ooni-probe-cli/internal/netxlite/http_test.go
Simone Basso b9a844ecee
feat: run ~always netxlite integration tests (#522)
* feat: run ~always netxlite integration tests

This diff ensures that we check on windows, linux, macos that our
fundamental networking library (netxlite) works.

We combine unit and integration tests.

This work is part of https://github.com/ooni/probe/issues/1733, where
I want to have more strong guarantees about the foundations.

* fix(filtering/tls_test.go): make portable on Windows

The trick here is to use the wrapped error so to normalize the
different errors messages we see on Windows.

* fix(netxlite/quic_test.go): make portable on windows

Rather than using the zero port, use the `x` port which fails
when the stdlib is parsing the address.

The zero port seems to work on Windows while it does not on Unix.

* fix(serialresolver_test.go): make error more timeout than before

This seems enough to convince Go on Windows about this error
being really a timeout timeouty timeouted thingie.
2021-09-29 16:04:26 +02:00

415 lines
10 KiB
Go

package netxlite
import (
"context"
"errors"
"io"
"net"
"net/http"
"strings"
"testing"
"time"
"github.com/apex/log"
oohttp "github.com/ooni/oohttp"
"github.com/ooni/probe-cli/v3/internal/atomicx"
"github.com/ooni/probe-cli/v3/internal/netxlite/mocks"
)
func TestHTTPTransportLogger(t *testing.T) {
t.Run("RoundTrip", func(t *testing.T) {
t.Run("with failure", func(t *testing.T) {
var count int
lo := &mocks.Logger{
MockDebug: func(message string) {
count++
},
MockDebugf: func(format string, v ...interface{}) {
count++
},
}
txp := &httpTransportLogger{
Logger: lo,
HTTPTransport: &mocks.HTTPTransport{
MockRoundTrip: func(req *http.Request) (*http.Response, error) {
return nil, io.EOF
},
},
}
client := &http.Client{Transport: txp}
resp, err := client.Get("https://www.google.com")
if !errors.Is(err, io.EOF) {
t.Fatal("not the error we expected")
}
if resp != nil {
t.Fatal("expected nil response here")
}
if count < 1 {
t.Fatal("no logs?!")
}
})
t.Run("with success", func(t *testing.T) {
var count int
lo := &mocks.Logger{
MockDebug: func(message string) {
count++
},
MockDebugf: func(format string, v ...interface{}) {
count++
},
}
txp := &httpTransportLogger{
Logger: lo,
HTTPTransport: &mocks.HTTPTransport{
MockRoundTrip: func(req *http.Request) (*http.Response, error) {
return &http.Response{
Body: io.NopCloser(strings.NewReader("")),
Header: http.Header{
"Server": []string{"antani/0.1.0"},
},
StatusCode: 200,
}, nil
},
},
}
client := &http.Client{Transport: txp}
req, err := http.NewRequest("GET", "https://www.google.com", nil)
if err != nil {
t.Fatal(err)
}
req.Header.Set("User-Agent", "miniooni/0.1.0-dev")
resp, err := client.Do(req)
if err != nil {
t.Fatal(err)
}
ReadAllContext(context.Background(), resp.Body)
resp.Body.Close()
if count < 1 {
t.Fatal("no logs?!")
}
})
})
t.Run("CloseIdleConnections", func(t *testing.T) {
calls := &atomicx.Int64{}
txp := &httpTransportLogger{
HTTPTransport: &mocks.HTTPTransport{
MockCloseIdleConnections: func() {
calls.Add(1)
},
},
Logger: log.Log,
}
txp.CloseIdleConnections()
if calls.Load() != 1 {
t.Fatal("not called")
}
})
}
func TestHTTPTransportConnectionsCloser(t *testing.T) {
t.Run("CloseIdleConnections", func(t *testing.T) {
var (
calledTxp bool
calledDialer bool
calledTLS bool
)
txp := &httpTransportConnectionsCloser{
HTTPTransport: &mocks.HTTPTransport{
