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| 1 // Copyright 2012, 2013 Canonical Ltd. | |
| 2 // Licensed under the AGPLv3, see LICENCE file for details. | |
| 3 | |
| 4 package apiuniter_test | |
| 5 | |
| 6 import ( | |
| 7 "fmt" | |
| 8 "io/ioutil" | |
| 9 "os" | |
| 10 "path/filepath" | |
| 11 "strings" | |
| 12 "time" | |
| 13 | |
| 14 gc "launchpad.net/gocheck" | |
| 15 | |
| 16 "launchpad.net/juju-core/charm" | |
| 17 "launchpad.net/juju-core/juju/testing" | |
| 18 "launchpad.net/juju-core/state" | |
| 19 "launchpad.net/juju-core/state/api" | |
| 20 "launchpad.net/juju-core/state/api/params" | |
| 21 "launchpad.net/juju-core/state/api/uniter" | |
| 22 "launchpad.net/juju-core/utils" | |
| 23 "launchpad.net/juju-core/worker/apiuniter" | |
| 24 "launchpad.net/juju-core/worker/apiuniter/jujuc" | |
| 25 ) | |
| 26 | |
| 27 type RunHookSuite struct { | |
| 28 HookContextSuite | |
| 29 } | |
| 30 | |
| 31 var _ = gc.Suite(&RunHookSuite{}) | |
| 32 | |
| 33 type hookSpec struct { | |
| 34 // name is the name of the hook. | |
| 35 name string | |
| 36 // perm is the file permissions of the hook. | |
| 37 perm os.FileMode | |
| 38 // code is the exit status of the hook. | |
| 39 code int | |
| 40 // stdout holds a string to print to stdout | |
| 41 stdout string | |
| 42 // stderr holds a string to print to stderr | |
| 43 stderr string | |
| 44 // background holds a string to print in the background after 0.2s. | |
| 45 background string | |
| 46 } | |
| 47 | |
| 48 // makeCharm constructs a fake charm dir containing a single named hook | |
| 49 // with permissions perm and exit code code. If output is non-empty, | |
| 50 // the charm will write it to stdout and stderr, with each one prefixed | |
| 51 // by name of the stream. It returns the charm directory and the path | |
| 52 // to which the hook script will write environment variables. | |
| 53 func makeCharm(c *gc.C, spec hookSpec) (charmDir, outPath string) { | |
| 54 charmDir = c.MkDir() | |
| 55 hooksDir := filepath.Join(charmDir, "hooks") | |
| 56 err := os.Mkdir(hooksDir, 0755) | |
| 57 c.Assert(err, gc.IsNil) | |
| 58 c.Logf("openfile perm %v", spec.perm) | |
| 59 hook, err := os.OpenFile(filepath.Join(hooksDir, spec.name), os.O_CREATE
|os.O_WRONLY, spec.perm) | |
| 60 c.Assert(err, gc.IsNil) | |
| 61 defer hook.Close() | |
| 62 printf := func(f string, a ...interface{}) { | |
| 63 if _, err := fmt.Fprintf(hook, f+"\n", a...); err != nil { | |
| 64 panic(err) | |
| 65 } | |
| 66 } | |
| 67 outPath = filepath.Join(c.MkDir(), "hook.out") | |
| 68 printf("#!/bin/bash") | |
| 69 printf("env > " + outPath) | |
| 70 if spec.stdout != "" { | |
| 71 printf("echo %s", spec.stdout) | |
| 72 } | |
| 73 if spec.stderr != "" { | |
| 74 printf("echo %s >&2", spec.stderr) | |
| 75 } | |
| 76 if spec.background != "" { | |
| 77 // Print something fairly quickly, then sleep for | |
| 78 // quite a long time - if the hook execution is | |
| 79 // blocking because of the background process, | |
| 80 // the hook execution will take much longer than | |
| 81 // expected. | |
| 82 printf("(sleep 0.2; echo %s; sleep 10) &", spec.background) | |
| 83 } | |
| 84 printf("exit %d", spec.code) | |
| 85 return charmDir, outPath | |
| 86 } | |
| 87 | |
| 88 func AssertEnvContains(c *gc.C, lines []string, env map[string]string) { | |
| 89 for k, v := range env { | |
| 90 sought := k + "=" + v | |
| 91 found := false | |
| 92 for _, line := range lines { | |
