1 files changed, 127 insertions, 0 deletions
diff --git a/test/irb/test_cmd.rb b/test/irb/test_cmd.rb
new file mode 100644
index 0000000000..bb33f535b6
--- /dev/null
+++ b/test/irb/test_cmd.rb
@@ -0,0 +1,127 @@
+# frozen_string_literal: false
+require "test/unit"
+require "irb"
+require "irb/extend-command"
+
+module TestIRB
+  class ExtendCommand < Test::Unit::TestCase
+    def setup
+      @pwd = Dir.pwd
+      @tmpdir = File.join(Dir.tmpdir, "test_reline_config_#{$$}")
+      begin
+        Dir.mkdir(@tmpdir)
+      rescue Errno::EEXIST
+        FileUtils.rm_rf(@tmpdir)
+        Dir.mkdir(@tmpdir)
+      end
+      Dir.chdir(@tmpdir)
+      @home_backup = ENV["HOME"]
+      ENV["HOME"] = @tmpdir
+      @default_encoding = [Encoding.default_external, Encoding.default_internal]
+      @stdio_encodings = [STDIN, STDOUT, STDERR].map {|io| [io.external_encoding, io.internal_encoding] }
+      IRB.instance_variable_get(:@CONF).clear
+    end
+
+    def teardown
+      ENV["HOME"] = @home_backup
+      Dir.chdir(@pwd)
+      FileUtils.rm_rf(@tmpdir)
+      EnvUtil.suppress_warning {
+        Encoding.default_external, Encoding.default_internal = *@default_encoding
+        [STDIN, STDOUT, STDERR].zip(@stdio_encodings) do |io, encs|
+          io.set_encoding(*encs)
+        end
+      }
+    end
+
+    def test_irb_info_multiline
+      FileUtils.touch("#{@tmpdir}/.inputrc")
+      FileUtils.touch("#{@tmpdir}/.irbrc")
+      IRB.setup(__FILE__, argv: [])
+      IRB.conf[:USE_MULTILINE] = true
+      IRB.conf[:USE_SINGLELINE] = false
+      IRB.conf[:VERBOSE] = false
+      workspace = IRB::WorkSpace.new(self)
+      irb = IRB::Irb.new(workspace)
+      IRB.conf[:MAIN_CONTEXT] = irb.context
+      expected = %r{
+        Ruby\sversion: .+\n
+        IRB\sversion:\sirb .+\n
+        InputMethod:\sReidlineInputMethod\swith\sReline .+ and .+\n
+        \.irbrc\spath: .+
+      }x
+      assert_match expected, irb.context.main.irb_info.to_s
+    end
+
+    def test_irb_info_singleline
+      FileUtils.touch("#{@tmpdir}/.inputrc")
+      FileUtils.touch("#{@tmpdir}/.irbrc")
+      IRB.setup(__FILE__, argv: [])
+      IRB.conf[:USE_MULTILINE] = false
+      IRB.conf[:USE_SINGLELINE] = true
+      IRB.conf[:VERBOSE] = false
+      workspace = IRB::WorkSpace.new(self)
+      irb = IRB::Irb.new(workspace)
+      IRB.conf[:MAIN_CONTEXT] = irb.context
+      expected = %r{
+        Ruby\sversion: .+\n
+        IRB\sversion:\sirb .+\n
+        InputMethod:\sReadlineInputMethod\swith .+ and .+\n
+        \.irbrc\spath: .+
+      }x
+      assert_match expected, irb.context.main.irb_info.to_s
+    end
+
+    def test_irb_info_multiline_without_rc_files
+      inputrc_backup = ENV["INPUTRC"]
+      ENV["INPUTRC"] = "unknown_inpurc"
+      ext_backup = IRB::IRBRC_EXT
+      IRB.__send__(:remove_const, :IRBRC_EXT)
+      IRB.const_set(:IRBRC_EXT, "unknown_ext")
+      IRB.setup(__FILE__, argv: [])
+      IRB.conf[:USE_MULTILINE] = true
+      IRB.conf[:USE_SINGLELINE] = false
+      IRB.conf[:VERBOSE] = false
+      workspace = IRB::WorkSpace.new(self)
+      irb = IRB::Irb.new(workspace)
+      IRB.conf[:MAIN_CONTEXT] = irb.context
+      expected = %r{
+        Ruby\sversion: .+\n
+        IRB\sversion:\sirb .+\n
+        InputMethod:\sReidlineInputMethod\swith\sReline\s[^ ]+(?!\sand\s.+)\n
+        \z
+      }x
+      assert_match expected, irb.context.main.irb_info.to_s
+    ensure
+      ENV["INPUTRC"] = inputrc_backup
+      IRB.__send__(:remove_const, :IRBRC_EXT)
+      IRB.const_set(:IRBRC_EXT, ext_backup)
+    end
+
+    def test_irb_info_singleline_without_rc_files
+      inputrc_backup = ENV["INPUTRC"]
+      ENV["INPUTRC"] = "unknown_inpurc"
+      ext_backup = IRB::IRBRC_EXT
+      IRB.__send__(:remove_const, :IRBRC_EXT)
+      IRB.const_set(:IRBRC_EXT, "unknown_ext")
+      IRB.setup(__FILE__, argv: [])
+      IRB.conf[:USE_MULTILINE] = false
+      IRB.conf[:USE_SINGLELINE] = true
+      IRB.conf[:VERBOSE] = false
+      workspace = IRB::WorkSpace.new(self)
+      irb = IRB::Irb.new(workspace)
+      IRB.conf[:MAIN_CONTEXT] = irb.context
+      expected = %r{
+        Ruby\sversion: .+\n
+        IRB\sversion:\sirb .+\n
+        InputMethod:\sReadlineInputMethod\swith\s(?~.*\sand\s.+)\n
+        \z
+      }x
+      assert_match expected, irb.context.main.irb_info.to_s
+    ensure
+      ENV["INPUTRC"] = inputrc_backup
+      IRB.__send__(:remove_const, :IRBRC_EXT)
+      IRB.const_set(:IRBRC_EXT, ext_backup)
+    end
+  end
+end