diff --git a/test/integration/webdav/dmsf_webdav_options_test.rb b/test/integration/webdav/dmsf_webdav_options_test.rb
index 83821894..a082ba46 100644
--- a/test/integration/webdav/dmsf_webdav_options_test.rb
+++ b/test/integration/webdav/dmsf_webdav_options_test.rb
@@ -176,4 +176,14 @@ class DmsfWebdavOptionsTest < RedmineDmsf::Test::IntegrationTest
     assert_response :not_found
   end
 
+  def test_ms_redirector_workaround_dmsf
+    process :options, '/dmsf', params: nil, headers: @jsmith
+    assert_response :success
+  end
+
+  def test_ms_redirector_workaround_root
+    process :options, '/', params: nil, headers: @jsmith
+    assert_response :success
+  end
+
 end
diff --git a/test/integration/webdav/dmsf_webdav_propfind_test.rb b/test/integration/webdav/dmsf_webdav_propfind_test.rb
index e97c1147..b77862b7 100644
--- a/test/integration/webdav/dmsf_webdav_propfind_test.rb
+++ b/test/integration/webdav/dmsf_webdav_propfind_test.rb
@@ -177,4 +177,14 @@ class DmsfWebdavPropfindTest < RedmineDmsf::Test::IntegrationTest
     assert response.body.include?("<d:displayname>#{project1_new_name}</d:displayname>")
   end
 
+  def test_ms_redirector_workaround_dmsf
+    process :propfind, '/dmsf', params: nil, headers: @jsmith
+    assert_response :not_found
+  end
+
+  def test_ms_redirector_workaround_root
+    process :propfind, '/', params: nil, headers: @jsmith
+    assert_response :not_found
+  end
+
 end
\ No newline at end of file