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|
package restjson
import (
"bytes"
"encoding/json"
"io"
"strings"
"testing"
)
func TestGetErrorInfo(t *testing.T) {
cases := map[string]struct {
errorResponse []byte
expectedErrorType string
expectedErrorMsg string
expectedDeserializationError string
}{
"error with code": {
errorResponse: []byte(`{"code": "errorCode", "message": "message for errorCode"}`),
expectedErrorType: "errorCode",
expectedErrorMsg: "message for errorCode",
},
"error with type": {
errorResponse: []byte(`{"__type": "errorCode", "message": "message for errorCode"}`),
expectedErrorType: "errorCode",
expectedErrorMsg: "message for errorCode",
},
"error with only message": {
errorResponse: []byte(`{"message": "message for errorCode"}`),
expectedErrorMsg: "message for errorCode",
},
"error with only code": {
errorResponse: []byte(`{"code": "errorCode"}`),
expectedErrorType: "errorCode",
},
"empty": {
errorResponse: []byte(``),
},
"unknownField": {
errorResponse: []byte(`{"xyz":"abc", "code": "errorCode"}`),
expectedErrorType: "errorCode",
},
"unexpectedEOF": {
errorResponse: []byte(`{"xyz":"abc"`),
expectedDeserializationError: io.ErrUnexpectedEOF.Error(),
},
"caseless compare": {
errorResponse: []byte(`{"Code": "errorCode", "Message": "errorMessage", "xyz": "abc"}`),
expectedErrorType: "errorCode",
expectedErrorMsg: "errorMessage",
},
}
for name, c := range cases {
t.Run(name, func(t *testing.T) {
decoder := json.NewDecoder(bytes.NewReader(c.errorResponse))
actualType, actualMsg, err := GetErrorInfo(decoder)
if err != nil {
if len(c.expectedDeserializationError) == 0 {
t.Fatalf("expected no error, got %v", err.Error())
}
if e, a := c.expectedDeserializationError, err.Error(); !strings.Contains(a, e) {
t.Fatalf("expected error to be %v, got %v", e, a)
}
}
if e, a := c.expectedErrorType, actualType; !strings.EqualFold(e, a) {
t.Fatalf("expected error type to be %v, got %v", e, a)
}
if e, a := c.expectedErrorMsg, actualMsg; !strings.EqualFold(e, a) {
t.Fatalf("expected error message to be %v, got %v", e, a)
}
})
}
}
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