"Contains Duplicate III" medium task No 220 accepted solution

220-contains-duplicate-3_test.go

@@ -0,0 +1,12 @@
+package main
+
+import (
+	"github.com/stretchr/testify/assert"
+	"testing"
+)
+
+func TestContainsNearbyAlmostDuplicate(t *testing.T) {
+	assert.False(t, ContainsNearbyAlmostDuplicate([]int{1, 5, 9, 1, 5, 9}, 2, 3))
+	assert.True(t, ContainsNearbyAlmostDuplicate([]int{1, 2, 3, 1}, 3, 0))
+	assert.True(t, ContainsNearbyAlmostDuplicate([]int{1, 0, 1, 1}, 1, 2))
+}