virtcontainers: Initial import

This is a virtcontainers 1.0.8 import into Kata Containers runtime.

virtcontainers is a Go library designed to manage hardware virtualized
pods and containers. It is the core Clear Containers framework and will
become the core Kata Containers framework, as discussed at
https://github.com/kata-containers/runtime/issues/33

Some more more pointers:

virtcontainers README, including some design and architecure notes:
https://github.com/containers/virtcontainers/blob/master/README.md

virtcontainers 1.0 API:
https://github.com/containers/virtcontainers/blob/master/documentation/api/1.0/api.md

Fixes #40

Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>

virtcontainers/spawner_test.go

@@ -0,0 +1,97 @@
+//
+// Copyright (c) 2016 Intel Corporation
+//
+// 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 virtcontainers
+
+import (
+	"reflect"
+	"testing"
+)
+
+var testSpawnerTypeList = []SpawnerType{
+	NsEnter,
+}
+
+func TestSpawnerTypeSet(t *testing.T) {
+	var s SpawnerType
+	var err error
+
+	for _, sType := range testSpawnerTypeList {
+		err = (&s).Set(string(sType))
+		if err != nil {
+			t.Fatal(err)
+		}
+
+		if s != sType {
+			t.Fatal()
+		}
+	}
+}
+
+func TestWrongSpawnerTypeSet(t *testing.T) {
+	var s SpawnerType
+
+	err := (&s).Set("noType")
+	if err == nil || s != "" {
+		t.Fatal()
+	}
+}
+
+func TestSpawnerTypeString(t *testing.T) {
+	for _, sType := range testSpawnerTypeList {
+		s := sType
+
+		result := (&s).String()
+		if result != string(NsEnter) {
+			t.Fatal()
+		}
+	}
+}
+
+func TestWrongSpawnerTypeString(t *testing.T) {
+	var s = SpawnerType("noType")
+
+	result := (&s).String()
+	if result != "" {
+		t.Fatal()
+	}
+}
+
+func testSpawnerNewSpawner(t *testing.T, sType SpawnerType, expected interface{}) {
+	spawner := newSpawner(sType)
+
+	if spawner == nil {
+		t.Fatal()
+	}
+
+	if reflect.DeepEqual(spawner, expected) == false {
+		t.Fatal()
+	}
+}
+
+func TestSpawnerNsEnterNewSpawner(t *testing.T) {
+	expectedOut := &nsenter{}
+
+	testSpawnerNewSpawner(t, NsEnter, expectedOut)
+}
+
+func TestWrongSpawnerNewSpawner(t *testing.T) {
+	spawner := newSpawner(SpawnerType("noType"))
+
+	if spawner != nil {
+		t.Fatal()
+	}
+}