Allow messages to be passed through for "should.become"

lib/chai-as-promised.js

@@ -233,8 +233,8 @@
             doNotify(getBasePromise(this), done);
         });
 
-        method("become", function (value) {
-            return this.eventually.deep.equal(value);
+        method("become", function (value, message) {
+            return this.eventually.deep.equal(value, message);
         });
 
         ////////

test/custom-messages.coffee

@@ -0,0 +1,30 @@
+"use strict"
+
+describe "Custom messages", =>
+    promise = null
+    message = "He told me enough! He told me you killed him!"
+
+    beforeEach =>
+        promise = fulfilledPromise(42)
+        return undefined
+
+    describe "should pass through for .become(value, message) for 42", =>
+        shouldPass => promise.should.become(42, message)
+    describe "should pass through for .become(value, message) for 52", =>
+        shouldFail
+            op: => promise.should.become(52, message)
+            message: message
+
+    describe "should pass through for .not.become(42, message)", =>
+        shouldFail
+            op: => promise.should.not.become(42, message)
+            message: message
+    describe "should pass through for .not.become(52, message)", =>
+        shouldPass => promise.should.not.become(52, message)
+
+    describe "should pass through for .eventually.equal(42)", (done) =>
+        shouldPass => promise.should.eventually.equal(42, message)
+    describe "should pass through for .not.eventually.equal(42)", (done) =>
+        shouldFail
+            op: => promise.should.not.eventually.equal(42, message)
+            message: message