Add unit tests for windows stats

pkg/kubelet/server/stats/BUILD

@@ -8,6 +8,8 @@ go_library(
         "handler.go",
         "resource_analyzer.go",
         "summary.go",
+        "summary_sys_containers.go",
+        "summary_sys_containers_windows.go",
         "volume_stat_calculator.go",
     ],
     importpath = "k8s.io/kubernetes/pkg/kubelet/server/stats",
@@ -32,20 +34,65 @@ go_test(
     name = "go_default_test",
     srcs = [
         "summary_test.go",
+        "summary_windows_test.go",
         "volume_stat_calculator_test.go",
     ],
     embed = [":go_default_library"],
     deps = [
         "//pkg/kubelet/apis/stats/v1alpha1:go_default_library",
-        "//pkg/kubelet/cm:go_default_library",
         "//pkg/kubelet/server/stats/testing:go_default_library",
         "//pkg/volume:go_default_library",
         "//staging/src/k8s.io/api/core/v1:go_default_library",
         "//staging/src/k8s.io/apimachinery/pkg/api/resource:go_default_library",
         "//staging/src/k8s.io/apimachinery/pkg/apis/meta/v1:go_default_library",
-        "//vendor/github.com/google/gofuzz:go_default_library",
         "//vendor/github.com/stretchr/testify/assert:go_default_library",
-    ],
+    ] + select({
+        "@io_bazel_rules_go//go/platform:android": [
+            "//pkg/kubelet/cm:go_default_library",
+            "//vendor/github.com/google/gofuzz:go_default_library",
+        ],
+        "@io_bazel_rules_go//go/platform:darwin": [
+            "//pkg/kubelet/cm:go_default_library",
+            "//vendor/github.com/google/gofuzz:go_default_library",
+        ],
+        "@io_bazel_rules_go//go/platform:dragonfly": [
+            "//pkg/kubelet/cm:go_default_library",
+            "//vendor/github.com/google/gofuzz:go_default_library",
+        ],
+        "@io_bazel_rules_go//go/platform:freebsd": [
+            "//pkg/kubelet/cm:go_default_library",
+            "//vendor/github.com/google/gofuzz:go_default_library",
+        ],
+        "@io_bazel_rules_go//go/platform:linux": [
+            "//pkg/kubelet/cm:go_default_library",
+            "//vendor/github.com/google/gofuzz:go_default_library",
+        ],
+        "@io_bazel_rules_go//go/platform:nacl": [
+            "//pkg/kubelet/cm:go_default_library",
+            "//vendor/github.com/google/gofuzz:go_default_library",
+        ],
+        "@io_bazel_rules_go//go/platform:netbsd": [
+            "//pkg/kubelet/cm:go_default_library",
+            "//vendor/github.com/google/gofuzz:go_default_library",
+        ],
+        "@io_bazel_rules_go//go/platform:openbsd": [
+            "//pkg/kubelet/cm:go_default_library",
+            "//vendor/github.com/google/gofuzz:go_default_library",
+        ],
+        "@io_bazel_rules_go//go/platform:plan9": [
+            "//pkg/kubelet/cm:go_default_library",
+            "//vendor/github.com/google/gofuzz:go_default_library",
+        ],
+        "@io_bazel_rules_go//go/platform:solaris": [
+            "//pkg/kubelet/cm:go_default_library",
+            "//vendor/github.com/google/gofuzz:go_default_library",
+        ],
+        "@io_bazel_rules_go//go/platform:windows": [
+            "//pkg/kubelet/cm:go_default_library",
+            "//vendor/github.com/google/gofuzz:go_default_library",
+        ],
+        "//conditions:default": [],
+    }),
 )
 
 filegroup(

pkg/kubelet/server/stats/summary_test.go

@@ -1,3 +1,5 @@
+// +build !windows
+
 /*
 Copyright 2016 The Kubernetes Authors.
 

