From a7bd0a701289f8d808f93eaded266f6a1bab03ea Mon Sep 17 00:00:00 2001
From: Zach Koopmans <zkoopmans@google.com>
Date: Fri, 7 Aug 2020 13:28:11 -0700
Subject: Port Startup and Density Benchmarks.

PiperOrigin-RevId: 325497346
---
 test/benchmarks/tools/meminfo_test.go | 84 +++++++++++++++++++++++++++++++++++
 1 file changed, 84 insertions(+)
 create mode 100644 test/benchmarks/tools/meminfo_test.go

(limited to 'test/benchmarks/tools/meminfo_test.go')

diff --git a/test/benchmarks/tools/meminfo_test.go b/test/benchmarks/tools/meminfo_test.go
new file mode 100644
index 000000000..ba803540f
--- /dev/null
+++ b/test/benchmarks/tools/meminfo_test.go
@@ -0,0 +1,84 @@
+// Copyright 2020 The gVisor Authors.
+//
+// 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 tools
+
+import (
+	"testing"
+)
+
+// TestMeminfo checks the Meminfo parser on sample output.
+func TestMeminfo(t *testing.T) {
+	sampleData := `
+MemTotal:       16337408 kB
+MemFree:         3742696 kB
+MemAvailable:    9319948 kB
+Buffers:         1433884 kB
+Cached:          4607036 kB
+SwapCached:        45284 kB
+Active:          8288376 kB
+Inactive:        2685928 kB
+Active(anon):    4724912 kB
+Inactive(anon):  1047940 kB
+Active(file):    3563464 kB
+Inactive(file):  1637988 kB
+Unevictable:      326940 kB
+Mlocked:              48 kB
+SwapTotal:      33292284 kB
+SwapFree:       32865736 kB
+Dirty:               708 kB
+Writeback:             0 kB
+AnonPages:       4304204 kB
+Mapped:           975424 kB
+Shmem:            910292 kB
+KReclaimable:     744532 kB
+Slab:            1058448 kB
+SReclaimable:     744532 kB
+SUnreclaim:       313916 kB
+KernelStack:       25188 kB
+PageTables:        65300 kB
+NFS_Unstable:          0 kB
+Bounce:                0 kB
+WritebackTmp:          0 kB
+CommitLimit:    41460988 kB
+Committed_AS:   22859492 kB
+VmallocTotal:   34359738367 kB
+VmallocUsed:       63088 kB
+VmallocChunk:          0 kB
+Percpu:             9248 kB
+HardwareCorrupted:     0 kB
+AnonHugePages:    786432 kB
+ShmemHugePages:        0 kB
+ShmemPmdMapped:        0 kB
+FileHugePages:         0 kB
+FilePmdMapped:         0 kB
+HugePages_Total:       0
+HugePages_Free:        0
+HugePages_Rsvd:        0
+HugePages_Surp:        0
+Hugepagesize:       2048 kB
+Hugetlb:               0 kB
+DirectMap4k:     5408532 kB
+DirectMap2M:    11241472 kB
+DirectMap1G:     1048576 kB
+`
+	want := 9319948.0
+	got, err := parseMemAvailable(sampleData)
+	if err != nil {
+		t.Fatalf("parseMemAvailable failed: %v", err)
+	}
+	if got != want {
+		t.Fatalf("parseMemAvailable got %f, want %f", got, want)
+	}
+}
-- 
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