| 93 if line == sought { | |
| 94 found = true | |
| 95 continue | |
| 96 } | |
| 97 } | |
| 98 comment := gc.Commentf("expected to find %v among %v", sought, l
ines) | |
| 99 c.Assert(found, gc.Equals, true, comment) | |
| 100 } | |
| 101 } | |
| 102 | |
| 103 func AssertEnv(c *gc.C, outPath string, charmDir string, env map[string]string,
uuid string) { | |
| 104 out, err := ioutil.ReadFile(outPath) | |
| 105 c.Assert(err, gc.IsNil) | |
| 106 lines := strings.Split(string(out), "\n") | |
| 107 AssertEnvContains(c, lines, env) | |
| 108 AssertEnvContains(c, lines, map[string]string{ | |
| 109 "DEBIAN_FRONTEND": "noninteractive", | |
| 110 "APT_LISTCHANGES_FRONTEND": "none", | |
| 111 "CHARM_DIR": charmDir, | |
| 112 "JUJU_AGENT_SOCKET": "/path/to/socket", | |
| 113 "JUJU_ENV_UUID": uuid, | |
| 114 }) | |
| 115 } | |
| 116 | |
| 117 // LineBufferSize matches the constant used when creating | |
| 118 // the bufio line reader. | |
| 119 const lineBufferSize = 4096 | |
| 120 | |
| 121 var apiAddrs = []string{"a1:123", "a2:123"} | |
| 122 var expectedApiAddrs = strings.Join(apiAddrs, " ") | |
| 123 | |
| 124 var runHookTests = []struct { | |
| 125 summary string | |
| 126 relid int | |
| 127 remote string | |
| 128 spec hookSpec | |
| 129 err string | |
| 130 env map[string]string | |
| 131 }{ | |
| 132 { | |
| 133 summary: "missing hook is not an error", | |
| 134 relid: -1, | |
| 135 }, { | |
| 136 summary: "report failure to execute hook", | |
| 137 relid: -1, | |
| 138 spec: hookSpec{perm: 0600}, | |
| 139 err: `exec: .*something-happened": permission denied`, | |
| 140 }, { | |
| 141 summary: "report error indicated by hook's exit status", | |
| 142 relid: -1, | |
| 143 spec: hookSpec{ | |
| 144 perm: 0700, | |
| 145 code: 99, | |
| 146 }, | |
| 147 err: "exit status 99", | |
| 148 }, { | |
| 149 summary: "output logging", | |
| 150 relid: -1, | |
| 151 spec: hookSpec{ | |
| 152 perm: 0700, | |
| 153 stdout: "stdout", | |
| 154 stderr: "stderr", | |
| 155 }, | |
| 156 }, { | |
| 157 summary: "output logging with background process", | |
| 158 relid: -1, | |
| 159 spec: hookSpec{ | |
| 160 perm: 0700, | |
| 161 stdout: "stdout", | |
| 162 background: "not printed", | |
| 163 }, | |
| 164 }, { | |
| 165 summary: "long line split", | |
| 166 relid: -1, | |
| 167 spec: hookSpec{ | |
| 168 perm: 0700, | |
| 169 stdout: strings.Repeat("a", lineBufferSize+10), | |
| 170 }, | |
| 171 }, { | |
| 172 summary: "check shell environment for non-relation hook context"
, | |
| 173 relid: -1, | |
| 174 spec: hookSpec{perm: 0700}, | |
| 175 env: map[string]string{ | |
| 176 "JUJU_UNIT_NAME": "u/0", | |
| 177 "JUJU_API_ADDRESSES": expectedApiAddrs, | |
| 178 }, | |
| 179 }, { | |
| 180 summary: "check shell environment for relation-broken hook conte
xt", | |
| 181 relid: 1, | |
| 182 spec: hookSpec{perm: 0700}, | |
| 183 env: map[string]string{ | |
| 184 "JUJU_UNIT_NAME": "u/0", | |
| 185 "JUJU_API_ADDRESSES": expectedApiAddrs, | |
| 186 "JUJU_RELATION": "db", | |
| 187 "JUJU_RELATION_ID": "db:1", | |
| 188 "JUJU_REMOTE_UNIT": "", | |
| 189 }, | |
| 190 }, { | |
| 191 summary: "check shell environment for relation hook context", | |
| 192 relid: 1, | |
| 193 remote: "r/1", | |
| 194 spec: hookSpec{perm: 0700}, | |
| 195 env: map[string]string{ | |
| 196 "JUJU_UNIT_NAME": "u/0", | |
| 197 "JUJU_API_ADDRESSES": expectedApiAddrs, | |
| 198 "JUJU_RELATION": "db", | |
| 199 "JUJU_RELATION_ID": "db:1", | |
