tailscale/tstest/log_test.go
Wendi Yu a3fb422a39
ipn: tag and test for grinder log lines (#711)
Signed-off-by: Wendi <wendi.yu@yahoo.ca>
2020-08-25 12:42:54 -06:00

47 lines
940 B
Go

// Copyright (c) 2020 Tailscale Inc & AUTHORS All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
package tstest
import "testing"
func TestLogListener(t *testing.T) {
var (
l1 = "line 1: %s"
l2 = "line 2: %s"
l3 = "line 3: %s"
lineList = []string{l1, l2}
)
ll := ListenFor(t.Logf, lineList)
if len(ll.Check()) != len(lineList) {
t.Errorf("expected %v, got %v", lineList, ll.Check())
}
ll.Logf(l3, "hi")
if len(ll.Check()) != len(lineList) {
t.Errorf("expected %v, got %v", lineList, ll.Check())
}
ll.Logf(l1, "hi")
if len(ll.Check()) != len(lineList)-1 {
t.Errorf("expected %v, got %v", lineList, ll.Check())
}
ll.Logf(l1, "bye")
if len(ll.Check()) != len(lineList)-1 {
t.Errorf("expected %v, got %v", lineList, ll.Check())
}
ll.Logf(l2, "hi")
if ll.Check() != nil {
t.Errorf("expected empty list, got ll.Check()")
}
}