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Commitf66adac

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authored
chore: enhance parameter validation error messages (#379)
* chore: implement validation in an exported function* chore: enhance parameter validation error messages
1 parent53a68cd commitf66adac

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3 files changed

+159
-70
lines changed

3 files changed

+159
-70
lines changed

‎provider/formtype.go‎

Lines changed: 25 additions & 3 deletions
Original file line numberDiff line numberDiff line change
@@ -115,9 +115,11 @@ var formTypeTruthTable = map[OptionType]map[bool][]ParameterFormType{
115115
// The use case is when using multi-select. The options are 'string' and the
116116
// value is 'list(string)'.
117117
funcValidateFormType(paramTypeOptionType,optionCountint,specifiedFormTypeParameterFormType) (OptionType,ParameterFormType,error) {
118-
allowed,ok:=formTypeTruthTable[paramType][optionCount>0]
118+
optionsExist:=optionCount>0
119+
allowed,ok:=formTypeTruthTable[paramType][optionsExist]
119120
if!ok||len(allowed)==0 {
120-
returnparamType,specifiedFormType,xerrors.Errorf("value type %q is not supported for 'form_types'",paramType)
121+
// This error should really never be hit, as the provider sdk does an enum validation.
122+
returnparamType,specifiedFormType,xerrors.Errorf("\"type\" attribute=%q is not supported, choose one of %v",paramType,OptionTypes())
121123
}
122124

123125
ifspecifiedFormType==ParameterFormTypeDefault {
@@ -126,7 +128,27 @@ func ValidateFormType(paramType OptionType, optionCount int, specifiedFormType P
126128
}
127129

128130
if!slices.Contains(allowed,specifiedFormType) {
129-
returnparamType,specifiedFormType,xerrors.Errorf("value type %q is not supported for 'form_types'",specifiedFormType)
131+
optionMsg:=""
132+
opposite:=formTypeTruthTable[paramType][!optionsExist]
133+
134+
// This extra message tells a user if they are using a valid form_type
135+
// for a 'type', but it is invalid because options do/do-not exist.
136+
// It serves as a more helpful error message.
137+
//
138+
// Eg: form_type=slider is valid for type=number, but invalid if options exist.
139+
// And this error message is more accurate than just saying "form_type=slider is
140+
// not valid for type=number".
141+
ifslices.Contains(opposite,specifiedFormType) {
142+
ifoptionsExist {
143+
optionMsg=" when options exist"
144+
}else {
145+
optionMsg=" when options do not exist"
146+
}
147+
}
148+
returnparamType,specifiedFormType,
149+
xerrors.Errorf("\"form_type\" attribute=%q is not supported for\"type\"=%q%s, choose one of %v",
150+
specifiedFormType,paramType,
151+
optionMsg,toStrings(allowed))
130152
}
131153

132154
// This is the only current special case. If 'multi-select' is selected, the type

‎provider/parameter.go‎

Lines changed: 132 additions & 65 deletions
Original file line numberDiff line numberDiff line change
@@ -124,7 +124,7 @@ func parameterDataSource() *schema.Resource {
124124
}
125125
varvaluestring
126126
ifparameter.Default!="" {
127-
err:=valueIsType(parameter.Type,parameter.Default)
127+
err:=valueIsType(parameter.Type,parameter.Default, cty.Path{cty.GetAttrStep{Name:"default"}})
128128
iferr!=nil {
129129
returnerr
130130
}
@@ -144,6 +144,8 @@ func parameterDataSource() *schema.Resource {
144144
returndiag.Errorf("ephemeral parameter requires the default property")
145145
}
146146

147+
// TODO: Should we move this into the Valid() function on
148+
// Parameter?
147149
iflen(parameter.Validation)==1 {
148150
validation:=&parameter.Validation[0]
149151
err=validation.Valid(parameter.Type,value)
@@ -153,73 +155,27 @@ func parameterDataSource() *schema.Resource {
153155
}
154156

155157
// Validate options
156-
157-
// optionType might differ from parameter.Type. This is ok, and parameter.Type
158-
// should be used for the value type, and optionType for options.
159-
varoptionTypeOptionType
160-
optionType,parameter.FormType,err=ValidateFormType(parameter.Type,len(parameter.Option),parameter.FormType)
158+
_,parameter.FormType,err=ValidateFormType(parameter.Type,len(parameter.Option),parameter.FormType)
161159
iferr!=nil {
162-
returndiag.FromErr(err)
160+
return diag.Diagnostics{
161+
{
162+
Severity:diag.Error,
163+
Summary:"Invalid form_type for parameter",
164+
Detail:err.Error(),
165+
AttributePath: cty.Path{cty.GetAttrStep{Name:"form_type"}},
166+
},
167+
}
163168
}
164169
// Set the form_type back in case the value was changed.
165170
// Eg via a default. If a user does not specify, a default value
166171
// is used and saved.
167172
rd.Set("form_type",parameter.FormType)
168173

