Sync Zipper (#2873)

This updates the Zipper exercise to sync with the problem specifications.

Author: jagdish-15

exercises/practice/zipper/.meta/config.json

@@ -4,6 +4,7 @@
   ],
   "contributors": [
     "FridaTveit",
+    "jagdish-15",
     "jmrunkle",
     "lemoncurry",
     "msomji",

exercises/practice/zipper/.meta/tests.toml

@@ -1,6 +1,13 @@
-# This is an auto-generated file. Regular comments will be removed when this
-# file is regenerated. Regenerating will not touch any manually added keys,
-# so comments can be added in a "comment" key.
+# This is an auto-generated file.
+#
+# Regenerating this file via `configlet sync` will:
+# - Recreate every `description` key/value pair
+# - Recreate every `reimplements` key/value pair, where they exist in problem-specifications
+# - Remove any `include = true` key/value pair (an omitted `include` key implies inclusion)
+# - Preserve any other key/value pair
+#
+# As user-added comments (using the # character) will be removed when this file
+# is regenerated, comments can be added via a `comment` key.
 
 [771c652e-0754-4ef0-945c-0675d12ef1f5]
 description = "data is retained"
@@ -20,6 +27,9 @@ description = "traversing up from top"
 [b8505f6a-aed4-4c2e-824f-a0ed8570d74b]
 description = "left, right, and up"
 
+[b9aa8d54-07b7-4bfd-ab6b-7ff7f35930b6]
+description = "test ability to descend multiple levels and return"
+
 [47df1a27-b709-496e-b381-63a03b82ea5f]
 description = "set_value"
 

exercises/practice/zipper/src/test/java/ZipperTest.java

@@ -60,6 +60,13 @@ public void testLeftRightAndUp() {
         assertThat(zipper.left.up.right.up.left.right.getValue()).isEqualTo(3);
     }
 
+    @Disabled("Remove to run test")
+    @Test
+    public void testAbilityToReturnAfterMultipleLevelDescend() {
+        zipper = binaryTree.getRoot();
+        assertThat(zipper.left.right.up.up.getValue()).isEqualTo(1);
+    }
+
     @Disabled("Remove to run test")
     @Test
     public void testSetValue() {