| 200 "JUJU_REMOTE_UNIT": "r/1", | |
| 201 }, | |
| 202 }, | |
| 203 } | |
| 204 | |
| 205 func (s *RunHookSuite) TestRunHook(c *gc.C) { | |
| 206 uuid, err := utils.NewUUID() | |
| 207 c.Assert(err, gc.IsNil) | |
| 208 for i, t := range runHookTests { | |
| 209 c.Logf("test %d: %s; perm %v", i, t.summary, t.spec.perm) | |
| 210 ctx := s.GetHookContext(c, uuid.String(), t.relid, t.remote) | |
| 211 var charmDir, outPath string | |
| 212 if t.spec.perm == 0 { | |
| 213 charmDir = c.MkDir() | |
| 214 } else { | |
| 215 spec := t.spec | |
| 216 spec.name = "something-happened" | |
| 217 c.Logf("makeCharm %#v", spec) | |
| 218 charmDir, outPath = makeCharm(c, spec) | |
| 219 } | |
| 220 toolsDir := c.MkDir() | |
| 221 t0 := time.Now() | |
| 222 err := ctx.RunHook("something-happened", charmDir, toolsDir, "/p
ath/to/socket") | |
| 223 if t.err == "" { | |
| 224 c.Assert(err, gc.IsNil) | |
| 225 } else { | |
| 226 c.Assert(err, gc.ErrorMatches, t.err) | |
| 227 } | |
| 228 if t.env != nil { | |
| 229 env := map[string]string{"PATH": toolsDir + ":" + os.Get
env("PATH")} | |
| 230 for k, v := range t.env { | |
| 231 env[k] = v | |
| 232 } | |
| 233 AssertEnv(c, outPath, charmDir, env, uuid.String()) | |
| 234 } | |
| 235 if t.spec.background != "" && time.Now().Sub(t0) > 5*time.Second
{ | |
| 236 c.Errorf("background process holding up hook execution") | |
| 237 } | |
| 238 } | |
| 239 } | |
| 240 | |
| 241 // split the line into buffer-sized lengths. | |
| 242 func splitLine(s string) []string { | |
| 243 var ss []string | |
| 244 for len(s) > lineBufferSize { | |
| 245 ss = append(ss, s[0:lineBufferSize]) | |
| 246 s = s[lineBufferSize:] | |
| 247 } | |
| 248 if len(s) > 0 { | |
| 249 ss = append(ss, s) | |
| 250 } | |
| 251 return ss | |
| 252 } | |
| 253 | |
| 254 func (s *RunHookSuite) TestRunHookRelationFlushing(c *gc.C) { | |
| 255 // Create a charm with a breaking hook. | |
| 256 uuid, err := utils.NewUUID() | |
| 257 c.Assert(err, gc.IsNil) | |
| 258 ctx := s.GetHookContext(c, uuid.String(), -1, "") | |
| 259 charmDir, _ := makeCharm(c, hookSpec{ | |
| 260 name: "something-happened", | |
| 261 perm: 0700, | |
| 262 code: 123, | |
| 263 }) | |
| 264 | |
| 265 // Mess with multiple relation settings. | |
| 266 node0, err := s.relctxs[0].Settings() | |
| 267 node0.Set("foo", "1") | |
| 268 node1, err := s.relctxs[1].Settings() | |
| 269 node1.Set("bar", "2") | |
| 270 | |
| 271 // Run the failing hook. | |
| 272 err = ctx.RunHook("something-happened", charmDir, c.MkDir(), "/path/to/s
ocket") | |
| 273 c.Assert(err, gc.ErrorMatches, "exit status 123") | |
| 274 | |
| 275 // Check that the changes to the local settings nodes have been discarde
d. | |
| 276 node0, err = s.relctxs[0].Settings() | |
| 277 c.Assert(err, gc.IsNil) | |
| 278 c.Assert(node0.Map(), gc.DeepEquals, params.Settings{"relation-name": "d
b0"}) | |
| 279 node1, err = s.relctxs[1].Settings() | |
| 280 c.Assert(err, gc.IsNil) | |
| 281 c.Assert(node1.Map(), gc.DeepEquals, params.Settings{"relation-name": "d
b1"}) | |
| 282 | |
| 283 // Check that the changes have been written to state. | |
| 284 settings0, err := s.relunits[0].ReadSettings("u/0") | |
| 285 c.Assert(err, gc.IsNil) | |
| 286 c.Assert(settings0, gc.DeepEquals, map[string]interface{}{"relation-name
": "db0"}) | |
| 287 settings1, err := s.relunits[1].ReadSettings("u/0") | |
| 288 c.Assert(err, gc.IsNil) | |
| 289 c.Assert(settings1, gc.DeepEquals, map[string]interface{}{"relation-name
