make sync-default-gems GEM=irb

from https://github.com/ruby/irb/commit/e6739d8c66dc78562930adb0b96935c9b38acf74

6 files changed, 151 insertions, 8 deletions

diff --git a/test/irb/test_color.rb b/test/irb/test_color.rb
index 4b1878545e..8439fd54f5 100644
--- a/test/irb/test_color.rb
+++ b/test/irb/test_color.rb
@@ -15,6 +15,11 @@ module TestIRB
     CYAN      = "\e[36m"
 
     def test_colorize_code
+      if Gem::Version.new(RUBY_VERSION) < Gem::Version.new('2.5.0')
+        assert_equal({}, IRB::Color::TOKEN_SEQ_EXPRS)
+        skip "this Ripper version is not supported"
+      end
+
       {
         "1" => "#{BLUE}#{BOLD}1#{CLEAR}",
         "2.3" => "#{MAGENTA}#{BOLD}2.3#{CLEAR}",
@@ -23,11 +28,22 @@ module TestIRB
         "def self.foo; bar; end" => "#{GREEN}def#{CLEAR} #{CYAN}#{BOLD}self#{CLEAR}.#{BLUE}#{BOLD}foo#{CLEAR}; bar; #{GREEN}end#{CLEAR}",
         'ERB.new("a#{nil}b", trim_mode: "-")' => "#{BLUE}#{BOLD}#{UNDERLINE}ERB#{CLEAR}.new(#{RED}\"#{CLEAR}#{RED}a#{CLEAR}#{RED}\#{#{CLEAR}#{CYAN}#{BOLD}nil#{CLEAR}#{RED}}#{CLEAR}#{RED}b#{CLEAR}#{RED}\"#{CLEAR}, #{MAGENTA}trim_mode:#{CLEAR} #{RED}\"#{CLEAR}#{RED}-#{CLEAR}#{RED}\"#{CLEAR})",
         "# comment" => "#{BLUE}#{BOLD}# comment#{CLEAR}",
-        '/r#{e}g/' => "#{RED}#{BOLD}/#{CLEAR}#{RED}r#{CLEAR}#{RED}\#{#{CLEAR}e}#{RED}g#{CLEAR}#{RED}#{BOLD}/#{CLEAR}",
         "yield(hello)" => "#{GREEN}yield#{CLEAR}(hello)",
       }.each do |code, result|
         assert_equal(result, with_term { IRB::Color.colorize_code(code) })
       end
+
+      if Gem::Version.new(RUBY_VERSION) >= Gem::Version.new('2.6.0')
+        {
+          '/r#{e}g/' => "#{RED}#{BOLD}/#{CLEAR}#{RED}r#{CLEAR}#{RED}\#{#{CLEAR}e}#{RED}g#{CLEAR}#{RED}#{BOLD}/#{CLEAR}",
+        }
+      else
+        {
+          '/r#{e}g/' => "#{RED}#{BOLD}/#{CLEAR}#{RED}r#{CLEAR}#{RED}\#{#{CLEAR}e#{RED}}#{CLEAR}#{RED}g#{CLEAR}#{RED}#{BOLD}/#{CLEAR}",
+        }
+      end.each do |code, result|
+        assert_equal(result, with_term { IRB::Color.colorize_code(code) })
+      end
     end
 
     def test_inspect_colorable
diff --git a/test/irb/test_completion.rb b/test/irb/test_completion.rb
new file mode 100644
index 0000000000..608c41bad9
--- /dev/null
+++ b/test/irb/test_completion.rb
@@ -0,0 +1,22 @@
+# frozen_string_literal: false
+require 'test/unit'
+
+module TestIRB
+  class TestCompletion < Test::Unit::TestCase
+    def test_nonstring_module_name
+      begin
+        require "irb/completion"
+        bug5938 = '[ruby-core:42244]'
+        cmds = %W[-rirb -rirb/completion -e IRB.setup(__FILE__)
+         -e IRB.conf[:MAIN_CONTEXT]=IRB::Irb.new.context
+         -e module\sFoo;def\sself.name;//;end;end
+         -e IRB::InputCompletor::CompletionProc.call("[1].first.")
+         -- -f --]
+        status = assert_in_out_err(cmds, "", //, [], bug5938)
+        assert(status.success?, bug5938)
+      rescue LoadError
+        skip "cannot load irb/completion"
+      end
+    end
+  end
+end
diff --git a/test/irb/test_context.rb b/test/irb/test_context.rb
index 469599c11b..fa2432b3f3 100644
--- a/test/irb/test_context.rb
+++ b/test/irb/test_context.rb
@@ -55,7 +55,6 @@ module TestIRB
     end
 