MockCloseIdleConnections: func() {
calledTxp = true
},
},
Dialer: &mocks.Dialer{
MockCloseIdleConnections: func() {
calledDialer = true
},
},
TLSDialer: &mocks.TLSDialer{
MockCloseIdleConnections: func() {
calledTLS = true
},
},
}
txp.CloseIdleConnections()
if !calledDialer || !calledTLS || !calledTxp {
t.Fatal("not called")
}
})
t.Run("RoundTrip", func(t *testing.T) {
expected := errors.New("mocked error")
txp := &httpTransportConnectionsCloser{
HTTPTransport: &mocks.HTTPTransport{
MockRoundTrip: func(req *http.Request) (*http.Response, error) {
return nil, expected
},
},
}
client := &http.Client{Transport: txp}
resp, err := client.Get("https://www.google.com")
if !errors.Is(err, expected) {
t.Fatal("unexpected err", err)
}
if resp != nil {
t.Fatal("unexpected resp")
}
})
}
func TestNewHTTPTransport(t *testing.T) {
t.Run("works as intended with failing dialer", func(t *testing.T) {
called := &atomicx.Int64{}
expected := errors.New("mocked error")
d := &dialerResolver{
Dialer: &mocks.Dialer{
MockDialContext: func(ctx context.Context,
network, address string) (net.Conn, error) {
return nil, expected
},
MockCloseIdleConnections: func() {
called.Add(1)
},
},
Resolver: NewResolverStdlib(log.Log),
}
td := NewTLSDialer(d, NewTLSHandshakerStdlib(log.Log))
txp := NewHTTPTransport(log.Log, d, td)
client := &http.Client{Transport: txp}
resp, err := client.Get("https://8.8.4.4/robots.txt")
if !errors.Is(err, expected) {
t.Fatal("not the error we expected", err)
}
if resp != nil {
t.Fatal("expected non-nil response here")
}
client.CloseIdleConnections()
if called.Load() < 1 {
t.Fatal("did not propagate CloseIdleConnections")
}
})
t.Run("creates the correct type chain", func(t *testing.T) {
d := &mocks.Dialer{}
td := &mocks.TLSDialer{}
txp := NewHTTPTransport(log.Log, d, td)
logger := txp.(*httpTransportLogger)
if logger.Logger != log.Log {
t.Fatal("invalid logger")
}
connectionsCloser := logger.HTTPTransport.(*httpTransportConnectionsCloser)
withReadTimeout := connectionsCloser.Dialer.(*httpDialerWithReadTimeout)
if withReadTimeout.Dialer != d {
t.Fatal("invalid dialer")
}
tlsWithReadTimeout := connectionsCloser.TLSDialer.(*httpTLSDialerWithReadTimeout)
if tlsWithReadTimeout.TLSDialer != td {
t.Fatal("invalid tls dialer")
}
stdlib := connectionsCloser.HTTPTransport.(*oohttp.StdlibTransport)
if !stdlib.Transport.ForceAttemptHTTP2 {
t.Fatal("invalid ForceAttemptHTTP2")
}
if !stdlib.Transport.DisableCompression {
t.Fatal("invalid DisableCompression")
}
if stdlib.Transport.MaxConnsPerHost != 1 {
t.Fatal("invalid MaxConnPerHost")
}
if stdlib.Transport.DialTLSContext == nil {
t.Fatal("invalid DialTLSContext")
}
if stdlib.Transport.DialContext == nil {
t.Fatal("invalid DialContext")
}
})
}
func TestHTTPDialerWithReadTimeout(t *testing.T) {
t.Run("on success", func(t *testing.T) {
var (
calledWithZeroTime bool
calledWithNonZeroTime bool
)
origConn := &mocks.Conn{
MockSetReadDeadline: func(t time.Time) error {
switch t.IsZero() {
case true:
calledWithZeroTime = true
case false:
calledWithNonZeroTime = true
}
return nil
},
MockRead: func(b []byte) (int, error) {
return 0, io.EOF
},
}
d := &httpDialerWithReadTimeout{
Dialer: &mocks.Dialer{
MockDialContext: func(ctx context.Context, network, address string) (net.Conn, error) {
return origConn, nil
},
},
}
ctx := context.Background()
conn, err := d.DialContext(ctx, "", "")
if err != nil {
t.Fatal(err)
}
if _, okay := conn.(*httpConnWithReadTimeout); !okay {