": "db1"}) | |
| 290 | |
| 291 // Create a charm with a working hook, and mess with settings again. | |
| 292 charmDir, _ = makeCharm(c, hookSpec{ | |
| 293 name: "something-happened", | |
| 294 perm: 0700, | |
| 295 }) | |
| 296 node0.Set("baz", "3") | |
| 297 node1.Set("qux", "4") | |
| 298 | |
| 299 // Run the hook. | |
| 300 err = ctx.RunHook("something-happened", charmDir, c.MkDir(), "/path/to/s
ocket") | |
| 301 c.Assert(err, gc.IsNil) | |
| 302 | |
| 303 // Check that the changes to the local settings nodes are still there. | |
| 304 node0, err = s.relctxs[0].Settings() | |
| 305 c.Assert(err, gc.IsNil) | |
| 306 c.Assert(node0.Map(), gc.DeepEquals, params.Settings{ | |
| 307 "relation-name": "db0", | |
| 308 "baz": "3", | |
| 309 }) | |
| 310 node1, err = s.relctxs[1].Settings() | |
| 311 c.Assert(err, gc.IsNil) | |
| 312 c.Assert(node1.Map(), gc.DeepEquals, params.Settings{ | |
| 313 "relation-name": "db1", | |
| 314 "qux": "4", | |
| 315 }) | |
| 316 | |
| 317 // Check that the changes have been written to state. | |
| 318 settings0, err = s.relunits[0].ReadSettings("u/0") | |
| 319 c.Assert(err, gc.IsNil) | |
| 320 c.Assert(settings0, gc.DeepEquals, map[string]interface{}{ | |
| 321 "relation-name": "db0", | |
| 322 "baz": "3", | |
| 323 }) | |
| 324 settings1, err = s.relunits[1].ReadSettings("u/0") | |
| 325 c.Assert(err, gc.IsNil) | |
| 326 c.Assert(settings1, gc.DeepEquals, map[string]interface{}{ | |
| 327 "relation-name": "db1", | |
| 328 "qux": "4", | |
| 329 }) | |
| 330 } | |
| 331 | |
| 332 type ContextRelationSuite struct { | |
| 333 testing.JujuConnSuite | |
| 334 svc *state.Service | |
| 335 rel *state.Relation | |
| 336 ru *state.RelationUnit | |
| 337 | |
| 338 st *api.State | |
| 339 uniter *uniter.State | |
| 340 apiRelUnit *uniter.RelationUnit | |
| 341 } | |
| 342 | |
| 343 var _ = gc.Suite(&ContextRelationSuite{}) | |
| 344 | |
| 345 func (s *ContextRelationSuite) SetUpTest(c *gc.C) { | |
| 346 s.JujuConnSuite.SetUpTest(c) | |
| 347 ch := s.AddTestingCharm(c, "riak") | |
| 348 var err error | |
| 349 s.svc, err = s.State.AddService("u", ch) | |
| 350 c.Assert(err, gc.IsNil) | |
| 351 rels, err := s.svc.Relations() | |
| 352 c.Assert(err, gc.IsNil) | |
| 353 c.Assert(rels, gc.HasLen, 1) | |
| 354 s.rel = rels[0] | |
| 355 unit, err := s.svc.AddUnit() | |
| 356 c.Assert(err, gc.IsNil) | |
| 357 s.ru, err = s.rel.Unit(unit) | |
| 358 c.Assert(err, gc.IsNil) | |
| 359 err = s.ru.EnterScope(nil) | |
| 360 c.Assert(err, gc.IsNil) | |
| 361 | |
| 362 err = unit.SetPassword("password") | |
| 363 c.Assert(err, gc.IsNil) | |
| 364 s.st = s.OpenAPIAs(c, unit.Tag(), "password") | |
| 365 c.Assert(s.st, gc.NotNil) | |
| 366 s.uniter = s.st.Uniter() | |
| 367 c.Assert(s.uniter, gc.NotNil) | |
| 368 | |
| 369 apiRel, err := s.uniter.Relation(s.rel.Tag()) | |
| 370 c.Assert(err, gc.IsNil) | |
| 371 apiUnit, err := s.uniter.Unit(unit.Tag()) | |
| 372 c.Assert(err, gc.IsNil) | |
| 373 s.apiRelUnit, err = apiRel.Unit(apiUnit) | |
| 374 c.Assert(err, gc.IsNil) | |
| 375 } | |
| 376 | |
| 377 func (s *ContextRelationSuite) TearDownTest(c *gc.C) { | |
| 378 if s.st != nil { | |
| 379 err := s.st.Close() | |
| 380 c.Assert(err, gc.IsNil) | |
| 381 } | |
| 382 s.JujuConnSuite.TearDownTest(c) | |
| 383 } | |
| 384 | |
| 385 func (s *ContextRelationSuite) TestChangeMembers(c *gc.C) { | |
| 386 ctx := apiuniter.NewContextRelation(s.apiRelUnit, nil) | |
