271 lines
8.6 KiB
Go
271 lines
8.6 KiB
Go
package common
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import (
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"context"
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"crypto/sha1"
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"encoding/hex"
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"io/ioutil"
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"log"
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"net/http"
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"net/http/httptest"
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"os"
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"path/filepath"
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"reflect"
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"testing"
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"github.com/google/go-cmp/cmp"
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urlhelper "github.com/hashicorp/go-getter/helper/url"
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"github.com/hashicorp/packer/helper/multistep"
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"github.com/hashicorp/packer/packer/tmp"
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)
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var _ multistep.Step = new(StepDownload)
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func toSha1(in string) string {
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b := sha1.Sum([]byte(in))
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return hex.EncodeToString(b[:])
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}
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func abs(t *testing.T, path string) string {
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path, err := filepath.Abs(path)
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if err != nil {
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t.Fatal(err)
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}
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u, err := urlhelper.Parse(path)
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if err != nil {
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t.Fatal(err)
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}
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return u.String()
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}
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func TestStepDownload_Run(t *testing.T) {
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srvr := httptest.NewServer(http.FileServer(http.Dir("test-fixtures")))
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defer srvr.Close()
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cs := map[string]string{
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"/root/basic.txt": "f572d396fae9206628714fb2ce00f72e94f2258f",
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"/root/another.txt": "7c6e5dd1bacb3b48fdffba2ed096097eb172497d",
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}
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type fields struct {
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Checksum string
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ChecksumType string
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Description string
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ResultKey string
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TargetPath string
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Url []string
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Extension string
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}
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tests := []struct {
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name string
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fields fields
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want multistep.StepAction
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wantFiles []string
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}{
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{"Empty URL field passes",
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fields{Url: []string{}},
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multistep.ActionContinue,
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nil,
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},
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{"not passing a checksum passes",
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fields{Url: []string{abs(t, "./test-fixtures/root/another.txt")}},
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multistep.ActionContinue,
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[]string{
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toSha1(abs(t, "./test-fixtures/root/another.txt")),
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toSha1(abs(t, "./test-fixtures/root/another.txt")) + ".lock",
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},
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},
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{"double slashes on a local filesystem passes",
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fields{Url: []string{abs(t, "./test-fixtures/root//another.txt")}},
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multistep.ActionContinue,
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[]string{
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toSha1(abs(t, "./test-fixtures/root//another.txt")),
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toSha1(abs(t, "./test-fixtures/root//another.txt")) + ".lock",
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},
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},
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{"none checksum works, without a checksum",
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fields{Url: []string{abs(t, "./test-fixtures/root/another.txt")}, ChecksumType: "none"},
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multistep.ActionContinue,
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[]string{
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toSha1(abs(t, "./test-fixtures/root/another.txt")),
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toSha1(abs(t, "./test-fixtures/root/another.txt")) + ".lock",
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},
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},
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{"bad checksum removes file - checksum from string - no Checksum Type",
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fields{Extension: "txt", Url: []string{abs(t, "./test-fixtures/root/another.txt")}, Checksum: cs["/root/basic.txt"]},
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multistep.ActionHalt,
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[]string{
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toSha1(cs["/root/basic.txt"]) + ".txt.lock", // a lock file is created & deleted on mac for each download
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},
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},
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{"bad checksum removes file - checksum from string - Checksum Type",
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fields{Extension: "txt", Url: []string{abs(t, "./test-fixtures/root/another.txt")}, ChecksumType: "sha1", Checksum: cs["/root/basic.txt"]},
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multistep.ActionHalt,
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[]string{
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toSha1(cs["/root/basic.txt"]) + ".txt.lock",
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},
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},
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{"bad checksum removes file - checksum from url - Checksum Type",
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fields{Extension: "txt", Url: []string{abs(t, "./test-fixtures/root/basic.txt")}, Checksum: srvr.URL + "/root/another.txt.sha1sum", ChecksumType: "file"},
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multistep.ActionHalt,
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[]string{
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toSha1(srvr.URL+"/root/another.txt.sha1sum") + ".txt.lock",
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},
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},
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{"successfull http dl - checksum from http file - parameter",
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fields{Extension: "txt", Url: []string{srvr.URL + "/root/another.txt"}, Checksum: srvr.URL + "/root/another.txt.sha1sum", ChecksumType: "file"},
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multistep.ActionContinue,
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[]string{
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toSha1(srvr.URL+"/root/another.txt.sha1sum") + ".txt",
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toSha1(srvr.URL+"/root/another.txt.sha1sum") + ".txt.lock",
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},
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},
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{"successfull http dl - checksum from http file - url",
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fields{Extension: "txt", Url: []string{srvr.URL + "/root/another.txt?checksum=file:" + srvr.URL + "/root/another.txt.sha1sum"}},
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multistep.ActionContinue,
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[]string{
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toSha1("file:"+srvr.URL+"/root/another.txt.sha1sum") + ".txt",
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toSha1("file:"+srvr.URL+"/root/another.txt.sha1sum") + ".txt.lock",
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},
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},
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{"successfull http dl - checksum from url",
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fields{Extension: "txt", Url: []string{srvr.URL + "/root/another.txt?checksum=" + cs["/root/another.txt"]}},
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multistep.ActionContinue,
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[]string{
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toSha1(cs["/root/another.txt"]) + ".txt",
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toSha1(cs["/root/another.txt"]) + ".txt.lock",
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},