t.Fatal("invalid conn type")
}
if conn.(*httpConnWithReadTimeout).Conn != origConn {
t.Fatal("invalid origin conn")
}
b := make([]byte, 1024)
count, err := conn.Read(b)
if !errors.Is(err, io.EOF) {
t.Fatal("invalid error")
}
if count != 0 {
t.Fatal("invalid count")
}
if !calledWithZeroTime || !calledWithNonZeroTime {
t.Fatal("not called")
}
})
t.Run("on failure", func(t *testing.T) {
expected := errors.New("mocked error")
d := &httpDialerWithReadTimeout{
Dialer: &mocks.Dialer{
MockDialContext: func(ctx context.Context, network, address string) (net.Conn, error) {
return nil, expected
},
},
}
conn, err := d.DialContext(context.Background(), "", "")
if !errors.Is(err, expected) {
t.Fatal("not the error we expected")
}
if conn != nil {
t.Fatal("expected nil conn here")
}
})
}
func TestHTTPTLSDialerWithReadTimeout(t *testing.T) {
t.Run("on success", func(t *testing.T) {
var (
calledWithZeroTime bool
calledWithNonZeroTime bool
)
origConn := &mocks.TLSConn{
Conn: mocks.Conn{
MockSetReadDeadline: func(t time.Time) error {
switch t.IsZero() {
case true:
calledWithZeroTime = true
case false:
calledWithNonZeroTime = true
}
return nil
},
MockRead: func(b []byte) (int, error) {
return 0, io.EOF
},
},
}
d := &httpTLSDialerWithReadTimeout{
TLSDialer: &mocks.TLSDialer{
MockDialTLSContext: func(ctx context.Context, network, address string) (net.Conn, error) {
return origConn, nil
},
},
}
ctx := context.Background()
conn, err := d.DialTLSContext(ctx, "", "")
if err != nil {
t.Fatal(err)
}
if _, okay := conn.(*httpTLSConnWithReadTimeout); !okay {
t.Fatal("invalid conn type")
}
if conn.(*httpTLSConnWithReadTimeout).TLSConn != origConn {
t.Fatal("invalid origin conn")
}
b := make([]byte, 1024)
count, err := conn.Read(b)
if !errors.Is(err, io.EOF) {
t.Fatal("invalid error")
}
if count != 0 {
t.Fatal("invalid count")
}
if !calledWithZeroTime || !calledWithNonZeroTime {
t.Fatal("not called")
}
})
t.Run("on failure", func(t *testing.T) {
expected := errors.New("mocked error")
d := &httpTLSDialerWithReadTimeout{
TLSDialer: &mocks.TLSDialer{
MockDialTLSContext: func(ctx context.Context, network, address string) (net.Conn, error) {
return nil, expected
},
},
}
conn, err := d.DialTLSContext(context.Background(), "", "")
if !errors.Is(err, expected) {
t.Fatal("not the error we expected")
}
if conn != nil {
t.Fatal("expected nil conn here")
}
})
t.Run("with invalid conn type", func(t *testing.T) {
var called bool
d := &httpTLSDialerWithReadTimeout{
TLSDialer: &mocks.TLSDialer{
MockDialTLSContext: func(ctx context.Context, network, address string) (net.Conn, error) {
return &mocks.Conn{
MockClose: func() error {
called = true
return nil
},
}, nil
},
},
}
conn, err := d.DialTLSContext(context.Background(), "", "")
if !errors.Is(err, ErrNotTLSConn) {
t.Fatal("not the error we expected")
}
if conn != nil {
t.Fatal("expected nil conn here")
}
if !called {
t.Fatal("not called")
}
})
}
func TestNewHTTPTransportStdlib(t *testing.T) {
// What to test about this factory?
txp := NewHTTPTransportStdlib(log.Log)
ctx, cancel := context.WithCancel(context.Background())
cancel() // immediately!
req, err := http.NewRequestWithContext(ctx, "GET", "http://x.org", nil)
if err != nil {
t.Fatal(err)
}
resp, err := txp.RoundTrip(req)
if !errors.Is(err, context.Canceled) {
t.Fatal("unexpected err", err)
}
if resp != nil {
t.Fatal("unexpected resp")
}
txp.CloseIdleConnections()
}