spec/isomer/sources/yaml_spec.rb in isomer-0.0.1 vs spec/isomer/sources/yaml_spec.rb in isomer-0.1.0

@@ -1,8 +1,16 @@
 require 'spec_helper'
 
 describe Isomer::Sources::Yaml do
+  describe '.new' do
+    it 'blows up if the file parameter is missing' do
+      expect {
+        Isomer::Sources::Yaml.new(anything)
+      }.to raise_error(Isomer::Error, "YAML source requires the 'file' parameter")
+    end
+  end
+
   describe '#load' do
     it 'loads the YAML file configuration file' do
       File.stub(:exists?).and_return(true)
       YAML.should_receive(:load_file).with('/home/configuration.yml').and_return({'foo' => 'bar'})
 
@@ -10,20 +18,39 @@
       source.load
 
       source.configuration.should == {'foo' => 'bar'}
     end
 
-    it 'does not raise if the file does not exist' do
-      source = Isomer::Sources::Yaml.new(anything, file: '/home/configuration.yml')
-      expect { source.load }.to_not raise_error
+    context 'when the file does not exist' do
+      context 'when it is not required' do
+        it 'does not blow up' do
+          source = Isomer::Sources::Yaml.new(anything, file: '/home/configuration.yml')
+          expect { source.load }.to_not raise_error
+        end
+
+        it 'sets the configuration to an empty hash' do
+          source = Isomer::Sources::Yaml.new(anything, file: '/home/configuration.yml')
+          source.load
+          source.configuration.should == {}
+        end
+      end
+
+      context 'when it is required' do
+        it 'raises an error' do
+          source = Isomer::Sources::Yaml.new(anything, file: '/home/configuration.yml', required: true)
+          expect {
+            source.load
+          }.to raise_error(Isomer::Error, "Missing required configuration file '/home/configuration.yml'")
+        end
+      end
     end
 
     context 'with a base' do
       it 'returns the configuration under the base node' do
         File.stub(:exists?).and_return(true)
         YAML.stub(:load_file).and_return( 'production' => {'limit' => 100} )
 
-        source = Isomer::Sources::Yaml.new(anything, base: 'production')
+        source = Isomer::Sources::Yaml.new(anything, file: 'filish.yml', base: 'production')
         source.load
 
         source.configuration.should == {'limit' => 100}
       end
     end