mirror of https://github.com/pulumi/pulumi.git
318 lines
7.6 KiB
Go
318 lines
7.6 KiB
Go
// Copyright 2016-2020, Pulumi Corporation.
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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package workspace
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import (
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"archive/tar"
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"bytes"
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"compress/gzip"
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"io"
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"os"
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"path/filepath"
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"runtime"
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"sync"
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"testing"
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"github.com/blang/semver"
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"github.com/pulumi/pulumi/sdk/v3/go/common/apitype"
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"github.com/stretchr/testify/assert"
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"github.com/stretchr/testify/require"
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)
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// createTGZ creates an in-memory tarball.
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func createTGZ(files map[string][]byte) ([]byte, error) {
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buffer := &bytes.Buffer{}
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gw := gzip.NewWriter(buffer)
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writer := tar.NewWriter(gw)
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for name, content := range files {
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if err := writer.WriteHeader(&tar.Header{
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Name: name,
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Size: int64(len(content)),
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Mode: 0o600,
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}); err != nil {
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return nil, err
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}
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if _, err := writer.Write(content); err != nil {
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return nil, err
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}
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}
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// Close the tar and gzip writers to flush and write footers.
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if err := writer.Close(); err != nil {
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return nil, err
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}
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if err := gw.Close(); err != nil {
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return nil, err
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}
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return buffer.Bytes(), nil
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}
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func prepareTestPluginTGZ(t *testing.T, files map[string][]byte) io.ReadCloser {
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if files == nil {
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files = map[string][]byte{}
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}
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// Add plugin binary to included files.
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if runtime.GOOS == "windows" {
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files["pulumi-resource-test.exe"] = nil
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} else {
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files["pulumi-resource-test"] = nil
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}
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tgz, err := createTGZ(files)
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require.NoError(t, err)
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return io.NopCloser(bytes.NewReader(tgz))
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}
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func prepareTestDir(t *testing.T, files map[string][]byte) (string, io.ReadCloser, PluginSpec) {
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tarball := prepareTestPluginTGZ(t, files)
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dir := t.TempDir()
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v1 := semver.MustParse("0.1.0")
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plugin := PluginSpec{
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Name: "test",
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Kind: apitype.ResourcePlugin,
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Version: &v1,
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PluginDir: dir,
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}
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return dir, tarball, plugin
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}
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func assertPluginInstalled(t *testing.T, dir string, plugin PluginSpec) PluginInfo {
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info, err := os.Stat(filepath.Join(dir, plugin.Dir()))
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assert.NoError(t, err)
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assert.True(t, info.IsDir())
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file := filepath.Join(dir, plugin.Dir(), plugin.File())
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if runtime.GOOS == "windows" {
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file += ".exe"
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}
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info, err = os.Stat(file)
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assert.NoError(t, err)
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assert.False(t, info.IsDir())
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_, err = os.Stat(filepath.Join(dir, plugin.Dir()+".partial"))
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assert.Truef(t, os.IsNotExist(err), "err was not IsNotExists, but was %s", err)
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assert.True(t, HasPlugin(plugin))
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has, err := HasPluginGTE(plugin)
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assert.NoError(t, err)
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assert.True(t, has)
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skipMetadata := true
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plugins, err := getPlugins(dir, skipMetadata)
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assert.NoError(t, err)
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require.Equal(t, 1, len(plugins))
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assert.Equal(t, plugin.Name, plugins[0].Name)
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assert.Equal(t, plugin.Kind, plugins[0].Kind)
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assert.Equal(t, *plugin.Version, *plugins[0].Version)
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return plugins[0]
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}
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func testDeletePlugin(t *testing.T, plugin PluginInfo) {
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paths := []string{
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plugin.Path,
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plugin.Path + ".partial",
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plugin.Path + ".lock",
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}
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anyPresent := false
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for _, path := range paths {
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_, err := os.Stat(path)
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if !os.IsNotExist(err) {
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anyPresent = true
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}
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}
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assert.True(t, anyPresent, "None of the expected plugin files were present before Delete")
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err := plugin.Delete()
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assert.NoError(t, err)
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for _, path := range paths {
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_, err := os.Stat(path)
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assert.Truef(t, os.IsNotExist(err), "err was not IsNotExists, but was %s", err)
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}
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}
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func testPluginInstall(t *testing.T, expectedDir string, files map[string][]byte) {
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// Skip during short test runs since this test involves downloading dependencies.
