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meta_test.go
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// Copyright 2011, 2012, 2013 Canonical Ltd.
// Licensed under the LGPLv3, see LICENCE file for details.
package charm_test
import (
"bytes"
"fmt"
"io"
"io/ioutil"
"os"
"path/filepath"
"strings"
jc "github.com/juju/testing/checkers"
"github.com/juju/version/v2"
gc "gopkg.in/check.v1"
"gopkg.in/yaml.v2"
"github.com/juju/charm/v9"
"github.com/juju/charm/v9/resource"
)
func repoMeta(c *gc.C, name string) io.Reader {
charmDir := charmDirPath(c, name)
file, err := os.Open(filepath.Join(charmDir, "metadata.yaml"))
c.Assert(err, gc.IsNil)
defer file.Close()
data, err := ioutil.ReadAll(file)
c.Assert(err, gc.IsNil)
return bytes.NewReader(data)
}
type MetaSuite struct{}
var _ = gc.Suite(&MetaSuite{})
func (s *MetaSuite) TestReadMetaVersion1(c *gc.C) {
meta, err := charm.ReadMeta(repoMeta(c, "dummy"))
c.Assert(err, gc.IsNil)
c.Assert(meta.Name, gc.Equals, "dummy")
c.Assert(meta.Summary, gc.Equals, "That's a dummy charm.")
c.Assert(meta.Description, gc.Equals,
"This is a longer description which\npotentially contains multiple lines.\n")
c.Assert(meta.Subordinate, gc.Equals, false)
}
func (s *MetaSuite) TestReadMetaVersion2(c *gc.C) {
// This checks that we can accept a charm with the
// obsolete "format" field, even though we ignore it.
meta, err := charm.ReadMeta(repoMeta(c, "format2"))
c.Assert(err, gc.IsNil)
c.Assert(meta.Name, gc.Equals, "format2")
c.Assert(meta.Categories, gc.HasLen, 0)
c.Assert(meta.Terms, gc.HasLen, 0)
}
func (s *MetaSuite) TestValidTermFormat(c *gc.C) {
valid := []string{
"foobar",
"foobar/27",
"foo/003",
"owner/foobar/27",
"owner/foobar",
"owner/foo-bar",
"own-er/foobar",
"ibm/j9-jvm/2",
"cs:foobar/27",
"cs:foobar",
}
invalid := []string{
"/",
"/1",
"//",
"//2",
"27",
"owner/foo/foobar",
"@les/term/1",
"own_er/foobar",
}
for i, s := range valid {
c.Logf("valid test %d: %s", i, s)
meta := charm.Meta{Terms: []string{s}}
err := meta.Check(charm.FormatV1)
c.Check(err, jc.ErrorIsNil)
}
for i, s := range invalid {
c.Logf("invalid test %d: %s", i, s)
meta := charm.Meta{Terms: []string{s}}
err := meta.Check(charm.FormatV1)
c.Check(err, gc.NotNil)
}
}
func (s *MetaSuite) TestTermStringRoundTrip(c *gc.C) {
terms := []string{
"foobar",
"foobar/27",
"owner/foobar/27",
"owner/foobar",
"owner/foo-bar",
"own-er/foobar",
"ibm/j9-jvm/2",
"cs:foobar/27",
}
for i, term := range terms {
c.Logf("test %d: %s", i, term)
id, err := charm.ParseTerm(term)
c.Check(err, gc.IsNil)
c.Check(id.String(), gc.Equals, term)
}
}
func (s *MetaSuite) TestCheckTerms(c *gc.C) {
tests := []struct {
about string
terms []string
expectError string
}{{
about: "valid terms",
terms: []string{"term/1", "term/2", "term-without-revision", "tt/2"},
}, {
about: "revision not a number",
terms: []string{"term/1", "term/a"},
expectError: `wrong term name format "a"`,
}, {
about: "negative revision",
terms: []string{"term/-1"},
expectError: "negative term revision",
}, {
about: "wrong format",
terms: []string{"term/1", "foobar/term/abc/1"},
expectError: `unknown term id format "foobar/term/abc/1"`,
}, {
about: "term with owner",
terms: []string{"term/1", "term/abc/1"},
}, {
about: "term with owner no rev",
terms: []string{"term/1", "term/abc"},
}, {
about: "term may not contain spaces",
terms: []string{"term/1", "term about a term"},
expectError: `wrong term name format "term about a term"`,
}, {
about: "term name must start with lowercase letter",
terms: []string{"Term/1"},
expectError: `wrong term name format "Term"`,
}, {
about: "term name cannot contain capital letters",
terms: []string{"owner/foO-Bar"},
expectError: `wrong term name format "foO-Bar"`,
}, {
about: "term name cannot contain underscores, that's what dashes are for",
