func (s *SubnetsSuite) CheckAddSubnetsFails(
c *gc.C, envName string,
withZones, withSpaces, withSubnets apiservertesting.SetUpFlag,
expectedError string,
) {
apiservertesting.BackingInstance.SetUp(c, envName, withZones, withSpaces, withSubnets)
// These calls always happen.
expectedCalls := []apiservertesting.StubMethodCall{
apiservertesting.BackingCall("EnvironConfig"),
apiservertesting.ProviderCall("Open", apiservertesting.BackingInstance.EnvConfig),
}
// Subnets is also always called. but the receiver is different.
switch envName {
case apiservertesting.StubNetworkingEnvironName:
expectedCalls = append(
expectedCalls,
apiservertesting.NetworkingEnvironCall("Subnets", instance.UnknownId, []network.Id(nil)),
)
case apiservertesting.StubZonedNetworkingEnvironName:
expectedCalls = append(
expectedCalls,
apiservertesting.ZonedNetworkingEnvironCall("Subnets", instance.UnknownId, []network.Id(nil)),
)
}
if !withSubnets {
// Set provider subnets to empty for this test.
originalSubnets := make([]network.SubnetInfo, len(apiservertesting.ProviderInstance.Subnets))
copy(originalSubnets, apiservertesting.ProviderInstance.Subnets)
apiservertesting.ProviderInstance.Subnets = []network.SubnetInfo{}
defer func() {
apiservertesting.ProviderInstance.Subnets = make([]network.SubnetInfo, len(originalSubnets))
copy(apiservertesting.ProviderInstance.Subnets, originalSubnets)
}()
if envName == apiservertesting.StubEnvironName || envName == apiservertesting.StubNetworkingEnvironName {
// networking is either not supported or no subnets are
// defined, so expected the same calls for each of the two
// arguments to AddSubnets() below.
expectedCalls = append(expectedCalls, expectedCalls...)
}
} else {
// Having subnets implies spaces will be cached as well.
expectedCalls = append(expectedCalls, apiservertesting.BackingCall("AllSpaces"))
}
if withSpaces && withSubnets {
// Having both subnets and spaces means we'll also cache zones.
expectedCalls = append(expectedCalls, apiservertesting.BackingCall("AvailabilityZones"))
}
if !withZones && withSpaces {
// Set provider zones to empty for this test.
originalZones := make([]providercommon.AvailabilityZone, len(apiservertesting.ProviderInstance.Zones))
copy(originalZones, apiservertesting.ProviderInstance.Zones)
apiservertesting.ProviderInstance.Zones = []providercommon.AvailabilityZone{}
defer func() {
apiservertesting.ProviderInstance.Zones = make([]providercommon.AvailabilityZone, len(originalZones))
copy(apiservertesting.ProviderInstance.Zones, originalZones)
}()
// updateZones tries to constructs a ZonedEnviron with these calls.
zoneCalls := append([]apiservertesting.StubMethodCall{},
apiservertesting.BackingCall("EnvironConfig"),
apiservertesting.ProviderCall("Open", apiservertesting.BackingInstance.EnvConfig),
)
// Receiver can differ according to envName, but
// AvailabilityZones() will be called on either receiver.
switch envName {
case apiservertesting.StubZonedEnvironName:
zoneCalls = append(
zoneCalls,
apiservertesting.ZonedEnvironCall("AvailabilityZones"),
)
case apiservertesting.StubZonedNetworkingEnvironName:
zoneCalls = append(
zoneCalls,
apiservertesting.ZonedNetworkingEnvironCall("AvailabilityZones"),
)
}
// Finally after caching provider zones backing zones are
// updated.
zoneCalls = append(
zoneCalls,
apiservertesting.BackingCall("SetAvailabilityZones", apiservertesting.ProviderInstance.Zones),
)
// Now, because we have 2 arguments to AddSubnets() below, we
// need to expect the same zoneCalls twice, with a
// AvailabilityZones backing lookup between them.
expectedCalls = append(expectedCalls, zoneCalls...)
expectedCalls = append(expectedCalls, apiservertesting.BackingCall("AvailabilityZones"))
expectedCalls = append(expectedCalls, zoneCalls...)
}
// Pass 2 arguments covering all cases we need.
args := params.AddSubnetsParams{
Subnets: []params.AddSubnetParams{{
SubnetTag: "subnet-10.42.0.0/16",
SpaceTag: "space-dmz",
Zones: []string{"zone1"},
}, {
SubnetProviderId: "vlan-42",
SpaceTag: "space-private",
Zones: []string{"zone3"},
}},
}
results, err := s.facade.AddSubnets(args)
c.Assert(err, jc.ErrorIsNil)
c.Assert(results.Results, gc.HasLen, len(args.Subnets))
for _, result := range results.Results {
if !c.Check(result.Error, gc.NotNil) {
continue
}
c.Check(result.Error, gc.ErrorMatches, expectedError)
c.Check(result.Error.Code, gc.Equals, "")
}
apiservertesting.CheckMethodCalls(c, apiservertesting.SharedStub, expectedCalls...)
