Move case statements spec to correct location

spec/unit/mutant/mutator/each_spec.rb

@@ -5,32 +5,6 @@
 require 'spec_helper'
 
 describe Mutant::Mutator, '.each' do
-  context 'case statements' do
-    let(:source) { 'case self.condition; when true; true; when false; false; else raise; end' }
-
-    let(:mutations) do
-      mutations = []
-
-      # Delete each when once
-      mutations << 'case self.condition; when true; true; else raise; end'
-      mutations << 'case self.condition; when false; false; else raise; end'
-
-      # Mutate receiver
-      mutations << 'case condition; when true; true; when false; false; else raise; end'
-
-      # Remove else branch
-      mutations << 'case self.condition; when true; true; when false; false; end'
-
-      # Mutate when branch bodies
-      mutations << 'case self.condition; when true; nil;   when false; false; else raise; end'
-      mutations << 'case self.condition; when true; false; when false; false; else raise; end'
-      mutations << 'case self.condition; when true; true;  when false; nil;   else raise; end'
-      mutations << 'case self.condition; when true; true;  when false; true;  else raise; end'
-    end
-
-    it_should_behave_like 'a mutator'
-  end
-
   pending 'interpolated string literal (DynamicString)' do
     let(:source) { '"foo#{1}bar"' }
 

spec/unit/mutant/mutator/receiver_case/mutation_spec.rb

@@ -0,0 +1,27 @@
+require 'spec_helper'
+
+describe Mutant::Mutator::ReceiverCase do
+  let(:source) { 'case self.condition; when true; true; when false; false; else raise; end' }
+
+  let(:mutations) do
+    mutations = []
+
+    # Delete each when once
+    mutations << 'case self.condition; when true; true; else raise; end'
+    mutations << 'case self.condition; when false; false; else raise; end'
+
+    # Mutate receiver
+    mutations << 'case condition; when true; true; when false; false; else raise; end'
+
+    # Remove else branch
+    mutations << 'case self.condition; when true; true; when false; false; end'
+
+    # Mutate when branch bodies
+    mutations << 'case self.condition; when true; nil;   when false; false; else raise; end'
+    mutations << 'case self.condition; when true; false; when false; false; else raise; end'
+    mutations << 'case self.condition; when true; true;  when false; nil;   else raise; end'
+    mutations << 'case self.condition; when true; true;  when false; true;  else raise; end'
+  end
+
+  it_should_behave_like 'a mutator'
+end