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-rw-r--r--js/src/tests/non262/class/shell.js10
1 files changed, 10 insertions, 0 deletions
diff --git a/js/src/tests/non262/class/shell.js b/js/src/tests/non262/class/shell.js
new file mode 100644
index 0000000000..1169b2c5f4
--- /dev/null
+++ b/js/src/tests/non262/class/shell.js
@@ -0,0 +1,10 @@
+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");
+}