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// Copyright 2016 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 invoke_test
import (
"fmt"
"io/ioutil"
"os"
"path/filepath"
"strings"
"github.com/containernetworking/cni/pkg/invoke"
. "github.com/onsi/ginkgo"
. "github.com/onsi/gomega"
)
var _ = Describe("FindInPath", func() {
var (
multiplePaths []string
pluginName string
plugin2NameWithExt string
plugin2NameWithoutExt string
pluginDir string
anotherTempDir string
)
BeforeEach(func() {
tempDir, err := ioutil.TempDir("", "cni-find")
Expect(err).NotTo(HaveOccurred())
plugin, err := ioutil.TempFile(tempDir, "a-cni-plugin")
Expect(err).NotTo(HaveOccurred())
plugin2Name := "a-plugin-with-extension" + invoke.ExecutableFileExtensions[0]
plugin2, err := os.Create(filepath.Join(tempDir, plugin2Name))
Expect(err).NotTo(HaveOccurred())
anotherTempDir, err = ioutil.TempDir("", "nothing-here")
Expect(err).NotTo(HaveOccurred())
multiplePaths = []string{anotherTempDir, tempDir}
pluginDir, pluginName = filepath.Split(plugin.Name())
_, plugin2NameWithExt = filepath.Split(plugin2.Name())
plugin2NameWithoutExt = strings.Split(plugin2NameWithExt, ".")[0]
})
AfterEach(func() {
os.RemoveAll(pluginDir)
os.RemoveAll(anotherTempDir)
})
Context("when multiple paths are provided", func() {
It("returns only the path to the plugin", func() {
pluginPath, err := invoke.FindInPath(pluginName, multiplePaths)
Expect(err).NotTo(HaveOccurred())
Expect(pluginPath).To(Equal(filepath.Join(pluginDir, pluginName)))
})
})
Context("when a plugin name without its file name extension is provided", func() {
It("returns the path to the plugin, including its extension", func() {
pluginPath, err := invoke.FindInPath(plugin2NameWithoutExt, multiplePaths)
Expect(err).NotTo(HaveOccurred())
Expect(pluginPath).To(Equal(filepath.Join(pluginDir, plugin2NameWithExt)))
})
})
Context("when an error occurs", func() {
Context("when no paths are provided", func() {
It("returns an error noting no paths were provided", func() {
_, err := invoke.FindInPath(pluginName, []string{})
Expect(err).To(MatchError("no paths provided"))
})
})
Context("when no plugin is provided", func() {
It("returns an error noting the plugin name wasn't found", func() {
_, err := invoke.FindInPath("", multiplePaths)
Expect(err).To(MatchError("no plugin name provided"))
})
})
Context("when the plugin cannot be found", func() {
It("returns an error noting the path", func() {
pathsWithNothing := []string{anotherTempDir}
_, err := invoke.FindInPath(pluginName, pathsWithNothing)
Expect(err).To(MatchError(fmt.Sprintf("failed to find plugin %q in path %s", pluginName, pathsWithNothing)))
})
})
Context("When the plugin contains a directory separator", func() {
It("returns an error", func() {
bogusPlugin := ".." + string(os.PathSeparator) + "pluginname"
_, err := invoke.FindInPath(bogusPlugin, []string{anotherTempDir})
Expect(err).To(MatchError("invalid plugin name: " + bogusPlugin))
})
})
})
})
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