pkg/kubelet/server/stats/summary_windows_test.go

@@ -0,0 +1,112 @@
+// +build windows
+
+/*
+Copyright 2018 The Kubernetes 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 stats
+
+import (
+	"testing"
+	"time"
+
+	fuzz "github.com/google/gofuzz"
+	"github.com/stretchr/testify/assert"
+
+	"k8s.io/api/core/v1"
+	metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
+	statsapi "k8s.io/kubernetes/pkg/kubelet/apis/stats/v1alpha1"
+	"k8s.io/kubernetes/pkg/kubelet/cm"
+	statstest "k8s.io/kubernetes/pkg/kubelet/server/stats/testing"
+)
+
+func TestSummaryProvider(t *testing.T) {
+	var (
+		podStats       = []statsapi.PodStats{*getPodStats()}
+		imageFsStats   = getFsStats()
+		rootFsStats    = getFsStats()
+		node           = &v1.Node{ObjectMeta: metav1.ObjectMeta{Name: "test-node"}}
+		nodeConfig     = cm.NodeConfig{}
+		cgroupRoot     = "/kubepods"
+		cgroupStatsMap = map[string]struct {
+			cs *statsapi.ContainerStats
+			ns *statsapi.NetworkStats
+		}{
+			"/":     {cs: getContainerStats()},
+			"/pods": {cs: getContainerStats()},
+		}
+	)
+
+	assert := assert.New(t)
+
+	mockStatsProvider := new(statstest.StatsProvider)
+	mockStatsProvider.
+		On("GetNode").Return(node, nil).
+		On("GetNodeConfig").Return(nodeConfig).
+		On("GetPodCgroupRoot").Return(cgroupRoot).
+		On("ListPodStats").Return(podStats, nil).
+		On("ImageFsStats").Return(imageFsStats, nil).
+		On("RootFsStats").Return(rootFsStats, nil).
+		On("RlimitStats").Return(nil, nil).
+		On("GetCgroupStats", "/", true).Return(cgroupStatsMap["/"].cs, cgroupStatsMap["/"].ns, nil)
+
+	provider := NewSummaryProvider(mockStatsProvider)
+	summary, err := provider.Get(true)
+	assert.NoError(err)
+
+	assert.Equal(summary.Node.NodeName, "test-node")
+	assert.Equal(summary.Node.StartTime, cgroupStatsMap["/"].cs.StartTime)
+	assert.Equal(summary.Node.CPU, cgroupStatsMap["/"].cs.CPU)
+	assert.Equal(summary.Node.Memory, cgroupStatsMap["/"].cs.Memory)
+	assert.Equal(summary.Node.Network, cgroupStatsMap["/"].ns)
+	assert.Equal(summary.Node.Fs, rootFsStats)
+	assert.Equal(summary.Node.Runtime, &statsapi.RuntimeStats{ImageFs: imageFsStats})
+
+	assert.Equal(len(summary.Node.SystemContainers), 1)
+	assert.Equal(summary.Node.SystemContainers[0].Name, "pods")
+	assert.Equal(summary.Node.SystemContainers[0].CPU.UsageCoreNanoSeconds, podStats[0].CPU.UsageCoreNanoSeconds)
+	assert.Equal(summary.Node.SystemContainers[0].CPU.UsageNanoCores, podStats[0].CPU.UsageNanoCores)
+	assert.Equal(summary.Node.SystemContainers[0].Memory.WorkingSetBytes, podStats[0].Memory.WorkingSetBytes)
+	assert.Equal(summary.Node.SystemContainers[0].Memory.UsageBytes, podStats[0].Memory.UsageBytes)
+	assert.Equal(summary.Node.SystemContainers[0].Memory.AvailableBytes, podStats[0].Memory.AvailableBytes)
+	assert.Equal(summary.Pods, podStats)
+}
+
+func getFsStats() *statsapi.FsStats {
+	f := fuzz.New().NilChance(0)
+	v := &statsapi.FsStats{}
+	f.Fuzz(v)
+	return v
+}
+
+func getContainerStats() *statsapi.ContainerStats {
+	f := fuzz.New().NilChance(0)
+	v := &statsapi.ContainerStats{}
+	f.Fuzz(v)
+	return v
+}
+
+func getPodStats() *statsapi.PodStats {
+	containerStats := getContainerStats()
+	podStats := statsapi.PodStats{
+		PodRef:     statsapi.PodReference{Name: "test-pod", Namespace: "test-namespace", UID: "UID_test-pod"},
+		StartTime:  metav1.NewTime(time.Now()),
+		Containers: []statsapi.ContainerStats{*containerStats},
+		CPU:        containerStats.CPU,
+		Memory:     containerStats.Memory,
+	}
+
+	return &podStats
+}