Add extra debugging tool for specs expected to pass

spec/rspec/rails/example/view_example_group_spec.rb

@@ -1,3 +1,5 @@
+require 'support/group_failure_formatter'
+
 module RSpec::Rails
   RSpec.describe ViewExampleGroup do
     it_behaves_like "an rspec-rails example group mixin", :view,
@@ -242,9 +244,10 @@ def _view; end # Stub method
             run_count += 1
           end
           group = RSpec::Core::ExampleGroup.describe 'a view', type: :view do
-            specify { true }
+            specify { expect(true).to eq true }
           end
-          group.run
+          group.run(failure_reporter)
+          expect(failure_reporter.exceptions).to eq []
           expect(run_count).to eq 1
         end
       end

spec/support/group_failure_formatter.rb

@@ -0,0 +1,23 @@
+module RSpec::Rails::TestSupport
+  class FailureReporter
+    def initialize
+      @exceptions = []
+    end
+    attr_reader :exceptions
+
+    def example_failed(example)
+      @exceptions << example.exception
+    end
+
+    def method_missing(name, *_args, &_block)
+    end
+  end
+
+  def failure_reporter
+    @failure_reporter ||= FailureReporter.new
+  end
+end
+
+RSpec.configure do |config|
+  config.include RSpec::Rails::TestSupport
+end