}
func (s *SubnetsSuite) TestAddSubnetsParamsCombinations(c *gc.C) {
apiservertesting.BackingInstance.SetUp(c, apiservertesting.StubNetworkingEnvironName, apiservertesting.WithZones, apiservertesting.WithSpaces, apiservertesting.WithSubnets)
args := params.AddSubnetsParams{Subnets: []params.AddSubnetParams{{
// nothing set; early exit: no calls
}, {
// neither tag nor id set: the rest is ignored; same as above
SpaceTag: "any",
Zones: []string{"any", "ignored"},
}, {
// both tag and id set; same as above
SubnetTag: "any",
SubnetProviderId: "any",
}, {
// lookup by id needed, no cached subnets; EnvironConfig(): error
SubnetProviderId: "any",
}, {
// same as above, need to cache subnets; EnvironConfig(): ok; Open(): error
SubnetProviderId: "ignored",
}, {
// as above, caching again; EnvironConfig(), Open(): ok; Subnets(): error
SubnetProviderId: "unimportant",
}, {
// exactly as above, except all 3 calls ok; cached lookup: id not found
SubnetProviderId: "missing",
}, {
// cached lookup by id (no calls): not found error
SubnetProviderId: "void",
}, {
// cached lookup by id: ok; parsing space tag: invalid tag error
SubnetProviderId: "sn-deadbeef",
SpaceTag: "invalid",
}, {
// as above, but slightly different error: invalid space tag error
SubnetProviderId: "sn-zadf00d",
SpaceTag: "unit-foo",
}, {
// as above; yet another similar error (valid tag with another kind)
SubnetProviderId: "vlan-42",
SpaceTag: "unit-foo-0",
}, {
// invalid tag (no kind): error (no calls)
SubnetTag: "invalid",
}, {
// invalid subnet tag (another kind): same as above
SubnetTag: "service-bar",
}, {
// cached lookup by missing CIDR: not found error
SubnetTag: "subnet-1.2.3.0/24",
}, {
// cached lookup by duplicate CIDR: multiple choices error
SubnetTag: "subnet-10.10.0.0/24",
}, {
// cached lookup by CIDR with empty provider id: ok; space tag is required error
SubnetTag: "subnet-10.20.0.0/16",
}, {
// cached lookup by id with invalid CIDR: cannot be added error
SubnetProviderId: "sn-invalid",
}, {
// cached lookup by id with empty CIDR: cannot be added error
SubnetProviderId: "sn-empty",
}, {
// cached lookup by id with incorrectly specified CIDR: cannot be added error
SubnetProviderId: "sn-awesome",
}, {
// cached lookup by CIDR: ok; valid tag; caching spaces: AllSpaces(): error
SubnetTag: "subnet-10.30.1.0/24",
SpaceTag: "space-unverified",
}, {
// exactly as above, except AllSpaces(): ok; cached lookup: space not found
SubnetTag: "subnet-2001:db8::/32",
SpaceTag: "space-missing",
}, {
// both cached lookups (CIDR, space): ok; no provider or given zones: error
SubnetTag: "subnet-10.42.0.0/16",
SpaceTag: "space-dmz",
}, {
// like above; with provider zones, extra given: error
SubnetProviderId: "vlan-42",
SpaceTag: "space-private",
Zones: []string{
"zone2", // not allowed, existing, unavailable
"zone3", // allowed, existing, available
"missing", // not allowed, non-existing
"zone3", // duplicates are ignored (should they ?)
"zone1", // not allowed, existing, available
},
}, {
// like above; no provider, only given zones; caching: AllZones(): error
SubnetTag: "subnet-10.42.0.0/16",
SpaceTag: "space-dmz",
Zones: []string{"any", "ignored"},
}, {
// as above, but unknown zones given: cached: AllZones(): ok; unknown zones error
SubnetTag: "subnet-10.42.0.0/16",
SpaceTag: "space-dmz",
Zones: []string{"missing", "gone"},
}, {
// as above, but unknown and unavailable zones given: same error (no calls)
SubnetTag: "subnet-10.42.0.0/16",
SpaceTag: "space-dmz",
Zones: []string{"zone4", "missing", "zone2"},
}, {
// as above, but unavailable zones given: Zones contains unavailable error
SubnetTag: "subnet-10.42.0.0/16",
SpaceTag: "space-dmz",
Zones: []string{"zone2", "zone4"},
}, {
// as above, but available and unavailable zones given: same error as above
SubnetTag: "subnet-10.42.0.0/16",
SpaceTag: "space-dmz",
Zones: []string{"zone4", "zone3"},
}, {
// everything succeeds, using caches as needed, until: AddSubnet(): error
SubnetProviderId: "sn-ipv6",
SpaceTag: "space-dmz",
Zones: []string{"zone1"},
// restriction of provider zones [zone1, zone3]
}, {
// cached lookups by CIDR, space: ok; duplicated provider id: unavailable zone2
SubnetTag: "subnet-10.99.88.0/24",
SpaceTag: "space-dmz",
Zones: []string{"zone2"},
// due to the duplicate ProviderId provider zones from subnet
// with the last ProviderId=sn-deadbeef are used
// (10.10.0.0/24); [zone2], not the 10.99.88.0/24 provider
// zones: [zone1, zone2].
