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moby--moby/builder/remotecontext/remote_test.go
Tonis Tiigi 5c3d2d552b Implement incremental file sync using client session
Also exposes shared cache and garbage collection/prune
for the source data.

Signed-off-by: Tonis Tiigi <tonistiigi@gmail.com>
2017-06-22 11:52:35 -07:00

263 lines
6.8 KiB
Go

package remotecontext
import (
"bytes"
"io"
"io/ioutil"
"net/http"
"net/http/httptest"
"net/url"
"testing"
"github.com/docker/docker/builder"
"github.com/docker/docker/pkg/archive"
"github.com/docker/docker/pkg/testutil"
"github.com/stretchr/testify/assert"
"github.com/stretchr/testify/require"
)
var binaryContext = []byte{0xFD, 0x37, 0x7A, 0x58, 0x5A, 0x00} //xz magic
func TestSelectAcceptableMIME(t *testing.T) {
validMimeStrings := []string{
"application/x-bzip2",
"application/bzip2",
"application/gzip",
"application/x-gzip",
"application/x-xz",
"application/xz",
"application/tar",
"application/x-tar",
"application/octet-stream",
"text/plain",
}
invalidMimeStrings := []string{
"",
"application/octet",
"application/json",
}
for _, m := range invalidMimeStrings {
if len(selectAcceptableMIME(m)) > 0 {
t.Fatalf("Should not have accepted %q", m)
}
}
for _, m := range validMimeStrings {
if str := selectAcceptableMIME(m); str == "" {
t.Fatalf("Should have accepted %q", m)
}
}
}
func TestInspectEmptyResponse(t *testing.T) {
ct := "application/octet-stream"
br := ioutil.NopCloser(bytes.NewReader([]byte("")))
contentType, bReader, err := inspectResponse(ct, br, 0)
if err == nil {
t.Fatal("Should have generated an error for an empty response")
}
if contentType != "application/octet-stream" {
t.Fatalf("Content type should be 'application/octet-stream' but is %q", contentType)
}
body, err := ioutil.ReadAll(bReader)
if err != nil {
t.Fatal(err)
}
if len(body) != 0 {
t.Fatal("response body should remain empty")
}
}
func TestInspectResponseBinary(t *testing.T) {
ct := "application/octet-stream"
br := ioutil.NopCloser(bytes.NewReader(binaryContext))
contentType, bReader, err := inspectResponse(ct, br, int64(len(binaryContext)))
if err != nil {
t.Fatal(err)
}
if contentType != "application/octet-stream" {
t.Fatalf("Content type should be 'application/octet-stream' but is %q", contentType)
}
body, err := ioutil.ReadAll(bReader)
if err != nil {
t.Fatal(err)
}
if len(body) != len(binaryContext) {
t.Fatalf("Wrong response size %d, should be == len(binaryContext)", len(body))
}
for i := range body {
if body[i] != binaryContext[i] {
t.Fatalf("Corrupted response body at byte index %d", i)
}
}
}
func TestResponseUnsupportedContentType(t *testing.T) {
content := []byte(dockerfileContents)
ct := "application/json"
br := ioutil.NopCloser(bytes.NewReader(content))
contentType, bReader, err := inspectResponse(ct, br, int64(len(dockerfileContents)))
if err == nil {
t.Fatal("Should have returned an error on content-type 'application/json'")
}
if contentType != ct {
t.Fatalf("Should not have altered content-type: orig: %s, altered: %s", ct, contentType)
}
body, err := ioutil.ReadAll(bReader)
if err != nil {
t.Fatal(err)
}
if string(body) != dockerfileContents {
t.Fatalf("Corrupted response body %s", body)
}
}
func TestInspectResponseTextSimple(t *testing.T) {
content := []byte(dockerfileContents)
ct := "text/plain"
br := ioutil.NopCloser(bytes.NewReader(content))
contentType, bReader, err := inspectResponse(ct, br, int64(len(content)))
if err != nil {
t.Fatal(err)
}
