try to prevent mock leakage

Author: PetrHeinz

spec/logtail-rails/rack_logger_spec.rb

@@ -38,13 +38,21 @@ def method_for_action(action_name)
       it "should mute the default rails logs" do
         allow(::Rails).to receive(:env).and_return(ActiveSupport::StringInquirer.new("production")) # Rails 3.2.X
 
-        dispatch_rails_request("/rails_rack_logger")
+        # Disable Rails 8.1 event logging for this test to avoid extra log lines
+        original_enabled = Logtail::Integrations::Rails::EventLogSubscriber.enabled
+        Logtail::Integrations::Rails::EventLogSubscriber.enabled = false
 
-        lines = clean_lines(io.string.split("\n"))
-        expect(lines.length).to eq(3)
-        expect(lines[0]).to include("Started GET \\\"/rails_rack_logger\\\"")
-        expect(lines[1]).to include("Processing by RailsRackLoggerController#index as HTML")
-        expect(lines[2]).to include("Completed 200 OK in 0.0ms")
+        begin
+          dispatch_rails_request("/rails_rack_logger")
+
+          lines = clean_lines(io.string.split("\n"))
+          expect(lines.length).to eq(3)
+          expect(lines[0]).to include("Started GET \\\"/rails_rack_logger\\\"")
+          expect(lines[1]).to include("Processing by RailsRackLoggerController#index as HTML")
+          expect(lines[2]).to include("Completed 200 OK in 0.0ms")
+        ensure
+          Logtail::Integrations::Rails::EventLogSubscriber.enabled = original_enabled
+        end
       end
     end
   end

spec/spec_helper.rb

@@ -37,4 +37,13 @@
   config.expect_with :rspec do |c|
     c.syntax = :expect
   end
+
+  # Reset Logtail Config.instance.logger before each test to prevent mock leakage
+  config.before(:each) do
+    # Reset to default Rails logger proc to prevent mock leakage between tests
+    Logtail::Config.instance.logger = Proc.new { ::Rails.logger }
+
+    # Stub EventLogSubscriber#logger to prevent mock leakage from cached instances
+    allow_any_instance_of(Logtail::Integrations::Rails::EventLogSubscriber).to receive(:logger).and_return(Logtail::Config.instance.logger)
+  end
 end