Fix AroundBlockScan

Previously we were accidentally not using the persisted @before_index and instead using the "original" before index. This commit fixes that problem and adds a test for the behavior.

lib/dead_end/around_block_scan.rb

@@ -193,6 +193,10 @@ def after_index
       @code_lines[0...@orig_before_index] || []
     end
 
+    private def before_lines
+      now = @code_lines[0...before_index] || []
+    end
+
     private def after_lines
       @code_lines[after_index.next..-1] || []
     end

spec/integration/dead_end_spec.rb

@@ -29,7 +29,6 @@ module DeadEnd
              6  class SyntaxTree < Ripper
            170    def self.parse(source)
            174    end
-           176    private
         ❯  754    def on_args_add(arguments, argument)
         ❯  776    class ArgsAddBlock
         ❯  810    end
@@ -119,7 +118,6 @@ module DeadEnd
            7      REQUIRED_BY = {}
            9      attr_reader   :name
           10      attr_writer   :cost
-          11      attr_accessor :parent
         ❯ 13      def initialize(name)
         ❯ 18      def self.reset!
         ❯ 25      end

spec/unit/capture_code_context_spec.rb

@@ -4,6 +4,35 @@
 
 module DeadEnd
   RSpec.describe CaptureCodeContext do
+    it "capture_before_after_kws" do
+      source = <<~'EOM'
+        def sit
+        end
+
+        def bark
+
+        def eat
+        end
+      EOM
+
+      code_lines = CodeLine.from_source(source)
+
+      block = CodeBlock.new(lines: code_lines[0])
+
+      display = CaptureCodeContext.new(
+        blocks: [block],
+        code_lines: code_lines
+      )
+      lines = display.call
+      expect(lines.join).to eq(<<~EOM)
+        def sit
+        end
+        def bark
+        def eat
+        end
+      EOM
+    end
+
     it "handles ambiguous end" do
       source = <<~'EOM'
         def call          # 1
@@ -94,7 +123,6 @@ def call
       expect(lines.join).to eq(<<~EOM)
         class Rexe
           VERSION = '1.5.1'
-          PROJECT_URL = 'https://github.com/keithrbennett/rexe'
           class Lookups
             def format_requires
           end