From a6b7e66e9a4bff4a721b73013697f0f0a4c2170e Mon Sep 17 00:00:00 2001
From: Preetha Appan <preetha@hashicorp.com>
Date: Tue, 25 Jul 2017 20:39:33 -0500
Subject: [PATCH] Removed redundant comments and unit test

---
 agent/consul/state/kvs.go      |  2 -
 agent/consul/state/kvs_test.go | 78 +---------------------------------
 2 files changed, 1 insertion(+), 79 deletions(-)

diff --git a/agent/consul/state/kvs.go b/agent/consul/state/kvs.go
index fbba471c1..909126cc4 100644
--- a/agent/consul/state/kvs.go
+++ b/agent/consul/state/kvs.go
@@ -429,8 +429,6 @@ func (s *Store) kvsDeleteTreeTxn(tx *memdb.Txn, idx uint64, prefix string) error
 		return fmt.Errorf("failed recursive  deleting kvs entry: %s", err)
 	}
 
-	// Update the index if the delete was successful.
-	// Missing prefixes don't result in an index update
 	if deleted {
 		if err := s.kvsGraveyard.InsertTxn(tx, prefix, idx); err != nil {
 			return fmt.Errorf("failed adding to graveyard: %s", err)
diff --git a/agent/consul/state/kvs_test.go b/agent/consul/state/kvs_test.go
index 6d5eca644..1b17d6585 100644
--- a/agent/consul/state/kvs_test.go
+++ b/agent/consul/state/kvs_test.go
@@ -1,7 +1,6 @@
 package state
 
 import (
-	"fmt"
 	"reflect"
 	"strings"
 	"testing"
@@ -1081,7 +1080,6 @@ func TestStateStore_Watches_PrefixDelete(t *testing.T) {
 		t.Fatalf("bad index: %d, expected %d", got, wantIndex)
 	}
 
-	ws = memdb.NewWatchSet()
 	// Set a different key to bump the index. This shouldn't fire the
 	// watch since there's a different prefix.
 	testSetKey(t, s, 8, "some/other/key", "")
@@ -1089,6 +1087,7 @@ func TestStateStore_Watches_PrefixDelete(t *testing.T) {
 	// Now ask for the index for a node within the prefix that was deleted
 	// We expect to get the max index in the tree
 	wantIndex = 8
+	ws = memdb.NewWatchSet()
 	got, _, err = s.KVSList(ws, "foo/bar/baz")
 	if err != nil {
 		t.Fatalf("err: %s", err)
@@ -1110,81 +1109,6 @@ func TestStateStore_Watches_PrefixDelete(t *testing.T) {
 	}
 }
 
-func TestStateStore_KVSDeleteTreePrefix(t *testing.T) {
-	s := testStateStore(t)
-
-	// Create kvs entries in the state store.
-	for i := 0; i < 120; i++ {
-		ind := uint64(i + 1)
-		key := "foo/bar" + fmt.Sprintf("%d", ind)
-		testSetKey(t, s, ind, key, "bar")
-	}
-	testSetKey(t, s, 121, "foo/zorp", "zorp")
-
-	// Calling tree deletion which affects nothing does not
-	// modify the table index.
-	if err := s.KVSDeleteTree(129, "bar"); err != nil {
-		t.Fatalf("err: %s", err)
-	}
-	if idx := s.maxIndex("kvs"); idx != 121 {
-		t.Fatalf("bad index: %d", idx)
-	}
-
-	// Call tree deletion with a nested prefix.
-	if err := s.KVSDeleteTree(122, "foo/bar"); err != nil {
-		t.Fatalf("err: %s", err)
-	}
-
-	// Check that all the matching keys were deleted
-	tx := s.db.Txn(false)
-	defer tx.Abort()
-
-	entries, err := tx.Get("kvs", "id")
-	if err != nil {
-		t.Fatalf("err: %s", err)
-	}
-
-	num := 0
-	for entry := entries.Next(); entry != nil; entry = entries.Next() {
-		if entry.(*structs.DirEntry).Key != "foo/zorp" {
-			t.Fatalf("unexpected kvs entry: %#v", entry)
-		}
-		num++
-	}
-
-	if num != 1 {
-		t.Fatalf("expected 1 key, got: %d", num)
-	}
-
-	// Index should be updated if modifications are made
-	if idx := s.maxIndex("kvs"); idx != 122 {
-		t.Fatalf("bad index: %d", idx)
-	}
-
-	// Check that the tombstones ware created and that prevents the index
-	// from sliding backwards.
-	idx, _, err := s.KVSList(nil, "foo")
-	if err != nil {
-		t.Fatalf("err: %s", err)
-	}
-	if idx != 122 {
-		t.Fatalf("bad index: %d", idx)
-	}
-
-	// Now reap the tombstones and watch the index revert to the remaining
-	// foo/zorp key's index.
-	if err := s.ReapTombstones(122); err != nil {
-		t.Fatalf("err: %s", err)
-	}
-	idx, _, err = s.KVSList(nil, "foo")
-	if err != nil {
-		t.Fatalf("err: %s", err)
-	}
-	if idx != 121 {
-		t.Fatalf("bad index: %d", idx)
-	}
-}
-
 func TestStateStore_KVSLockDelay(t *testing.T) {
 	s := testStateStore(t)