if contentType != "text/plain" {
t.Fatalf("Content type should be 'text/plain' but is %q", contentType)
}
body, err := ioutil.ReadAll(bReader)
if err != nil {
t.Fatal(err)
}
if string(body) != dockerfileContents {
t.Fatalf("Corrupted response body %s", body)
}
}
func TestInspectResponseEmptyContentType(t *testing.T) {
content := []byte(dockerfileContents)
br := ioutil.NopCloser(bytes.NewReader(content))
contentType, bodyReader, err := inspectResponse("", br, int64(len(content)))
if err != nil {
t.Fatal(err)
}
if contentType != "text/plain" {
t.Fatalf("Content type should be 'text/plain' but is %q", contentType)
}
body, err := ioutil.ReadAll(bodyReader)
if err != nil {
t.Fatal(err)
}
if string(body) != dockerfileContents {
t.Fatalf("Corrupted response body %s", body)
}
}
func TestUnknownContentLength(t *testing.T) {
content := []byte(dockerfileContents)
ct := "text/plain"
br := ioutil.NopCloser(bytes.NewReader(content))
contentType, bReader, err := inspectResponse(ct, br, -1)
if err != nil {
t.Fatal(err)
}
if contentType != "text/plain" {
t.Fatalf("Content type should be 'text/plain' but is %q", contentType)
}
body, err := ioutil.ReadAll(bReader)
if err != nil {
t.Fatal(err)
}
if string(body) != dockerfileContents {
t.Fatalf("Corrupted response body %s", body)
}
}
func TestMakeRemoteContext(t *testing.T) {
contextDir, cleanup := createTestTempDir(t, "", "builder-tarsum-test")
defer cleanup()
createTestTempFile(t, contextDir, builder.DefaultDockerfileName, dockerfileContents, 0777)
mux := http.NewServeMux()
server := httptest.NewServer(mux)
serverURL, _ := url.Parse(server.URL)
serverURL.Path = "/" + builder.DefaultDockerfileName
remoteURL := serverURL.String()
mux.Handle("/", http.FileServer(http.Dir(contextDir)))
remoteContext, err := MakeRemoteContext(remoteURL, map[string]func(io.ReadCloser) (io.ReadCloser, error){
mimeTypes.TextPlain: func(rc io.ReadCloser) (io.ReadCloser, error) {
dockerfile, err := ioutil.ReadAll(rc)
if err != nil {
return nil, err
}
r, err := archive.Generate(builder.DefaultDockerfileName, string(dockerfile))
if err != nil {
return nil, err
}
return ioutil.NopCloser(r), nil
},
})
if err != nil {
t.Fatalf("Error when executing DetectContextFromRemoteURL: %s", err)
}
if remoteContext == nil {
t.Fatal("Remote context should not be nil")
}
h, err := remoteContext.Hash(builder.DefaultDockerfileName)
if err != nil {
t.Fatalf("failed to compute hash %s", err)
}
if expected, actual := "7b6b6b66bee9e2102fbdc2228be6c980a2a23adf371962a37286a49f7de0f7cc", h; expected != actual {
t.Fatalf("There should be file named %s %s in fileInfoSums", expected, actual)
}
}
func TestGetWithStatusError(t *testing.T) {
var testcases = []struct {
err error
statusCode int
expectedErr string
expectedBody string
}{
{
statusCode: 200,
expectedBody: "THE BODY",
},
{
statusCode: 400,
expectedErr: "with status 400 Bad Request: broke",
expectedBody: "broke",
},
}
for _, testcase := range testcases {
ts := httptest.NewServer(
http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
buffer := bytes.NewBufferString(testcase.expectedBody)
w.WriteHeader(testcase.statusCode)
w.Write(buffer.Bytes())
}),
)
defer ts.Close()
response, err := GetWithStatusError(ts.URL)
if testcase.expectedErr == "" {
require.NoError(t, err)
body, err := testutil.ReadBody(response.Body)
require.NoError(t, err)
assert.Contains(t, string(body), testcase.expectedBody)
} else {
testutil.ErrorContains(t, err, testcase.expectedErr)
}
}
}