1 files changed, 44 insertions, 0 deletions
diff --git a/pkg/sentry/kernel/sched/cpuset_test.go b/pkg/sentry/kernel/sched/cpuset_test.go
new file mode 100644
index 000000000..8a6e12958
--- /dev/null
+++ b/pkg/sentry/kernel/sched/cpuset_test.go
@@ -0,0 +1,44 @@
+// Copyright 2018 Google Inc.
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+package sched
+
+import (
+	"testing"
+)
+
+func TestNumCPUs(t *testing.T) {
+	for i := uint(0); i < 1024; i++ {
+		c := NewCPUSet(i)
+		for j := uint(0); j < i; j++ {
+			c.Set(j)
+		}
+		n := c.NumCPUs()
+		if n != i {
+			t.Errorf("got wrong number of cpus %d, want %d", n, i)
+		}
+	}
+}
+
+func TestClearAbove(t *testing.T) {
+	const n = 1024
+	c := NewFullCPUSet(n)
+	for i := uint(0); i < n; i++ {
+		cpu := n - i
+		c.ClearAbove(cpu)
+		if got := c.NumCPUs(); got != cpu {
+			t.Errorf("iteration %d: got %d cpus, wanted %d", i, got, cpu)
+		}
+	}
+}