#2050 Adding possibility to render subgrapgs in different directions

cypress/integration/rendering/flowchart.spec.js

@@ -893,4 +893,26 @@ graph TD
       {htmlLabels: true, flowchart: {htmlLabels: true}, securityLevel: 'loose'}
     );
   });
+  it('2050: handling of different rendering direction in subgraphs', () => {
+    imgSnapshotTest(
+      `
+    flowchart LR
+
+      subgraph TOP
+        direction TB
+        subgraph B1
+            direction RL
+            i1 -->f1
+        end
+        subgraph B2
+            direction BT
+            i2 -->f2
+        end
+      end
+      A --> TOP --> B
+      B1 --> B2
+      `,
+      {htmlLabels: true, flowchart: {htmlLabels: true}, securityLevel: 'loose'}
+    );
+  });
 });