| 1 | // SPDX-License-Identifier: GPL-3.0-or-later |
| 2 | |
| 3 | package uwsgi |
| 4 | |
| 5 | import ( |
| 6 | "context" |
| 7 | "errors" |
| 8 | "os" |
| 9 | "testing" |
| 10 | |
| 11 | "github.com/netdata/netdata/go/plugins/plugin/go.d/pkg/collecttest" |
| 12 | |
| 13 | "github.com/stretchr/testify/assert" |
| 14 | "github.com/stretchr/testify/require" |
| 15 | ) |
| 16 | |
| 17 | var ( |
| 18 | dataConfigJSON, _ = os.ReadFile("testdata/config.json") |
| 19 | dataConfigYAML, _ = os.ReadFile("testdata/config.yaml") |
| 20 | |
| 21 | dataStats, _ = os.ReadFile("testdata/stats.json") |
| 22 | dataStatsNoWorkers, _ = os.ReadFile("testdata/stats_no_workers.json") |
| 23 | ) |
| 24 | |
| 25 | func Test_testDataIsValid(t *testing.T) { |
| 26 | for name, data := range map[string][]byte{ |
| 27 | "dataConfigJSON": dataConfigJSON, |
| 28 | "dataConfigYAML": dataConfigYAML, |
| 29 | "dataStats": dataStats, |
| 30 | "dataStatsNoWorkers": dataStatsNoWorkers, |
| 31 | } { |
| 32 | require.NotNil(t, data, name) |
| 33 | } |
| 34 | } |
| 35 | |
| 36 | func TestCollector_ConfigurationSerialize(t *testing.T) { |
| 37 | collecttest.TestConfigurationSerialize(t, &Collector{}, dataConfigJSON, dataConfigYAML) |
| 38 | } |
| 39 | |
| 40 | func TestCollector_Init(t *testing.T) { |
| 41 | tests := map[string]struct { |
| 42 | config Config |
| 43 | wantFail bool |
| 44 | }{ |
| 45 | "success with default config": { |
| 46 | wantFail: false, |
| 47 | config: New().Config, |
| 48 | }, |
| 49 | "fails if address not set": { |
| 50 | wantFail: true, |
| 51 | config: func() Config { |
| 52 | conf := New().Config |
| 53 | conf.Address = "" |
| 54 | return conf |
| 55 | }(), |
| 56 | }, |
| 57 | } |
| 58 | |
| 59 | for name, test := range tests { |
| 60 | t.Run(name, func(t *testing.T) { |
| 61 | collr := New() |
| 62 | collr.Config = test.config |
| 63 | |
| 64 | if test.wantFail { |
| 65 | assert.Error(t, collr.Init(context.Background())) |
| 66 | } else { |
| 67 | assert.NoError(t, collr.Init(context.Background())) |
| 68 | } |
| 69 | }) |
| 70 | } |
| 71 | } |
| 72 | |
| 73 | func TestCollector_Cleanup(t *testing.T) { |
| 74 | tests := map[string]struct { |
| 75 | prepare func() *Collector |
| 76 | }{ |
| 77 | "not initialized": { |
| 78 | prepare: func() *Collector { |
| 79 | return New() |
| 80 | }, |
| 81 | }, |
| 82 | "after check": { |
| 83 | prepare: func() *Collector { |
| 84 | collr := New() |
| 85 | collr.conn = prepareMockOk() |
| 86 | _ = collr.Check(context.Background()) |
| 87 | return collr |
| 88 | }, |
| 89 | }, |
| 90 | "after collect": { |
| 91 | prepare: func() *Collector { |
| 92 | collr := New() |
| 93 | collr.conn = prepareMockOk() |
| 94 | _ = collr.Collect(context.Background()) |
| 95 | return collr |
| 96 | }, |
| 97 | }, |
| 98 | } |
| 99 | |
| 100 | for name, test := range tests { |
| 101 | t.Run(name, func(t *testing.T) { |
| 102 | collr := test.prepare() |
| 103 | |
| 104 | assert.NotPanics(t, func() { collr.Cleanup(context.Background()) }) |
| 105 | }) |
