Add a benchmark for quickSelect

1 files changed, 22 insertions, 0 deletions

diff --git a/bench_test.go b/bench_test.go
new file mode 100644
index 0000000..1047865
--- /dev/null
+++ b/bench_test.go
@@ -0,0 +1,22 @@
+package main
+
+import (
+	"cmp"
+	"math/rand/v2"
+	"testing"
+)
+
+func BenchmarkQuickSelect(b *testing.B) {
+	r := rand.New(rand.NewPCG(0, 0))
+	testSlice := make([]int, 3840*2160)
+	for i := range testSlice {
+		testSlice[i] = r.Int()
+	}
+	myTestSlice := make([]int, len(testSlice))
+	for b.Loop() {
+		b.StopTimer()
+		copy(myTestSlice, testSlice)
+		b.StartTimer()
+		quickSelect(myTestSlice, len(myTestSlice)/2, cmp.Compare)
+	}
+}