fix panic in manager tests

internals/overlord/logstate/gatherer_test.go

@@ -18,6 +18,7 @@ import (
 	"io"
 	"time"
 
+	"github.com/canonical/pebble/internals/plan"
 	"gopkg.in/yaml.v3"
 
 	"github.com/canonical/pebble/internals/servicelog"
@@ -31,7 +32,7 @@ var _ = Suite(&gathererSuite{})
 
 func (s *gathererSuite) TestGathererTimeout(c *C) {
 	recv := make(chan []servicelog.Entry)
-	g := newLogGathererForTest(1*time.Microsecond, 2, recv)
+	g := newLogGathererForTest(nil, 1*time.Microsecond, 2, recv)
 	go g.loop()
 
 	entry := servicelog.Entry{
@@ -50,8 +51,12 @@ func (s *gathererSuite) TestGathererTimeout(c *C) {
 	}
 }
 
-func newLogGathererForTest(tickPeriod time.Duration, bufferCapacity int, recv chan []servicelog.Entry) *logGatherer {
+func newLogGathererForTest(
+	target *plan.LogTarget,
+	tickPeriod time.Duration, bufferCapacity int, recv chan []servicelog.Entry,
+) *logGatherer {
 	return &logGatherer{
+		target:     target,
 		tickPeriod: tickPeriod,
 		buffer: &testBuffer{
 			capacity: bufferCapacity,

internals/overlord/logstate/manager_test.go

@@ -16,6 +16,7 @@ package logstate
 import (
 	"bytes"
 	"sync"
+	"time"
 
 	"github.com/canonical/pebble/internals/logger"
 	"github.com/canonical/pebble/internals/plan"
@@ -40,7 +41,7 @@ func (s *managerSuite) TearDownTest(c *C) {
 }
 
 func (s *managerSuite) TestLogManager(c *C) {
-	m := newLogManagerForTest()
+	m := newLogManagerForTest(1*time.Second, 10, make(chan []servicelog.Entry))
 	// Fake ringbuffer so that log manager can create forwarders
 	rb := servicelog.RingBuffer{}
 
@@ -207,19 +208,22 @@ func checkGatherers(c *C, gatherers map[string]*logGatherer, expected []string)
 //}
 
 func (s *managerSuite) TestFlushLogsOnInterrupt(c *C) {
-	m := newLogManagerForTest()
+	m := newLogManagerForTest(1*time.Second, 10, make(chan []servicelog.Entry))
 
 	m.Stop()
 
 	// check buffered logs are sent through
 }
 
-func newLogManagerForTest() *LogManager {
-	return NewLogManager()
-	//return &LogManager{
-	//	forwarders:   map[string]*logForwarder{},
-	//	gatherers:    map[string]*logGatherer{},
-	//	newForwarder: newLogForwarderForTest,
-	//	newGatherer:  newLogGathererForTest,
-	//}
+func newLogManagerForTest(
+	tickPeriod time.Duration, bufferCapacity int, recv chan []servicelog.Entry,
+) *LogManager {
+	return &LogManager{
+		forwarders:   map[string]*logForwarder{},
+		gatherers:    map[string]*logGatherer{},
+		newForwarder: newLogForwarder, // ForTest ?
+		newGatherer: func(target *plan.LogTarget) *logGatherer {
+			return newLogGathererForTest(target, tickPeriod, bufferCapacity, recv)
+		},
+	}
 }