[BUGFIX beta] Adding test for #18211

(cherry picked from commit a3858d3)

Author: GCheung55

packages/@ember/-internals/glimmer/tests/integration/input-test.js

@@ -201,6 +201,26 @@ moduleFor(
       this.assertValue('hola', 'Value is used');
     }
 
+    ['@test GH18211 input checked attribute, without a value, works with the action helper']() {
+      this.render(`<input type="checkbox" checked {{action "someAction"}}>`, { actions: { someAction() {} } });
+      this.assertPropertyHasValue('checked', true);
+    }
+
+    ['@test GH18211 input checked attribute, with a value, works with the action helper']() {
+      this.render(`<input type="checkbox" checked={{true}} {{action "someAction"}}>`, { actions: { someAction() {} } });
+      this.assertPropertyHasValue('checked', true);
+    }
+    
+    ['@test GH18211 input checked attribute, without a value, works with attributes with values']() {
+      this.render(`<input type="checkbox" checked click={{action "someAction"}}>`, { actions: { someAction() {} } });
+      this.assertPropertyHasValue('checked', true);
+    }
+
+    ['@test GH18211 input checked attribute, without a value, works with event attributes']() {
+      this.render(`<input type="checkbox" checked onclick={{action "someAction"}}>`, { actions: { someAction() {} } });
+      this.assertPropertyHasValue('checked', true);
+    }
+
     // private helpers and assertions
     setDOMValue(value) {
       this.inputElement().value = value;