| 387 c.Assert(ctx.UnitNames(), gc.HasLen, 0) | |
| 388 | |
| 389 // Check the units and settings after a simple update. | |
| 390 ctx.UpdateMembers(apiuniter.SettingsMap{ | |
| 391 "u/2": {"baz": "2"}, | |
| 392 "u/4": {"qux": "4"}, | |
| 393 }) | |
| 394 c.Assert(ctx.UnitNames(), gc.DeepEquals, []string{"u/2", "u/4"}) | |
| 395 assertSettings := func(unit string, expect params.Settings) { | |
| 396 actual, err := ctx.ReadSettings(unit) | |
| 397 c.Assert(err, gc.IsNil) | |
| 398 c.Assert(actual, gc.DeepEquals, expect) | |
| 399 } | |
| 400 assertSettings("u/2", params.Settings{"baz": "2"}) | |
| 401 assertSettings("u/4", params.Settings{"qux": "4"}) | |
| 402 | |
| 403 // Send a second update; check that members are only added, not removed. | |
| 404 ctx.UpdateMembers(apiuniter.SettingsMap{ | |
| 405 "u/1": {"foo": "1"}, | |
| 406 "u/2": {"abc": "2"}, | |
| 407 "u/3": {"bar": "3"}, | |
| 408 }) | |
| 409 c.Assert(ctx.UnitNames(), gc.DeepEquals, []string{"u/1", "u/2", "u/3", "
u/4"}) | |
| 410 | |
| 411 // Check that all settings remain cached. | |
| 412 assertSettings("u/1", params.Settings{"foo": "1"}) | |
| 413 assertSettings("u/2", params.Settings{"abc": "2"}) | |
| 414 assertSettings("u/3", params.Settings{"bar": "3"}) | |
| 415 assertSettings("u/4", params.Settings{"qux": "4"}) | |
| 416 | |
| 417 // Delete a member, and check that it is no longer a member... | |
| 418 ctx.DeleteMember("u/2") | |
| 419 c.Assert(ctx.UnitNames(), gc.DeepEquals, []string{"u/1", "u/3", "u/4"}) | |
| 420 | |
| 421 // ...and that its settings are no longer cached. | |
| 422 _, err := ctx.ReadSettings("u/2") | |
| 423 c.Assert(err, gc.ErrorMatches, "permission denied") | |
| 424 } | |
| 425 | |
| 426 func (s *ContextRelationSuite) TestMemberCaching(c *gc.C) { | |
| 427 unit, err := s.svc.AddUnit() | |
| 428 c.Assert(err, gc.IsNil) | |
| 429 ru, err := s.rel.Unit(unit) | |
| 430 c.Assert(err, gc.IsNil) | |
| 431 err = ru.EnterScope(map[string]interface{}{"blib": "blob"}) | |
| 432 c.Assert(err, gc.IsNil) | |
| 433 settings, err := ru.Settings() | |
| 434 c.Assert(err, gc.IsNil) | |
| 435 settings.Set("ping", "pong") | |
| 436 _, err = settings.Write() | |
| 437 c.Assert(err, gc.IsNil) | |
| 438 ctx := apiuniter.NewContextRelation(s.apiRelUnit, map[string]int64{"u/1"
: 0}) | |
| 439 | |
| 440 // Check that uncached settings are read from state. | |
| 441 m, err := ctx.ReadSettings("u/1") | |
| 442 c.Assert(err, gc.IsNil) | |
| 443 expectMap := settings.Map() | |
| 444 expectSettings := convertMap(expectMap) | |
| 445 c.Assert(m, gc.DeepEquals, expectSettings) | |
| 446 | |
| 447 // Check that changes to state do not affect the cached settings. | |
| 448 settings.Set("ping", "pow") | |
| 449 _, err = settings.Write() | |
| 450 c.Assert(err, gc.IsNil) | |
| 451 m, err = ctx.ReadSettings("u/1") | |
| 452 c.Assert(err, gc.IsNil) | |
| 453 c.Assert(m, gc.DeepEquals, expectSettings) | |
| 454 | |
| 455 // Check that ClearCache spares the members cache. | |
| 456 ctx.ClearCache() | |
| 457 m, err = ctx.ReadSettings("u/1") | |
| 458 c.Assert(err, gc.IsNil) | |
| 459 c.Assert(m, gc.DeepEquals, expectSettings) | |
| 460 | |
| 461 // Check that updating the context overwrites the cached settings, and | |
| 462 // that the contents of state are ignored. | |
| 463 ctx.UpdateMembers(apiuniter.SettingsMap{"u/1": {"entirely": "different"}
}) | |
| 464 m, err = ctx.ReadSettings("u/1") | |
| 465 c.Assert(err, gc.IsNil) | |