terms: []string{"owner/foo_bar"},
expectError: `wrong term name format "foo_bar"`,
}, {
about: "term name can't end with a dash",
terms: []string{"o-/1"},
expectError: `wrong term name format "o-"`,
}, {
about: "term name can't contain consecutive dashes",
terms: []string{"o-oo--ooo---o/1"},
expectError: `wrong term name format "o-oo--ooo---o"`,
}, {
about: "term name more than a single char",
terms: []string{"z/1"},
expectError: `wrong term name format "z"`,
}, {
about: "term name match the regexp",
terms: []string{"term_123-23aAf/1"},
expectError: `wrong term name format "term_123-23aAf"`,
},
}
for i, test := range tests {
c.Logf("running test %v: %v", i, test.about)
meta := charm.Meta{Terms: test.terms}
err := meta.Check(charm.FormatV1)
if test.expectError == "" {
c.Check(err, jc.ErrorIsNil)
} else {
c.Check(err, gc.ErrorMatches, test.expectError)
}
}
}
func (s *MetaSuite) TestParseTerms(c *gc.C) {
tests := []struct {
about string
term string
expectError string
expectTerm charm.TermsId
}{{
about: "valid term",
term: "term/1",
expectTerm: charm.TermsId{"", "", "term", 1},
}, {
about: "valid term no revision",
term: "term",
expectTerm: charm.TermsId{"", "", "term", 0},
}, {
about: "revision not a number",
term: "term/a",
expectError: `wrong term name format "a"`,
}, {
about: "negative revision",
term: "term/-1",
expectError: "negative term revision",
}, {
about: "bad revision",
term: "owner/term/12a",
expectError: `invalid revision number "12a" strconv.Atoi: parsing "12a": invalid syntax`,
}, {
about: "wrong format",
term: "foobar/term/abc/1",
expectError: `unknown term id format "foobar/term/abc/1"`,
}, {
about: "term with owner",
term: "term/abc/1",
expectTerm: charm.TermsId{"", "term", "abc", 1},
}, {
about: "term with owner no rev",
term: "term/abc",
expectTerm: charm.TermsId{"", "term", "abc", 0},
}, {
about: "term may not contain spaces",
term: "term about a term",
expectError: `wrong term name format "term about a term"`,
}, {
about: "term name must not start with a number",
term: "1Term/1",
expectError: `wrong term name format "1Term"`,
}, {
about: "full term with tenant",
term: "tenant:owner/term/1",
expectTerm: charm.TermsId{"tenant", "owner", "term", 1},
}, {
about: "bad tenant",
term: "tenant::owner/term/1",
expectError: `wrong owner format ":owner"`,
}, {
about: "ownerless term with tenant",
term: "tenant:term/1",
expectTerm: charm.TermsId{"tenant", "", "term", 1},
}, {
about: "ownerless revisionless term with tenant",
term: "tenant:term",
expectTerm: charm.TermsId{"tenant", "", "term", 0},
}, {
about: "owner/term with tenant",
term: "tenant:owner/term",
expectTerm: charm.TermsId{"tenant", "owner", "term", 0},
}, {
about: "term with tenant",
term: "tenant:term",
expectTerm: charm.TermsId{"tenant", "", "term", 0},
}}
for i, test := range tests {
c.Logf("running test %v: %v", i, test.about)
term, err := charm.ParseTerm(test.term)
if test.expectError == "" {
c.Check(err, jc.ErrorIsNil)
c.Check(term, gc.DeepEquals, &test.expectTerm)
} else {
c.Check(err, gc.ErrorMatches, test.expectError)
c.Check(term, gc.IsNil)
}
}
}
func (s *MetaSuite) TestReadCategory(c *gc.C) {
meta, err := charm.ReadMeta(repoMeta(c, "category"))
c.Assert(err, gc.IsNil)
c.Assert(meta.Categories, jc.DeepEquals, []string{"database"})
}
func (s *MetaSuite) TestReadTerms(c *gc.C) {
meta, err := charm.ReadMeta(repoMeta(c, "terms"))
c.Assert(err, jc.ErrorIsNil)
err = meta.Check(charm.FormatV1)
c.Assert(err, jc.ErrorIsNil)
c.Assert(meta.Terms, jc.DeepEquals, []string{"term1/1", "term2", "owner/term3/1"})
}
var metaDataWithInvalidTermsId = `
name: terms
summary: "Sample charm with terms and conditions"
description: |
That's a boring charm that requires certain terms.
