packer-cn/packer/cache_test.go
Adrien Delorme 9f82b75e57 Use the hashicorp/go-getter to download files
* removed packer.Cache and references since packer.Cache is never used except in the download step. The download step now uses the new func packer.CachePath(targetPath) for this, the behavior is the same.
* removed download code from packer that was reimplemented into the go-getter library: progress bar, http download restart, checksuming from file, skip already downloaded files, symlinking, make a download cancellable by context.
* on windows if packer is running without symlinking rights and we are getting a local file, the file will be copied instead to avoid errors.
* added unit tests for step_download that are now CI tested on windows, mac & linux.
* files are now downloaded under cache dir `sha1(filename + "?checksum=" + checksum) + file_extension`
* since the output dir is based on the source url and the checksum, when the checksum fails, the file is auto deleted.
* a download file is protected and locked by a file lock,
* updated docs
* updated go modules and vendors
2019-03-13 12:11:58 +01:00

53 lines
1.1 KiB
Go

package packer
import (
"os"
"path/filepath"
"testing"
)
func TestCachePath(t *testing.T) {
wd, err := os.Getwd()
if err != nil {
t.Fatalf("Getwd: %v", err)
}
tmp := os.TempDir()
// reset env
cd := os.Getenv("PACKER_CACHE_DIR")
os.Setenv("PACKER_CACHE_DIR", "")
defer func() {
os.Setenv("PACKER_CACHE_DIR", cd)
}()
type args struct {
paths []string
}
tests := []struct {
name string
args args
env map[string]string
want string
wantErr bool
}{
{"base", args{}, nil, filepath.Join(wd, "packer_cache"), false},
{"base and path", args{[]string{"a", "b"}}, nil, filepath.Join(wd, "packer_cache", "a", "b"), false},
{"env and path", args{[]string{"a", "b"}}, map[string]string{"PACKER_CACHE_DIR": tmp}, filepath.Join(tmp, "a", "b"), false},
}
for _, tt := range tests {
t.Run(tt.name, func(t *testing.T) {
for k, v := range tt.env {
os.Setenv(k, v)
}
got, err := CachePath(tt.args.paths...)
if (err != nil) != tt.wantErr {
t.Errorf("CachePath() error = %v, wantErr %v", err, tt.wantErr)
return
}
if got != tt.want {
t.Errorf("CachePath() = %v, want %v", got, tt.want)
}
})
}
}