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-rw-r--r--js/src/jit-test/tests/ctypes/cast.js12
1 files changed, 12 insertions, 0 deletions
diff --git a/js/src/jit-test/tests/ctypes/cast.js b/js/src/jit-test/tests/ctypes/cast.js
new file mode 100644
index 0000000000..c483d3793f
--- /dev/null
+++ b/js/src/jit-test/tests/ctypes/cast.js
@@ -0,0 +1,12 @@
+load(libdir + 'asserts.js');
+
+function test() {
+ assertTypeErrorMessage(() => { ctypes.cast(ctypes.int32_t(0), ctypes.StructType("foo")); },
+ "target type foo has undefined size");
+
+ assertTypeErrorMessage(() => { ctypes.cast(ctypes.int32_t(0), ctypes.StructType("foo", [ { x: ctypes.int32_t }, { y: ctypes.int32_t } ])); },
+ "target type foo has larger size than source type ctypes.int32_t (8 > 4)");
+}
+
+if (typeof ctypes === "object")
+ test();