terms: ["!!!/abc"]
`
func (s *MetaSuite) TestCheckReadInvalidTerms(c *gc.C) {
reader := strings.NewReader(metaDataWithInvalidTermsId)
meta, err := charm.ReadMeta(reader)
c.Assert(err, jc.ErrorIsNil)
err = meta.Check(charm.FormatV1)
c.Assert(err, gc.ErrorMatches, `wrong owner format "!!!"`)
}
func (s *MetaSuite) TestReadTags(c *gc.C) {
meta, err := charm.ReadMeta(repoMeta(c, "category"))
c.Assert(err, gc.IsNil)
c.Assert(meta.Tags, jc.DeepEquals, []string{"openstack", "storage"})
}
func (s *MetaSuite) TestSubordinate(c *gc.C) {
meta, err := charm.ReadMeta(repoMeta(c, "logging"))
c.Assert(err, gc.IsNil)
c.Assert(meta.Subordinate, gc.Equals, true)
}
func (s *MetaSuite) TestCheckSubordinateWithoutContainerRelation(c *gc.C) {
r := repoMeta(c, "dummy")
hackYaml := ReadYaml(r)
hackYaml["subordinate"] = true
meta, err := charm.ReadMeta(hackYaml.Reader())
c.Assert(err, jc.ErrorIsNil)
err = meta.Check(charm.FormatV1)
c.Assert(err, gc.ErrorMatches, "subordinate charm \"dummy\" lacks \"requires\" relation with container scope")
}
func (s *MetaSuite) TestScopeConstraint(c *gc.C) {
meta, err := charm.ReadMeta(repoMeta(c, "logging"))
c.Assert(err, gc.IsNil)
c.Assert(meta.Provides["logging-client"].Scope, gc.Equals, charm.ScopeGlobal)
c.Assert(meta.Requires["logging-directory"].Scope, gc.Equals, charm.ScopeContainer)
c.Assert(meta.Subordinate, gc.Equals, true)
}
func (s *MetaSuite) TestParseMetaRelations(c *gc.C) {
meta, err := charm.ReadMeta(repoMeta(c, "mysql"))
c.Assert(err, gc.IsNil)
c.Assert(meta.Provides["server"], gc.Equals, charm.Relation{
Name: "server",
Role: charm.RoleProvider,
Interface: "mysql",
Scope: charm.ScopeGlobal,
})
c.Assert(meta.Requires, gc.IsNil)
c.Assert(meta.Peers, gc.IsNil)
meta, err = charm.ReadMeta(repoMeta(c, "riak"))
c.Assert(err, gc.IsNil)
c.Assert(meta.Provides["endpoint"], gc.Equals, charm.Relation{
Name: "endpoint",
Role: charm.RoleProvider,
Interface: "http",
Scope: charm.ScopeGlobal,
})
c.Assert(meta.Provides["admin"], gc.Equals, charm.Relation{
Name: "admin",
Role: charm.RoleProvider,
Interface: "http",
Scope: charm.ScopeGlobal,
})
c.Assert(meta.Peers["ring"], gc.Equals, charm.Relation{
Name: "ring",
Role: charm.RolePeer,
Interface: "riak",
Scope: charm.ScopeGlobal,
})
c.Assert(meta.Requires, gc.IsNil)
meta, err = charm.ReadMeta(repoMeta(c, "terracotta"))
c.Assert(err, gc.IsNil)
c.Assert(meta.Provides["dso"], gc.Equals, charm.Relation{
Name: "dso",
Role: charm.RoleProvider,
Interface: "terracotta",
Optional: true,
Scope: charm.ScopeGlobal,
})
c.Assert(meta.Peers["server-array"], gc.Equals, charm.Relation{
Name: "server-array",
Role: charm.RolePeer,
Interface: "terracotta-server",
Scope: charm.ScopeGlobal,
})
c.Assert(meta.Requires, gc.IsNil)
meta, err = charm.ReadMeta(repoMeta(c, "wordpress"))
c.Assert(err, gc.IsNil)
c.Assert(meta.Provides["url"], gc.Equals, charm.Relation{
Name: "url",
Role: charm.RoleProvider,
Interface: "http",
Scope: charm.ScopeGlobal,
})
c.Assert(meta.Requires["db"], gc.Equals, charm.Relation{
Name: "db",
Role: charm.RoleRequirer,
Interface: "mysql",
Limit: 1,
Scope: charm.ScopeGlobal,
})
c.Assert(meta.Requires["cache"], gc.Equals, charm.Relation{
Name: "cache",
Role: charm.RoleRequirer,
Interface: "varnish",
Limit: 2,
Optional: true,
Scope: charm.ScopeGlobal,
})
c.Assert(meta.Peers, gc.IsNil)
meta, err = charm.ReadMeta(repoMeta(c, "monitoring"))
c.Assert(err, gc.IsNil)
c.Assert(meta.Provides["monitoring-client"], gc.Equals, charm.Relation{
