From 52144e48cb2357d8c3914de4d28d567d6010b90f Mon Sep 17 00:00:00 2001
From: David Majda <david@majda.cz>
Date: Fri, 16 Jan 2015 15:45:54 +0100
Subject: [PATCH] Behavior specs cleanup: Improve label specs

---
 spec/behavior/generated-parser-behavior.spec.js | 17 +++++++++++++----
 1 file changed, 13 insertions(+), 4 deletions(-)

diff --git a/spec/behavior/generated-parser-behavior.spec.js b/spec/behavior/generated-parser-behavior.spec.js
index 10300ef..3d8e743 100644
--- a/spec/behavior/generated-parser-behavior.spec.js
+++ b/spec/behavior/generated-parser-behavior.spec.js
@@ -724,11 +724,20 @@ describe("generated parser behavior", function() {
     });
 
     describe("label", function() {
-      it("delegates to the expression", function() {
-        var parser = PEG.buildParser('start = a:"a"', options);
+      describe("when the expression matches", function() {
+        it("returns its match result", function() {
+          var parser = PEG.buildParser('start = a:"a"', options);
 
-        expect(parser).toParse("a", "a");
-        expect(parser).toFailToParse("b");
+          expect(parser).toParse("a", "a");
+        });
+      });
+
+      describe("when the expression doesn't match", function() {
+        it("reports match failure", function() {
+          var parser = PEG.buildParser('start = a:"a"', options);
+
+          expect(parser).toFailToParse("b");
+        });
       });
     });