| 466 c.Assert(m, gc.DeepEquals, params.Settings{"entirely": "different"}) | |
| 467 } | |
| 468 | |
| 469 func (s *ContextRelationSuite) TestNonMemberCaching(c *gc.C) { | |
| 470 unit, err := s.svc.AddUnit() | |
| 471 c.Assert(err, gc.IsNil) | |
| 472 ru, err := s.rel.Unit(unit) | |
| 473 c.Assert(err, gc.IsNil) | |
| 474 err = ru.EnterScope(map[string]interface{}{"blib": "blob"}) | |
| 475 c.Assert(err, gc.IsNil) | |
| 476 settings, err := ru.Settings() | |
| 477 c.Assert(err, gc.IsNil) | |
| 478 settings.Set("ping", "pong") | |
| 479 _, err = settings.Write() | |
| 480 c.Assert(err, gc.IsNil) | |
| 481 ctx := apiuniter.NewContextRelation(s.apiRelUnit, nil) | |
| 482 | |
| 483 // Check that settings are read from state. | |
| 484 m, err := ctx.ReadSettings("u/1") | |
| 485 c.Assert(err, gc.IsNil) | |
| 486 expectMap := settings.Map() | |
| 487 expectSettings := convertMap(expectMap) | |
| 488 c.Assert(m, gc.DeepEquals, expectSettings) | |
| 489 | |
| 490 // Check that changes to state do not affect the obtained settings... | |
| 491 settings.Set("ping", "pow") | |
| 492 _, err = settings.Write() | |
| 493 c.Assert(err, gc.IsNil) | |
| 494 m, err = ctx.ReadSettings("u/1") | |
| 495 c.Assert(err, gc.IsNil) | |
| 496 c.Assert(m, gc.DeepEquals, expectSettings) | |
| 497 | |
| 498 // ...until the caches are cleared. | |
| 499 ctx.ClearCache() | |
| 500 c.Assert(err, gc.IsNil) | |
| 501 m, err = ctx.ReadSettings("u/1") | |
| 502 c.Assert(err, gc.IsNil) | |
| 503 c.Assert(m["ping"], gc.Equals, "pow") | |
| 504 } | |
| 505 | |
| 506 func (s *ContextRelationSuite) TestSettings(c *gc.C) { | |
| 507 ctx := apiuniter.NewContextRelation(s.apiRelUnit, nil) | |
| 508 | |
| 509 // Change Settings, then clear cache without writing. | |
| 510 node, err := ctx.Settings() | |
| 511 c.Assert(err, gc.IsNil) | |
| 512 expectSettings := node.Map() | |
| 513 expectMap := convertSettings(expectSettings) | |
| 514 node.Set("change", "exciting") | |
| 515 ctx.ClearCache() | |
| 516 | |
| 517 // Check that the change is not cached... | |
| 518 node, err = ctx.Settings() | |
| 519 c.Assert(err, gc.IsNil) | |
| 520 c.Assert(node.Map(), gc.DeepEquals, expectSettings) | |
| 521 | |
| 522 // ...and not written to state. | |
| 523 settings, err := s.ru.ReadSettings("u/0") | |
| 524 c.Assert(err, gc.IsNil) | |
| 525 c.Assert(settings, gc.DeepEquals, expectMap) | |
| 526 | |
| 527 // Change again, write settings, and clear caches. | |
| 528 node.Set("change", "exciting") | |
| 529 err = ctx.WriteSettings() | |
| 530 c.Assert(err, gc.IsNil) | |
| 531 ctx.ClearCache() | |
| 532 | |
| 533 // Check that the change is reflected in Settings... | |
| 534 expectSettings["change"] = "exciting" | |
| 535 expectMap["change"] = expectSettings["change"] | |
| 536 node, err = ctx.Settings() | |
| 537 c.Assert(err, gc.IsNil) | |
| 538 c.Assert(node.Map(), gc.DeepEquals, expectSettings) | |
| 539 | |
| 540 // ...and was written to state. | |
| 541 settings, err = s.ru.ReadSettings("u/0") | |
| 542 c.Assert(err, gc.IsNil) | |
| 543 c.Assert(settings, gc.DeepEquals, expectMap) | |
| 544 } | |
| 545 | |
| 546 type InterfaceSuite struct { | |
| 547 HookContextSuite | |
| 548 } | |
| 549 | |
| 550 var _ = gc.Suite(&InterfaceSuite{}) | |
| 551 | |
| 552 func (s *InterfaceSuite) GetContext(c *gc.C, relId int, | |
| 553 remoteName string) jujuc.Context { | |
| 554 uuid, err := utils.NewUUID() | |
| 555 c.Assert(err, gc.IsNil) | |
