packer-cn/common/download_test.go

188 lines
3.9 KiB
Go

package common
import (
"crypto/md5"
"encoding/hex"
"io/ioutil"
"net/http"
"net/http/httptest"
"os"
"testing"
)
func TestDownloadClient_VerifyChecksum(t *testing.T) {
tf, err := ioutil.TempFile("", "packer")
if err != nil {
t.Fatalf("tempfile error: %s", err)
}
defer os.Remove(tf.Name())
// "foo"
checksum, err := hex.DecodeString("acbd18db4cc2f85cedef654fccc4a4d8")
if err != nil {
t.Fatalf("decode err: %s", err)
}
// Write the file
tf.Write([]byte("foo"))
tf.Close()
config := &DownloadConfig{
Hash: md5.New(),
Checksum: checksum,
}
d := NewDownloadClient(config)
result, err := d.VerifyChecksum(tf.Name())
if err != nil {
t.Fatalf("Verify err: %s", err)
}
if !result {
t.Fatal("didn't verify")
}
}
func TestDownloadClientUsesDefaultUserAgent(t *testing.T) {
tf, err := ioutil.TempFile("", "packer")
if err != nil {
t.Fatalf("tempfile error: %s", err)
}
defer os.Remove(tf.Name())
defaultUserAgent := ""
asserted := false
server := httptest.NewServer(http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
if defaultUserAgent == "" {
defaultUserAgent = r.UserAgent()
} else {
incomingUserAgent := r.UserAgent()
if incomingUserAgent != defaultUserAgent {
t.Fatalf("Expected user agent %s, got: %s", defaultUserAgent, incomingUserAgent)
}
asserted = true
}
}))
req, err := http.NewRequest("GET", server.URL, nil)
if err != nil {
t.Fatal(err)
}
httpClient := &http.Client{
Transport: &http.Transport{
Proxy: http.ProxyFromEnvironment,
},
}
_, err = httpClient.Do(req)
if err != nil {
t.Fatal(err)
}
config := &DownloadConfig{
Url: server.URL,
TargetPath: tf.Name(),
}
client := NewDownloadClient(config)
_, err = client.Get()
if err != nil {
t.Fatal(err)
}
if !asserted {
t.Fatal("User-Agent never observed")
}
}
func TestDownloadClientSetsUserAgent(t *testing.T) {
tf, err := ioutil.TempFile("", "packer")
if err != nil {
t.Fatalf("tempfile error: %s", err)
}
defer os.Remove(tf.Name())
asserted := false
server := httptest.NewServer(http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
asserted = true
if r.UserAgent() != "fancy user agent" {
t.Fatalf("Expected useragent fancy user agent, got: %s", r.UserAgent())
}
}))
config := &DownloadConfig{
Url: server.URL,
TargetPath: tf.Name(),
UserAgent: "fancy user agent",
}
client := NewDownloadClient(config)
_, err = client.Get()
if err != nil {
t.Fatal(err)
}
if !asserted {
t.Fatal("HTTP request never made")
}
}
func TestHashForType(t *testing.T) {
if h := HashForType("md5"); h == nil {
t.Fatalf("md5 hash is nil")
} else {
h.Write([]byte("foo"))
result := h.Sum(nil)
expected := "acbd18db4cc2f85cedef654fccc4a4d8"
actual := hex.EncodeToString(result)
if actual != expected {
t.Fatalf("bad hash: %s", actual)
}
}
if h := HashForType("sha1"); h == nil {
t.Fatalf("sha1 hash is nil")
} else {
h.Write([]byte("foo"))
result := h.Sum(nil)
expected := "0beec7b5ea3f0fdbc95d0dd47f3c5bc275da8a33"
actual := hex.EncodeToString(result)
if actual != expected {
t.Fatalf("bad hash: %s", actual)
}
}
if h := HashForType("sha256"); h == nil {
t.Fatalf("sha256 hash is nil")
} else {
h.Write([]byte("foo"))
result := h.Sum(nil)
expected := "2c26b46b68ffc68ff99b453c1d30413413422d706483bfa0f98a5e886266e7ae"
actual := hex.EncodeToString(result)
if actual != expected {
t.Fatalf("bad hash: %s", actual)
}
}
if h := HashForType("sha512"); h == nil {
t.Fatalf("sha512 hash is nil")
} else {
h.Write([]byte("foo"))
result := h.Sum(nil)
expected := "f7fbba6e0636f890e56fbbf3283e524c6fa3204ae298382d624741d0dc6638326e282c41be5e4254d8820772c5518a2c5a8c0c7f7eda19594a7eb539453e1ed7"
actual := hex.EncodeToString(result)
if actual != expected {
t.Fatalf("bad hash: %s", actual)
}
}
if HashForType("fake") != nil {
t.Fatalf("fake hash is not nil")
}
}