diff --git a/python/src/com/jetbrains/python/testing/PythonUnitTestUtil.java b/python/src/com/jetbrains/python/testing/PythonUnitTestUtil.java
new file mode 100644
index 000000000000..217a60ccea91
--- /dev/null
+++ b/python/src/com/jetbrains/python/testing/PythonUnitTestUtil.java
@@ -0,0 +1,27 @@
+// Copyright 2000-2021 JetBrains s.r.o. and contributors. Use of this source code is governed by the Apache 2.0 license that can be found in the LICENSE file.
+package com.jetbrains.python.testing;
+
+import com.intellij.openapi.diagnostic.Logger;
+import com.intellij.util.ThreeState;
+import com.jetbrains.python.psi.PyClass;
+import com.jetbrains.python.psi.types.TypeEvalContext;
+import org.jetbrains.annotations.ApiStatus;
+import org.jetbrains.annotations.NotNull;
+import org.jetbrains.annotations.Nullable;
+
+public final class PythonUnitTestUtil {
+  private PythonUnitTestUtil() {
+  }
+
+  /**
+   * @deprecated use {@link PythonUnitTestDetectorsBasedOnSettings#isTestClass(PyClass, ThreeState, TypeEvalContext)}
+   */
+  @Deprecated
+  @ApiStatus.ScheduledForRemoval(inVersion = "2021.1")
+  public static boolean isTestClass(@NotNull final PyClass cls,
+                                    @NotNull final ThreeState testCaseClassRequired,
+                                    @Nullable TypeEvalContext context) {
+    Logger.getInstance(PythonUnitTestUtil.class).warn("Please to not use deprecated class "  + PythonUnitTestUtil.class.getCanonicalName());
+    return PythonUnitTestDetectorsBasedOnSettings.isTestClass(cls, testCaseClassRequired, context);
+  }
+}