1 files changed, 33 insertions, 0 deletions
diff --git a/js/src/jit-test/tests/wasm/comments.js b/js/src/jit-test/tests/wasm/comments.js
new file mode 100644
index 000000000..5bdc77b3c
--- /dev/null
+++ b/js/src/jit-test/tests/wasm/comments.js
@@ -0,0 +1,33 @@
+load(libdir + "wasm.js");
+
+// sanity check
+assertErrorMessage(() => wasmEvalText(''), SyntaxError, /parsing wasm text/);
+
+// single line comment
+var o = wasmEvalText('(module (func)) ;; end');
+var o = wasmEvalText('(module (func)) ;; end\n');
+var o = wasmEvalText('(module (func))\n;; end');
+var o = wasmEvalText('(module (func))\n;; end');
+var o = wasmEvalText(';;start\n(module (func))');
+var o = wasmEvalText('(module (func ;; middle\n))');
+var o = wasmEvalText('(module (func) ;; middle\n (export "a" 0))').exports;
+assertEq(Object.getOwnPropertyNames(o)[0], "a");
+
+// multi-line comments
+var o = wasmEvalText('(module (func))(; end ;)');
+var o = wasmEvalText('(module (func)) (; end\nmulti;)\n');
+var o = wasmEvalText('(module (func))\n(;;)');
+var o = wasmEvalText('(;start;)(module (func))');
+var o = wasmEvalText('(;start;)\n(module (func))');
+var o = wasmEvalText('(module (func (; middle\n multi\n;)))');
+var o = wasmEvalText('(module (func)(;middle;)(export "a" 0))').exports;
+assertEq(Object.getOwnPropertyNames(o)[0], "a");
+
+// nested comments
+var o = wasmEvalText('(module (;nested(;comment;);)(func (;;;;)))');
+var o = wasmEvalText(';;;;;;;;;;\n(module ;;(;n \n(func (;\n;;;)))');
+
+assertErrorMessage(() => wasmEvalText(';; only comment'), SyntaxError, /parsing wasm text/);
+assertErrorMessage(() => wasmEvalText(';; only comment\n'), SyntaxError, /parsing wasm text/);
+assertErrorMessage(() => wasmEvalText('(; only comment ;)'), SyntaxError, /parsing wasm text/);
+assertErrorMessage(() => wasmEvalText(';; only comment\n'), SyntaxError, /parsing wasm text/);