Fix specs

spec/hamlit/engine_spec.rb

@@ -7,7 +7,7 @@ describe Hamlit::Engine do
       { buffer: buffer, generator: Temple::Generators::ArrayBuffer }
     end
 
-    it 'allows generator valid options' do
+    it 'accepts generator valid options' do
       expect(subject.call('')).to eq(
         "#{buffer} = []; ; #{buffer} = #{buffer}.join",
       )

spec/hamlit/script_compiler_spec.rb

@@ -1,10 +1,5 @@
 describe Hamlit::ScriptCompiler do
   describe '#call' do
-    def assert_compile(before, after)
-      result = described_class.new.call(before)
-      expect(result).to eq(after)
-    end
-
     it 'does not alter single-line script' do
       assert_compile(
         [:multi,