}, {
// same as above, but AddSubnet(): ok; success (backing verified later)
SubnetProviderId: "sn-ipv6",
SpaceTag: "space-dmz",
Zones: []string{"zone1"},
// restriction of provider zones [zone1, zone3]
}, {
// success (CIDR lookup; with provider (no given) zones): AddSubnet(): ok
SubnetTag: "subnet-10.30.1.0/24",
SpaceTag: "space-private",
// Zones not given, so provider zones are used instead: [zone3]
}, {
// success (id lookup; given zones match provider zones) AddSubnet(): ok
SubnetProviderId: "sn-zadf00d",
SpaceTag: "space-private",
Zones: []string{"zone1"},
}}}
apiservertesting.SharedStub.SetErrors(
// caching subnets (1st attempt): fails
errors.NotFoundf("config"), // BackingInstance.EnvironConfig (1st call)
// caching subnets (2nd attepmt): fails
nil, // BackingInstance.EnvironConfig (2nd call)
errors.NotFoundf("provider"), // ProviderInstance.Open (1st call)
// caching subnets (3rd attempt): fails
nil, // BackingInstance.EnvironConfig (3rd call)
nil, // ProviderInstance.Open (2nd call)
errors.NotFoundf("subnets"), // NetworkingEnvironInstance.Subnets (1st call)
// caching subnets (4th attempt): succeeds
nil, // BackingInstance.EnvironConfig (4th call)
nil, // ProviderInstance.Open (3rd call)
nil, // NetworkingEnvironInstance.Subnets (2nd call)
// caching spaces (1st and 2nd attempts)
errors.NotFoundf("spaces"), // BackingInstance.AllSpaces (1st call)
nil, // BackingInstance.AllSpaces (2nd call)
// cacing zones (1st and 2nd attempts)
errors.NotFoundf("zones"), // BackingInstance.AvailabilityZones (1st call)
nil, // BackingInstance.AvailabilityZones (2nd call)
// validation done; adding subnets to backing store
errors.NotFoundf("state"), // BackingInstance.AddSubnet (1st call)
// the next 3 BackingInstance.AddSubnet calls succeed(2nd call)
)
expectedErrors := []struct {
message string
satisfier func(error) bool
}{
{"either SubnetTag or SubnetProviderId is required", nil},
{"either SubnetTag or SubnetProviderId is required", nil},
{"SubnetTag and SubnetProviderId cannot be both set", nil},
{"getting environment config: config not found", params.IsCodeNotFound},
{"opening environment: provider not found", params.IsCodeNotFound},
{"cannot get provider subnets: subnets not found", params.IsCodeNotFound},
{`subnet with CIDR "" and ProviderId "missing" not found`, params.IsCodeNotFound},
{`subnet with CIDR "" and ProviderId "void" not found`, params.IsCodeNotFound},
{`given SpaceTag is invalid: "invalid" is not a valid tag`, nil},
{`given SpaceTag is invalid: "unit-foo" is not a valid unit tag`, nil},
{`given SpaceTag is invalid: "unit-foo-0" is not a valid space tag`, nil},
{`given SubnetTag is invalid: "invalid" is not a valid tag`, nil},
{`given SubnetTag is invalid: "service-bar" is not a valid subnet tag`, nil},
{`subnet with CIDR "1.2.3.0/24" not found`, params.IsCodeNotFound},
{
`multiple subnets with CIDR "10.10.0.0/24": ` +
`retry using ProviderId from: "sn-deadbeef", "sn-zadf00d"`, nil,
},
{"SpaceTag is required", nil},
{`subnet with CIDR "invalid" and ProviderId "sn-invalid": invalid CIDR`, nil},
{`subnet with ProviderId "sn-empty": empty CIDR`, nil},
{
`subnet with ProviderId "sn-awesome": ` +
`incorrect CIDR format "0.1.2.3/4", expected "0.0.0.0/4"`, nil,
},
{"cannot validate given SpaceTag: spaces not found", params.IsCodeNotFound},
{`space "missing" not found`, params.IsCodeNotFound},
{"Zones cannot be discovered from the provider and must be set", nil},
{`Zones contain zones not allowed by the provider: "missing", "zone1", "zone2"`, nil},
