Handler tests

handlers/handler.go

@@ -25,9 +25,7 @@ func (handler *TodoHandler) GetAllTodos(c echo.Context) error {
 }
 
 func (handler *TodoHandler) GetById(c echo.Context) error {
-	id := c.QueryParam("id")
-
-	return c.JSON(http.StatusOK, json.NewEncoder(c.Response().Writer).Encode(handler.store.GetById(id)))
+	return c.JSON(http.StatusOK, handler.store.GetById(c.Param("id")))
 }
 
 func (handler *TodoHandler) AddOrUpdateTodo(c echo.Context) error {

tests/integration/todo_handler_test.go

@@ -0,0 +1,62 @@
+package handler
+
+import (
+	"encoding/json"
+	"net/http"
+	"net/http/httptest"
+	"strings"
+	"testing"
+	"time"
+
+	handler "th/GoDoIt/handlers"
+	"th/GoDoIt/models"
+	"th/GoDoIt/storage"
+
+	"github.com/labstack/echo/v4"
+	"github.com/stretchr/testify/assert"
+)
+
+func TestEmptyTodoList(t *testing.T) {
+	e := echo.New()
+	request := httptest.NewRequest(http.MethodGet, "/todo", nil)
+	recorder := httptest.NewRecorder()
+	context := e.NewContext(request, recorder)
+
+	storage := storage.New()
+	handler := handler.New(storage)
+
+	expectedResponseBody := "[]"
+
+	if assert.NoError(t, handler.GetAllTodos(context)) {
+		assert.Equal(t, http.StatusOK, recorder.Code)
+		assert.Equal(t, expectedResponseBody, strings.TrimSuffix(recorder.Body.String(), "\n"))
+	}
+}
+
+func TestCanGetById(t *testing.T) {
+	e := echo.New()
+	request := httptest.NewRequest(http.MethodGet, "/", nil)
+
+	recorder := httptest.NewRecorder()
+	context := e.NewContext(request, recorder)
+	context.SetPath("/todo/:id")
+	context.SetParamNames("id")
+	context.SetParamValues("1")
+
+	var exampleTodoItem models.Todo
+	exampleTodoItem.ID = "1"
+	exampleTodoItem.Title = "test"
+	exampleTodoItem.Description = "test desc"
+	exampleTodoItem.DueDate = time.Now()
+
+	expectedJson, _ := json.Marshal(exampleTodoItem)
+
+	storage := storage.New()
+	storage.Add(&exampleTodoItem)
+	handler := handler.New(storage)
+
+	if assert.NoError(t, handler.GetById(context)) {
+		assert.Equal(t, http.StatusOK, recorder.Code)
+		assert.Equal(t, string(expectedJson), strings.TrimSuffix(recorder.Body.String(), "\n"))
+	}
+}