     def test_eval_input
-      verbose, $VERBOSE = $VERBOSE, nil
       input = TestInputMethod.new([
         "raise 'Foo'\n",
         "_\n",
@@ -72,8 +71,6 @@ module TestIRB
                            :*, /0$/,
                            :*, /0$/,
                            /\s*/], out)
-    ensure
-      $VERBOSE = verbose
     end
   end
 end
diff --git a/test/irb/test_raise_no_backtrace_exception.rb b/test/irb/test_raise_no_backtrace_exception.rb
index 72e82bf7f7..d3882a427c 100644
--- a/test/irb/test_raise_no_backtrace_exception.rb
+++ b/test/irb/test_raise_no_backtrace_exception.rb
@@ -4,7 +4,7 @@ require 'test/unit'
 module TestIRB
   class TestRaiseNoBacktraceException < Test::Unit::TestCase
     def test_raise_exception
-      assert_in_out_err(%w[-rirb -W1 -e IRB.start(__FILE__) -- -f --], <<-IRB, /Exception: foo/, [], success: true)
+      status = assert_in_out_err(%w[-rirb -e IRB.start(__FILE__) -- -f --], <<-IRB, /Exception: foo/, [])
       e = Exception.new("foo")
       def e.backtrace; nil; end
       raise e
diff --git a/test/irb/test_ruby-lex.rb b/test/irb/test_ruby-lex.rb
new file mode 100644
index 0000000000..b07b4a2eb6
--- /dev/null
+++ b/test/irb/test_ruby-lex.rb
@@ -0,0 +1,108 @@
+# frozen_string_literal: false
+require 'test/unit'
+require 'irb/ruby-lex'
+require 'stringio'
+
+module TestIRB
+  class TestRubyLex < Test::Unit::TestCase
+    def setup
+      @scanner = RubyLex.new
+    end
+
+    def teardown
+      RubyLex.debug_level = 0
+    end
+
+    def test_set_input_proc
+      called = false
+      @scanner.set_input(nil) {called = true; nil}
+      @scanner.each_top_level_statement {}
+      assert(called)
+    end
+
+    def test_comment
+      assert_equal([["#\n", 1]], top_level_statement("#\n"))
+    end
+
+    def test_top_level_statement
+      result = top_level_statement("#{<<-"begin;"}#{<<~"end;"}")
+      begin;
+        begin
+        end
+        begin
+        end
+      end;
+      assert_equal([
+                     ["begin\n""end\n", 1],
+                     ["begin\n""end\n", 3],
+                   ],
+                   result)
+    end
+
+    def test_immature_statement
+      src = "if false\n"
+      assert_equal([[src, 1]], top_level_statement(src))
+    end
+
+    def test_prompt
+      prompts = []
+      @scanner.set_prompt {|*a|
+        a << @scanner.instance_variable_get(:@lex_state)
+        unless prompts.last == a
+          prompts << a
+        end
+      }
+      src, lineno = "#{<<-"begin;"}#{<<~'end;'}", __LINE__+1
+      begin;
+        #            #;# LTYPE:INDENT:CONTINUE
+        x            #;# -:0:-
+        x(           #;# -:0:-
+        )            #;# -:1:*
+        a \          #;# -:0:-
+                     #;# -:0:*
+        a;           #;# -:0:-
+        a            #;# -:0:-
+                     #;# -:0:-
+        a            #;# -:0:-
+        a =          #;# -:0:-
+          '          #;# -:0:*
+          '          #;# ':0:*
+        if false or  #;# -:0:-
+          true       #;# -:1:*
+          a          #;# -:1:-
+          "          #;# -:1:-
+          "          #;# ":1:-
+          begin      #;# -:1:-
+            a        #;# -:2:-
+            a        #;# -:2:-
+          end        #;# -:2:-
+        else         #;# -:1:-
+          nil        #;# -:1:-
+        end          #;# -:1:-
+      end;
+      top_level_statement(src.gsub(/[ \t]*#;#.*/, ''))
+      src.each_line.with_index(1) do |line, i|
+        p = prompts.shift
+        next unless /#;#\s*(?:-|(?<ltype>\S)):(?<indent>\d+):(?:(?<cont>\*)|-)(?:.*FIXME:(?<fixme>.*))?/ =~ line
+        indent = indent.to_i
+        cont = (fixme && /`continue'/.match?(fixme)) ^ cont
+        assert_equal([ltype, indent, cont, i], p[0..3], "#{lineno+i}:#{p[4]}: #{line}")
+      end
+    end
+
+    def top_level_statement(lines)
+      input = InputLines.new(lines, "r")
+      scanned = []
+      @scanner.set_input(input)
+      @scanner.each_top_level_statement {|*e|
+        scanned << e
+        yield(*e) if defined?(yield)
+      }
+      scanned
+    end
+
+    class InputLines < StringIO
+      alias encoding external_encoding
+    end
+  end
+end
diff --git a/test/irb/test_workspace.rb b/test/irb/test_workspace.rb
index 9c87468cf7..fe63c3c225 100644
--- a/test/irb/test_workspace.rb
+++ b/test/irb/test_workspace.rb
@@ -7,7 +7,7 @@ require 'irb/color'
 module TestIRB
   class TestWorkSpace < Test::Unit::TestCase
     def test_code_around_binding
-      Tempfile.create do |f|
+      Tempfile.create('irb') do |f|
         code = <<~RUBY
           # 1
           # 2
@@ -37,7 +37,7 @@ module TestIRB
       skip 'chmod cannot make file unreadable on windows' if windows?
       skip 'skipped in root privilege' if Process.uid == 0
 
-      Tempfile.create do |f|
+      Tempfile.create('irb') do |f|
         code = "IRB::WorkSpace.new(binding)\n"
         f.print(code)
         f.close
@@ -51,7 +51,7 @@ module TestIRB
 
     def test_code_around_binding_with_script_lines__
       with_script_lines do |script_lines|
-        Tempfile.create do |f|
+        Tempfile.create('irb') do |f|
           code = "IRB::WorkSpace.new(binding)\n"
           script_lines[f.path] = code.split(/^/)