https://git.ruby-lang.org/ruby.git/commit/?id=1d686bdeb9

From 1d686bdeb9d144f4ae2298c7ab5f46edefbd18dc Mon Sep 17 00:00:00 2001
From: Nobuyoshi Nakada <nobu@r...>
Date: Mon, 8 Feb 2021 11:04:23 +0900
Subject: Added test for keyword arguments to ARGF

---
 test/ruby/test_argf.rb | 42 ++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 42 insertions(+)

diff --git a/test/ruby/test_argf.rb b/test/ruby/test_argf.rb
index 6262514..874f084 100644
--- a/test/ruby/test_argf.rb
+++ b/test/ruby/test_argf.rb
@@ -745,6 +745,18 @@ class TestArgf < Test::Unit::TestCase https://github.com/ruby/ruby/blob/trunk/test/ruby/test_argf.rb#L745
                       ["\"a\\n\"", "\"b\\n\""], [])
     assert_in_out_err(['-e', 'ARGF.each_line(chomp: true) {|para| p para}'], "a\nb\n",
                       ["\"a\"", "\"b\""], [])
+
+    t = make_tempfile
+    argf = ARGF.class.new(t.path)
+    lines = []
+    begin
+      argf.each_line(chomp: true) do |line|
+        lines << line
+      end
+    ensure
+      argf.close
+    end
+    assert_equal(%w[foo bar baz], lines)
   end
 
   def test_each_byte
@@ -993,6 +1005,36 @@ class TestArgf < Test::Unit::TestCase https://github.com/ruby/ruby/blob/trunk/test/ruby/test_argf.rb#L1005
     assert_nil(argf.gets, bug4274)
   end
 
+  def test_readlines_chomp
+    t = make_tempfile
+    argf = ARGF.class.new(t.path)
+    begin
+      assert_equal(%w[foo bar baz], argf.readlines(chomp: true))
+    ensure
+      argf.close
+    end
+  end
+
+  def test_readline_chomp
+    t = make_tempfile
+    argf = ARGF.class.new(t.path)
+    begin
+      assert_equal("foo", argf.readline(chomp: true))
+    ensure
+      argf.close
+    end
+  end
+
+  def test_gets_chomp
+    t = make_tempfile
+    argf = ARGF.class.new(t.path)
+    begin
+      assert_equal("foo", argf.gets(chomp: true))
+    ensure
+      argf.close
+    end
+  end
+
   def test_readlines_twice
     bug5952 = '[ruby-dev:45160]'
     assert_ruby_status(["-e", "2.times {STDIN.tty?; readlines}"], "", bug5952)
-- 
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