kubelet: enable qos-level memory request reservation

pkg/kubelet/cm/cgroup_manager_test.go

@@ -0,0 +1,83 @@
+// +build linux
+
+/*
+Copyright 2016 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 cm
+
+import (
+	"reflect"
+	"testing"
+
+	"k8s.io/kubernetes/pkg/api/v1"
+	"k8s.io/kubernetes/pkg/apis/componentconfig"
+)
+
+func Test(t *testing.T) {
+	tests := []struct {
+		input    string
+		expected *map[v1.ResourceName]int64
+	}{
+		{
+			input:    "memory",
+			expected: nil,
+		},
+		{
+			input:    "memory=a",
+			expected: nil,
+		},
+		{
+			input:    "memory=a%",
+			expected: nil,
+		},
+		{
+			input:    "memory=200%",
+			expected: nil,
+		},
+		{
+			input: "memory=0%",
+			expected: &map[v1.ResourceName]int64{
+				v1.ResourceMemory: 0,
+			},
+		},
+		{
+			input: "memory=100%",
+			expected: &map[v1.ResourceName]int64{
+				v1.ResourceMemory: 100,
+			},
+		},
+		{
+			// need to change this when CPU is added as a supported resource
+			input:    "memory=100%,cpu=50%",
+			expected: nil,
+		},
+	}
+	for _, test := range tests {
+		m := componentconfig.ConfigurationMap{}
+		m.Set(test.input)
+		actual, err := ParseQOSReserved(m)
+		if actual != nil && test.expected == nil {
+			t.Errorf("Unexpected success, input: %v, expected: %v, actual: %v, err: %v", test.input, test.expected, actual, err)
+		}
+		if actual == nil && test.expected != nil {
+			t.Errorf("Unexpected failure, input: %v, expected: %v, actual: %v, err: %v", test.input, test.expected, actual, err)
+		}
+		if (actual == nil && test.expected == nil) || reflect.DeepEqual(*actual, *test.expected) {
+			continue
+		}
+		t.Errorf("Unexpected result, input: %v, expected: %v, actual: %v, err: %v", test.input, test.expected, actual, err)
+	}
+}