| 106 | } |
| 107 | } |
| 108 | |
| 109 | func TestCollector_Charts(t *testing.T) { |
| 110 | assert.NotNil(t, New().Charts()) |
| 111 | } |
| 112 | |
| 113 | func TestCollector_Check(t *testing.T) { |
| 114 | tests := map[string]struct { |
| 115 | prepareMock func() *mockUwsgiConn |
| 116 | wantFail bool |
| 117 | }{ |
| 118 | "success case": { |
| 119 | wantFail: false, |
| 120 | prepareMock: prepareMockOk, |
| 121 | }, |
| 122 | "success case no workers": { |
| 123 | wantFail: false, |
| 124 | prepareMock: prepareMockOkNoWorkers, |
| 125 | }, |
| 126 | "unexpected response": { |
| 127 | wantFail: true, |
| 128 | prepareMock: prepareMockUnexpectedResponse, |
| 129 | }, |
| 130 | "empty response": { |
| 131 | wantFail: true, |
| 132 | prepareMock: prepareMockEmptyResponse, |
| 133 | }, |
| 134 | } |
| 135 | |
| 136 | for name, test := range tests { |
| 137 | t.Run(name, func(t *testing.T) { |
| 138 | collr := New() |
| 139 | mock := test.prepareMock() |
| 140 | collr.conn = mock |
| 141 | |
| 142 | if test.wantFail { |
| 143 | assert.Error(t, collr.Check(context.Background())) |
| 144 | } else { |
| 145 | assert.NoError(t, collr.Check(context.Background())) |
| 146 | } |
| 147 | }) |
| 148 | } |
| 149 | } |
| 150 | |
| 151 | func TestCollector_Collect(t *testing.T) { |
| 152 | tests := map[string]struct { |
| 153 | prepareMock func() *mockUwsgiConn |
| 154 | wantMetrics map[string]int64 |
| 155 | wantCharts int |
| 156 | disconnectBeforeCleanup bool |
| 157 | disconnectAfterCleanup bool |
| 158 | }{ |
| 159 | "success case": { |
| 160 | prepareMock: prepareMockOk, |
| 161 | wantCharts: len(charts) + len(workerChartsTmpl)*2, |
| 162 | disconnectBeforeCleanup: true, |
| 163 | disconnectAfterCleanup: true, |
| 164 | wantMetrics: map[string]int64{ |
| 165 | "worker_1_average_request_time": 1, |
| 166 | "worker_1_delta_requests": 1, |
| 167 | "worker_1_exceptions": 1, |
| 168 | "worker_1_harakiris": 1, |
| 169 | "worker_1_memory_rss": 1, |
| 170 | "worker_1_memory_vsz": 1, |
| 171 | "worker_1_request_handling_status_accepting": 1, |
| 172 | "worker_1_request_handling_status_not_accepting": 0, |
| 173 | "worker_1_requests": 1, |
| 174 | "worker_1_respawns": 1, |
| 175 | "worker_1_status_busy": 0, |
| 176 | "worker_1_status_cheap": 0, |
| 177 | "worker_1_status_idle": 1, |
| 178 | "worker_1_status_pause": 0, |
| 179 | "worker_1_status_sig": 0, |
| 180 | "worker_1_tx": 1, |
| 181 | "worker_2_average_request_time": 1, |
| 182 | "worker_2_delta_requests": 1, |
| 183 | "worker_2_exceptions": 1, |
| 184 | "worker_2_harakiris": 1, |
| 185 | "worker_2_memory_rss": 1, |
| 186 | "worker_2_memory_vsz": 1, |
| 187 | "worker_2_request_handling_status_accepting": 1, |
| 188 | "worker_2_request_handling_status_not_accepting": 0, |
| 189 | "worker_2_requests": 1, |
| 190 | "worker_2_respawns": 1, |
| 191 | "worker_2_status_busy": 0, |
| 192 | "worker_2_status_cheap": 0, |
| 193 | "worker_2_status_idle": 1, |
| 194 | "worker_2_status_pause": 0, |
| 195 | "worker_2_status_sig": 0, |
