https://git.ruby-lang.org/ruby.git/commit/?id=617a3735ae

From 617a3735aedc12fe82b6806d6d3a37c3f977fef1 Mon Sep 17 00:00:00 2001
From: Benoit Daloze <eregontp@g...>
Date: Sun, 1 Dec 2019 14:11:42 +0100
Subject: Update to ruby/spec@dcf4955


diff --git a/spec/ruby/core/array/shared/slice.rb b/spec/ruby/core/array/shared/slice.rb
index 73456eb..1e7fdf9 100644
--- a/spec/ruby/core/array/shared/slice.rb
+++ b/spec/ruby/core/array/shared/slice.rb
@@ -117,6 +117,27 @@ describe :array_slice, shared: true do https://github.com/ruby/ruby/blob/trunk/spec/ruby/core/array/shared/slice.rb#L117
     a.send(@method, 0, obj).should == [1, 2]
   end
 
+  it "raises TypeError if to_int returns non-integer" do
+    from = mock('from')
+    to = mock('to')
+
+    # So we can construct a range out of them...
+    def from.<=>(o) 0 end
+    def to.<=>(o) 0 end
+
+    a = [1, 2, 3, 4, 5]
+
+    def from.to_int() 'cat' end
+    def to.to_int() -2 end
+
+    -> { a.send(@method, from..to) }.should raise_error(TypeError)
+
+    def from.to_int() 1 end
+    def to.to_int() 'cat' end
+
+    -> { a.send(@method, from..to) }.should raise_error(TypeError)
+  end
+
   it "returns the elements specified by Range indexes with [m..n]" do
     [ "a", "b", "c", "d", "e" ].send(@method, 1..3).should == ["b", "c", "d"]
     [ "a", "b", "c", "d", "e" ].send(@method, 4..-1).should == ['e']
-- 
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