Name: "monitoring-client",
Role: charm.RoleProvider,
Interface: "monitoring",
Scope: charm.ScopeGlobal,
})
c.Assert(meta.Requires["monitoring-port"], gc.Equals, charm.Relation{
Name: "monitoring-port",
Role: charm.RoleRequirer,
Interface: "monitoring",
Scope: charm.ScopeContainer,
})
c.Assert(meta.Requires["info"], gc.Equals, charm.Relation{
Name: "info",
Role: charm.RoleRequirer,
Interface: "juju-info",
Scope: charm.ScopeContainer,
})
c.Assert(meta.Peers, gc.IsNil)
}
func (s *MetaSuite) TestCombinedRelations(c *gc.C) {
meta, err := charm.ReadMeta(repoMeta(c, "riak"))
c.Assert(err, gc.IsNil)
combinedRelations := meta.CombinedRelations()
expectedLength := len(meta.Provides) + len(meta.Requires) + len(meta.Peers)
c.Assert(combinedRelations, gc.HasLen, expectedLength)
c.Assert(combinedRelations, jc.DeepEquals, map[string]charm.Relation{
"endpoint": {
Name: "endpoint",
Role: charm.RoleProvider,
Interface: "http",
Scope: charm.ScopeGlobal,
},
"admin": {
Name: "admin",
Role: charm.RoleProvider,
Interface: "http",
Scope: charm.ScopeGlobal,
},
"ring": {
Name: "ring",
Role: charm.RolePeer,
Interface: "riak",
Scope: charm.ScopeGlobal,
},
})
}
func (s *MetaSuite) TestParseJujuRelations(c *gc.C) {
meta, err := charm.ReadMeta(repoMeta(c, "juju-charm"))
c.Assert(err, gc.IsNil)
c.Assert(meta.Provides["dashboard"], gc.Equals, charm.Relation{
Name: "dashboard",
Role: charm.RoleProvider,
Interface: "juju-dashboard",
Scope: charm.ScopeGlobal,
})
}
var relationsConstraintsTests = []struct {
rels string
err string
}{
{
"provides:\n foo: ping\nrequires:\n foo: pong",
`charm "a" using a duplicated relation name: "foo"`,
}, {
"requires:\n foo: ping\npeers:\n foo: pong",
`charm "a" using a duplicated relation name: "foo"`,
}, {
"peers:\n foo: ping\nprovides:\n foo: pong",
`charm "a" using a duplicated relation name: "foo"`,
}, {
"provides:\n juju: blob",
`charm "a" using a reserved relation name: "juju"`,
}, {
"requires:\n juju: blob",
`charm "a" using a reserved relation name: "juju"`,
}, {
"peers:\n juju: blob",
`charm "a" using a reserved relation name: "juju"`,
}, {
"provides:\n juju-snap: blub",
`charm "a" using a reserved relation name: "juju-snap"`,
}, {
"requires:\n juju-crackle: blub",
`charm "a" using a reserved relation name: "juju-crackle"`,
}, {
"peers:\n juju-pop: blub",
`charm "a" using a reserved relation name: "juju-pop"`,
}, {
"provides:\n innocuous: juju",
`charm "a" relation "innocuous" using a reserved interface: "juju"`,
}, {
"peers:\n innocuous: juju",
`charm "a" relation "innocuous" using a reserved interface: "juju"`,
}, {
"provides:\n innocuous: juju-snap",
`charm "a" relation "innocuous" using a reserved interface: "juju-snap"`,
}, {
"peers:\n innocuous: juju-snap",
`charm "a" relation "innocuous" using a reserved interface: "juju-snap"`,
},
}
func (s *MetaSuite) TestCheckRelationsConstraints(c *gc.C) {
check := func(s, e string) {
meta, err := charm.ReadMeta(strings.NewReader(s))
c.Assert(err, jc.ErrorIsNil)
c.Assert(meta, gc.NotNil)
err = meta.Check(charm.FormatV1)
if e != "" {
c.Assert(err, gc.ErrorMatches, e)
} else {
c.Assert(err, gc.IsNil)
}
}
prefix := "name: a\nsummary: b\ndescription: c\n"
for i, t := range relationsConstraintsTests {
c.Logf("test %d", i)
check(prefix+t.rels, t.err)
check(prefix+"subordinate: true\n"+t.rels, t.err)
}
// The juju-* namespace is accessible to container-scoped require
// relations on subordinate charms.
