From 57c529758e8208648ac2bb62e2d2eb9a34dc1fd0 Mon Sep 17 00:00:00 2001
From: Daisuke Baba <baba.daisuke@gmail.com>
Date: Thu, 19 Jan 2017 17:19:41 +0900
Subject: [PATCH] Add an edge case test

---
 test/red/runtime/nodes/registry/loader_spec.js | 18 ++++++++++++++++++
 1 file changed, 18 insertions(+)

diff --git a/test/red/runtime/nodes/registry/loader_spec.js b/test/red/runtime/nodes/registry/loader_spec.js
index c3df70bd5..b7f32a2de 100644
--- a/test/red/runtime/nodes/registry/loader_spec.js
+++ b/test/red/runtime/nodes/registry/loader_spec.js
@@ -585,6 +585,24 @@ describe("red/nodes/registry/loader",function() {
             loader.getNodeHelp(node,"fr").should.eql("bar");
             fs.readFileSync.calledTwice.should.be.true();
         });
+        it("fails to load en-US help content", function() {
+            stubs.push(sinon.stub(fs,"readFileSync", function(path) {
+                throw new Error("not found");
+            }));
+            var node = {
+                template: "/tmp/node/directory/file.html",
+                help:{}
+            };
+            delete node.help['en-US'];
+
+            should.not.exist(loader.getNodeHelp(node,"en-US"));
+            should.not.exist(node.help['en-US']);
+            fs.readFileSync.calledTwice.should.be.true();
+            fs.readFileSync.firstCall.args[0].should.eql(path.normalize("/tmp/node/directory/locales/en-US/file.html"));
+            fs.readFileSync.lastCall.args[0].should.eql(path.normalize("/tmp/node/directory/locales/en/file.html"));
+            should.not.exist(loader.getNodeHelp(node,"en-US"));
+            fs.readFileSync.callCount.should.eql(4);
+        });
 
     });
 });