3
0
corteza/tests/helpers/assert.go
2019-09-09 13:04:12 +02:00

72 lines
1.6 KiB
Go

package helpers
import (
"encoding/json"
"net/http"
"github.com/pkg/errors"
)
type (
assertFn func(*http.Response, *http.Request) error
StdErrorResponse struct{ Error struct{ Message string } }
)
// decodes response body to given struct
func decodeBody(rsp *http.Response, s interface{}) error {
if err := json.NewDecoder(rsp.Body).Decode(&s); err != nil {
return errors.Wrap(err, "could not assert IsAuthorized")
}
return nil
}
// Returns first input that could be an error
func firstErr(ee ...interface{}) error {
for _, e := range ee {
switch t := e.(type) {
case error:
if t != nil {
return t
}
case StdErrorResponse:
if t.Error.Message != "" {
return errors.New(t.Error.Message)
}
case string:
if t != "" {
return errors.New(t)
}
}
}
return nil
}
// AssertNoErrors ensures there are no errors in the response
func AssertNoErrors(rsp *http.Response, _ *http.Request) (err error) {
tmp := StdErrorResponse{}
return firstErr(decodeBody(rsp, &tmp), tmp)
}
// AssertError ensures there are no errors in the response
func AssertError(expectedError string) assertFn {
return func(rsp *http.Response, _ *http.Request) (err error) {
tmp := StdErrorResponse{}
if err = decodeBody(rsp, &tmp); err != nil {
return errors.Errorf("Could not decode body: %v", err)
}
if tmp.Error.Message == "" {
return errors.Errorf("No error, expecting: %v", expectedError)
}
if expectedError != tmp.Error.Message {
return errors.Errorf("Expecting error %v, got: %v", expectedError, tmp.Error.Message)
}
return nil
}
}