eventstore: boltdb (copied from lmdb)

2025-08-05 07:40:10 -03:00
parent 34225e5dfe
commit d79793c0f4
13 changed files with 1333 additions and 1 deletions
@@ -0,0 +1,67 @@
+package bolt
+
+import (
+	"testing"
+
+	"github.com/stretchr/testify/require"
+)
+
+func TestQuickselect(t *testing.T) {
+	{
+		its := iterators{
+			{last: 781},
+			{last: 900},
+			{last: 1},
+			{last: 81},
+			{last: 325},
+			{last: 781},
+			{last: 562},
+			{last: 81},
+			{last: 444},
+		}
+
+		its.quickselect(3)
+		require.ElementsMatch(t,
+			[]uint32{its[0].last, its[1].last, its[2].last},
+			[]uint32{900, 781, 781},
+		)
+	}
+
+	{
+		its := iterators{
+			{last: 781},
+			{last: 781},
+			{last: 900},
+			{last: 1},
+			{last: 87},
+			{last: 315},
+			{last: 789},
+			{last: 500},
+			{last: 812},
+			{last: 306},
+			{last: 612},
+			{last: 444},
+			{last: 59},
+			{last: 441},
+			{last: 901},
+			{last: 901},
+			{last: 2},
+			{last: 81},
+			{last: 325},
+			{last: 781},
+			{last: 562},
+			{last: 81},
+			{last: 326},
+			{last: 662},
+			{last: 444},
+			{last: 81},
+			{last: 444},
+		}
+
+		its.quickselect(6)
+		require.ElementsMatch(t,
+			[]uint32{its[0].last, its[1].last, its[2].last, its[3].last, its[4].last, its[5].last},
+			[]uint32{901, 900, 901, 781, 812, 789},
+		)
+	}
+}