Added CPU manager unit tests (none policy)

pkg/kubelet/cm/cpumanager/BUILD

-load("@io_bazel_rules_go//go:def.bzl", "go_library")
+load("@io_bazel_rules_go//go:def.bzl", "go_library", "go_test")
 
 go_library(
     name = "go_default_library",
     srcs = [
         "cpu_manager.go",
+        "fake_cpu_manager.go",
         "policy.go",
         "policy_none.go",
     ],
@@ -38,3 +39,22 @@ filegroup(
     tags = ["automanaged"],
     visibility = ["//visibility:public"],
 )
+
+go_test(
+    name = "go_default_test",
+    srcs = [
+        "cpu_manager_test.go",
+        "policy_none_test.go",
+    ],
+    library = ":go_default_library",
+    deps = [
+        "//pkg/kubelet/apis/cri/v1alpha1/runtime:go_default_library",
+        "//pkg/kubelet/cm/cpumanager/state:go_default_library",
+        "//pkg/kubelet/cm/cpuset:go_default_library",
+        "//vendor/k8s.io/api/core/v1:go_default_library",
+        "//vendor/k8s.io/apimachinery/pkg/api/resource:go_default_library",
+        "//vendor/k8s.io/apimachinery/pkg/apis/meta/v1:go_default_library",
+        "//vendor/k8s.io/apimachinery/pkg/runtime:go_default_library",
+        "//vendor/k8s.io/apimachinery/pkg/types:go_default_library",
+    ],
+)

pkg/kubelet/cm/cpumanager/fake_cpu_manager.go

+/*
+Copyright 2017 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 cpumanager
+
+import (
+	"github.com/golang/glog"
+	"k8s.io/api/core/v1"
+	"k8s.io/kubernetes/pkg/kubelet/cm/cpumanager/state"
+	"k8s.io/kubernetes/pkg/kubelet/status"
+)
+
+type fakeManager struct {
+	state state.State
+}
+
+func (m *fakeManager) Start(activePods ActivePodsFunc, podStatusProvider status.PodStatusProvider, containerRuntime runtimeService) {
+	glog.Info("[fake cpumanager] Start()")
+}
+
+func (m *fakeManager) Policy() Policy {
+	glog.Info("[fake cpumanager] Policy()")
+	return NewNonePolicy()
+}
+
+func (m *fakeManager) AddContainer(pod *v1.Pod, container *v1.Container, containerID string) error {
+	glog.Infof("[fake cpumanager] AddContainer (pod: %s, container: %s, container id: %s)", pod.Name, container.Name, containerID)
+	return nil
+}
+
+func (m *fakeManager) RemoveContainer(containerID string) error {
+	glog.Infof("[fake cpumanager] RemoveContainer (container id: %s)", containerID)
+	return nil
+}
+
+func (m *fakeManager) State() state.Reader {
+	return m.state
+}
+
+// NewFakeManager creates empty/fake cpu manager
+func NewFakeManager() Manager {
+	return &fakeManager{
+		state: state.NewMemoryState(),
+	}
+}

pkg/kubelet/cm/cpumanager/policy_none_test.go

+/*
+Copyright 2017 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 cpumanager
+
+import (
+	"testing"
+
+	"k8s.io/kubernetes/pkg/kubelet/cm/cpuset"
+)
+
+func TestNonePolicyName(t *testing.T) {
+	policy := &nonePolicy{}
+
+	policyName := policy.Name()
+	if policyName != "none" {
+		t.Errorf("NonePolicy Name() error. expected: none, returned: %v",
+			policyName)
+	}
+}
+
+func TestNonePolicyAdd(t *testing.T) {
+	policy := &nonePolicy{}
+
+	st := &mockState{
+		assignments:   map[string]cpuset.CPUSet{},
+		defaultCPUSet: cpuset.NewCPUSet(1, 2, 3, 4, 5, 6, 7),
+	}
+
+	testPod := makePod("1000m", "1000m")
+
+	container := &testPod.Spec.Containers[0]
+	err := policy.AddContainer(st, testPod, container, "fakeID")
+	if err != nil {
+		t.Errorf("NonePolicy AddContainer() error. expected no error but got: %v", err)
+	}
+}
+
+func TestNonePolicyRemove(t *testing.T) {
+	policy := &nonePolicy{}
+
+	st := &mockState{
+		assignments:   map[string]cpuset.CPUSet{},
+		defaultCPUSet: cpuset.NewCPUSet(1, 2, 3, 4, 5, 6, 7),
+	}
+
+	err := policy.RemoveContainer(st, "fakeID")
+	if err != nil {
+		t.Errorf("NonePolicy RemoveContainer() error. expected no error but got %v", err)
+	}
+}