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// SPDX-License-Identifier: GPL-3.0-or-later
package fail2ban
import (
"errors"
"os"
"testing"
"github.com/netdata/netdata/go/plugins/plugin/go.d/agent/module"
"github.com/stretchr/testify/assert"
"github.com/stretchr/testify/require"
)
var (
dataConfigJSON, _ = os.ReadFile("testdata/config.json")
dataConfigYAML, _ = os.ReadFile("testdata/config.yaml")
dataStatus, _ = os.ReadFile("testdata/fail2ban-status.txt")
dataJailStatus, _ = os.ReadFile("testdata/fail2ban-jail-status.txt")
)
func Test_testDataIsValid(t *testing.T) {
for name, data := range map[string][]byte{
"dataConfigJSON": dataConfigJSON,
"dataConfigYAML": dataConfigYAML,
"dataStatus": dataStatus,
"dataJailStatus": dataJailStatus,
} {
require.NotNil(t, data, name)
}
}
func TestFail2Ban_Configuration(t *testing.T) {
module.TestConfigurationSerialize(t, &Fail2Ban{}, dataConfigJSON, dataConfigYAML)
}
func TestFail2Ban_Init(t *testing.T) {
tests := map[string]struct {
config Config
wantFail bool
}{
"fails if failed to locate ndsudo": {
wantFail: true,
config: New().Config,
},
}
for name, test := range tests {
t.Run(name, func(t *testing.T) {
f2b := New()
f2b.Config = test.config
if test.wantFail {
assert.Error(t, f2b.Init())
} else {
assert.NoError(t, f2b.Init())
}
})
}
}
func TestFail2Ban_Cleanup(t *testing.T) {
tests := map[string]struct {
prepare func() *Fail2Ban
}{
"not initialized exec": {
prepare: func() *Fail2Ban {
return New()
},
},
"after check": {
prepare: func() *Fail2Ban {
f2b := New()
f2b.exec = prepareMockOk()
_ = f2b.Check()
return f2b
},
},
"after collect": {
prepare: func() *Fail2Ban {
f2b := New()
f2b.exec = prepareMockOk()
_ = f2b.Collect()
return f2b
},
},
}
for name, test := range tests {
t.Run(name, func(t *testing.T) {
f2b := test.prepare()
assert.NotPanics(t, f2b.Cleanup)
})
}
}
func TestFail2Ban_Charts(t *testing.T) {
assert.NotNil(t, New().Charts())
}
func TestFail2Ban_Check(t *testing.T) {
tests := map[string]struct {
prepareMock func() *mockFail2BanClientCliExec
wantFail bool
}{
"success multiple jails": {
wantFail: false,
prepareMock: prepareMockOk,
},
"error on status": {
wantFail: true,
prepareMock: prepareMockErrOnStatus,
},
"empty response (no jails)": {
prepareMock: prepareMockEmptyResponse,
wantFail: true,
},
}
for name, test := range tests {
t.Run(name, func(t *testing.T) {
f2b := New()
mock := test.prepareMock()
f2b.exec = mock
if test.wantFail {
assert.Error(t, f2b.Check())
} else {
assert.NoError(t, f2b.Check())
}
})
}
}
func TestFail2Ban_Collect(t *testing.T) {
tests := map[string]struct {
prepareMock func() *mockFail2BanClientCliExec
wantMetrics map[string]int64
}{
"success multiple jails": {
prepareMock: prepareMockOk,
wantMetrics: map[string]int64{
"jail_dovecot_currently_banned": 30,
"jail_dovecot_currently_failed": 10,
"jail_sshd_currently_banned": 30,
"jail_sshd_currently_failed": 10,
},
},
"error on status": {
prepareMock: prepareMockErrOnStatus,
wantMetrics: nil,
},
"empty response (no jails)": {
prepareMock: prepareMockEmptyResponse,
wantMetrics: nil,
},
}
for name, test := range tests {
t.Run(name, func(t *testing.T) {
f2b := New()
mock := test.prepareMock()
f2b.exec = mock
mx := f2b.Collect()
assert.Equal(t, test.wantMetrics, mx)
if len(test.wantMetrics) > 0 {
assert.Len(t, *f2b.Charts(), len(jailChartsTmpl)*2)
testMetricsHasAllChartsDims(t, f2b, mx)
}
})
}
}
func testMetricsHasAllChartsDims(t *testing.T, f2b *Fail2Ban, mx map[string]int64) {
for _, chart := range *f2b.Charts() {
if chart.Obsolete {
continue
}
for _, dim := range chart.Dims {
_, ok := mx[dim.ID]
assert.Truef(t, ok, "collected metrics has no data for dim '%s' chart '%s'", dim.ID, chart.ID)
}
for _, v := range chart.Vars {
_, ok := mx[v.ID]
assert.Truef(t, ok, "collected metrics has no data for var '%s' chart '%s'", v.ID, chart.ID)
}
}
}
func prepareMockOk() *mockFail2BanClientCliExec {
return &mockFail2BanClientCliExec{
statusData: dataStatus,
jailStatusData: dataJailStatus,
}
}
func prepareMockErrOnStatus() *mockFail2BanClientCliExec {
return &mockFail2BanClientCliExec{
errOnStatus: true,
statusData: dataStatus,
jailStatusData: dataJailStatus,
}
}
func prepareMockEmptyResponse() *mockFail2BanClientCliExec {
return &mockFail2BanClientCliExec{}
}
type mockFail2BanClientCliExec struct {
errOnStatus bool
statusData []byte
errOnJailStatus bool
jailStatusData []byte
}
func (m *mockFail2BanClientCliExec) status() ([]byte, error) {
if m.errOnStatus {
return nil, errors.New("mock.status() error")
}
return m.statusData, nil
}
func (m *mockFail2BanClientCliExec) jailStatus(_ string) ([]byte, error) {
if m.errOnJailStatus {
return nil, errors.New("mock.jailStatus() error")
}
return m.jailStatusData, nil
}
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