Adding upstream version 1.20.14.upstream/1.20.14upstream

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 42 insertions, 0 deletions

diff --git a/src/arena/arena_test.go b/src/arena/arena_test.go
new file mode 100644
index 0000000..017c33c
--- /dev/null
+++ b/src/arena/arena_test.go
@@ -0,0 +1,42 @@
+// Copyright 2022 The Go Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style
+// license that can be found in the LICENSE file.
+
+//go:build goexperiment.arenas
+
+package arena_test
+
+import (
+	"arena"
+	"testing"
+)
+
+type T1 struct {
+	n int
+}
+type T2 [1 << 20]byte // 1MiB
+
+func TestSmoke(t *testing.T) {
+	a := arena.NewArena()
+	defer a.Free()
+
+	tt := arena.New[T1](a)
+	tt.n = 1
+
+	ts := arena.MakeSlice[T1](a, 99, 100)
+	if len(ts) != 99 {
+		t.Errorf("Slice() len = %d, want 99", len(ts))
+	}
+	if cap(ts) != 100 {
+		t.Errorf("Slice() cap = %d, want 100", cap(ts))
+	}
+	ts[1].n = 42
+}
+
+func TestSmokeLarge(t *testing.T) {
+	a := arena.NewArena()
+	defer a.Free()
+	for i := 0; i < 10*64; i++ {
+		_ = arena.New[T2](a)
+	}
+}