check(prefix+`
subordinate: true
requires:
juju-info:
interface: juju-info
scope: container`, "")
// The juju-* interfaces are allowed on any require relation.
check(prefix+`
requires:
innocuous: juju-info`, "")
}
// dummyMetadata contains a minimally valid charm metadata.yaml
// for testing valid and invalid series.
const dummyMetadata = "name: a\nsummary: b\ndescription: c"
func (s *MetaSuite) TestSeries(c *gc.C) {
// series not specified
meta, err := charm.ReadMeta(strings.NewReader(dummyMetadata))
c.Assert(err, gc.IsNil)
c.Check(meta.Series, gc.HasLen, 0)
charmMeta := fmt.Sprintf("%s\nseries:", dummyMetadata)
for _, seriesName := range []string{"precise", "trusty", "plan9"} {
charmMeta = fmt.Sprintf("%s\n - %s", charmMeta, seriesName)
}
meta, err = charm.ReadMeta(strings.NewReader(charmMeta))
c.Assert(err, gc.IsNil)
c.Assert(meta.Series, gc.DeepEquals, []string{"precise", "trusty", "plan9"})
}
func (s *MetaSuite) TestCheckInvalidSeries(c *gc.C) {
for _, seriesName := range []string{"pre-c1se", "pre^cise", "cp/m", "OpenVMS"} {
err := charm.Meta{
Name: "a",
Summary: "b",
Description: "c",
Series: []string{seriesName},
}.Check(charm.FormatV1)
c.Check(err, gc.ErrorMatches, `charm "a" declares invalid series: .*`)
}
}
func (s *MetaSuite) TestMinJujuVersion(c *gc.C) {
// series not specified
meta, err := charm.ReadMeta(strings.NewReader(dummyMetadata))
c.Assert(err, gc.IsNil)
c.Check(meta.Series, gc.HasLen, 0)
charmMeta := fmt.Sprintf("%s\nmin-juju-version: ", dummyMetadata)
vals := []version.Number{
{Major: 1, Minor: 25},
{Major: 1, Minor: 25, Tag: "alpha"},
{Major: 1, Minor: 25, Patch: 1},
}
for _, ver := range vals {
val := charmMeta + ver.String()
meta, err = charm.ReadMeta(strings.NewReader(val))
c.Assert(err, gc.IsNil)
c.Assert(meta.MinJujuVersion, gc.Equals, ver)
}
}
func (s *MetaSuite) TestInvalidMinJujuVersion(c *gc.C) {
_, err := charm.ReadMeta(strings.NewReader(dummyMetadata + "\nmin-juju-version: invalid-version"))
c.Check(err, gc.ErrorMatches, `invalid min-juju-version: invalid version "invalid-version"`)
}
func (s *MetaSuite) TestNoMinJujuVersion(c *gc.C) {
meta, err := charm.ReadMeta(strings.NewReader(dummyMetadata))
c.Assert(err, jc.ErrorIsNil)
c.Check(meta.MinJujuVersion, gc.Equals, version.Zero)
}
func (s *MetaSuite) TestCheckMismatchedRelationName(c *gc.C) {
// This Check case cannot be covered by the above
// TestCheckRelationsConstraints tests.
meta := charm.Meta{
Name: "foo",
Provides: map[string]charm.Relation{
"foo": {
Name: "foo",
Role: charm.RolePeer,
Interface: "x",
Scope: charm.ScopeGlobal,
},
},
}
err := meta.Check(charm.FormatV1)
c.Assert(err, gc.ErrorMatches, `charm "foo" has mismatched role "peer"; expected "provider"`)
}
func (s *MetaSuite) TestCheckMismatchedRole(c *gc.C) {
// This Check case cannot be covered by the above
// TestCheckRelationsConstraints tests.
