From d30b45ac945984ee44783bc32cd765e03bea9a84 Mon Sep 17 00:00:00 2001
From: noevents <noevents@users.noreply.github.com>
Date: Wed, 26 Jul 2017 20:54:45 +0300
Subject: [PATCH 1/2] fix with test coverage

---
 index.js       | 2 +-
 test/denque.js | 6 ++++++
 2 files changed, 7 insertions(+), 1 deletion(-)

diff --git a/index.js b/index.js
index 4b18732..a10b0d8 100644
--- a/index.js
+++ b/index.js
@@ -329,7 +329,7 @@ Denque.prototype.splice = function splice(index, count) {
       if(count === 0){
         removed = [];
         if(i != size){
-          this._tail = (i - 1 + len) & this._capacityMask;
+          this._tail = (this._head + i + len) & this._capacityMask;
         }
       } else {
         removed = this.remove(i, count);
diff --git a/test/denque.js b/test/denque.js
index 8b2eccf..7d67334 100644
--- a/test/denque.js
+++ b/test/denque.js
@@ -655,6 +655,12 @@ describe('Denque.prototype.splice', function () {
     b.unshift(1, 2, 3);
     b.splice(b.length,0, 17, 18, 19);
     assert.deepEqual(a.toArray(), b);
+    a.splice(18, 0, 18, 19);
+    b.splice(18, 0, 18, 19);
+    assert.deepEqual(a.toArray(), b);
+    a.splice(21, 0, 1, 2, 3, 4, 5, 6);
+    b.splice(21, 0, 1, 2, 3, 4, 5, 6);
+    assert.deepEqual(a.toArray(), b);
     assert.deepEqual(a.splice(a.length-1,2), b.splice(b.length-1,2)); //remove
     assert.deepEqual(a.toArray(), b);
   });

From 867d6922bbb53a42b2935064c57c4abec6e3cbec Mon Sep 17 00:00:00 2001
From: noevents <noevents@users.noreply.github.com>
Date: Wed, 26 Jul 2017 21:52:20 +0300
Subject: [PATCH 2/2] fix

---
 index.js | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/index.js b/index.js
index 3069e8b..29d12ee 100644
--- a/index.js
+++ b/index.js
@@ -328,7 +328,7 @@ Denque.prototype.splice = function splice(index, count) {
       }
       if (count === 0) {
         removed = [];
-        if(i != size){
+        if (i != size) {
           this._tail = (this._head + i + len) & this._capacityMask;
         }
       } else {