Update to ruby/spec@9277d27

1 files changed, 25 insertions, 0 deletions

diff --git a/spec/ruby/core/exception/top_level_spec.rb b/spec/ruby/core/exception/top_level_spec.rb
index 96f957411e..97a91b0a58 100644
--- a/spec/ruby/core/exception/top_level_spec.rb
+++ b/spec/ruby/core/exception/top_level_spec.rb
@@ -5,6 +5,31 @@ describe "An Exception reaching the top level" do
     ruby_exe('raise "foo"', args: "2>&1").should.include?("in `<main>': foo (RuntimeError)")
   end
 
+  ruby_version_is "2.6" do
+    it "the Exception#cause is printed to STDERR with backtraces" do
+      code = <<-RUBY
+      def raise_cause
+        raise "the cause" 
+      end
+      def raise_wrapped
+        raise "wrapped"
+      end
+      begin
+        raise_cause
+      rescue
+        raise_wrapped
+      end
+      RUBY
+      lines = ruby_exe(code, args: "2>&1").lines
+      lines.reject! { |l| l.include?('rescue in') }
+      lines.map! { |l| l.split(':')[2..-1].join(':').chomp }
+      lines.should == ["in `raise_wrapped': wrapped (RuntimeError)",
+                       "in `<main>'",
+                       "in `raise_cause': the cause (RuntimeError)",
+                       "in `<main>'"]
+    end
+  end
+
   describe "with a custom backtrace" do
     it "is printed on STDERR" do
       code = <<-RUBY