func (s *S) TestSchemaMap(c *gc.C) {
fields1 := schema.FieldMap(schema.Fields{
"type": schema.Const(1),
"a": schema.Const(2),
}, nil)
fields2 := schema.FieldMap(schema.Fields{
"type": schema.Const(3),
"b": schema.Const(4),
}, nil)
sch := schema.FieldMapSet("type", []schema.Checker{fields1, fields2})
out, err := sch.Coerce(map[string]int{"type": 1, "a": 2}, aPath)
c.Assert(err, gc.IsNil)
c.Assert(out, gc.DeepEquals, map[string]interface{}{"type": 1, "a": 2})
out, err = sch.Coerce(map[string]int{"type": 3, "b": 4}, aPath)
c.Assert(err, gc.IsNil)
c.Assert(out, gc.DeepEquals, map[string]interface{}{"type": 3, "b": 4})
out, err = sch.Coerce(map[string]int{}, aPath)
c.Assert(out, gc.IsNil)
c.Assert(err, gc.ErrorMatches, `<path>\.type: expected supported selector, got nothing`)
out, err = sch.Coerce(map[string]int{"type": 2}, aPath)
c.Assert(out, gc.IsNil)
c.Assert(err, gc.ErrorMatches, `<path>\.type: expected supported selector, got int\(2\)`)
out, err = sch.Coerce(map[string]int{"type": 3, "b": 5}, aPath)
c.Assert(out, gc.IsNil)
c.Assert(err, gc.ErrorMatches, `<path>\.b: expected 4, got int\(5\)`)
out, err = sch.Coerce(42, aPath)
c.Assert(out, gc.IsNil)
c.Assert(err, gc.ErrorMatches, `<path>: expected map, got int\(42\)`)
out, err = sch.Coerce(nil, aPath)
c.Assert(out, gc.IsNil)
c.Assert(err, gc.ErrorMatches, `<path>: expected map, got nothing`)
// First path entry shouldn't have dots in an error message.
out, err = sch.Coerce(map[string]int{"a": 1}, nil)
c.Assert(out, gc.IsNil)
c.Assert(err, gc.ErrorMatches, `type: expected supported selector, got nothing`)
}
func (s *S) TestFieldMapDefaultInvalid(c *gc.C) {
fields := schema.Fields{
"a": schema.Const("A"),
}
defaults := schema.Defaults{
"a": "B",
}
sch := schema.FieldMap(fields, defaults)
_, err := sch.Coerce(map[string]interface{}{}, aPath)
c.Assert(err, gc.ErrorMatches, `<path>.a: expected "A", got string\("B"\)`)
}
// ValidateUnknownAttrs checks the unknown attributes of the config against
// the supplied fields and defaults, and returns an error if any fails to
// validate. Unknown fields are warned about, but preserved, on the basis
// that they are reasonably likely to have been written by or for a version
// of juju that does recognise the fields, but that their presence is still
// anomalous to some degree and should be flagged (and that there is thereby
// a mechanism for observing fields that really are typos etc).
func (cfg *Config) ValidateUnknownAttrs(fields schema.Fields, defaults schema.Defaults) (map[string]interface{}, error) {
attrs := cfg.UnknownAttrs()
checker := schema.FieldMap(fields, defaults)
coerced, err := checker.Coerce(attrs, nil)
if err != nil {
logger.Debugf("coercion failed attributes: %#v, checker: %#v, %v", attrs, checker, err)
return nil, err
}
result := coerced.(map[string]interface{})
for name, value := range attrs {
if fields[name] == nil {
logger.Warningf("unknown config field %q", name)
result[name] = value
}
}
return result, nil
}
func (s *S) TestFieldMap(c *gc.C) {
fields := schema.Fields{
"a": schema.Const("A"),
"b": schema.Const("B"),
"c": schema.Const("C"),
}
defaults := schema.Defaults{
"b": schema.Omit,
"c": "C",
}
sch := schema.FieldMap(fields, defaults)
assertFieldMap(c, sch)
out, err := sch.Coerce(map[string]interface{}{"a": "A", "b": "B", "d": "D"}, aPath)
c.Assert(err, gc.IsNil)
c.Assert(out, gc.DeepEquals, map[string]interface{}{"a": "A", "b": "B", "c": "C"})
out, err = sch.Coerce(map[string]interface{}{"a": "A", "d": "D"}, aPath)
c.Assert(err, gc.IsNil)
c.Assert(out, gc.DeepEquals, map[string]interface{}{"a": "A", "c": "C"})
}
// which are not allowed to change in the lifetime
// of an environment.
var immutableAttributes = []string{
"name",
"type",
"firewall-mode",
"state-port",
"api-port",
"bootstrap-timeout",
"bootstrap-retry-delay",
"bootstrap-addresses-delay",
"lxc-use-clone",
}
var (
withDefaultsChecker = schema.FieldMap(fields, defaults)
noDefaultsChecker = schema.FieldMap(fields, alwaysOptional)
)
// ValidateUnknownAttrs checks the unknown attributes of the config against
// the supplied fields and defaults, and returns an error if any fails to
// validate. Unknown fields are warned about, but preserved, on the basis
// that they are reasonably likely to have been written by or for a version
// of juju that does recognise the fields, but that their presence is still
// anomalous to some degree and should be flagged (and that there is thereby
// a mechanism for observing fields that really are typos etc).
func (cfg *Config) ValidateUnknownAttrs(fields schema.Fields, defaults schema.Defaults) (map[string]interface{}, error) {
attrs := cfg.UnknownAttrs()
checker := schema.FieldMap(fields, defaults)
coerced, err := checker.Coerce(attrs, nil)
if err != nil {
if err != nil {
return
}
m := v.(map[string]interface{})
if _, ok := m["limit"]; !ok {
m["limit"] = c.limit
}
return ifaceSchema.Coerce(m, path)
}
var ifaceSchema = schema.FieldMap(
schema.Fields{
"interface": schema.String(),
"limit": schema.OneOf(schema.Const(nil), schema.Int()),
"scope": schema.OneOf(schema.Const(string(ScopeGlobal)), schema.Const(string(ScopeContainer))),
"optional": schema.Bool(),
},
schema.Defaults{
"scope": string(ScopeGlobal),
"optional": false,
},
)
var charmSchema = schema.FieldMap(
schema.Fields{
"name": schema.String(),
"summary": schema.String(),
"description": schema.String(),
"peers": schema.StringMap(ifaceExpander(int64(1))),
"provides": schema.StringMap(ifaceExpander(nil)),
"requires": schema.StringMap(ifaceExpander(int64(1))),
"revision": schema.Int(), // Obsolete