[ffi] test zero termination of Utf8 string (dart-archive/ffi#147)

dcharkes · web-flow · commit 86d2425caf5c · 2023-04-03T09:31:29.000+02:00
diff --git a/pkgs/ffi/test/utf8_test.dart b/pkgs/ffi/test/utf8_test.dart
@@ -116,4 +116,12 @@ void main() {
     }
     fail('Expected an error.');
   });
+
+  test('zero terminated', () {
+    final string = 'Hello';
+    final utf8Pointer = string.toNativeUtf8();
+    final charPointer = utf8Pointer.cast<Char>();
+    expect(charPointer[utf8Pointer.length], 0);
+    calloc.free(utf8Pointer);
+  });
 }

Original file line number	Diff line number	Diff line change
`@@ -116,4 +116,12 @@ void main() {`
`116`	`116`	`}`
`117`	`117`	`fail('Expected an error.');`
`118`	`118`	`});`
	`119`	`+`
	`120`	`+ test('zero terminated', () {`
	`121`	`+ final string = 'Hello';`
	`122`	`+ final utf8Pointer = string.toNativeUtf8();`
	`123`	`+ final charPointer = utf8Pointer.cast<Char>();`
	`124`	`+ expect(charPointer[utf8Pointer.length], 0);`
	`125`	`+ calloc.free(utf8Pointer);`
	`126`	`+ });`
`119`	`127`	`}`