Implement CommonizerTarget isAncestorOf and isDescendentOf

2021-03-26 10:05:17 +01:00
parent 108debdcc9
commit 35e1f8a520
3 changed files with 45 additions and 6 deletions
@@ -0,0 +1,31 @@
+/*
+ * Copyright 2010-2021 JetBrains s.r.o. and Kotlin Programming Language contributors.
+ * Use of this source code is governed by the Apache 2.0 license that can be found in the license/LICENSE.txt file.
+ */
+
+package org.jetbrains.kotlin.commonizer
+
+import kotlin.test.Test
+import kotlin.test.assertFalse
+import kotlin.test.assertTrue
+
+class CommonizerTargetUtilsTest {
+
+    @Test
+    fun `isAncestorOf isDescendentOf`() {
+        val child = LeafCommonizerTarget("a")
+        val parent = SharedCommonizerTarget(LeafCommonizerTarget("a"))
+
+        assertTrue(child isDescendentOf parent, "Expected child isDescendent of parent")
+        assertTrue(parent isAncestorOf child, "Expected parent isAncestor of child")
+        assertFalse(child isDescendentOf child, "Expected same target not being descendent of itself")
+        assertFalse(parent isDescendentOf parent, "Expected same target not being descendent of itself")
+        assertFalse(LeafCommonizerTarget("b") isDescendentOf parent, "Expected orphan target not being descendent of parent")
+
+        val hierarchicalParent = SharedCommonizerTarget(parent, parseCommonizerTarget("((c, d), e)"))
+        assertTrue(child isDescendentOf hierarchicalParent, "Expected child being descendent of hierarchical parent")
+        assertTrue(hierarchicalParent isAncestorOf child, "Expected hierarchicalParent being ancestor of child")
+        assertTrue(parseCommonizerTarget("(c, d)") isDescendentOf hierarchicalParent)
+        assertTrue(LeafCommonizerTarget("e") isDescendentOf hierarchicalParent)
+    }
+}