| 196 | "worker_2_tx": 1, |
| 197 | "workers_exceptions": 2, |
| 198 | "workers_harakiris": 2, |
| 199 | "workers_requests": 2, |
| 200 | "workers_respawns": 2, |
| 201 | "workers_tx": 2, |
| 202 | }, |
| 203 | }, |
| 204 | "success case no workers": { |
| 205 | prepareMock: prepareMockOkNoWorkers, |
| 206 | wantCharts: len(charts), |
| 207 | wantMetrics: map[string]int64{ |
| 208 | "workers_exceptions": 0, |
| 209 | "workers_harakiris": 0, |
| 210 | "workers_requests": 0, |
| 211 | "workers_respawns": 0, |
| 212 | "workers_tx": 0, |
| 213 | }, |
| 214 | disconnectBeforeCleanup: true, |
| 215 | disconnectAfterCleanup: true, |
| 216 | }, |
| 217 | "unexpected response": { |
| 218 | prepareMock: prepareMockUnexpectedResponse, |
| 219 | wantCharts: len(charts), |
| 220 | disconnectBeforeCleanup: true, |
| 221 | disconnectAfterCleanup: true, |
| 222 | }, |
| 223 | "empty response": { |
| 224 | prepareMock: prepareMockEmptyResponse, |
| 225 | wantCharts: len(charts), |
| 226 | disconnectBeforeCleanup: true, |
| 227 | disconnectAfterCleanup: true, |
| 228 | }, |
| 229 | "err on query stats": { |
| 230 | prepareMock: prepareMockErrOnQueryStats, |
| 231 | wantCharts: len(charts), |
| 232 | disconnectBeforeCleanup: true, |
| 233 | disconnectAfterCleanup: true, |
| 234 | }, |
| 235 | } |
| 236 | |
| 237 | for name, test := range tests { |
| 238 | t.Run(name, func(t *testing.T) { |
| 239 | collr := New() |
| 240 | mock := test.prepareMock() |
| 241 | collr.conn = mock |
| 242 | |
| 243 | mx := collr.Collect(context.Background()) |
| 244 | |
| 245 | require.Equal(t, test.wantMetrics, mx) |
| 246 | |
| 247 | if len(test.wantMetrics) > 0 { |
| 248 | collecttest.TestMetricsHasAllChartsDims(t, collr.Charts(), mx) |
| 249 | } |
| 250 | assert.Equal(t, test.wantCharts, len(*collr.Charts()), "want charts") |
| 251 | }) |
| 252 | } |
| 253 | } |
| 254 | |
| 255 | func prepareMockOk() *mockUwsgiConn { |
| 256 | return &mockUwsgiConn{ |
| 257 | statsResponse: dataStats, |
| 258 | } |
| 259 | } |
| 260 | |
| 261 | func prepareMockOkNoWorkers() *mockUwsgiConn { |
| 262 | return &mockUwsgiConn{ |
| 263 | statsResponse: dataStatsNoWorkers, |
| 264 | } |
| 265 | } |
| 266 | |
| 267 | func prepareMockErrOnQueryStats() *mockUwsgiConn { |
| 268 | return &mockUwsgiConn{ |
| 269 | errOnQueryStats: true, |
| 270 | } |
| 271 | } |
| 272 | |
| 273 | func prepareMockUnexpectedResponse() *mockUwsgiConn { |
| 274 | return &mockUwsgiConn{ |
| 275 | statsResponse: []byte("Lorem ipsum dolor sit amet, consectetur adipiscing elit."), |
| 276 | } |
| 277 | } |
| 278 | |
| 279 | func prepareMockEmptyResponse() *mockUwsgiConn { |
| 280 | return &mockUwsgiConn{} |
| 281 | } |
| 282 | |
| 283 | type mockUwsgiConn struct { |
| 284 | errOnQueryStats bool |
| 285 | statsResponse []byte |
| 286 | } |
| 287 | |
| 288 | func (m *mockUwsgiConn) queryStats() ([]byte, error) { |
| 289 | if m.errOnQueryStats { |
| 290 | return nil, errors.New("mock.queryStats() error") |
| 291 | } |
| 292 | return m.statsResponse, nil |
| 293 | } |