packer-cn/packer/cache_test.go

85 lines
1.7 KiB
Go

package packer
import (
"io/ioutil"
"os"
"strings"
"testing"
"github.com/hashicorp/packer/packer/tmp"
)
type TestCache struct{}
func (TestCache) Lock(string) string {
return ""
}
func (TestCache) Unlock(string) {}
func (TestCache) RLock(string) (string, bool) {
return "", false
}
func (TestCache) RUnlock(string) {}
func TestFileCache_Implements(t *testing.T) {
var raw interface{}
raw = &FileCache{}
if _, ok := raw.(Cache); !ok {
t.Fatal("FileCache must be a Cache")
}
}
func TestFileCache(t *testing.T) {
cacheDir, err := tmp.Dir("packer")
if err != nil {
t.Fatalf("error creating temporary dir: %s", err)
}
defer os.RemoveAll(cacheDir)
cache := &FileCache{CacheDir: cacheDir}
// Test path with no extension (GH-716)
path := cache.Lock("/foo.bar/baz")
defer cache.Unlock("/foo.bar/baz")
if strings.Contains(path, ".bar") {
t.Fatalf("bad: %s", path)
}
// Test paths with a ?
path = cache.Lock("foo.ext?foo=bar.foo")
defer cache.Unlock("foo.ext?foo=bar.foo")
if !strings.HasSuffix(path, ".ext") {
t.Fatalf("bad extension with question mark: %s", path)
}
// Test normal paths
path = cache.Lock("foo.iso")
if !strings.HasSuffix(path, ".iso") {
t.Fatalf("path doesn't end with suffix '%s': '%s'", ".iso", path)
}
err = ioutil.WriteFile(path, []byte("data"), 0666)
if err != nil {
t.Fatalf("error writing: %s", err)
}
cache.Unlock("foo.iso")
path, ok := cache.RLock("foo.iso")
if !ok {
t.Fatal("cache says key doesn't exist")
}
defer cache.RUnlock("foo.iso")
data, err := ioutil.ReadFile(path)
if err != nil {
t.Fatalf("error reading file: %s", err)
}
if string(data) != "data" {
t.Fatalf("unknown data: %s", data)
}
}