2 files changed, 37 insertions, 1 deletions
diff --git a/activesupport/test/broadcast_logger_test.rb b/activesupport/test/broadcast_logger_test.rb
index ea2e388b8f..02bc317c66 100644
--- a/activesupport/test/broadcast_logger_test.rb
+++ b/activesupport/test/broadcast_logger_test.rb
@@ -123,6 +123,8 @@ module ActiveSupport
     end
 
     class CustomLogger
+      include ActiveSupport::LoggerSilence
+
       attr_reader :adds, :closed, :chevrons
       attr_accessor :level, :progname, :formatter, :local_level
 
@@ -174,7 +176,6 @@ module ActiveSupport
     end
 
     class FakeLogger < CustomLogger
-      include ActiveSupport::LoggerSilence
     end
   end
 end
diff --git a/activesupport/test/silence_logger_test.rb b/activesupport/test/silence_logger_test.rb
new file mode 100644
index 0000000000..fc5c5c1161
--- /dev/null
+++ b/activesupport/test/silence_logger_test.rb
@@ -0,0 +1,35 @@
+# frozen_string_literal: true
+
+require "abstract_unit"
+require "active_support/logger_silence"
+require "logger"
+
+class LoggerSilenceTest < ActiveSupport::TestCase
+  class MyLogger < ::Logger
+    include LoggerSilence
+  end
+
+  setup do
+    @io = StringIO.new
+    @logger = MyLogger.new(@io)
+  end
+
+  test "#silence silences the log" do
+    @logger.silence(Logger::ERROR) do
+      @logger.info("Foo")
+    end
+    @io.rewind
+
+    assert_empty @io.read
+  end
+
+  test "#debug? is true when setting the temporary level to Logger::DEBUG" do
+    @logger.level = Logger::INFO
+
+    @logger.silence(Logger::DEBUG) do
+      assert_predicate @logger, :debug?
+    end
+
+    assert_predicate @logger, :info?
+  end
+end