169-
iflen(parameter.Option)>0 {
170-
names:=map[string]interface{}{}
171-
values:=map[string]interface{}{}
172-
for_,option:=rangeparameter.Option {
173-
_,exists:=names[option.Name]
174-
ifexists {
175-
returndiag.Errorf("multiple options cannot have the same name %q",option.Name)
176-
}
177-
_,exists=values[option.Value]
178-
ifexists {
179-
returndiag.Errorf("multiple options cannot have the same value %q",option.Value)
180-
}
181-
err:=valueIsType(optionType,option.Value)
182-
iferr!=nil {
183-
returnerr
184-
}
185-
values[option.Value]=nil
186-
names[option.Name]=nil
187-
}
188-
189-
ifparameter.Default!="" {
190-
ifparameter.Type==OptionTypeListString&&optionType==OptionTypeString {
191-
// If the type is list(string) and optionType is string, we have
192-
// to ensure all elements of the default exist as options.
193-
vardefaultValues []string
194-
// TODO: We do this unmarshal in a few spots. It should be standardized.
195-
err=json.Unmarshal([]byte(parameter.Default),&defaultValues)
196-
iferr!=nil {
197-
returndiag.Errorf("default value %q is not a list of strings",parameter.Default)
198-
}
199-
200-
// missing is used to construct a more helpful error message
201-
varmissing []string
202-
for_,defaultValue:=rangedefaultValues {
203-
_,defaultIsValid:=values[defaultValue]
204-
if!defaultIsValid {
205-
missing=append(missing,defaultValue)
206-
}
207-
}
208-
209-
iflen(missing)>0 {
210-
returndiag.Errorf(
211-
"default value %q is not a valid option, values %q are missing from the option",
212-
parameter.Default,strings.Join(missing,", "),
213-
)
214-
}
215-
}else {
216-
_,defaultIsValid:=values[parameter.Default]
217-
if!defaultIsValid {
218-
returndiag.Errorf("%q default value %q must be defined as one of options",parameter.FormType,parameter.Default)
219-
}
220-
}
221-
}
174+
diags:=parameter.Valid()
175+
ifdiags.HasError() {
176+
returndiags
222177
}
178+
223179
returnnil
224180
},
225181
Schema:map[string]*schema.Schema{
@@ -433,7 +389,7 @@ func fixValidationResourceData(rawConfig cty.Value, validation interface{}) (int
433389
returnvArr,nil
434390
}
435391

436-
funcvalueIsType(typOptionType,valuestring) diag.Diagnostics {
392+
funcvalueIsType(typOptionType,valuestring,attrPath cty.Path) diag.Diagnostics {
437393
switchtyp {
438394
caseOptionTypeNumber:
439395
_,err:=strconv.ParseFloat(value,64)
@@ -446,10 +402,9 @@ func valueIsType(typ OptionType, value string) diag.Diagnostics {
446402
returndiag.Errorf("%q is not a bool",value)
447403
}
448404
caseOptionTypeListString:
449-
varitems []string
450-
err:=json.Unmarshal([]byte(value),&items)
451-
iferr!=nil {
452-
returndiag.Errorf("%q is not an array of strings",value)
405+
_,diags:=valueIsListString(value,attrPath)
406+
ifdiags.HasError() {
407+
returndiags
453408
}
454409
caseOptionTypeString:
455410
// Anything is a string!
@@ -459,6 +414,102 @@ func valueIsType(typ OptionType, value string) diag.Diagnostics {
459414
returnnil
460415
}
461416

