1 files changed, 16 insertions, 0 deletions
diff --git a/js/src/tests/ecma_6/Class/shell.js b/js/src/tests/ecma_6/Class/shell.js
new file mode 100644
index 000000000..7fb703b98
--- /dev/null
+++ b/js/src/tests/ecma_6/Class/shell.js
@@ -0,0 +1,16 @@
+// NOTE: This only turns on 1.8.5 in shell builds.  The browser requires the
+//       futzing in js/src/tests/browser.js (which only turns on 1.8, the most
+//       the browser supports).
+if (typeof version != 'undefined')
+  version(185);
+
+function assertThrownErrorContains(thunk, substr) {
+    try {
+        thunk();
+    } catch (e) {
+        if (e.message.indexOf(substr) !== -1)
+            return;
+        throw new Error("Expected error containing " + substr + ", got " + e);
+    }
+    throw new Error("Expected error containing " + substr + ", no exception thrown");
+}