Use feature detection to find out if detailed_message is available

* See oracle/truffleruby#3257
eregon · Sep 13, 2023 · efaf97b · efaf97b
1 parent 10be5db
commit efaf97b
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diff --git a/lib/roda/plugins/exception_page.rb b/lib/roda/plugins/exception_page.rb
@@ -411,7 +411,7 @@ def exception_page_js
 
         private
 
-        if RUBY_VERSION >= '3.2'
+        if Exception.method_defined?(:detailed_message)
           def exception_page_exception_message(exception)
             exception.detailed_message(highlight: false).to_s
           end

diff --git a/spec/plugin/exception_page_spec.rb b/spec/plugin/exception_page_spec.rb
@@ -15,7 +15,7 @@ def req(path = '/', headers={})
     end
   end
 
-  message = RUBY_VERSION >= '3.2' ? "foo (RuntimeError)" : "foo"
+  message = Exception.method_defined?(:detailed_message) ? "foo (RuntimeError)" : "foo"
 
   it "returns HTML page with exception information if text/html is accepted" do
     ep_app
-Original file line number
+Diff line change
@@ Expand Up / @@ -15,7 +15,7 @@ def req(path = '/', headers={}) @@
         end
       end
-      message = RUBY_VERSION >= '3.2' ? "foo (RuntimeError)" : "foo"
+      message = Exception.method_defined?(:detailed_message) ? "foo (RuntimeError)" : "foo"
       it "returns HTML page with exception information if text/html is accepted" do
         ep_app
@@ Expand Down @@