From b276a3c7ab2b1b479348e0cb4addb523421a82dc Mon Sep 17 00:00:00 2001
From: Arijit Das <arijitad.in@gmail.com>
Date: Tue, 2 Nov 2021 07:33:20 +0530
Subject: [PATCH] Add error errRangeDoesNotExist.

---
 pkg/api_test.go    | 2 +-
 pkg/range_queue.go | 5 +++--
 2 files changed, 4 insertions(+), 3 deletions(-)

diff --git a/pkg/api_test.go b/pkg/api_test.go
index 930b71d..352ad70 100644
--- a/pkg/api_test.go
+++ b/pkg/api_test.go
@@ -69,7 +69,7 @@ func TestRemoveRange(t *testing.T) {
 			name:     "invalid block range range",
 			start:    0,
 			stop:     5,
-			expected: errEmptyQueue,
+			expected: errRangeDoesNotExist,
 		},
 		{
 			name:     "valid block range",
diff --git a/pkg/range_queue.go b/pkg/range_queue.go
index f064e69..8d2ba36 100644
--- a/pkg/range_queue.go
+++ b/pkg/range_queue.go
@@ -6,7 +6,8 @@ import (
 )
 
 var (
-	errEmptyQueue = errors.New("queue is empty")
+	errEmptyQueue        = errors.New("queue is empty")
+	errRangeDoesNotExist = errors.New("range does not exist in queue")
 )
 
 type blockRangeQueue struct {
@@ -38,7 +39,7 @@ func (q *blockRangeQueue) search(rngReq RangeRequest) (int, error) {
 		}
 	}
 
-	return 0, errEmptyQueue
+	return 0, errRangeDoesNotExist
 }
 
 func (q *blockRangeQueue) get() []RangeRequest {