2 files changed, 93 insertions, 89 deletions
diff --git a/tool/lib/test/unit.rb b/tool/lib/test/unit.rb
index 5e5b34f5b6..0d32abd18a 100644
--- a/tool/lib/test/unit.rb
+++ b/tool/lib/test/unit.rb
@@ -1450,9 +1450,8 @@ module Test
       def setup_options(opts, options)
         super
         opts.on_tail '--launchable-test-reports=PATH', String, 'Report test results in Launchable JSON format' do |path|
-          require 'json'
-          require 'uri'
-          options[:launchable_test_reports] = writer = JsonStreamWriter.new(path)
+          require_relative '../test/unit/launchable'
+          options[:launchable_test_reports] = writer = Launchable::JsonStreamWriter.new(path)
           writer.write_array('testCases')
           main_pid = Process.pid
           at_exit {
@@ -1469,92 +1468,6 @@ module Test
           component.to_s.gsub('%', '%25').gsub('=', '%3D').gsub('#', '%23').gsub('&', '%26')
         end
       end
-
-      ##
-      # JsonStreamWriter writes a JSON file using a stream.
-      # By utilizing a stream, we can minimize memory usage, especially for large files.
-      class JsonStreamWriter
-        def initialize(path)
-          @file = File.open(path, "w")
-          @file.write("{")
-          @indent_level = 0
-          @is_first_key_val = true
-          @is_first_obj = true
-          write_new_line
-        end
-
-        def write_object obj
-          if @is_first_obj
-            @is_first_obj = false
-          else
-            write_comma
-            write_new_line
-          end
-          @indent_level += 1
-          @file.write(to_json_str(obj))
-          @indent_level -= 1
-          @is_first_key_val = true
-          # Occasionally, invalid JSON will be created as shown below, especially when `--repeat-count` is specified.
-          # {
-          #   "testPath": "file=test%2Ftest_timeout.rb&class=TestTimeout&testcase=test_allows_zero_seconds",
-          #   "status": "TEST_PASSED",
-          #   "duration": 2.7e-05,
-          #   "createdAt": "2024-02-09 12:21:07 +0000",
-          #   "stderr": null,
-          #   "stdout": null
-          # }: null <- here
-          # },
-          # To prevent this, IO#flush is called here.
-          @file.flush
-        end
-
-        def write_array(key)
-          @indent_level += 1
-          @file.write(to_json_str(key))
-          write_colon
-          @file.write(" ", "[")
-          write_new_line
-        end
-
-        def close
-          return if @file.closed?
-          close_array
-          @indent_level -= 1
-          write_new_line
-          @file.write("}", "\n")
-          @file.flush
-          @file.close
-        end
-
-        private
-        def to_json_str(obj)
-          json = JSON.pretty_generate(obj)
-          json.gsub(/^/, ' ' * (2 * @indent_level))
-        end
-
-        def write_indent
-          @file.write(" " * 2 * @indent_level)
-        end
-
-        def write_new_line
-          @file.write("\n")
-        end
-
-        def write_comma
-          @file.write(',')
-        end
-
-        def write_colon
-          @file.write(":")
-        end
-
-        def close_array
-          write_new_line
-          write_indent
-          @file.write("]")
-          @indent_level -= 1
-        end
-      end
     end
 
     class Runner # :nodoc: all
diff --git a/tool/lib/test/unit/launchable.rb b/tool/lib/test/unit/launchable.rb
new file mode 100644
index 0000000000..38f4fe92b3
--- /dev/null
+++ b/tool/lib/test/unit/launchable.rb
@@ -0,0 +1,91 @@
+# frozen_string_literal: true
+require 'json'
+require 'uri'
+
+module Launchable
+  ##
+  # JsonStreamWriter writes a JSON file using a stream.
+  # By utilizing a stream, we can minimize memory usage, especially for large files.
+  class JsonStreamWriter
+    def initialize(path)
+      @file = File.open(path, "w")
+      @file.write("{")
+      @indent_level = 0
+      @is_first_key_val = true
+      @is_first_obj = true
+      write_new_line
+    end
+
+    def write_object obj
+      if @is_first_obj
+        @is_first_obj = false
+      else
+        write_comma
+        write_new_line
+      end
+      @indent_level += 1
+      @file.write(to_json_str(obj))
+      @indent_level -= 1
+      @is_first_key_val = true
+      # Occasionally, invalid JSON will be created as shown below, especially when `--repeat-count` is specified.
+      # {
+      #   "testPath": "file=test%2Ftest_timeout.rb&class=TestTimeout&testcase=test_allows_zero_seconds",
+      #   "status": "TEST_PASSED",
+      #   "duration": 2.7e-05,
+      #   "createdAt": "2024-02-09 12:21:07 +0000",
+      #   "stderr": null,
+      #   "stdout": null
+      # }: null <- here
+      # },
+      # To prevent this, IO#flush is called here.
+      @file.flush
+    end
+
+    def write_array(key)
+      @indent_level += 1
+      @file.write(to_json_str(key))
+      write_colon
+      @file.write(" ", "[")
+      write_new_line
+    end
+
+    def close
+      return if @file.closed?
+      close_array
+      @indent_level -= 1
+      write_new_line
+      @file.write("}", "\n")
+      @file.flush
+      @file.close
+    end
+
+    private
+    def to_json_str(obj)
+      json = JSON.pretty_generate(obj)
+      json.gsub(/^/, ' ' * (2 * @indent_level))
+    end
+
+    def write_indent
+      @file.write(" " * 2 * @indent_level)
+    end
+
+    def write_new_line
+      @file.write("\n")
+    end
+
+    def write_comma
+      @file.write(',')
+    end
+
+    def write_colon
+      @file.write(":")
+    end
+
+    def close_array
+      write_new_line
+      write_indent
+      @file.write("]")
+      @indent_level -= 1
+    end
+  end
+end