| 556 return s.HookContextSuite.GetHookContext(c, uuid.String(), relId, remote
Name) | |
| 557 } | |
| 558 | |
| 559 func (s *InterfaceSuite) TestUtils(c *gc.C) { | |
| 560 ctx := s.GetContext(c, -1, "") | |
| 561 c.Assert(ctx.UnitName(), gc.Equals, "u/0") | |
| 562 r, found := ctx.HookRelation() | |
| 563 c.Assert(found, gc.Equals, false) | |
| 564 c.Assert(r, gc.IsNil) | |
| 565 name, found := ctx.RemoteUnitName() | |
| 566 c.Assert(found, gc.Equals, false) | |
| 567 c.Assert(name, gc.Equals, "") | |
| 568 c.Assert(ctx.RelationIds(), gc.HasLen, 2) | |
| 569 r, found = ctx.Relation(0) | |
| 570 c.Assert(found, gc.Equals, true) | |
| 571 c.Assert(r.Name(), gc.Equals, "db") | |
| 572 c.Assert(r.FakeId(), gc.Equals, "db:0") | |
| 573 r, found = ctx.Relation(123) | |
| 574 c.Assert(found, gc.Equals, false) | |
| 575 c.Assert(r, gc.IsNil) | |
| 576 | |
| 577 ctx = s.GetContext(c, 1, "") | |
| 578 r, found = ctx.HookRelation() | |
| 579 c.Assert(found, gc.Equals, true) | |
| 580 c.Assert(r.Name(), gc.Equals, "db") | |
| 581 c.Assert(r.FakeId(), gc.Equals, "db:1") | |
| 582 | |
| 583 ctx = s.GetContext(c, 1, "u/123") | |
| 584 name, found = ctx.RemoteUnitName() | |
| 585 c.Assert(found, gc.Equals, true) | |
| 586 c.Assert(name, gc.Equals, "u/123") | |
| 587 } | |
| 588 | |
| 589 func (s *InterfaceSuite) TestUnitCaching(c *gc.C) { | |
| 590 ctx := s.GetContext(c, -1, "") | |
| 591 pr, ok := ctx.PrivateAddress() | |
| 592 c.Assert(ok, gc.Equals, true) | |
| 593 c.Assert(pr, gc.Equals, "u-0.testing.invalid") | |
| 594 _, ok = ctx.PublicAddress() | |
| 595 c.Assert(ok, gc.Equals, false) | |
| 596 | |
| 597 // Change remote state. | |
| 598 u, err := s.State.Unit("u/0") | |
| 599 c.Assert(err, gc.IsNil) | |
| 600 err = u.SetPrivateAddress("") | |
| 601 c.Assert(err, gc.IsNil) | |
| 602 err = u.SetPublicAddress("blah.testing.invalid") | |
| 603 c.Assert(err, gc.IsNil) | |
| 604 | |
| 605 // Local view is unchanged. | |
| 606 pr, ok = ctx.PrivateAddress() | |
| 607 c.Assert(ok, gc.Equals, true) | |
| 608 c.Assert(pr, gc.Equals, "u-0.testing.invalid") | |
| 609 _, ok = ctx.PublicAddress() | |
| 610 c.Assert(ok, gc.Equals, false) | |
| 611 } | |
| 612 | |
| 613 func (s *InterfaceSuite) TestConfigCaching(c *gc.C) { | |
| 614 ctx := s.GetContext(c, -1, "") | |
| 615 settings, err := ctx.ConfigSettings() | |
| 616 c.Assert(err, gc.IsNil) | |
| 617 c.Assert(settings, gc.DeepEquals, charm.Settings{"blog-title": "My Title
"}) | |
| 618 | |
| 619 // Change remote config. | |
| 620 err = s.service.UpdateConfigSettings(charm.Settings{ | |
| 621 "blog-title": "Something Else", | |
| 622 }) | |
| 623 c.Assert(err, gc.IsNil) | |
| 624 | |
| 625 // Local view is not changed. | |
| 626 settings, err = ctx.ConfigSettings() | |
| 627 c.Assert(err, gc.IsNil) | |
| 628 c.Assert(settings, gc.DeepEquals, charm.Settings{"blog-title": "My Title
"}) | |
| 629 } | |
| 630 | |
| 631 type HookContextSuite struct { | |
| 632 testing.JujuConnSuite | |
| 633 service *state.Service | |
| 634 unit *state.Unit | |
| 635 relch *state.Charm | |
| 636 relunits map[int]*state.RelationUnit | |
| 637 relctxs map[int]*apiuniter.ContextRelation | |
| 638 | |
| 639 st *api.State | |
| 640 uniter *uniter.State | |
| 641 apiUnit *uniter.Unit | |
| 642 } | |
| 643 | |
| 644 func (s *HookContextSuite) SetUpTest(c *gc.C) { | |
| 645 s.JujuConnSuite.SetUpTest(c) | |
| 646 var err error | |
| 647 sch := s.AddTestingCharm(c, "wordpress") | |
| 648 s.service, err = s.State.AddService("u", sch) | |
