add specs to ensure config always composes

Author: DannyBen

spec/bashly/config_spec.rb

@@ -18,8 +18,17 @@
 
   context "with a string argument" do
     let(:config) { "spec/fixtures/config.yml" }
+    
     it "treats the string as a path to YAML and loads it" do
-      expect(subject["loaded"]).to eq "yes indeed"      
+      expect(subject["loaded"]).to eq "yes indeed"
+    end
+
+    context "when the loaded YAML contains import directives" do
+      let(:config) { "spec/fixtures/import.yml" }
+
+      it "evaluates them" do
+        expect(subject["commands"].first['loaded']).to eq "yes indeed"
+      end
     end
   end
 

spec/fixtures/import.yml

@@ -0,0 +1,3 @@
+commands:
+  - import: spec/fixtures/config.yml
+