pedigree looking for child to root is empty

vextorspace · Jul 15, 2024 · c91d2cf · c91d2cf
1 parent 70308b5
commit c91d2cf
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Showing 2 changed files with 19 additions and 1 deletion.
diff --git a/composeApp/src/commonMain/kotlin/model/visitors/PedigreeFinder.kt b/composeApp/src/commonMain/kotlin/model/visitors/PedigreeFinder.kt
@@ -2,10 +2,12 @@ package model.visitors
 
 import model.Item
 
-class PedigreeFinder(rootItem: Item) {
+class PedigreeFinder(val rootItem: Item) {
     private val familyTree = mutableListOf<Item>()
 
     fun findPedigree(item: Item): List<Item> {
+        if(item != rootItem)
+            return emptyList()
         return listOf(item)
     }
 }
diff --git a/composeApp/src/commonTest/kotlin/model/visitors/PedigreeFinderTest.kt b/composeApp/src/commonTest/kotlin/model/visitors/PedigreeFinderTest.kt
@@ -1,5 +1,6 @@
 package model.visitors
 
+import io.kotest.matchers.collections.shouldBeEmpty
 import io.kotest.matchers.collections.shouldContainExactly
 import model.Item
 import kotlin.test.Test
@@ -19,4 +20,19 @@ class PedigreeFinderTest {
         pedigree.shouldContainExactly(root)
     }
 
+    @Test
+    fun `looking for pedigree backwards returns empty list`() {
+        // Given
+        val root = Item("Root")
+        val child = Item("Child")
+        root.add(child)
+
+        val finder = PedigreeFinder(child)
+
+        // When
+        val pedigree = finder.findPedigree(root)
+
+        // Then
+        pedigree.shouldBeEmpty()
+    }
 }