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},
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{"successfull http dl - checksum from parameter - no checksum type",
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fields{Extension: "txt", Url: []string{srvr.URL + "/root/another.txt?"}, Checksum: cs["/root/another.txt"]},
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multistep.ActionContinue,
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[]string{
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toSha1(cs["/root/another.txt"]) + ".txt",
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toSha1(cs["/root/another.txt"]) + ".txt.lock",
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},
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},
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{"successfull http dl - checksum from parameter - checksum type",
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fields{Extension: "txt", Url: []string{srvr.URL + "/root/another.txt?"}, ChecksumType: "sha1", Checksum: cs["/root/another.txt"]},
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multistep.ActionContinue,
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[]string{
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toSha1(cs["/root/another.txt"]) + ".txt",
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toSha1(cs["/root/another.txt"]) + ".txt.lock",
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},
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},
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{"successfull relative symlink - checksum from url",
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fields{Extension: "txt", Url: []string{"./test-fixtures/root/another.txt?checksum=" + cs["/root/another.txt"]}},
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multistep.ActionContinue,
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[]string{
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toSha1(cs["/root/another.txt"]) + ".txt",
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toSha1(cs["/root/another.txt"]) + ".txt.lock",
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},
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},
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{"successfull relative symlink - checksum from parameter - no checksum type",
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fields{Extension: "txt", Url: []string{"./test-fixtures/root/another.txt?"}, Checksum: cs["/root/another.txt"]},
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multistep.ActionContinue,
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[]string{
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toSha1(cs["/root/another.txt"]) + ".txt",
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toSha1(cs["/root/another.txt"]) + ".txt.lock",
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},
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},
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{"successfull relative symlink - checksum from parameter - checksum type",
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fields{Extension: "txt", Url: []string{"./test-fixtures/root/another.txt?"}, ChecksumType: "sha1", Checksum: cs["/root/another.txt"]},
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multistep.ActionContinue,
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[]string{
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toSha1(cs["/root/another.txt"]) + ".txt",
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toSha1(cs["/root/another.txt"]) + ".txt.lock",
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},
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},
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{"successfull absolute symlink - checksum from url",
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fields{Extension: "txt", Url: []string{abs(t, "./test-fixtures/root/another.txt") + "?checksum=" + cs["/root/another.txt"]}},
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multistep.ActionContinue,
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[]string{
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toSha1(cs["/root/another.txt"]) + ".txt",
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toSha1(cs["/root/another.txt"]) + ".txt.lock",
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},
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},
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{"successfull absolute symlink - checksum from parameter - no checksum type",
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fields{Extension: "txt", Url: []string{abs(t, "./test-fixtures/root/another.txt") + "?"}, Checksum: cs["/root/another.txt"]},
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multistep.ActionContinue,
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[]string{
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toSha1(cs["/root/another.txt"]) + ".txt",
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toSha1(cs["/root/another.txt"]) + ".txt.lock",
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},
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},
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{"successfull absolute symlink - checksum from parameter - checksum type",
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fields{Extension: "txt", Url: []string{abs(t, "./test-fixtures/root/another.txt") + "?"}, ChecksumType: "sha1", Checksum: cs["/root/another.txt"]},
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multistep.ActionContinue,
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[]string{
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toSha1(cs["/root/another.txt"]) + ".txt",
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toSha1(cs["/root/another.txt"]) + ".txt.lock",
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},
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},
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{"wrong first 2 urls - absolute urls - checksum from parameter - no checksum type",
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fields{
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Url: []string{
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abs(t, "./test-fixtures/root/another.txt"),
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abs(t, "./test-fixtures/root/not_found"),
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abs(t, "./test-fixtures/root/basic.txt"),
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},
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Checksum: cs["/root/basic.txt"],
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},
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multistep.ActionContinue,
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[]string{
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toSha1(cs["/root/basic.txt"]),
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toSha1(cs["/root/basic.txt"]) + ".lock",
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},
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},
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}
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for _, tt := range tests {
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t.Run(tt.name, func(t *testing.T) {
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dir := createTempDir(t)
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defer os.RemoveAll(dir)
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s := &StepDownload{
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TargetPath: tt.fields.TargetPath,
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Checksum: tt.fields.Checksum,
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ChecksumType: tt.fields.ChecksumType,
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ResultKey: tt.fields.ResultKey,
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Url: tt.fields.Url,
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Extension: tt.fields.Extension,
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Description: tt.name,
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}
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defer os.Setenv("PACKER_CACHE_DIR", os.Getenv("PACKER_CACHE_DIR"))
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os.Setenv("PACKER_CACHE_DIR", dir)
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if got := s.Run(context.Background(), testState(t)); !reflect.DeepEqual(got, tt.want) {
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t.Fatalf("StepDownload.Run() = %v, want %v", got, tt.want)
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}
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files := listFiles(t, dir)
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if diff := cmp.Diff(tt.wantFiles, files); diff != "" {
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t.Fatalf("file list differs in %s: %s", dir, diff)
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}
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})
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}
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}
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func createTempDir(t *testing.T) string {
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dir, err := tmp.Dir("pkr")
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if err != nil {
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t.Fatalf("err: %s", err)
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}
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return dir
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}
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func listFiles(t *testing.T, dir string) []string {
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fs, err := ioutil.ReadDir(dir)
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if err != nil {
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log.Fatal(err)
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}
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var files []string
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for _, file := range fs {
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if file.Name() == "." {
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continue
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}
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files = append(files, file.Name())
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}
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return files
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}
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