| 649 c.Assert(err, gc.IsNil) | |
| 650 s.unit = s.AddUnit(c, s.service) | |
| 651 | |
| 652 err = s.unit.SetPassword("password") | |
| 653 c.Assert(err, gc.IsNil) | |
| 654 s.st = s.OpenAPIAs(c, s.unit.Tag(), "password") | |
| 655 c.Assert(s.st, gc.NotNil) | |
| 656 s.uniter = s.st.Uniter() | |
| 657 c.Assert(s.uniter, gc.NotNil) | |
| 658 | |
| 659 // Note: The unit must always have a charm URL set, because this | |
| 660 // happens as part of the installation process (that happens | |
| 661 // before the initial install hook). | |
| 662 err = s.unit.SetCharmURL(sch.URL()) | |
| 663 c.Assert(err, gc.IsNil) | |
| 664 s.relch = s.AddTestingCharm(c, "mysql") | |
| 665 s.relunits = map[int]*state.RelationUnit{} | |
| 666 s.relctxs = map[int]*apiuniter.ContextRelation{} | |
| 667 s.AddContextRelation(c, "db0") | |
| 668 s.AddContextRelation(c, "db1") | |
| 669 } | |
| 670 | |
| 671 func (s *HookContextSuite) TearDownTest(c *gc.C) { | |
| 672 if s.st != nil { | |
| 673 err := s.st.Close() | |
| 674 c.Assert(err, gc.IsNil) | |
| 675 } | |
| 676 s.JujuConnSuite.TearDownTest(c) | |
| 677 } | |
| 678 | |
| 679 func (s *HookContextSuite) AddUnit(c *gc.C, svc *state.Service) *state.Unit { | |
| 680 unit, err := svc.AddUnit() | |
| 681 c.Assert(err, gc.IsNil) | |
| 682 name := strings.Replace(unit.Name(), "/", "-", 1) | |
| 683 err = unit.SetPrivateAddress(name + ".testing.invalid") | |
| 684 c.Assert(err, gc.IsNil) | |
| 685 return unit | |
| 686 } | |
| 687 | |
| 688 func (s *HookContextSuite) AddContextRelation(c *gc.C, name string) { | |
| 689 _, err := s.State.AddService(name, s.relch) | |
| 690 c.Assert(err, gc.IsNil) | |
| 691 eps, err := s.State.InferEndpoints([]string{"u", name}) | |
| 692 c.Assert(err, gc.IsNil) | |
| 693 rel, err := s.State.AddRelation(eps...) | |
| 694 c.Assert(err, gc.IsNil) | |
| 695 ru, err := rel.Unit(s.unit) | |
| 696 c.Assert(err, gc.IsNil) | |
| 697 s.relunits[rel.Id()] = ru | |
| 698 err = ru.EnterScope(map[string]interface{}{"relation-name": name}) | |
| 699 c.Assert(err, gc.IsNil) | |
| 700 s.apiUnit, err = s.uniter.Unit(s.unit.Tag()) | |
| 701 c.Assert(err, gc.IsNil) | |
| 702 apiRel, err := s.uniter.Relation(rel.Tag()) | |
| 703 c.Assert(err, gc.IsNil) | |
| 704 apiRelUnit, err := apiRel.Unit(s.apiUnit) | |
| 705 c.Assert(err, gc.IsNil) | |
| 706 s.relctxs[rel.Id()] = apiuniter.NewContextRelation(apiRelUnit, nil) | |
| 707 } | |
| 708 | |
| 709 func (s *HookContextSuite) GetHookContext(c *gc.C, uuid string, relid int, | |
| 710 remote string) *apiuniter.HookContext { | |
| 711 if relid != -1 { | |
| 712 _, found := s.relctxs[relid] | |
| 713 c.Assert(found, gc.Equals, true) | |
| 714 } | |
| 715 context, err := apiuniter.NewHookContext(s.apiUnit, "TestCtx", uuid, rel
id, remote, | |
| 716 s.relctxs, apiAddrs) | |
| 717 c.Assert(err, gc.IsNil) | |
| 718 return context | |
| 719 } | |
| 720 | |
| 721 func convertSettings(settings params.Settings) map[string]interface{} { | |
| 722 result := make(map[string]interface{}) | |
| 723 for k, v := range settings { | |
| 724 result[k] = v | |
| 725 } | |
| 726 return result | |
| 727 } | |
| 728 | |
| 729 func convertMap(settingsMap map[string]interface{}) params.Settings { | |
| 730 result := make(params.Settings) | |
| 731 for k, v := range settingsMap { | |
| 732 result[k] = v.(string) | |
| 733 } | |
| 734 return result | |
| 735 } | |
| OLD | NEW |
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