meta := charm.Meta{
Name: "foo",
Provides: map[string]charm.Relation{
"foo": {
Role: charm.RolePeer,
Interface: "foo",
Scope: charm.ScopeGlobal,
},
},
}
err := meta.Check(charm.FormatV1)
c.Assert(err, gc.ErrorMatches, `charm "foo" has mismatched relation name ""; expected "foo"`)
}
func (s *MetaSuite) TestCheckMismatchedExtraBindingName(c *gc.C) {
meta := charm.Meta{
Name: "foo",
ExtraBindings: map[string]charm.ExtraBinding{
"foo": {Name: "bar"},
},
}
err := meta.Check(charm.FormatV1)
c.Assert(err, gc.ErrorMatches, `charm "foo" has invalid extra bindings: mismatched extra binding name: got "bar", expected "foo"`)
}
func (s *MetaSuite) TestCheckEmptyNameKeyOrEmptyExtraBindingName(c *gc.C) {
meta := charm.Meta{
Name: "foo",
ExtraBindings: map[string]charm.ExtraBinding{"": {Name: "bar"}},
}
err := meta.Check(charm.FormatV1)
expectedError := `charm "foo" has invalid extra bindings: missing binding name`
c.Assert(err, gc.ErrorMatches, expectedError)
meta.ExtraBindings = map[string]charm.ExtraBinding{"bar": {Name: ""}}
err = meta.Check(charm.FormatV1)
c.Assert(err, gc.ErrorMatches, expectedError)
}
// Test rewriting of a given interface specification into long form.
//
// InterfaceExpander uses `coerce` to do one of two things:
//
// - Rewrite shorthand to the long form used for actual storage
// - Fills in defaults, including a configurable `limit`
//
// This test ensures test coverage on each of these branches, along
// with ensuring the conversion object properly raises SchemaError
// exceptions on invalid data.
func (s *MetaSuite) TestIfaceExpander(c *gc.C) {
e := charm.IfaceExpander(nil)
path := []string{"<pa", "th>"}
// Shorthand is properly rewritten
v, err := e.Coerce("http", path)
c.Assert(err, gc.IsNil)
c.Assert(v, jc.DeepEquals, map[string]interface{}{"interface": "http", "limit": nil, "optional": false, "scope": string(charm.ScopeGlobal)})
// Defaults are properly applied
v, err = e.Coerce(map[string]interface{}{"interface": "http"}, path)
c.Assert(err, gc.IsNil)
c.Assert(v, jc.DeepEquals, map[string]interface{}{"interface": "http", "limit": nil, "optional": false, "scope": string(charm.ScopeGlobal)})
v, err = e.Coerce(map[string]interface{}{"interface": "http", "limit": 2}, path)
c.Assert(err, gc.IsNil)
c.Assert(v, jc.DeepEquals, map[string]interface{}{"interface": "http", "limit": int64(2), "optional": false, "scope": string(charm.ScopeGlobal)})
v, err = e.Coerce(map[string]interface{}{"interface": "http", "optional": true}, path)
c.Assert(err, gc.IsNil)
c.Assert(v, jc.DeepEquals, map[string]interface{}{"interface": "http", "limit": nil, "optional": true, "scope": string(charm.ScopeGlobal)})
// Invalid data raises an error.
