Saved from https://echo.labstack.com/guide/testing

handler.go

package handler

import (
	"net/http"
	"net/http/httptest"
	"strings"
	"testing"

	"github.com/labstack/echo"
	"github.com/stretchr/testify/assert"
)

var (
	mockDB = map[string]*User{
		"[email protected]": &User{"Jon Snow", "[email protected]"},
	}
	userJSON = `{"name":"Jon Snow","email":"[email protected]"}`
)

func TestCreateUser(t *testing.T) {
	// Setup
	e := echo.New()
	req := httptest.NewRequest(http.MethodPost, "/", strings.NewReader(userJSON))
	req.Header.Set(echo.HeaderContentType, echo.MIMEApplicationJSON)
	rec := httptest.NewRecorder()
	c := e.NewContext(req, rec)
	h := &handler{mockDB}

	// Assertions
	if assert.NoError(t, h.createUser(c)) {
		assert.Equal(t, http.StatusCreated, rec.Code)
		assert.Equal(t, userJSON, rec.Body.String())
	}
}

func TestGetUser(t *testing.T) {
	// Setup
	e := echo.New()
	req := httptest.NewRequest(http.MethodGet, "/", nil)
	rec := httptest.NewRecorder()
	c := e.NewContext(req, rec)
	c.SetPath("/users/:email")
	c.SetParamNames("email")
	c.SetParamValues("[email protected]")
	h := &handler{mockDB}

	// Assertions
	if assert.NoError(t, h.getUser(c)) {
		assert.Equal(t, http.StatusOK, rec.Code)
		assert.Equal(t, userJSON, rec.Body.String())
	}
}

handler_test.go

package handler

import (
	"net/http"
	"net/http/httptest"
	"strings"
	"testing"

	"github.com/labstack/echo"
	"github.com/stretchr/testify/assert"
)

var (
	mockDB = map[string]*User{
		"[email protected]": &User{"Jon Snow", "[email protected]"},
	}
	userJSON = `{"name":"Jon Snow","email":"[email protected]"}`
)

func TestCreateUser(t *testing.T) {
	// Setup
	e := echo.New()
	req := httptest.NewRequest(http.MethodPost, "/", strings.NewReader(userJSON))
	req.Header.Set(echo.HeaderContentType, echo.MIMEApplicationJSON)
	rec := httptest.NewRecorder()
	c := e.NewContext(req, rec)
	h := &handler{mockDB}

	// Assertions
	if assert.NoError(t, h.createUser(c)) {
		assert.Equal(t, http.StatusCreated, rec.Code)
		assert.Equal(t, userJSON, rec.Body.String())
	}
}

func TestGetUser(t *testing.T) {
	// Setup
	e := echo.New()
	req := httptest.NewRequest(http.MethodGet, "/", nil)
	rec := httptest.NewRecorder()
	c := e.NewContext(req, rec)
	c.SetPath("/users/:email")
	c.SetParamNames("email")
	c.SetParamValues("[email protected]")
	h := &handler{mockDB}

	// Assertions
	if assert.NoError(t, h.getUser(c)) {
		assert.Equal(t, http.StatusOK, rec.Code)
		assert.Equal(t, userJSON, rec.Body.String())
	}
}

utils.md

Using Form Payload

f := make(url.Values)
f.Set("name", "Jon Snow")
f.Set("email", "[email protected]")
req := httptest.NewRequest(http.MethodPost, "/", strings.NewReader(f.Encode()))
req.Header.Set(echo.HeaderContentType, echo.MIMEApplicationForm)

Copy

Setting Path Params

c.SetParamNames("id", "email")
c.SetParamValues("1", "[email protected]")

Copy

Setting Query Params

q := make(url.Values)
q.Set("email", "[email protected]")
req := httptest.NewRequest(http.MethodPost, "/?"+q.Encode(), nil)