Add Konsist test.

tests/konsist/src/test/kotlin/io/element/android/tests/konsist/KonsistClassNameTest.kt

@@ -20,6 +20,7 @@ import com.lemonappdev.konsist.api.ext.list.withoutName
 import com.lemonappdev.konsist.api.ext.list.withoutNameStartingWith
 import com.lemonappdev.konsist.api.verify.assertEmpty
 import com.lemonappdev.konsist.api.verify.assertTrue
+import io.element.android.libraries.architecture.BaseFlowNode
 import io.element.android.libraries.architecture.Presenter
 import org.junit.Test
 
@@ -44,6 +45,16 @@ class KonsistClassNameTest {
             }
     }
 
+    @Test
+    fun `Classes extending 'BaseFlowNode' should have 'FlowNode' suffix`() {
+        Konsist.scopeFromProject()
+            .classes()
+            .withAllParentsOf(BaseFlowNode::class)
+            .assertTrue {
+                it.name.endsWith("FlowNode")
+            }
+    }
+
     @Test
     fun `Classes extending 'PreviewParameterProvider' name MUST end with 'Provider' and MUST contain provided class name`() {
         Konsist.scopeFromProduction()