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chore: Adjust test and add comment about DNS resolution issue for failing tests (#16200)

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* chore: Add comment about DNS resolution issue for failing tests

Signed-off-by: zhengkezhou1 <madzhou1@gmail.com>

* remove unexported-return

Signed-off-by: zhengkezhou1 <madzhou1@gmail.com>

---------

Signed-off-by: zhengkezhou1 <madzhou1@gmail.com>
This commit is contained in:
Zhengke Zhou 2025-05-27 20:40:09 +08:00 committed by GitHub
parent 44f78bb3c8
commit 45211dc72f
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1 changed files with 3 additions and 1 deletions
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4
discovery/zookeeper/zookeeper_test.go
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@ -26,9 +26,11 @@ func TestMain(m *testing.M) {
goleak.VerifyTestMain(m) goleak.VerifyTestMain(m)
} }
// TestNewDiscoveryError can fail if the DNS resolver mistakenly resolves the domain below.
// See https://github.com/prometheus/prometheus/issues/16191 for a precedent.
func TestNewDiscoveryError(t *testing.T) { func TestNewDiscoveryError(t *testing.T) {
_, err := NewDiscovery( _, err := NewDiscovery(
[]string{"unreachable.test"}, []string{"unreachable.invalid"},
time.Second, []string{"/"}, time.Second, []string{"/"},
nil, nil,
func(_ []byte, _ string) (model.LabelSet, error) { return nil, nil }) func(_ []byte, _ string) (model.LabelSet, error) { return nil, nil })