Fix clearing error boundaries (#4041)

packages/core/tests/error_boundary.rs

@@ -1,6 +1,6 @@
 #![allow(non_snake_case)]
 
-use dioxus::prelude::*;
+use dioxus::{prelude::*, CapturedError};
 
 #[test]
 fn catches_panic() {
@@ -30,3 +30,50 @@ fn ThrowChild() -> Element {
 
     rsx! { div {} }
 }
+
+#[test]
+fn clear_error_boundary() {
+    static THREW_ERROR: std::sync::atomic::AtomicBool = std::sync::atomic::AtomicBool::new(false);
+
+    #[component]
+    fn App() -> Element {
+        rsx! {
+            AutoClearError {}
+        }
+    }
+
+    #[component]
+    pub fn ThrowsError() -> Element {
+        if THREW_ERROR.load(std::sync::atomic::Ordering::SeqCst) {
+            THREW_ERROR.store(true, std::sync::atomic::Ordering::SeqCst);
+            Err(CapturedError::from_display("This is an error").into())
+        } else {
+            rsx! {
+                "We should see this"
+            }
+        }
+    }
+
+    #[component]
+    pub fn AutoClearError() -> Element {
+        rsx! {
+            ErrorBoundary {
+                handle_error: |error: ErrorContext| {
+                    error.clear_errors();
+
+                    rsx! {
+                        "We cleared it"
+                    }
+                },
+
+                ThrowsError {}
+            }
+        }
+    }
+
+    let mut dom = VirtualDom::new(App);
+    dom.rebuild(&mut dioxus_core::NoOpMutations);
+    let out = dioxus_ssr::render(&dom);
+
+    assert_eq!(out, "We should see this");
+}