spec/unit/mutant/mutator/node_spec.rb in mutant-0.8.10 vs spec/unit/mutant/mutator/node_spec.rb in mutant-0.8.11

@@ -1,12 +1,45 @@
-RSpec.describe Mutant::Mutator::Node do
-  Mutant::Meta::Example::ALL.each do |example|
-    context "on #{example.node.type.inspect}" do
-      it 'generates the correct mutations' do
+Mutant::Meta::Example::ALL.each.group_by(&:node_type).each do |type, examples|
+  RSpec.describe Mutant::Mutator::REGISTRY.lookup(type) do
+    toplevel_nodes = examples.map { |example| example.node.type }.uniq
+
+    it "generates the correct mutations on #{toplevel_nodes} toplevel examples" do
+      examples.each do |example|
         verification = example.verification
         unless verification.success?
           fail verification.error_report
         end
       end
+    end
+  end
+end
+
+RSpec.describe Mutant::Mutator::Node do
+  describe 'internal DSL' do
+    let(:klass) do
+      Class.new(described_class) do
+        children(:left, :right)
+
+        def dispatch
+          left
+          emit_left(s(:nil))
+          emit_right_mutations do |node|
+            node.eql?(s(:nil))
+          end
+        end
+      end
+    end
+
+    def apply
+      klass.call(s(:and, s(:true), s(:true)))
+    end
+
+    specify do
+      expect(apply).to eql(
+        [
+          s(:and, s(:nil), s(:true)),
+          s(:and, s(:true), s(:nil))
+        ].to_set
+      )
     end
   end
 end