v, err = e.Coerce(42, path)
c.Assert(err, gc.ErrorMatches, `<path>: expected map, got int\(42\)`)
v, err = e.Coerce(map[string]interface{}{"interface": "http", "optional": nil}, path)
c.Assert(err, gc.ErrorMatches, "<path>.optional: expected bool, got nothing")
v, err = e.Coerce(map[string]interface{}{"interface": "http", "limit": "none, really"}, path)
c.Assert(err, gc.ErrorMatches, "<path>.limit: unexpected value.*")
// Can change default limit
e = charm.IfaceExpander(1)
v, err = e.Coerce(map[string]interface{}{"interface": "http"}, path)
c.Assert(err, gc.IsNil)
c.Assert(v, jc.DeepEquals, map[string]interface{}{"interface": "http", "limit": int64(1), "optional": false, "scope": string(charm.ScopeGlobal)})
}
func (s *MetaSuite) TestMetaHooks(c *gc.C) {
meta, err := charm.ReadMeta(repoMeta(c, "wordpress"))
c.Assert(err, gc.IsNil)
hooks := meta.Hooks()
expectedHooks := map[string]bool{
"install": true,
"start": true,
"config-changed": true,
"upgrade-charm": true,
"stop": true,
"remove": true,
"collect-metrics": true,
"meter-status-changed": true,
"leader-elected": true,
"leader-deposed": true,
"leader-settings-changed": true,
"update-status": true,
"cache-relation-created": true,
"cache-relation-joined": true,
"cache-relation-changed": true,
"cache-relation-departed": true,
"cache-relation-broken": true,
"db-relation-created": true,
"db-relation-joined": true,
"db-relation-changed": true,
"db-relation-departed": true,
"db-relation-broken": true,
"logging-dir-relation-created": true,
"logging-dir-relation-joined": true,
"logging-dir-relation-changed": true,
"logging-dir-relation-departed": true,
"logging-dir-relation-broken": true,
"monitoring-port-relation-created": true,
"monitoring-port-relation-joined": true,
"monitoring-port-relation-changed": true,
"monitoring-port-relation-departed": true,
"monitoring-port-relation-broken": true,
"pre-series-upgrade": true,
"post-series-upgrade": true,
"url-relation-created": true,
"url-relation-joined": true,
"url-relation-changed": true,
"url-relation-departed": true,
"url-relation-broken": true,
}
c.Assert(hooks, jc.DeepEquals, expectedHooks)
}
func (s *MetaSuite) TestCodecRoundTripEmpty(c *gc.C) {
for _, codec := range codecs {
c.Logf("codec %s", codec.Name)
empty_input := charm.Meta{}
data, err := codec.Marshal(empty_input)
c.Assert(err, gc.IsNil)
var empty_output charm.Meta
err = codec.Unmarshal(data, &empty_output)
c.Assert(err, gc.IsNil)
c.Assert(empty_input, jc.DeepEquals, empty_output)
}
}
func (s *MetaSuite) TestCodecRoundTrip(c *gc.C) {
var input = charm.Meta{
Name: "Foo",
Summary: "Bar",
Description: "Baz",
Subordinate: true,
Provides: map[string]charm.Relation{
"qux": {
Name: "qux",
Role: charm.RoleProvider,
Interface: "quxx",
Optional: true,
Limit: 42,
Scope: charm.ScopeGlobal,
},
},
Requires: map[string]charm.Relation{
"frob": {
Name: "frob",
Role: charm.RoleRequirer,
Interface: "quxx",
Optional: true,
Limit: 42,
Scope: charm.ScopeContainer,
},
},
Peers: map[string]charm.Relation{
"arble": {
Name: "arble",
Role: charm.RolePeer,
Interface: "quxx",
Optional: true,
Limit: 42,
Scope: charm.ScopeGlobal,
},
},
ExtraBindings: map[string]charm.ExtraBinding{
"b1": {Name: "b1"},
"b2": {Name: "b2"},
},
Categories: []string{"quxxxx", "quxxxxx"},
Tags: []string{"openstack", "storage"},
Terms: []string{"test-term/1", "test-term/2"},
}
for _, codec := range codecs {
c.Logf("codec %s", codec.Name)
data, err := codec.Marshal(input)
c.Assert(err, gc.IsNil)
var output charm.Meta
err = codec.Unmarshal(data, &output)
c.Assert(err, gc.IsNil)
c.Assert(output, jc.DeepEquals, input, gc.Commentf("data: %q", data))
}
}
func (s *MetaSuite) TestCodecRoundTripKubernetes(c *gc.C) {
var input = charm.Meta{
Name: "Foo",
Summary: "Bar",
Description: "Baz",
Subordinate: true,
Provides: map[string]charm.Relation{
"qux": {
Name: "qux",
Role: charm.RoleProvider,
Interface: "quxx",
Optional: true,
Limit: 42,
Scope: charm.ScopeGlobal,
},
},
Requires: map[string]charm.Relation{
"frob": {
Name: "frob",
Role: charm.RoleRequirer,
