common_test.go

package binding

import (
	"mime/multipart"
	"net/http"

	"github.com/go-martini/martini"
)

// These types are mostly contrived examples, but they're used
// across many test cases. The idea is to cover all the scenarios
// that this binding package might encounter in actual use.
type (

	// For basic test cases with a required field
	Post struct {
		Title   string `form:"title" json:"title" binding:"required"`
		Content string `form:"content" json:"content"`
	}

	// To be used as a nested struct (with a required field)
	Person struct {
		Name  string `form:"name" json:"name" binding:"required"`
		Email string `form:"email" json:"email"`
	}

	// For advanced test cases: multiple values, embedded
	// and nested structs, an ignored field, and single
	// and multiple file uploads
	BlogPost struct {
		Post
		Id          int                     `form:"id" binding:"required"` // JSON not specified here for test coverage
		Ignored     string                  `form:"-" json:"-"`
		Ratings     []int                   `form:"rating" json:"ratings"`
		Author      Person                  `json:"author"`
		Coauthor    *Person                 `json:"coauthor"`
		HeaderImage *multipart.FileHeader   `form:"headerImage"`
		Pictures    []*multipart.FileHeader `form:"picture"`
		IsActive    *bool                   `form:"is_active"`
		unexported  string                  `form:"unexported"`
	}

	EmbedPerson struct {
		*Person
	}

	// The common function signature of the handlers going under test.
	handlerFunc func(interface{}, ...interface{}) martini.Handler

	// Used for testing mapping an interface to the context
	// If used (withInterface = true in the testCases), a modeler
	// should be mapped to the context as well as BlogPost, meaning
	// you can receive a modeler in your application instead of a
	// concrete BlogPost.
	modeler interface {
		Model() string
	}
)

func (p Post) Validate(errs Errors, req *http.Request) Errors {
	if len(p.Title) < 10 {
		errs = append(errs, Error{
			FieldNames:     []string{"title"},
			Classification: "LengthError",
			Message:        "Life is too short",
		})
	}
	return errs
}

func (p Post) Model() string {
	return p.Title
}

const (
	testRoute       = "/test"
	formContentType = "application/x-www-form-urlencoded"
)