1 files changed, 13 insertions, 0 deletions
diff --git a/testing/web-platform/tests/webnn/validation_tests/cast.https.any.js b/testing/web-platform/tests/webnn/validation_tests/cast.https.any.js
new file mode 100644
index 0000000000..f616203a88
--- /dev/null
+++ b/testing/web-platform/tests/webnn/validation_tests/cast.https.any.js
@@ -0,0 +1,13 @@
+// META: title=validation tests for WebNN API cast operation
+// META: global=window,dedicatedworker
+// META: script=../resources/utils_validation.js
+
+'use strict';
+
+multi_builder_test(async (t, builder, otherBuilder) => {
+  const inputFromOtherBuilder =
+      otherBuilder.input('input', {dataType: 'int32', dimensions: [2, 2]});
+
+  assert_throws_js(
+      TypeError, () => builder.cast(inputFromOtherBuilder, 'int64'));
+}, '[cast] throw if input is from another builder');