Check in gVisor.

PiperOrigin-RevId: 194583126
Change-Id: Ica1d8821a90f74e7e745962d71801c598c652463

1 files changed, 38 insertions, 0 deletions

diff --git a/pkg/cpuid/cpuid_parse_test.go b/pkg/cpuid/cpuid_parse_test.go
new file mode 100644
index 000000000..c4f52818c
--- /dev/null
+++ b/pkg/cpuid/cpuid_parse_test.go
@@ -0,0 +1,38 @@
+// 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 cpuid
+
+import (
+	"io/ioutil"
+	"strings"
+	"testing"
+)
+
+// TestHostFeatureFlags ensures that package cpuid recognizes all features
+// present on this host.
+func TestHostFeatureFlags(t *testing.T) {
+	cpuinfoBytes, _ := ioutil.ReadFile("/proc/cpuinfo")
+	cpuinfo := string(cpuinfoBytes)
+	t.Logf("Host cpu info:\n%s", cpuinfo)
+
+	for f := range HostFeatureSet().Set {
+		if f.flagString(false) == "" {
+			t.Errorf("Non-parsable feature: %v", f)
+		}
+		if s := f.flagString(true); !strings.Contains(cpuinfo, s) {
+			t.Errorf("Non-native flag: %v", f)
+		}
+	}
+}