Files
unpoller_unpoller/pkg/poller/inputs_test.go
T
Cody LeeandClaude Sonnet 5 cc60dc9239 Recover input plugin panics in poller goroutines (fixes #1030)
Metrics/Events/Initialize each fan out to input plugins in their own
goroutines with no recover(), so a panic there (e.g. a UniFi
controller returning an unexpected Site Speed Test aggregated-dashboard
payload) crashes the whole process with exit code 2. Because the
panic occurs in a child goroutine, promunifi's existing safeRefresh
recover() in the caller's goroutine never sees it, which is why the
crash survived the earlier robustness work. This converts a panicking
input into a logged/returned error so polling continues instead of
crashing.

Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>
2026-08-17 15:36:37 -05:00

67 lines
1.6 KiB
Go

package poller_test
import (
"testing"
"github.com/unpoller/unpoller/pkg/poller"
"github.com/stretchr/testify/assert"
"github.com/stretchr/testify/require"
)
// panicInput is an Input that panics on Metrics and Events, simulating a
// malformed controller response crashing an input plugin. See issue #1030.
type panicInput struct{}
func (panicInput) Initialize(poller.Logger) error { return nil }
func (panicInput) Metrics(*poller.Filter) (*poller.Metrics, error) {
panic("simulated aggregated-dashboard panic")
}
func (panicInput) Events(*poller.Filter) (*poller.Events, error) {
panic("simulated aggregated-dashboard panic")
}
func (panicInput) RawMetrics(*poller.Filter) ([]byte, error) { return nil, nil }
func (panicInput) DebugInput() (bool, error) { return false, nil }
func TestCollectMetricsRecoversPanickingInput(t *testing.T) {
t.Parallel()
collector := poller.NewTestCollector(t)
collector.AddInput(&poller.InputPlugin{Name: "panic-input", Input: panicInput{}})
var metrics *poller.Metrics
var err error
require.NotPanics(t, func() {
metrics, err = collector.Metrics(nil)
})
assert.NotNil(t, metrics)
require.Error(t, err)
assert.Contains(t, err.Error(), "panic-input")
}
func TestCollectEventsRecoversPanickingInput(t *testing.T) {
t.Parallel()
collector := poller.NewTestCollector(t)
collector.AddInput(&poller.InputPlugin{Name: "panic-input", Input: panicInput{}})
var events *poller.Events
var err error
require.NotPanics(t, func() {
events, err = collector.Events(nil)
})
assert.NotNil(t, events)
require.Error(t, err)
assert.Contains(t, err.Error(), "panic-input")
}