Spec out the CucumberFailure.

spec/ci/reporter/cucumber_spec.rb

@@ -3,8 +3,53 @@
 # software license details.
 
 require File.dirname(__FILE__) + "/../../spec_helper.rb"
-require 'stringio'
+require 'ci/reporter/cucumber'
 
 describe "The Cucumber reporter" do
-  it "should work"
+  describe CI::Reporter::CucumberFailure do
+    before(:each) do
+      @klass = mock("class")
+      @klass.stub!(:name).and_return("Exception name")
+
+      @exception = mock("exception")
+      @exception.stub!(:class).and_return(@klass)
+      @exception.stub!(:message).and_return("Exception message")
+      @exception.stub!(:backtrace).and_return(["First line", "Second line"])
+
+      @step = mock("step")
+      @step.stub!(:exception).and_return(@exception)
+
+      @cucumber_failure = CI::Reporter::CucumberFailure.new(@step)
+    end
+
+    it "should always return true for failure?" do
+      @cucumber_failure.should be_failure
+    end
+
+    it "should always return false for error?" do
+      @cucumber_failure.should_not be_error
+    end
+
+    it "should propagate the name as the underlying exception's class name" do
+      @step.should_receive(:exception)
+      @exception.should_receive(:class)
+      @klass.should_receive(:name)
+
+      @cucumber_failure.name.should == "Exception name"
+    end
+
+    it "should propagate the message as the underlying exception's message" do
+      @step.should_receive(:exception)
+      @exception.should_receive(:message)
+
+      @cucumber_failure.message.should == "Exception message"
+    end
+
+    it "should propagate and format the exception's backtrace" do
+      @step.should_receive(:exception)
+      @exception.should_receive(:backtrace)
+
+      @cucumber_failure.location.should == "First line\nSecond line"
+    end
+  end
 end