1 files changed, 28 insertions, 0 deletions
diff --git a/js/src/jit-test/tests/wasm/exceptions/stack.js b/js/src/jit-test/tests/wasm/exceptions/stack.js
new file mode 100644
index 0000000000..337ecd54b8
--- /dev/null
+++ b/js/src/jit-test/tests/wasm/exceptions/stack.js
@@ -0,0 +1,28 @@
+let tag = new WebAssembly.Tag({parameters: []});
+
+function construct(options) {
+	return new WebAssembly.Exception(tag, [], options);
+}
+function noStack(options) {
+	assertEq(construct(options).stack, undefined, 'no stack');
+}
+function hasStack(options) {
+	assertEq(typeof construct(options).stack === 'string', true, 'has stack');
+}
+
+// Test valid option constructors
+noStack(undefined);
+noStack(null);
+noStack({});
+noStack({traceStack: false});
+noStack({traceStack: 0});
+hasStack({traceStack: true});
+hasStack({traceStack: 1});
+
+// Test invalid option constructors
+assertErrorMessage(() => construct('not an object'), TypeError, /cannot be converted/);
+
+// Test that 'stack' is read-only
+let exception = construct({traceStack: true});
+exception.stack = 0;
+assertEq(typeof exception.stack === 'string', true, 'is read-only');