ooni-probe-cli/internal/errorsx/dialer_test.go

84 lines
2.0 KiB
Go

package errorsx
import (
"context"
"errors"
"io"
"net"
"testing"
"github.com/ooni/probe-cli/v3/internal/netxmocks"
)
func TestErrorWrapperFailure(t *testing.T) {
ctx := context.Background()
d := &ErrorWrapperDialer{Dialer: &netxmocks.Dialer{
MockDialContext: func(ctx context.Context, network string, address string) (net.Conn, error) {
return nil, io.EOF
},
}}
conn, err := d.DialContext(ctx, "tcp", "www.google.com:443")
if conn != nil {
t.Fatal("expected a nil conn here")
}
errorWrapperCheckErr(t, err, ConnectOperation)
}
func errorWrapperCheckErr(t *testing.T, err error, op string) {
if !errors.Is(err, io.EOF) {
t.Fatal("expected another error here")
}
var errWrapper *ErrWrapper
if !errors.As(err, &errWrapper) {
t.Fatal("cannot cast to ErrWrapper")
}
if errWrapper.Operation != op {
t.Fatal("unexpected Operation")
}
if errWrapper.Failure != FailureEOFError {
t.Fatal("unexpected failure")
}
}
func TestErrorWrapperSuccess(t *testing.T) {
ctx := context.Background()
d := &ErrorWrapperDialer{Dialer: &netxmocks.Dialer{
MockDialContext: func(ctx context.Context, network string, address string) (net.Conn, error) {
return &netxmocks.Conn{
MockRead: func(b []byte) (int, error) {
return 0, io.EOF
},
MockWrite: func(b []byte) (int, error) {
return 0, io.EOF
},
MockClose: func() error {
return io.EOF
},
MockLocalAddr: func() net.Addr {
return &net.TCPAddr{Port: 12345}
},
}, nil
},
}}
conn, err := d.DialContext(ctx, "tcp", "www.google.com")
if err != nil {
t.Fatal(err)
}
if conn == nil {
t.Fatal("expected non-nil conn here")
}
count, err := conn.Read(nil)
errorWrapperCheckIOResult(t, count, err, ReadOperation)
count, err = conn.Write(nil)
errorWrapperCheckIOResult(t, count, err, WriteOperation)
err = conn.Close()
errorWrapperCheckErr(t, err, CloseOperation)
}
func errorWrapperCheckIOResult(t *testing.T, count int, err error, op string) {
if count != 0 {
t.Fatal("expected nil count here")
}
errorWrapperCheckErr(t, err, op)
}