Open source system call tests.

PiperOrigin-RevId: 224886231
Change-Id: I0fccb4d994601739d8b16b1d4e6b31f40297fb22

1 files changed, 40 insertions, 0 deletions

diff --git a/test/syscalls/linux/getcpu.cc b/test/syscalls/linux/getcpu.cc
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index 000000000..3a52b25fa
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+++ b/test/syscalls/linux/getcpu.cc
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+// Copyright 2018 Google LLC
+//
+// 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.
+
+#include <sched.h>
+
+#include "gtest/gtest.h"
+#include "absl/time/clock.h"
+#include "absl/time/time.h"
+#include "test/util/test_util.h"
+
+namespace gvisor {
+namespace testing {
+
+namespace {
+
+TEST(GetcpuTest, IsValidCpuStress) {
+  const int num_cpus = NumCPUs();
+  absl::Time deadline = absl::Now() + absl::Seconds(10);
+  while (absl::Now() < deadline) {
+    int cpu;
+    ASSERT_THAT(cpu = sched_getcpu(), SyscallSucceeds());
+    ASSERT_LT(cpu, num_cpus);
+  }
+}
+
+}  // namespace
+
+}  // namespace testing
+}  // namespace gvisor