[ruby/irb] `show_doc` command should take non-string argument too

(https://github.com/ruby/irb/pull/478)

Given that `show_doc` already supports syntax like `String#gsub`, it
should be able to take it in non-string form too, like `edit` and
`show_source` do. This ensures users can have a consistent syntax on
argument between different commands.

1 files changed, 2 insertions, 2 deletions

diff --git a/test/irb/test_cmd.rb b/test/irb/test_cmd.rb
index d4b952490d..3602b7c331 100644
--- a/test/irb/test_cmd.rb
+++ b/test/irb/test_cmd.rb
@@ -379,13 +379,13 @@ module TestIRB
     def test_help_and_show_doc
       ["help", "show_doc"].each do |cmd|
         out, _ = execute_lines(
-          "#{cmd} 'String#gsub'\n",
+          "#{cmd} String#gsub\n",
           "\n",
         )
 
         # the former is what we'd get without document content installed, like on CI
         # the latter is what we may get locally
-        possible_rdoc_output = [/Nothing known about String#gsub/, /Returns a copy of self with all occurrences of the given pattern/]
+        possible_rdoc_output = [/Nothing known about String#gsub/, /str.gsub\(pattern\)/]
         assert(possible_rdoc_output.any? { |output| output.match?(out) }, "Expect the `#{cmd}` command to match one of the possible outputs")
       end
     ensure