Files
buildx/dap/adapter_test.go
T
Jonathan A. Sternberg 8841b2dfc8 dap: ensure test client is closed on cleanup
The dap test wasn't waiting for the client's goroutines to complete
before exiting which caused a race condition that could cause it to log
to the dead test logger. This became apparent when `--count` of greater
than one was used since it caused the test to run long enough to trigger
the behavior. It would have also triggered if we had added more tests.

Add the client close to the cleanup so it waits for the goroutine to
finish before the test exits as it was properly supposed to do.

Signed-off-by: Jonathan A. Sternberg <jonathan.sternberg@docker.com>
2025-09-03 10:51:01 -05:00

131 lines
2.9 KiB
Go

package dap
import (
"context"
"encoding/json"
"io"
"testing"
"time"
"github.com/docker/buildx/dap/common"
"github.com/google/go-dap"
"github.com/stretchr/testify/assert"
"golang.org/x/sync/errgroup"
)
func TestLaunch(t *testing.T) {
adapter, conn, client := NewTestAdapter[common.Config](t)
ctx, cancel := context.WithTimeoutCause(context.Background(), 10*time.Second, context.DeadlineExceeded)
defer cancel()
eg, _ := errgroup.WithContext(ctx)
eg.Go(func() error {
_, err := adapter.Start(ctx, conn)
assert.NoError(t, err)
return nil
})
var (
initialized = make(chan struct{})
configurationDone <-chan *dap.ConfigurationDoneResponse
)
client.RegisterEvent("initialized", func(em dap.EventMessage) {
// Send configuration done since we don't do any configuration.
configurationDone = DoRequest[*dap.ConfigurationDoneResponse](t, client, &dap.ConfigurationDoneRequest{
Request: dap.Request{Command: "configurationDone"},
})
close(initialized)
})
eg.Go(func() error {
initializeResp := <-DoRequest[*dap.InitializeResponse](t, client, &dap.InitializeRequest{
Request: dap.Request{Command: "initialize"},
})
assert.True(t, initializeResp.Success)
assert.True(t, initializeResp.Body.SupportsConfigurationDoneRequest)
launchResp := <-DoRequest[*dap.LaunchResponse](t, client, &dap.LaunchRequest{
Request: dap.Request{Command: "launch"},
})
assert.True(t, launchResp.Success)
// We should have received the initialized event.
select {
case <-initialized:
default:
assert.Fail(t, "did not receive initialized event")
}
select {
case <-configurationDone:
case <-time.After(10 * time.Second):
assert.Fail(t, "did not receive configurationDone response")
}
return nil
})
eg.Wait()
}
func NewTestAdapter[C LaunchConfig](t *testing.T) (*Adapter[C], Conn, *Client) {
t.Helper()
rd1, wr1 := io.Pipe()
rd2, wr2 := io.Pipe()
srvConn := logConn(t, "server", NewConn(rd1, wr2))
t.Cleanup(func() {
srvConn.Close()
})
clientConn := logConn(t, "client", NewConn(rd2, wr1))
t.Cleanup(func() { clientConn.Close() })
adapter := New[C]()
t.Cleanup(func() { adapter.Stop() })
client := NewClient(clientConn)
t.Cleanup(func() { client.Close() })
return adapter, srvConn, client
}
func logConn(t *testing.T, prefix string, conn Conn) Conn {
return &loggingConn{
Conn: conn,
t: t,
prefix: prefix,
}
}
type loggingConn struct {
Conn
t *testing.T
prefix string
}
func (c *loggingConn) SendMsg(m dap.Message) error {
b, _ := json.Marshal(m)
c.t.Logf("[%s] send: %v", c.prefix, string(b))
err := c.Conn.SendMsg(m)
if err != nil {
c.t.Logf("[%s] send error: %v", c.prefix, err)
}
return err
}
func (c *loggingConn) RecvMsg(ctx context.Context) (dap.Message, error) {
m, err := c.Conn.RecvMsg(ctx)
if err != nil {
c.t.Logf("[%s] recv error: %v", c.prefix, err)
return nil, err
}
b, _ := json.Marshal(m)
c.t.Logf("[%s] recv: %v", c.prefix, string(b))
return m, nil
}