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-rw-r--r--js/xpconnect/tests/unit/envChain.jsm20
1 files changed, 20 insertions, 0 deletions
diff --git a/js/xpconnect/tests/unit/envChain.jsm b/js/xpconnect/tests/unit/envChain.jsm
new file mode 100644
index 0000000000..c60b032fcc
--- /dev/null
+++ b/js/xpconnect/tests/unit/envChain.jsm
@@ -0,0 +1,20 @@
+var qualified = 10;
+// NOTE: JSM cannot have unqualified name.
+let lexical = 30;
+this.prop = 40;
+
+const funcs = Cu.getJSTestingFunctions();
+const envs = [];
+let env = funcs.getInnerMostEnvironmentObject();
+while (env) {
+ envs.push({
+ type: funcs.getEnvironmentObjectType(env) || "*BackstagePass*",
+ qualified: !!Object.getOwnPropertyDescriptor(env, "qualified"),
+ prop: !!Object.getOwnPropertyDescriptor(env, "prop"),
+ lexical: !!Object.getOwnPropertyDescriptor(env, "lexical"),
+ });
+
+ env = funcs.getEnclosingEnvironmentObject(env);
+}
+
+const EXPORTED_SYMBOLS = ["envs"];