From 835c63cd8818dfa86bce54d818c11cbec25b1285 Mon Sep 17 00:00:00 2001
From: "NARUSE, Yui" <naruse@airemix.jp>
Date: Thu, 15 Jul 2021 18:21:49 +0900
Subject: [PATCH] Add tests and NEWS [Feature #18008]

---
 NEWS.md                  | 2 ++
 test/ruby/test_struct.rb | 8 ++++++++
 2 files changed, 10 insertions(+)

diff --git a/NEWS.md b/NEWS.md
index 2ae2e2178b..702803eee7 100644
--- a/NEWS.md
+++ b/NEWS.md
@@ -96,6 +96,8 @@ Outstanding ones only.
       You need to use a Hash literal to set a Hash to a first member.
       [[Feature #16806]]
 
+    * StructClass#keyword_init? is added [[Feature #18008]]
+
 * Queue
 
     * Queue#initialize now accepts an Enumerable of initial values.
diff --git a/test/ruby/test_struct.rb b/test/ruby/test_struct.rb
index 7426282beb..000d229e17 100644
--- a/test/ruby/test_struct.rb
+++ b/test/ruby/test_struct.rb
@@ -138,6 +138,14 @@ module TestStruct
     assert_equal(3, struct.new(a: 1, b: 2).c)
   end
 
+  def test_struct_keyword_init_p
+    struct = @Struct.new(:a, :b, keyword_init: true)
+    assert_equal(true, struct.keyword_init?)
+
+    struct = @Struct.new(:a, :b, keyword_init: false)
+    assert_equal(false, struct.keyword_init?)
+  end
+
   def test_initialize
     klass = @Struct.new(:a)
     assert_raise(ArgumentError) { klass.new(1, 2) }