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// Copyright 2021 The Gitea Authors. All rights reserved.
// Use of this source code is governed by a MIT-style
// license that can be found in the LICENSE file.
package lfs
import (
"bytes"
"context"
"encoding/json"
"io"
"io/ioutil"
"net/http"
"strings"
"testing"
"github.com/stretchr/testify/assert"
)
type RoundTripFunc func(req *http.Request) *http.Response
func (f RoundTripFunc) RoundTrip(req *http.Request) (*http.Response, error) {
return f(req), nil
}
type DummyTransferAdapter struct {
}
func (a *DummyTransferAdapter) Name() string {
return "dummy"
}
func (a *DummyTransferAdapter) Download(ctx context.Context, r *ObjectResponse) (io.ReadCloser, error) {
return ioutil.NopCloser(bytes.NewBufferString("dummy")), nil
}
func TestHTTPClientDownload(t *testing.T) {
oid := "fb8f7d8435968c4f82a726a92395be4d16f2f63116caf36c8ad35c60831ab041"
size := int64(6)
roundTripHandler := func(req *http.Request) *http.Response {
url := req.URL.String()
if strings.Contains(url, "status-not-ok") {
return &http.Response{StatusCode: http.StatusBadRequest}
}
if strings.Contains(url, "invalid-json-response") {
return &http.Response{StatusCode: http.StatusOK, Body: ioutil.NopCloser(bytes.NewBufferString("invalid json"))}
}
if strings.Contains(url, "valid-batch-request-download") {
assert.Equal(t, "POST", req.Method)
assert.Equal(t, MediaType, req.Header.Get("Content-type"), "case %s: error should match", url)
assert.Equal(t, MediaType, req.Header.Get("Accept"), "case %s: error should match", url)
var batchRequest BatchRequest
err := json.NewDecoder(req.Body).Decode(&batchRequest)
assert.NoError(t, err)
assert.Equal(t, "download", batchRequest.Operation)
assert.Len(t, batchRequest.Objects, 1)
assert.Equal(t, oid, batchRequest.Objects[0].Oid)
assert.Equal(t, size, batchRequest.Objects[0].Size)
batchResponse := &BatchResponse{
Transfer: "dummy",
Objects: make([]*ObjectResponse, 1),
}
payload := new(bytes.Buffer)
json.NewEncoder(payload).Encode(batchResponse)
return &http.Response{StatusCode: http.StatusOK, Body: ioutil.NopCloser(payload)}
}
if strings.Contains(url, "invalid-response-no-objects") {
batchResponse := &BatchResponse{Transfer: "dummy"}
payload := new(bytes.Buffer)
json.NewEncoder(payload).Encode(batchResponse)
return &http.Response{StatusCode: http.StatusOK, Body: ioutil.NopCloser(payload)}
}
if strings.Contains(url, "unknown-transfer-adapter") {
batchResponse := &BatchResponse{Transfer: "unknown_adapter"}
payload := new(bytes.Buffer)
json.NewEncoder(payload).Encode(batchResponse)
return &http.Response{StatusCode: http.StatusOK, Body: ioutil.NopCloser(payload)}
}
t.Errorf("Unknown test case: %s", url)
return nil
}
hc := &http.Client{Transport: RoundTripFunc(roundTripHandler)}
dummy := &DummyTransferAdapter{}
var cases = []struct {
endpoint string
expectederror string
}{
// case 0
{
endpoint: "https://status-not-ok.io",
expectederror: "Unexpected servers response: ",
},
// case 1
{
endpoint: "https://invalid-json-response.io",
expectederror: "json.Decode: ",
},
// case 2
{
endpoint: "https://valid-batch-request-download.io",
expectederror: "",
},
// case 3
{
endpoint: "https://invalid-response-no-objects.io",
expectederror: "No objects in result",
},
// case 4
{
endpoint: "https://unknown-transfer-adapter.io",
expectederror: "Transferadapter not found: ",
},
}
for n, c := range cases {
client := &HTTPClient{
client: hc,
endpoint: c.endpoint,
transfers: make(map[string]TransferAdapter),
}
client.transfers["dummy"] = dummy
_, err := client.Download(context.Background(), oid, size)
if len(c.expectederror) > 0 {
assert.True(t, strings.Contains(err.Error(), c.expectederror), "case %d: '%s' should contain '%s'", n, err.Error(), c.expectederror)
} else {
assert.NoError(t, err, "case %d", n)
}
}
}
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