Testing

pkg/kubelet/deviceplugin/endpoint_test.go

@@ -0,0 +1,125 @@
+/*
+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 deviceplugin
+
+import (
+	"testing"
+	"time"
+
+	"github.com/stretchr/testify/require"
+
+	pluginapi "k8s.io/kubernetes/pkg/kubelet/apis/deviceplugin/v1alpha1"
+)
+
+const (
+	socket = "/tmp/mock.sock"
+)
+
+func TestNewEndpoint(t *testing.T) {
+	devs := []*pluginapi.Device{
+		{ID: "ADeviceId", Health: pluginapi.Healthy},
+	}
+
+	p, e := esetup(t, devs, socket, "mock", func(n string, a, u, r []*pluginapi.Device) {})
+	defer ecleanup(t, p, e)
+}
+
+func TestList(t *testing.T) {
+	devs := []*pluginapi.Device{
+		{ID: "ADeviceId", Health: pluginapi.Healthy},
+	}
+
+	p, e := esetup(t, devs, socket, "mock", func(n string, a, u, r []*pluginapi.Device) {})
+	defer ecleanup(t, p, e)
+
+	_, err := e.list()
+	require.NoError(t, err)
+
+	e.mutex.Lock()
+	defer e.mutex.Unlock()
+
+	require.Len(t, e.devices, 1)
+
+	d, ok := e.devices[devs[0].ID]
+	require.True(t, ok)
+
+	require.Equal(t, d.ID, devs[0].ID)
+	require.Equal(t, d.Health, devs[0].Health)
+}
+
+func TestListAndWatch(t *testing.T) {
+	devs := []*pluginapi.Device{
+		{ID: "ADeviceId", Health: pluginapi.Healthy},
+		{ID: "AnotherDeviceId", Health: pluginapi.Healthy},
+	}
+
+	updated := []*pluginapi.Device{
+		{ID: "ADeviceId", Health: pluginapi.Unhealthy},
+		{ID: "AThirdDeviceId", Health: pluginapi.Healthy},
+	}
+
+	p, e := esetup(t, devs, socket, "mock", func(n string, a, u, r []*pluginapi.Device) {
+		require.Len(t, a, 1)
+		require.Len(t, u, 1)
+		require.Len(t, r, 1)
+
+		require.Equal(t, a[0].ID, updated[1].ID)
+
+		require.Equal(t, u[0].ID, updated[0].ID)
+		require.Equal(t, u[0].Health, updated[0].Health)
+
+		require.Equal(t, r[0].ID, devs[1].ID)
+	})
+	defer ecleanup(t, p, e)
+
+	s, err := e.list()
+	require.NoError(t, err)
+
+	go e.listAndWatch(s)
+	p.Update(updated)
+	time.Sleep(time.Second)
+
+	e.mutex.Lock()
+	defer e.mutex.Unlock()
+
+	require.Len(t, e.devices, 2)
+	for _, dref := range updated {
+		d, ok := e.devices[dref.ID]
+
+		require.True(t, ok)
+		require.Equal(t, d.ID, dref.ID)
+		require.Equal(t, d.Health, dref.Health)
+	}
+
+}
+
+func esetup(t *testing.T, devs []*pluginapi.Device, socket, resourceName string, callback MonitorCallback) (*MockDevicePlugin, *endpoint) {
+	p := NewMockDevicePlugin(devs, socket)
+
+	err := p.Start()
+	require.NoError(t, err)
+
+	e, err := newEndpoint(socket, "mock", func(n string, a, u, r []*pluginapi.Device) {})
+	require.NoError(t, err)
+
+	return p, e
+}
+
+func ecleanup(t *testing.T, p *MockDevicePlugin, e *endpoint) {
+	p.Stop()
+	e.stop()
+}