ooni-probe-cli/internal/engine/netx/resolver/dnsoverudp_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

108 lines
2.4 KiB
Go

package resolver_test
import (
"context"
"errors"
"net"
"testing"
"github.com/ooni/probe-cli/v3/internal/engine/netx/resolver"
)
func TestDNSOverUDPDialFailure(t *testing.T) {
mocked := errors.New("mocked error")
const address = "9.9.9.9:53"
txp := resolver.NewDNSOverUDP(resolver.FakeDialer{Err: mocked}, address)
data, err := txp.RoundTrip(context.Background(), nil)
if !errors.Is(err, mocked) {
t.Fatal("not the error we expected")
}
if data != nil {
t.Fatal("expected no response here")
}
}
func TestDNSOverUDPSetDeadlineError(t *testing.T) {
mocked := errors.New("mocked error")
txp := resolver.NewDNSOverUDP(
resolver.FakeDialer{
Conn: &resolver.FakeConn{
SetDeadlineError: mocked,
},
}, "9.9.9.9:53",
)
data, err := txp.RoundTrip(context.Background(), nil)
if !errors.Is(err, mocked) {
t.Fatal("not the error we expected")
}
if data != nil {
t.Fatal("expected no response here")
}
}
func TestDNSOverUDPWriteFailure(t *testing.T) {
mocked := errors.New("mocked error")
txp := resolver.NewDNSOverUDP(
resolver.FakeDialer{
Conn: &resolver.FakeConn{
WriteError: mocked,
},
}, "9.9.9.9:53",
)
data, err := txp.RoundTrip(context.Background(), nil)
if !errors.Is(err, mocked) {
t.Fatal("not the error we expected")
}
if data != nil {
t.Fatal("expected no response here")
}
}
func TestDNSOverUDPReadFailure(t *testing.T) {
mocked := errors.New("mocked error")
txp := resolver.NewDNSOverUDP(
resolver.FakeDialer{
Conn: &resolver.FakeConn{
ReadError: mocked,
},
}, "9.9.9.9:53",
)
data, err := txp.RoundTrip(context.Background(), nil)
if !errors.Is(err, mocked) {
t.Fatal("not the error we expected")
}
if data != nil {
t.Fatal("expected no response here")
}
}
func TestDNSOverUDPReadSuccess(t *testing.T) {
const expected = 17
txp := resolver.NewDNSOverUDP(
resolver.FakeDialer{
Conn: &resolver.FakeConn{ReadData: make([]byte, 17)},
}, "9.9.9.9:53",
)
data, err := txp.RoundTrip(context.Background(), nil)
if err != nil {
t.Fatal(err)
}
if len(data) != expected {
t.Fatal("expected non nil data")
}
}
func TestDNSOverUDPTransportOK(t *testing.T) {
const address = "9.9.9.9:53"
txp := resolver.NewDNSOverUDP(&net.Dialer{}, address)
if txp.RequiresPadding() != false {
t.Fatal("invalid RequiresPadding")
}
if txp.Network() != "udp" {
t.Fatal("invalid Network")
}
if txp.Address() != address {
t.Fatal("invalid Address")
}
}