
+                            )
+                        )
+                    )
+                )
+            )
+        )
+    )"#;
+    let engine = SharedEngine::new().unwrap();
+    let actor = WasmActorBuilder::new(engine, wat::parse_str(wat).unwrap())
+        .build().unwrap();
+    let rt = Runtime::new(RuntimeConfig::default());
+    let addr = rt.spawn(actor).unwrap();
+    rt.send_to(addr, ByteMessage(vec![0u8; 4])).unwrap();
+    rt.tick();
+}
+
+// Property: mixed guest types always produce expected response counts
+proptest! {
+    #[test]
+    fn prop_mixed_guest_response_counts(
+        echo_count in 0usize..5,
+        double_count in 0usize..5,
+        silent_count in 0usize..5,
+    ) {
+        let engine = SharedEngine::new().unwrap();
+        let rt = Runtime::new(RuntimeConfig::default());
+        let inbox = rt.new_inbox::<ByteMessage>().unwrap();
+
+        for _ in 0..echo_count {
+            let actor = WasmActorBuilder::new(engine.clone(), guest_wasm("echo")).build().unwrap();
+            let addr = rt.spawn(actor).unwrap();
+            rt.send_to(addr, framed_msg(inbox.addr(), b"x")).unwrap();
+        }
+        for _ in 0..double_count {
+            let actor = WasmActorBuilder::new(engine.clone(), guest_wasm("double")).build().unwrap();
+            let addr = rt.spawn(actor).unwrap();
+            rt.send_to(addr, framed_msg(inbox.addr(), b"x")).unwrap();
+        }
+        for _ in 0..silent_count {
+            let actor = WasmActorBuilder::new(engine.clone(), guest_wasm("silent")).build().unwrap();
+            let addr = rt.spawn(actor).unwrap();
+            rt.send_to(addr, ByteMessage(b"x".to_vec())).unwrap();
+        }
+        rt.tick();
+
+        let msg_count = std::iter::from_fn(|| inbox.try_recv()).count();
+        let expected = echo_count + double_count * 2;
+        assert_eq!(msg_count, expected,
+            "echo({echo_count})+double({double_count}*2)+silent({silent_count}*0)={expected}, got {msg_count}");
+    }
+}