added tests

spec/lib/assessor_spec.rb

@@ -1,24 +1,59 @@
 require 'rails_helper'
 
 describe Assessor do
+  let(:assessor) { described_class.new(execution_environment: FactoryGirl.build(:ruby)) }
+
+  describe '#assess' do
+    let(:assess) { assessor.assess(stdout: stdout) }
+    let(:stdout) { "Finished in 0.1 seconds (files took 0.1 seconds to load)\n2 examples, 1 failure" }
+
+    context 'when an error occurs' do
+      before(:each) do
+        expect_any_instance_of(TestingFrameworkAdapter).to receive(:test_outcome).and_raise
+      end
+
+      it 'catches the error' do
+        expect { assess }.not_to raise_error
+      end
+
+      it 'returns a score of zero' do
+        expect(assess).to eq(score: 0)
+      end
+    end
+
+    context 'when no error occurs' do
+      after(:each) { assess }
+
+      it 'utilizes the testing framework adapter' do
+        expect(assessor.instance_variable_get(:@testing_framework_adapter)).to receive(:test_outcome)
+      end
+
+      it 'calculates the score' do
+        expect(assessor).to receive(:calculate_score)
+      end
+    end
+  end
+
   describe '#calculate_score' do
     let(:count) { 42 }
     let(:passed) { 17 }
     let(:test_outcome) { {count: count, passed: passed} }
 
-    context 'with a testing framework adapter' do
-      let(:assessor) { described_class.new(execution_environment: FactoryGirl.build(:ruby)) }
+    it 'returns the correct score' do
+      expect(assessor.send(:calculate_score, test_outcome)).to eq(passed.to_f / count.to_f)
+    end
+  end
 
-      it 'returns the correct score' do
-        expect(assessor.send(:calculate_score, test_outcome)).to eq(passed.to_f / count.to_f)
+  describe '#initialize' do
+    context 'with an execution environment with a testing framework adapter' do
+      it 'assigns the testing framework adapter' do
+        expect(assessor.instance_variable_get(:@testing_framework_adapter)).to be_an(RspecAdapter)
       end
     end
 
-    context 'without a testing framework adapter' do
-      let(:assessor) { described_class.new(execution_environment: FactoryGirl.build(:execution_environment)) }
-
+    context 'with an execution environment without a testing framework adapter' do
       it 'raises an error' do
-        expect { assessor.send(:calculate_score, test_outcome) }.to raise_error
+        expect { described_class.new(execution_environment: FactoryGirl.build(:ruby, testing_framework: nil)) }.to raise_error(Assessor::Error)
       end
     end
   end