[ruby/irb] Cache completion files to require

https://github.com/ruby/irb/commit/612ebcb311

1 files changed, 12 insertions, 0 deletions

diff --git a/test/irb/test_completion.rb b/test/irb/test_completion.rb
index 04ac6dba5b..535690ae22 100644
--- a/test/irb/test_completion.rb
+++ b/test/irb/test_completion.rb
@@ -61,6 +61,11 @@ module TestIRB
       %w['irb/init 'irb/ruby-lex].each do |word|
         assert_include candidates, word
       end
+      # Test cache
+      candidates = IRB::InputCompletor::CompletionProc.("'irb", "require ", "")
+      %w['irb/init 'irb/ruby-lex].each do |word|
+        assert_include candidates, word
+      end
     end
 
     def test_complete_require_relative
@@ -70,6 +75,13 @@ module TestIRB
       %w['lib/irb/init 'lib/irb/ruby-lex].each do |word|
         assert_include candidates, word
       end
+      # Test cache
+      candidates = Dir.chdir(__dir__ + "/../..") do
+        IRB::InputCompletor::CompletionProc.("'lib/irb", "require_relative ", "")
+      end
+      %w['lib/irb/init 'lib/irb/ruby-lex].each do |word|
+        assert_include candidates, word
+      end
     end
   end
 end