417+
func (v*Parameter)Valid() diag.Diagnostics {
418+
// optionType might differ from parameter.Type. This is ok, and parameter.Type
419+
// should be used for the value type, and optionType for options.
420+
optionType,_,err:=ValidateFormType(v.Type,len(v.Option),v.FormType)
421+
iferr!=nil {
422+
return diag.Diagnostics{
423+
{
424+
Severity:diag.Error,
425+
Summary:"Invalid form_type for parameter",
426+
Detail:err.Error(),
427+
AttributePath: cty.Path{cty.GetAttrStep{Name:"form_type"}},
428+
},
429+
}
430+
}
431+
432+
optionNames:=map[string]any{}
433+
optionValues:=map[string]any{}
434+
iflen(v.Option)>0 {
435+
for_,option:=rangev.Option {
436+
_,exists:=optionNames[option.Name]
437+
ifexists {
438+
return diag.Diagnostics{{
439+
Severity:diag.Error,
440+
Summary:"Option names must be unique.",
441+
Detail:fmt.Sprintf("multiple options found with the same name %q",option.Name),
442+
},
443+
}
444+
}
445+
_,exists=optionValues[option.Value]
446+
ifexists {
447+
return diag.Diagnostics{
448+
{
449+
Severity:diag.Error,
450+
Summary:"Option values must be unique.",
451+
Detail:fmt.Sprintf("multiple options found with the same value %q",option.Value),
452+
},
453+
}
454+
}
455+
diags:=valueIsType(optionType,option.Value, cty.Path{})
456+
ifdiags.HasError() {
457+
returndiags
458+
}
459+
optionValues[option.Value]=nil
460+
optionNames[option.Name]=nil
461+
}
462+
}
463+
464+
ifv.Default!=""&&len(v.Option)>0 {
465+
ifv.Type==OptionTypeListString&&optionType==OptionTypeString {
466+
// If the type is list(string) and optionType is string, we have
467+
// to ensure all elements of the default exist as options.
468+
defaultValues,diags:=valueIsListString(v.Default, cty.Path{cty.GetAttrStep{Name:"default"}})
469+
ifdiags.HasError() {
470+
returndiags
471+
}
472+
473+
// missing is used to construct a more helpful error message
474+
varmissing []string
475+
for_,defaultValue:=rangedefaultValues {
476+
_,defaultIsValid:=optionValues[defaultValue]
477+
if!defaultIsValid {
478+
missing=append(missing,defaultValue)
479+
}
480+
}
481+
482+
iflen(missing)>0 {
483+
return diag.Diagnostics{
484+
{
485+
Severity:diag.Error,
486+
Summary:"Default values must be a valid option",
487+
Detail:fmt.Sprintf(
488+
"default value %q is not a valid option, values %q are missing from the options",
489+
v.Default,strings.Join(missing,", "),
490+
),
491+
AttributePath: cty.Path{cty.GetAttrStep{Name:"default"}},
492+
},
493+
}
494+
}
495+
}else {
496+
_,defaultIsValid:=optionValues[v.Default]
497+
if!defaultIsValid {
498+
return diag.Diagnostics{
499+
{
500+
Severity:diag.Error,
501+
Summary:"Default value must be a valid option",
502+
Detail:fmt.Sprintf("the value %q must be defined as one of options",v.Default),
503+
AttributePath: cty.Path{cty.GetAttrStep{Name:"default"}},
504+
},
505+
}
506+
}
507+
}
508+
}
509+
510+
returnnil
511+
}
512+
462513
func (v*Validation)Valid(typOptionType,valuestring)error {
463514
iftyp!=OptionTypeNumber {
464515
if!v.MinDisabled {
@@ -519,6 +570,22 @@ func (v *Validation) Valid(typ OptionType, value string) error {
519570
returnnil
520571
}
521572

573+
funcvalueIsListString(valuestring,path cty.Path) ([]string, diag.Diagnostics) {
574+
varitems []string
575+
err:=json.Unmarshal([]byte(value),&items)
576+
iferr!=nil {
577+
returnnil, diag.Diagnostics{
578+
{
579+
Severity:diag.Error,
580+
Summary:"When using list(string) type, value must be a json encoded list of strings",
581+
Detail:fmt.Sprintf("value %q is not a valid list of strings",value),
582+
AttributePath:path,
583+
},
584+
}
585+
}
586+
returnitems,nil
587+
}
588+
522589
// ParameterEnvironmentVariable returns the environment variable to specify for
523590
// a parameter by it's name. It's hashed because spaces and special characters
524591
// can be used in parameter names that may not be valid in env vars.

‎provider/parameter_test.go‎

Lines changed: 2 additions & 2 deletions
Original file line numberDiff line numberDiff line change
@@ -291,7 +291,7 @@ func TestParameter(t *testing.T) {
291291
}
292292
}
293293
`,
294-
ExpectError:regexp.MustCompile("cannot have the same name"),
294+
ExpectError:regexp.MustCompile("Option names must be unique"),
295295
}, {
296296
Name:"DuplicateOptionValue",
297297
Config:`
@@ -308,7 +308,7 @@ func TestParameter(t *testing.T) {
308308
}
309309
}
310310
`,
311-
ExpectError:regexp.MustCompile("cannot have the same value"),
311+
ExpectError:regexp.MustCompile("Option values must be unique"),
312312
}, {
313313
Name:"RequiredParameterNoDefault",
314314
Config:`

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