diff --git a/.gitignore b/.gitignore
index 8436db2..970a122 100644
--- a/.gitignore
+++ b/.gitignore
@@ -1,3 +1,4 @@
 /.gems/
 /tmp/
+test/**/file
 *.so
diff --git a/test/setup.rb b/test/setup.rb
index 5235f26..5136d9c 100644
--- a/test/setup.rb
+++ b/test/setup.rb
@@ -3,3 +3,25 @@
 require "bundler/setup"
 require "test/unit"
 require "bsdcontrol"
+
+module BSD::Control
+  class Test < Test::Unit::TestCase
+    require "fileutils"
+    include FileUtils
+
+    def setup
+      File.exist?(file) ? rm(file) : nil
+      touch(file)
+    end
+
+    def teardown
+      File.exist?(file) ? rm(file) : nil
+    end
+
+    private
+
+    def file
+      File.join(__dir__, "file")
+    end
+  end
+end
diff --git a/test/superuser/disable_feature_test.rb b/test/superuser/disable_feature_test.rb
index 39a25d9..3af4f84 100644
--- a/test/superuser/disable_feature_test.rb
+++ b/test/superuser/disable_feature_test.rb
@@ -2,32 +2,19 @@
 
 require_relative "../setup"
 module BSD::Control
-  class DisableFeatureTest < Test::Unit::TestCase
-    require "fileutils"
-    include FileUtils
-
+  class DisableFeatureTest < BSD::Control::Test
     def test_disable_pageexec
-      touch(file)
-      assert BSD::Control.feature(:pageexec).disable!(file),
-             "The disable! method should have returned true"
-      assert_equal(
-        :disabled,
-        BSD::Control.feature(:pageexec).status(file)
-      )
-    ensure
-      rm(file)
+      assert_equal true,
+                   BSD::Control.feature(:pageexec).disable!(file)
+      assert_equal :disabled,
+                   BSD::Control.feature(:pageexec).status(file)
     end
 
     def test_disable_pageexec_nonexistent_file
+      rm(file)
       assert_raises(Errno::ENOENT) do
         BSD::Control.feature(:pageexec).disable!(file)
       end
     end
-
-    private
-
-    def file
-      File.join(__dir__, "file")
-    end
   end
 end
diff --git a/test/superuser/enable_feature_test.rb b/test/superuser/enable_feature_test.rb
index e0317ef..9c9762a 100644
--- a/test/superuser/enable_feature_test.rb
+++ b/test/superuser/enable_feature_test.rb
@@ -2,37 +2,23 @@
 
 require_relative "../setup"
 module BSD::Control
-  class EnableFeatureTest < Test::Unit::TestCase
-    require "fileutils"
-    include FileUtils
-
+  class EnableFeatureTest < BSD::Control::Test
     def test_enable_pageexec
-      touch(file)
-      assert BSD::Control.feature(:pageexec).enable!(file),
-             "The enable! method should have returned true"
-    ensure
-      rm(file)
+      assert_equal true,
+                   BSD::Control.feature(:pageexec).enable!(file)
     end
 
-    def test_enable_pageexec_zero_permissions
-      touch(file)
+    def test_enable_pageexec_mode_zero
       chmod(0, file)
-      assert BSD::Control.feature(:pageexec).enable!(file),
-             "The enable! method should have returned true"
-    ensure
-      rm(file)
+      assert_equal true,
+                   BSD::Control.feature(:pageexec).enable!(file)
     end
 
     def test_enable_pageexec_nonexistent_file
+      rm(file)
       assert_raises(Errno::ENOENT) do
         BSD::Control.feature(:pageexec).enable!(file)
       end
     end
-
-    private
-
-    def file
-      File.join(__dir__, "file")
-    end
   end
 end
diff --git a/test/superuser/feature_status_test.rb b/test/superuser/feature_status_test.rb
index 24b7ad6..89ae73c 100644
--- a/test/superuser/feature_status_test.rb
+++ b/test/superuser/feature_status_test.rb
@@ -2,40 +2,22 @@
 
 require_relative "../setup"
 module BSD::Control
-  class FeatureStatusTest < Test::Unit::TestCase
-    require "fileutils"
-    include FileUtils
-
+  class FeatureStatusTest < BSD::Control::Test
     def test_pageexec_sysdef_status
-      touch(file)
       assert_equal :sysdef,
                    BSD::Control.feature(:pageexec).status(file)
-    ensure
-      rm(file)
     end
 
     def test_pageexec_enabled_status
-      touch(file)
       BSD::Control.feature(:pageexec).enable!(file)
       assert_equal :enabled,
                    BSD::Control.feature(:pageexec).status(file)
-    ensure
-      rm(file)
     end
 
     def test_pageexec_disabled_status
-      touch(file)
       BSD::Control.feature(:pageexec).disable!(file)
       assert_equal :disabled,
                    BSD::Control.feature(:pageexec).status(file)
-    ensure
-      rm(file)
-    end
-
-    private
-
-    def file
-      File.join(__dir__, "file")
     end
   end
 end
diff --git a/test/superuser/sysdef_feature_test.rb b/test/superuser/sysdef_feature_test.rb
index 702c7fd..ddad3f7 100644
--- a/test/superuser/sysdef_feature_test.rb
+++ b/test/superuser/sysdef_feature_test.rb
@@ -2,38 +2,23 @@
 