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if testing.Short() {
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t.Skip("Skipped in short test run")
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}
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dir, tarball, plugin := prepareTestDir(t, files)
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err := plugin.Install(tarball, false)
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assert.NoError(t, err)
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pluginInfo := assertPluginInstalled(t, dir, plugin)
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info, err := os.Stat(filepath.Join(dir, plugin.Dir(), expectedDir))
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assert.NoError(t, err)
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assert.True(t, info.IsDir())
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testDeletePlugin(t, pluginInfo)
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}
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func TestInstallNoDeps(t *testing.T) {
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t.Parallel()
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name := "foo.txt"
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content := []byte("hello\n")
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dir, tarball, plugin := prepareTestDir(t, map[string][]byte{name: content})
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err := plugin.Install(tarball, false)
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require.NoError(t, err)
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pluginInfo := assertPluginInstalled(t, dir, plugin)
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b, err := os.ReadFile(filepath.Join(dir, plugin.Dir(), name))
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require.NoError(t, err)
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assert.Equal(t, content, b)
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testDeletePlugin(t, pluginInfo)
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}
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func TestReinstall(t *testing.T) {
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t.Parallel()
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name := "foo.txt"
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content := []byte("hello\n")
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dir, tarball, plugin := prepareTestDir(t, map[string][]byte{name: content})
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err := plugin.Install(tarball, false)
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require.NoError(t, err)
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assertPluginInstalled(t, dir, plugin)
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b, err := os.ReadFile(filepath.Join(dir, plugin.Dir(), name))
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require.NoError(t, err)
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assert.Equal(t, content, b)
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content = []byte("world\n")
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tarball = prepareTestPluginTGZ(t, map[string][]byte{name: content})
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err = plugin.Install(tarball, true)
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require.NoError(t, err)
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pluginInfo := assertPluginInstalled(t, dir, plugin)
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b, err = os.ReadFile(filepath.Join(dir, plugin.Dir(), name))
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require.NoError(t, err)
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assert.Equal(t, content, b)
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testDeletePlugin(t, pluginInfo)
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}
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func TestConcurrentInstalls(t *testing.T) {
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t.Parallel()
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name := "foo.txt"
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content := []byte("hello\n")
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dir, tarball, plugin := prepareTestDir(t, map[string][]byte{name: content})
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assertSuccess := func() PluginInfo {
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pluginInfo := assertPluginInstalled(t, dir, plugin)
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b, err := os.ReadFile(filepath.Join(dir, plugin.Dir(), name))
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assert.NoError(t, err)
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assert.Equal(t, content, b)
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return pluginInfo
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}
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// Run several installs concurrently.
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const iterations = 12
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var wg sync.WaitGroup
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for i := 0; i < iterations; i++ {
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wg.Add(1)
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go func() {
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defer wg.Done()
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err := plugin.Install(tarball, false)
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assert.NoError(t, err)
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assertSuccess()
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}()
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}
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wg.Wait()
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pluginInfo := assertSuccess()
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testDeletePlugin(t, pluginInfo)
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}
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func TestInstallCleansOldFiles(t *testing.T) {
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t.Parallel()
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dir, tarball, plugin := prepareTestDir(t, nil)
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// Leftover temp dirs.
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tempDir1, err := os.MkdirTemp(dir, plugin.Dir()+".tmp")
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assert.NoError(t, err)
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tempDir2, err := os.MkdirTemp(dir, plugin.Dir()+".tmp")
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assert.NoError(t, err)
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tempDir3, err := os.MkdirTemp(dir, plugin.Dir()+".tmp")
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assert.NoError(t, err)
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// Leftover partial file.
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partialPath := filepath.Join(dir, plugin.Dir()+".partial")
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err = os.WriteFile(partialPath, nil, 0o600)
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assert.NoError(t, err)
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err = plugin.Install(tarball, false)
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assert.NoError(t, err)
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pluginInfo := assertPluginInstalled(t, dir, plugin)
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// Verify leftover files were removed.
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for _, path := range []string{tempDir1, tempDir2, tempDir3, partialPath} {
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_, err := os.Stat(path)
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assert.Truef(t, os.IsNotExist(err), "err was not IsNotExists, but was %s", err)
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}
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testDeletePlugin(t, pluginInfo)
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}
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func TestGetPluginsSkipsPartial(t *testing.T) {
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t.Parallel()
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dir, tarball, plugin := prepareTestDir(t, nil)
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err := plugin.Install(tarball, false)
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assert.NoError(t, err)
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err = os.WriteFile(filepath.Join(dir, plugin.Dir()+".partial"), nil, 0o600)
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assert.NoError(t, err)
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assert.False(t, HasPlugin(plugin))
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has, err := HasPluginGTE(plugin)
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assert.NoError(t, err)
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assert.False(t, has)
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skipMetadata := true
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plugins, err := getPlugins(dir, skipMetadata)
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require.NoError(t, err)
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assert.Equal(t, 0, len(plugins))
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}
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