1 files changed, 49 insertions, 0 deletions
diff --git a/js/src/gdb/tests/test-jsval.cpp b/js/src/gdb/tests/test-jsval.cpp
new file mode 100644
index 0000000000..3a89a76a83
--- /dev/null
+++ b/js/src/gdb/tests/test-jsval.cpp
@@ -0,0 +1,49 @@
+#include "gdb-tests.h"
+
+#include "js/GlobalObject.h"
+#include "js/String.h"
+#include "js/Symbol.h"
+#include "vm/BigIntType.h"
+
+FRAGMENT(jsval, simple) {
+  using namespace JS;
+
+  RootedValue fortytwo(cx, Int32Value(42));
+  RootedValue fortytwoD(cx, DoubleValue(42));
+  RootedValue negone(cx, Int32Value(-1));
+  RootedValue undefined(cx, UndefinedValue());
+  RootedValue null(cx, NullValue());
+  RootedValue js_true(cx, BooleanValue(true));
+  RootedValue js_false(cx, BooleanValue(false));
+  RootedValue elements_hole(cx, js::MagicValue(JS_ELEMENTS_HOLE));
+
+  RootedValue empty_string(cx);
+  empty_string.setString(JS_NewStringCopyZ(cx, ""));
+  RootedString hello(cx, JS_NewStringCopyZ(cx, "Hello!"));
+  RootedValue friendly_string(cx, StringValue(hello));
+  RootedValue symbol(cx, SymbolValue(GetSymbolFor(cx, hello)));
+  RootedValue bi(cx, BigIntValue(BigInt::zero(cx)));
+
+  RootedValue global(cx);
+  global.setObject(*CurrentGlobalOrNull(cx));
+
+  // Some interesting value that floating-point won't munge.
+  RootedValue onehundredthirtysevenonehundredtwentyeighths(
+      cx, DoubleValue(137.0 / 128.0));
+
+  breakpoint();
+
+  use(fortytwo);
+  use(fortytwoD);
+  use(negone);
+  use(undefined);
+  use(js_true);
+  use(js_false);
+  use(null);
+  use(elements_hole);
+  use(empty_string);
+  use(friendly_string);
+  use(symbol);
+  use(bi);
+  use(global);
+}