Fix missing description error

CHANGELOG.md

@@ -1,5 +1,7 @@
 Unreleased
 
+* Fixed the error of the missing matcher description (https://github.com/krisleech/wisper-rspec/pull/32)
+
 1.1.0 (15/May/2018)
 
 Authors: Nikolai (nikolai-b), David Kennedy (TheTeaNerd)

lib/wisper/rspec/matchers.rb

@@ -55,6 +55,12 @@ def matches?(block)
           @event_recorder.broadcast?(@event, *@args)
         end
 
+        def description
+          msg = "broadcast #{@event} event"
+          msg += " with args: #{@args.inspect}" if @args.size > 0
+          msg
+        end
+
         def failure_message
           msg = "expected publisher to broadcast #{@event} event"
           msg += " with args: #{@args.inspect}" if @args.size > 0

spec/wisper/rspec/unit/broadcast_matcher_spec.rb

@@ -13,6 +13,30 @@
     end.new
   end
 
+  describe '#description' do
+    it 'has descriptive message' do
+      expect(matcher.description).to eq "broadcast #{event_name} event"
+    end
+  end
+
+  describe '#failure_message_when_negated' do
+    subject(:message) { matcher.failure_message_when_negated }
+
+    context 'when with args' do
+      let(:matcher) { described_class.new(event_name, 1) }
+
+      it 'has descriptive message' do
+        expect(message).to eq "expected publisher not to broadcast #{event_name} event with args: [1]"
+      end
+    end
+
+    context 'when without args' do
+      it 'has descriptive message' do
+        expect(message).to eq "expected publisher not to broadcast #{event_name} event"
+      end
+    end
+  end
+
   context 'matching event broadcast' do
     let(:block) do
       Proc.new do