1 files changed, 148 insertions, 0 deletions
diff --git a/test/ruby/box/consts.rb b/test/ruby/box/consts.rb
new file mode 100644
index 0000000000..e40cd5c50c
--- /dev/null
+++ b/test/ruby/box/consts.rb
@@ -0,0 +1,148 @@
+$VERBOSE = nil
+class String
+  STR_CONST1 = 111
+  STR_CONST2 = 222
+  STR_CONST3 = 333
+end
+
+class String
+  STR_CONST1 = 112
+
+  def self.set0(val)
+    const_set(:STR_CONST0, val)
+  end
+
+  def self.remove0
+    remove_const(:STR_CONST0)
+  end
+
+  def refer0
+    STR_CONST0
+  end
+
+  def refer1
+    STR_CONST1
+  end
+
+  def refer2
+    STR_CONST2
+  end
+
+  def refer3
+    STR_CONST3
+  end
+end
+
+module ForConsts
+  CONST1 = 111
+end
+
+TOP_CONST = 10
+
+module ForConsts
+  CONST1 = 112
+  CONST2 = 222
+  CONST3 = 333
+
+  def self.refer_all
+    ForConsts::CONST1
+    ForConsts::CONST2
+    ForConsts::CONST3
+    String::STR_CONST1
+    String::STR_CONST2
+    String::STR_CONST3
+  end
+
+  def self.refer1
+    CONST1
+  end
+
+  def self.get1
+    const_get(:CONST1)
+  end
+
+  def self.refer2
+    CONST2
+  end
+
+  def self.get2
+    const_get(:CONST2)
+  end
+
+  def self.refer3
+    CONST3
+  end
+
+  def self.get3
+    const_get(:CONST3)
+  end
+
+  def self.refer_top_const
+    TOP_CONST
+  end
+
+  # for String
+  class Proxy
+    def call_str_refer0
+      String.new.refer0
+    end
+
+    def call_str_get0
+      String.const_get(:STR_CONST0)
+    end
+
+    def call_str_set0(val)
+      String.set0(val)
+    end
+
+    def call_str_remove0
+      String.remove0
+    end
+
+    def call_str_refer1
+      String.new.refer1
+    end
+
+    def call_str_get1
+      String.const_get(:STR_CONST1)
+    end
+
+    String::STR_CONST2 = 223
+
+    def call_str_refer2
+      String.new.refer2
+    end
+
+    def call_str_get2
+      String.const_get(:STR_CONST2)
+    end
+
+    def call_str_set3
+      String.const_set(:STR_CONST3, 334)
+    end
+
+    def call_str_refer3
+      String.new.refer3
+    end
+
+    def call_str_get3
+      String.const_get(:STR_CONST3)
+    end
+
+    # for Integer
+    Integer::INT_CONST1 = 1
+
+    def refer_int_const1
+      Integer::INT_CONST1
+    end
+  end
+end
+
+# should not raise errors
+ForConsts.refer_all
+String::STR_CONST1
+Integer::INT_CONST1
+
+# If we execute this sentence once, the constant value will be cached on ISeq inline constant cache.
+# And it changes the behavior of ForConsts.refer_consts_directly called from global.
+# ForConsts.refer_consts_directly # should not raise errors too