diff --git a/clearing-parent/clearing-service/src/test/java/ru/spcex/clearing/statement/SdfGroupTest.java b/clearing-parent/clearing-service/src/test/java/ru/spcex/clearing/statement/SdfGroupTest.java
new file mode 100644
index 000000000..ebad9be06
--- /dev/null
+++ b/clearing-parent/clearing-service/src/test/java/ru/spcex/clearing/statement/SdfGroupTest.java
@@ -0,0 +1,20 @@
+package ru.spcex.clearing.statement;
+
+import org.junit.jupiter.api.Assertions;
+import org.junit.jupiter.api.Test;
+import ru.spcex.platform.enumeration.SdfTable;
+
+import java.util.Arrays;
+import java.util.List;
+
+class SdfGroupTest {
+    @Test
+    public void commonGroupsMustNotIntersect() {
+        List<SdfGroup> groups = Arrays.stream(SdfGroup.values())
+                .filter(g -> !g.name().startsWith("session"))
+                .toList();
+        List<SdfTable> tables = groups.stream().flatMap(g -> g.getGroup().stream()).toList();
+        List<SdfTable> uniq = groups.stream().flatMap(g -> g.getGroup().stream()).distinct().toList();
+        Assertions.assertEquals(tables.size(), uniq.size(), "common groups must not intersect");
+    }
+}
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