validation_test.go

package fuego

import (
	"testing"

	"github.com/stretchr/testify/assert"
	"github.com/stretchr/testify/require"
)

type validatableStruct struct {
	Name       string `validate:"required,min=3,max=10"`
	Age        int    `validate:"min=18"`
	Required   string `validate:"required"`
	Email      string `validate:"email"`
	ExternalID string `validate:"uuid"`
}

func TestValidate(t *testing.T) {
	t.Run("nil input", func(t *testing.T) {
		err := validate(nil)
		t.Log(err)
		require.NoError(t, err)
	})

	t.Run("struct with errors", func(t *testing.T) {
		me := validatableStruct{
			Name:  "Napoleon Bonaparte",
			Age:   12,
			Email: "napoleon.bonaparte",
		}
		err := validate(me)
		t.Log(err)
		require.Error(t, err)

		var errStructValidation HTTPError
		require.ErrorAs(t, err, &errStructValidation)
		assert.Equal(t, 400, errStructValidation.Status)
		assert.Equal(t, "Validation Error", errStructValidation.Title)
		assert.Len(t, errStructValidation.Errors, 5)
		assert.Equal(t, "400 Validation Error (Name should be max=10, Age should be min=18, Required is required, Email should be a valid email, ExternalID should be a valid UUID)", errStructValidation.PublicError())
		assert.EqualError(t, errStructValidation, `400 Validation Error (Name should be max=10, Age should be min=18, Required is required, Email should be a valid email, ExternalID should be a valid UUID): Key: 'validatableStruct.Name' Error:Field validation for 'Name' failed on the 'max' tag
Key: 'validatableStruct.Age' Error:Field validation for 'Age' failed on the 'min' tag
Key: 'validatableStruct.Required' Error:Field validation for 'Required' failed on the 'required' tag
Key: 'validatableStruct.Email' Error:Field validation for 'Email' failed on the 'email' tag
Key: 'validatableStruct.ExternalID' Error:Field validation for 'ExternalID' failed on the 'uuid' tag`)
	})
}