#3180. Add tests checking name value

LibTest/js_interop/JSExport/jsExport_A03_t03.dart

@@ -0,0 +1,59 @@
+// Copyright (c) 2025, the Dart project authors.  Please see the AUTHORS file
+// for details. All rights reserved. Use of this source code is governed by a
+// BSD-style license that can be found in the LICENSE file.
+
+/// @assertion By default, the property will have the same name as the
+/// corresponding instance member. You can change the property name of a member
+/// in the JS object by providing a `name` in the `@JSExport` annotation on the
+/// member.
+///
+/// @description Checks that `name` value is trimmed.
+/// @author sgrekhov22@gmail.com
+/// @issue 61096
+
+import 'dart:js_interop';
+import 'dart:js_interop_unsafe';
+import '../../../Utils/expect.dart';
+import '../js_utils.dart';
+
+String log = "";
+
+class C {
+  @JSExport(" variable ")
+  int annotatedVariable = 42;
+  @JSExport(" method " )
+  String annotatedMethod(String v) => "method($v);";
+  @JSExport(" getter ")
+  String get annotatedGetter => "Some getter";
+  @JSExport(" setter ")
+  void set annotatedSetter(bool value) {
+    log = "setter($value);";
+  }
+}
+
+void main() {
+  var c = C();
+  var jsC = createJSInteropWrapper<C>(c);
+  globalContext["jsC"] = jsC;
+  eval(r'''
+    globalThis.v1 = globalThis.jsC.variable;
+    globalThis.v2 = globalThis.jsC.method('x');
+    globalThis.v3 = globalThis.jsC.getter;
+    globalThis.jsC.setter = false;
+
+    globalThis.v4 = globalThis.jsC.annotatedVariable;
+    globalThis.v5 = globalThis.jsC.annotatedMethod;
+    globalThis.v6 = globalThis.jsC.annotatedGetter;
+  ''');
+  Expect.equals(42, (globalContext["v1"] as JSNumber).toDartInt);
+  Expect.equals("method(x);", (globalContext["v2"] as JSString).toDart);
+  Expect.equals("Some getter", (globalContext["v3"] as JSString).toDart);
+  Expect.equals("setter(false);", log);
+
+  log = "";
+  eval("globalThis.jsC.annotatedSetter = false;");
+  Expect.isNull(globalContext["v4"]);
+  Expect.isNull(globalContext["v5"]);
+  Expect.isNull(globalContext["v6"]);
+  Expect.equals("", log);
+}

LibTest/js_interop/JSExport/jsExport_A03_t04.dart

@@ -0,0 +1,46 @@
+// Copyright (c) 2025, the Dart project authors.  Please see the AUTHORS file
+// for details. All rights reserved. Use of this source code is governed by a
+// BSD-style license that can be found in the LICENSE file.
+
+/// @assertion By default, the property will have the same name as the
+/// corresponding instance member. You can change the property name of a member
+/// in the JS object by providing a `name` in the `@JSExport` annotation on the
+/// member.
+///
+/// @description Checks that it is a compile-time error if `name` contains any
+/// whitespaces.
+/// @author sgrekhov22@gmail.com
+/// @issue 61096
+
+import 'dart:js_interop';
+
+class C {
+  @JSExport("variable 2")
+//           ^^^^^^^^^^
+// [analyzer] unspecified
+// [web] unspecified
+  int variable = 42;
+
+  @JSExport("method\n2")
+//           ^^^^^^^^^^
+// [analyzer] unspecified
+// [web] unspecified
+  String method(String v) => "method($v);";
+
+  @JSExport("getter\t2")
+//           ^^^^^^^^^^
+// [analyzer] unspecified
+// [web] unspecified
+  String get getter => "Some getter";
+
+  @JSExport("setter\r2")
+//           ^^^^^^^^^^
+// [analyzer] unspecified
+// [web] unspecified
+  void set setter(bool value) {
+  }
+}
+
+void main() {
+  print(C);
+}