fixup! Add rspec

spec/nanoc/base/entities/configuration_spec.rb

@@ -1,10 +1,9 @@
 describe Nanoc::Int::Configuration do
-  let(:configuration) { described_class.new(hash) }
-
   let(:hash) { { foo: 'bar' } }
+  let(:config) { described_class.new(hash) }
 
   describe '#key?' do
-    subject { configuration.key?(key) }
+    subject { config.key?(key) }
 
     context 'non-existent key' do
       let(:key) { :donkey }
@@ -16,4 +15,35 @@
       it { is_expected.to be }
     end
   end
+
+  context 'with environments defined' do
+    let(:hash) { { foo: 'bar', environments: { test: { foo: 'test-bar' }, default: { foo: 'default-bar' } } } }
+    let(:config) { described_class.new(hash).with_environment(env) }
+
+    subject { config }
+
+    context 'with existing environment' do
+      let(:env) { :test }
+
+      it 'inherits options from given environment' do
+        expect(subject[:foo]).to eq('test-bar')
+      end
+    end
+
+    context 'with unknown environment' do
+      let(:env) { :wtf }
+
+      it 'does not inherits options from any environment' do
+        expect(subject[:foo]).to eq('bar')
+      end
+    end
+
+    context 'without given environment' do
+      let(:env) { nil }
+
+      it 'inherits options from default environment' do
+        expect(subject[:foo]).to eq('default-bar')
+      end
+    end
+  end
 end

spec/nanoc/base/repos/config_loader_spec.rb

@@ -52,6 +52,25 @@
         expect(subject[:parent_config_file]).to be_nil
       end
     end
+
+    context 'config file present and environment defined' do
+      before do
+        File.write('nanoc.yaml', YAML.dump({ foo: 'bar', environments: { test: { foo: 'test-bar' }, default: { foo: 'default-bar' } } }))
+      end
+
+      it 'returns the configuration' do
+        expect(subject).to be_a(Nanoc::Int::Configuration)
+      end
+
+      it 'has the test environment custom option' do
+        allow(ENV).to receive(:fetch).with('NANOC_ENVIRONMENT', :default).and_return('test')
+        expect(subject[:foo]).to eq('test-bar')
+      end
+
+      it 'has the default environment custom option' do
+        expect(subject[:foo]).to eq('default-bar')
+      end
+    end
   end
 
   describe '.cwd_is_nanoc_site? + .config_filename_for_cwd' do