flannel: add integration test suite

add new test for flannel plugin that delegates to the noop plugin and
validates that 'storeDir' can be configurable

plugins/meta/flannel/flannel_suite_test.go

@@ -0,0 +1,66 @@
+// Copyright 2015 CNI 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 main_test
+
+import (
+	"encoding/json"
+	"fmt"
+	"path/filepath"
+
+	. "github.com/onsi/ginkgo"
+	. "github.com/onsi/gomega"
+	"github.com/onsi/gomega/gexec"
+
+	"testing"
+)
+
+func TestFlannel(t *testing.T) {
+	RegisterFailHandler(Fail)
+	RunSpecs(t, "Flannel Suite")
+}
+
+const flannelPackage = "github.com/containernetworking/cni/plugins/meta/flannel"
+const noopPackage = "github.com/containernetworking/cni/plugins/test/noop"
+
+var paths testPaths
+
+type testPaths struct {
+	PathToPlugin string
+	CNIPath      string
+}
+
+var _ = SynchronizedBeforeSuite(func() []byte {
+	noopBin, err := gexec.Build(noopPackage)
+	Expect(err).NotTo(HaveOccurred())
+	noopDir, _ := filepath.Split(noopBin)
+
+	pathToPlugin, err := gexec.Build(flannelPackage)
+	Expect(err).NotTo(HaveOccurred())
+	flannelDir, _ := filepath.Split(pathToPlugin)
+
+	paths := testPaths{
+		PathToPlugin: pathToPlugin,
+		CNIPath:      fmt.Sprintf("%s:%s", flannelDir, noopDir),
+	}
+
+	data, err := json.Marshal(paths)
+	Expect(err).NotTo(HaveOccurred())
+	return data
+}, func(data []byte) {
+	Expect(json.Unmarshal(data, &paths)).To(Succeed())
+})
+
+var _ = SynchronizedAfterSuite(func() {}, func() {
+	gexec.CleanupBuildArtifacts()
+})