 require_relative "../setup"
 module BSD::Control
-  class SysDefFeatureTest < Test::Unit::TestCase
-    require "fileutils"
-    include FileUtils
-
+  class SysDefFeatureTest < BSD::Control::Test
     def test_sysdef_pageexec
-      touch(file)
-      assert BSD::Control.feature(:pageexec).enable!(file),
-             "The enable! method should have returned true"
-      assert_equal(
-        :enabled,
-        BSD::Control.feature(:pageexec).status(file)
-      )
-      assert BSD::Control.feature(:pageexec).sysdef!(file),
-             "The sysdef! method should have returned true"
-      assert_equal(
-        :sysdef,
-        BSD::Control.feature(:pageexec).status(file)
-      )
-    ensure
-      rm(file)
+      assert_equal true,
+                   BSD::Control.feature(:pageexec).enable!(file)
+      assert_equal :enabled,
+                   BSD::Control.feature(:pageexec).status(file)
+      assert_equal true,
+                   BSD::Control.feature(:pageexec).sysdef!(file)
+      assert_equal :sysdef,
+                   BSD::Control.feature(:pageexec).status(file)
     end
 
     def test_enable_pageexec_nonexistent_file
+      rm(file)
       assert_raises(Errno::ENOENT) do
         BSD::Control.feature(:pageexec).sysdef!(file)
       end
     end
-
-    private
-
-    def file
-      File.join(__dir__, "file")
-    end
   end
 end
diff --git a/test/unprivileged/available_features_test.rb b/test/unprivileged/available_features_test.rb
index efaea01..26a93a6 100644
--- a/test/unprivileged/available_features_test.rb
+++ b/test/unprivileged/available_features_test.rb
@@ -2,15 +2,14 @@
 
 require_relative "../setup"
 module BSD::Control
-  class AvailableFeaturesTest < Test::Unit::TestCase
+  class AvailableFeaturesTest < BSD::Control::Test
     def test_available_features_not_empty
-      refute available_features.empty?,
-             "There should have been at least one available feature"
+      assert_equal false, available_features.empty?
     end
 
     def test_available_features_instance_of
-      assert available_features.all? { _1.instance_of?(BSD::Control::Feature) },
-             "All available features should be an instance of `BSD::Control::Feature`"
+      assert_equal true,
+                   available_features.all? { _1.instance_of?(BSD::Control::Feature) }
     end
 
     private
diff --git a/test/unprivileged/disable_feature_test.rb b/test/unprivileged/disable_feature_test.rb
index f843e08..1757f9b 100644
--- a/test/unprivileged/disable_feature_test.rb
+++ b/test/unprivileged/disable_feature_test.rb
@@ -2,20 +2,12 @@
 
 require_relative "../setup"
 module BSD::Control
-  class DisableFeatureTest < Test::Unit::TestCase
-    require "fileutils"
-    include FileUtils
-
+  class DisableFeatureTest < BSD::Control::Test
     def test_disable_pageexec_nonexistent_file
+      rm(file)
       assert_raises(Errno::ENOENT) do
         BSD::Control.feature(:pageexec).disable!(file)
       end
     end
-
-    private
-
-    def file
-      File.join(__dir__, "file")
-    end
   end
 end
diff --git a/test/unprivileged/enable_feature_test.rb b/test/unprivileged/enable_feature_test.rb
index c2be5b9..9182e26 100644
--- a/test/unprivileged/enable_feature_test.rb
+++ b/test/unprivileged/enable_feature_test.rb
@@ -2,23 +2,11 @@
 
 require_relative "../setup"
 module BSD::Control
-  class EnableFeatureTest < Test::Unit::TestCase
-    require "fileutils"
-    include FileUtils
-
-    def test_enable_feature_lacks_privileges
-      touch(file)
+  class EnableFeatureTest < BSD::Control::Test
+    def test_enable_feature_insufficient_permissions
       assert_raises(Errno::EPERM) do
         BSD::Control.feature(:pageexec).enable!(file)
       end
-    ensure
-      rm(file)
-    end
-
-    private
-
-    def file
-      File.join(__dir__, "file")
     end
   end
 end
diff --git a/test/unprivileged/feature_test.rb b/test/unprivileged/feature_test.rb
index 1fec4f9..1d68c1e 100644
--- a/test/unprivileged/feature_test.rb
+++ b/test/unprivileged/feature_test.rb
@@ -2,7 +2,7 @@
 
 require_relative "../setup"
 module BSD::Control
-  class FeatureTest < Test::Unit::TestCase
+  class FeatureTest < BSD::Control::Test
     def test_pageexec_feature
       assert_instance_of BSD::Control::Feature,
                          BSD::Control.feature(:pageexec)
diff --git a/test/unprivileged/sysdef_feature_test.rb b/test/unprivileged/sysdef_feature_test.rb
index 99c6018..78234a3 100644
--- a/test/unprivileged/sysdef_feature_test.rb
+++ b/test/unprivileged/sysdef_feature_test.rb
@@ -2,23 +2,11 @@
 
 require_relative "../setup"
 module BSD::Control
-  class SysDefTest < Test::Unit::TestCase
-    require "fileutils"
-    include FileUtils
-
-    def test_sysdef!_lacks_privileges
-      touch(file)
+  class SysDefTest < BSD::Control::Test
+    def test_sysdef!_insufficient_permissions
       assert_raises(Errno::EPERM) do
         BSD::Control.feature(:pageexec).sysdef!(file)
       end
-    ensure
-      rm(file)
-    end
-
-    private
-
-    def file
-      File.join(__dir__, "file")
     end
   end
 end