Remove broken test, replace with simpler one

server/topic_test.go

@@ -0,0 +1,30 @@
+package server
+
+import (
+	"github.com/stretchr/testify/require"
+	"sync/atomic"
+	"testing"
+)
+
+func TestTopic_CancelSubscribers(t *testing.T) {
+	t.Parallel()
+
+	subFn := func(v *visitor, msg *message) error {
+		return nil
+	}
+	canceled1 := atomic.Bool{}
+	cancelFn1 := func() {
+		canceled1.Store(true)
+	}
+	canceled2 := atomic.Bool{}
+	cancelFn2 := func() {
+		canceled2.Store(true)
+	}
+	to := newTopic("mytopic")
+	to.Subscribe(subFn, "", cancelFn1)
+	to.Subscribe(subFn, "u_phil", cancelFn2)
+
+	to.CancelSubscribers("u_phil")
+	require.True(t, canceled1.Load())
+	require.False(t, canceled2.Load())
+}