ooni-probe-cli/internal/engine/cmd/oohelperd/internal/fake_test.go
Simone Basso d57c78bc71
chore: merge probe-engine into probe-cli (#201)
This is how I did it:

1. `git clone https://github.com/ooni/probe-engine internal/engine`

2. ```
(cd internal/engine && git describe --tags)
v0.23.0
```

3. `nvim go.mod` (merging `go.mod` with `internal/engine/go.mod`

4. `rm -rf internal/.git internal/engine/go.{mod,sum}`

5. `git add internal/engine`

6. `find . -type f -name \*.go -exec sed -i 's@/ooni/probe-engine@/ooni/probe-cli/v3/internal/engine@g' {} \;`

7. `go build ./...` (passes)

8. `go test -race ./...` (temporary failure on RiseupVPN)

9. `go mod tidy`

10. this commit message

Once this piece of work is done, we can build a new version of `ooniprobe` that
is using `internal/engine` directly. We need to do more work to ensure all the
other functionality in `probe-engine` (e.g. making mobile packages) are still WAI.

Part of https://github.com/ooni/probe/issues/1335
2021-02-02 12:05:47 +01:00

127 lines
2.4 KiB
Go

package internal
import (
"context"
"io"
"io/ioutil"
"net"
"net/http"
"time"
"github.com/ooni/probe-cli/v3/internal/engine/atomicx"
"github.com/ooni/probe-cli/v3/internal/engine/netx"
)
type FakeResolver struct {
NumFailures *atomicx.Int64
Err error
Result []string
}
func NewFakeResolverThatFails() FakeResolver {
return FakeResolver{NumFailures: atomicx.NewInt64(), Err: ErrNotFound}
}
func NewFakeResolverWithResult(r []string) FakeResolver {
return FakeResolver{NumFailures: atomicx.NewInt64(), Result: r}
}
var ErrNotFound = &net.DNSError{
Err: "no such host",
}
func (c FakeResolver) LookupHost(ctx context.Context, hostname string) ([]string, error) {
time.Sleep(10 * time.Microsecond)
if c.Err != nil {
if c.NumFailures != nil {
c.NumFailures.Add(1)
}
return nil, c.Err
}
return c.Result, nil
}
func (c FakeResolver) Network() string {
return "fake"
}
func (c FakeResolver) Address() string {
return ""
}
var _ netx.Resolver = FakeResolver{}
type FakeTransport struct {
Err error
Func func(*http.Request) (*http.Response, error)
Resp *http.Response
}
func (txp FakeTransport) RoundTrip(req *http.Request) (*http.Response, error) {
time.Sleep(10 * time.Microsecond)
if txp.Func != nil {
return txp.Func(req)
}
if req.Body != nil {
ioutil.ReadAll(req.Body)
req.Body.Close()
}
if txp.Err != nil {
return nil, txp.Err
}
txp.Resp.Request = req // non thread safe but it doesn't matter
return txp.Resp, nil
}
func (txp FakeTransport) CloseIdleConnections() {}
var _ netx.HTTPRoundTripper = FakeTransport{}
type FakeBody struct {
Data []byte
Err error
}
func (fb *FakeBody) Read(p []byte) (int, error) {
time.Sleep(10 * time.Microsecond)
if fb.Err != nil {
return 0, fb.Err
}
if len(fb.Data) <= 0 {
return 0, io.EOF
}
n := copy(p, fb.Data)
fb.Data = fb.Data[n:]
return n, nil
}
func (fb *FakeBody) Close() error {
return nil
}
var _ io.ReadCloser = &FakeBody{}
type FakeResponseWriter struct {
Body [][]byte
HeaderMap http.Header
StatusCode int
}
func NewFakeResponseWriter() *FakeResponseWriter {
return &FakeResponseWriter{HeaderMap: make(http.Header)}
}
func (frw *FakeResponseWriter) Header() http.Header {
return frw.HeaderMap
}
func (frw *FakeResponseWriter) Write(b []byte) (int, error) {
frw.Body = append(frw.Body, b)
return len(b), nil
}
func (frw *FakeResponseWriter) WriteHeader(statusCode int) {
frw.StatusCode = statusCode
}
var _ http.ResponseWriter = &FakeResponseWriter{}