{"given Zones cannot be validated: zones not found", params.IsCodeNotFound},
{`Zones contain unknown zones: "gone", "missing"`, nil},
{`Zones contain unknown zones: "missing"`, nil},
{`Zones contain unavailable zones: "zone2", "zone4"`, nil},
{`Zones contain unavailable zones: "zone4"`, nil},
{"state not found", params.IsCodeNotFound},
{`Zones contain unavailable zones: "zone2"`, nil},
{"", nil},
{"", nil},
{"", nil},
}
expectedBackingInfos := []common.BackingSubnetInfo{{
ProviderId: "sn-ipv6",
CIDR: "2001:db8::/32",
VLANTag: 0,
AllocatableIPHigh: "",
AllocatableIPLow: "",
AvailabilityZones: []string{"zone1"},
SpaceName: "dmz",
}, {
ProviderId: "vlan-42",
CIDR: "10.30.1.0/24",
VLANTag: 42,
AllocatableIPHigh: "",
AllocatableIPLow: "",
AvailabilityZones: []string{"zone3"},
SpaceName: "private",
}, {
ProviderId: "sn-zadf00d",
CIDR: "10.10.0.0/24",
VLANTag: 0,
AllocatableIPHigh: "10.10.0.100",
AllocatableIPLow: "10.10.0.10",
AvailabilityZones: []string{"zone1"},
SpaceName: "private",
}}
c.Check(expectedErrors, gc.HasLen, len(args.Subnets))
results, err := s.facade.AddSubnets(args)
c.Assert(err, jc.ErrorIsNil)
c.Assert(len(results.Results), gc.Equals, len(args.Subnets))
for i, result := range results.Results {
c.Logf("result #%d: expected: %q", i, expectedErrors[i].message)
if expectedErrors[i].message == "" {
if !c.Check(result.Error, gc.IsNil) {
c.Logf("unexpected error: %v; args: %#v", result.Error, args.Subnets[i])
}
continue
}
if !c.Check(result.Error, gc.NotNil) {
c.Logf("unexpected success; args: %#v", args.Subnets[i])
continue
}
c.Check(result.Error.Message, gc.Equals, expectedErrors[i].message)
if expectedErrors[i].satisfier != nil {
c.Check(result.Error, jc.Satisfies, expectedErrors[i].satisfier)
} else {
c.Check(result.Error.Code, gc.Equals, "")
}
}
apiservertesting.CheckMethodCalls(c, apiservertesting.SharedStub,
// caching subnets (1st attempt): fails
apiservertesting.BackingCall("EnvironConfig"),
// caching subnets (2nd attepmt): fails
apiservertesting.BackingCall("EnvironConfig"),
apiservertesting.ProviderCall("Open", apiservertesting.BackingInstance.EnvConfig),
// caching subnets (3rd attempt): fails
apiservertesting.BackingCall("EnvironConfig"),
apiservertesting.ProviderCall("Open", apiservertesting.BackingInstance.EnvConfig),
apiservertesting.NetworkingEnvironCall("Subnets", instance.UnknownId, []network.Id(nil)),
// caching subnets (4th attempt): succeeds
apiservertesting.BackingCall("EnvironConfig"),
apiservertesting.ProviderCall("Open", apiservertesting.BackingInstance.EnvConfig),
apiservertesting.NetworkingEnvironCall("Subnets", instance.UnknownId, []network.Id(nil)),
// caching spaces (1st and 2nd attempts)
apiservertesting.BackingCall("AllSpaces"),
apiservertesting.BackingCall("AllSpaces"),
// cacing zones (1st and 2nd attempts)
apiservertesting.BackingCall("AvailabilityZones"),
apiservertesting.BackingCall("AvailabilityZones"),
// validation done; adding subnets to backing store
apiservertesting.BackingCall("AddSubnet", expectedBackingInfos[0]),
apiservertesting.BackingCall("AddSubnet", expectedBackingInfos[0]),
apiservertesting.BackingCall("AddSubnet", expectedBackingInfos[1]),
apiservertesting.BackingCall("AddSubnet", expectedBackingInfos[2]),
)
apiservertesting.ResetStub(apiservertesting.SharedStub)
// Finally, check that no params yields no results.
results, err = s.facade.AddSubnets(params.AddSubnetsParams{})
c.Assert(err, jc.ErrorIsNil)
c.Assert(results.Results, gc.NotNil)
c.Assert(results.Results, gc.HasLen, 0)
apiservertesting.CheckMethodCalls(c, apiservertesting.SharedStub)
}