Interface: "quxx",
Optional: true,
Limit: 42,
Scope: charm.ScopeContainer,
},
},
Peers: map[string]charm.Relation{
"arble": {
Name: "arble",
Role: charm.RolePeer,
Interface: "quxx",
Optional: true,
Limit: 42,
Scope: charm.ScopeGlobal,
},
},
ExtraBindings: map[string]charm.ExtraBinding{
"b1": {Name: "b1"},
"b2": {Name: "b2"},
},
Categories: []string{"quxxxx", "quxxxxx"},
Tags: []string{"openstack", "storage"},
Terms: []string{"test-term/1", "test-term/2"},
Containers: map[string]charm.Container{
"test": charm.Container{
Mounts: []charm.Mount{{
Storage: "test",
Location: "/wow/",
}},
Resource: "test",
},
},
Resources: map[string]resource.Meta{
"test": resource.Meta{
Name: "test",
Type: resource.TypeContainerImage,
},
"test2": resource.Meta{
Name: "test2",
Type: resource.TypeContainerImage,
},
},
Storage: map[string]charm.Storage{
"test": charm.Storage{
Name: "test",
Type: charm.StorageFilesystem,
CountMin: 1,
CountMax: 1,
},
},
}
for _, codec := range codecs {
c.Logf("codec %s", codec.Name)
data, err := codec.Marshal(input)
c.Assert(err, gc.IsNil)
var output charm.Meta
err = codec.Unmarshal(data, &output)
c.Assert(err, gc.IsNil)
c.Assert(output, jc.DeepEquals, input, gc.Commentf("data: %q", data))
}
}
var implementedByTests = []struct {
ifce string
name string
role charm.RelationRole
scope charm.RelationScope
match bool
implicit bool
}{
{"ifce-pro", "pro", charm.RoleProvider, charm.ScopeGlobal, true, false},
{"blah", "pro", charm.RoleProvider, charm.ScopeGlobal, false, false},
{"ifce-pro", "blah", charm.RoleProvider, charm.ScopeGlobal, false, false},
{"ifce-pro", "pro", charm.RoleRequirer, charm.ScopeGlobal, false, false},
{"ifce-pro", "pro", charm.RoleProvider, charm.ScopeContainer, true, false},
{"juju-info", "juju-info", charm.RoleProvider, charm.ScopeGlobal, true, true},
{"blah", "juju-info", charm.RoleProvider, charm.ScopeGlobal, false, false},
{"juju-info", "blah", charm.RoleProvider, charm.ScopeGlobal, false, false},
{"juju-info", "juju-info", charm.RoleRequirer, charm.ScopeGlobal, false, false},
{"juju-info", "juju-info", charm.RoleProvider, charm.ScopeContainer, true, true},
{"ifce-req", "req", charm.RoleRequirer, charm.ScopeGlobal, true, false},
{"blah", "req", charm.RoleRequirer, charm.ScopeGlobal, false, false},
{"ifce-req", "blah", charm.RoleRequirer, charm.ScopeGlobal, false, false},
{"ifce-req", "req", charm.RolePeer, charm.ScopeGlobal, false, false},
{"ifce-req", "req", charm.RoleRequirer, charm.ScopeContainer, true, false},
{"juju-info", "info", charm.RoleRequirer, charm.ScopeContainer, true, false},
{"blah", "info", charm.RoleRequirer, charm.ScopeContainer, false, false},
{"juju-info", "blah", charm.RoleRequirer, charm.ScopeContainer, false, false},
{"juju-info", "info", charm.RolePeer, charm.ScopeContainer, false, false},
{"juju-info", "info", charm.RoleRequirer, charm.ScopeGlobal, false, false},
{"ifce-peer", "peer", charm.RolePeer, charm.ScopeGlobal, true, false},
{"blah", "peer", charm.RolePeer, charm.ScopeGlobal, false, false},
{"ifce-peer", "blah", charm.RolePeer, charm.ScopeGlobal, false, false},
{"ifce-peer", "peer", charm.RoleProvider, charm.ScopeGlobal, false, false},
{"ifce-peer", "peer", charm.RolePeer, charm.ScopeContainer, true, false},
}
func (s *MetaSuite) TestImplementedBy(c *gc.C) {
for i, t := range implementedByTests {
c.Logf("test %d", i)
r := charm.Relation{
Interface: t.ifce,
Name: t.name,
Role: t.role,
Scope: t.scope,
}
c.Assert(r.ImplementedBy(&dummyCharm{}), gc.Equals, t.match)
c.Assert(r.IsImplicit(), gc.Equals, t.implicit)
}
}
var metaYAMLMarshalTests = []struct {
about string
yaml string
}{{
about: "minimal charm",
yaml: `
name: minimal
description: d
summary: s
`,
}, {
about: "charm with lots of stuff",
yaml: `
name: big
description: d
summary: s
subordinate: true
provides:
provideSimple: someinterface
provideLessSimple:
interface: anotherinterface
optional: true
scope: container
limit: 3
requires:
requireSimple: someinterface
requireLessSimple:
interface: anotherinterface
optional: true