From e8b1c9d099ea4c40985cac0ce1c8b97079122376 Mon Sep 17 00:00:00 2001
From: Takashi Kokubun <takashikkbn@gmail.com>
Date: Mon, 7 Nov 2022 09:26:05 -0800
Subject: [PATCH] Test show_source as a method

---
 test/irb/test_cmd.rb | 17 +++++++++++++++++
 1 file changed, 17 insertions(+)

diff --git a/test/irb/test_cmd.rb b/test/irb/test_cmd.rb
index 22ee5eaaa..a48b2c116 100644
--- a/test/irb/test_cmd.rb
+++ b/test/irb/test_cmd.rb
@@ -563,6 +563,23 @@ def test_show_source
       assert_match(%r[/irb\.rb], out)
     end
 
+    def test_show_source_method
+      input = TestInputMethod.new([
+        "p show_source('IRB.conf')\n",
+      ])
+      IRB.init_config(nil)
+      workspace = IRB::WorkSpace.new(self)
+      IRB.conf[:VERBOSE] = false
+      irb = IRB::Irb.new(workspace, input)
+      IRB.conf[:MAIN_CONTEXT] = irb.context
+      irb.context.return_format = "=> %s\n"
+      out, err = capture_output do
+        irb.eval_input
+      end
+      assert_empty err
+      assert_match(%r[/irb\.rb], out)
+    end
+
     def test_show_source_string
       input = TestInputMethod.new([
         "show_source 'IRB.conf'\n",