First

precode.go

@@ -1,58 +1,53 @@
 package main
 
 import (
-    "net/http"
-    "net/http/httptest"
-    "strconv"
-    "strings"
-    "testing"
+	"net/http"
+	"strconv"
+	"strings"
 )
 
 var cafeList = map[string][]string{
-    "moscow": []string{"Мир кофе", "Сладкоежка", "Кофе и завтраки", "Сытый студент"},
+	"moscow": []string{"Мир кофе", "Сладкоежка", "Кофе и завтраки", "Сытый студент"},
 }
 
 func mainHandle(w http.ResponseWriter, req *http.Request) {
-    countStr := req.URL.Query().Get("count")
-    if countStr == "" {
-        w.WriteHeader(http.StatusBadRequest)
-        w.Write([]byte("count missing"))
-        return
-    }
-
-    count, err := strconv.Atoi(countStr)
-    if err != nil {
-        w.WriteHeader(http.StatusBadRequest)
-        w.Write([]byte("wrong count value"))
-        return
-    }
-
-    city := req.URL.Query().Get("city")
-
-    cafe, ok := cafeList[city]
-    if !ok {
-        w.WriteHeader(http.StatusBadRequest)
-        w.Write([]byte("wrong city value"))
-        return
-    }
-
-    if count > len(cafe) {
-        count = len(cafe)
-    }
-
-    answer := strings.Join(cafe[:count], ",")
-
-    w.WriteHeader(http.StatusOK)
-    w.Write([]byte(answer))
+	countStr := req.URL.Query().Get("count")
+	if countStr == "" {
+		w.WriteHeader(http.StatusBadRequest)
+		w.Write([]byte("count missing"))
+		return
+	}
+
+	count, err := strconv.Atoi(countStr)
+	if err != nil {
+		w.WriteHeader(http.StatusBadRequest)
+		w.Write([]byte("wrong count value"))
+		return
+	}
+
+	city := req.URL.Query().Get("city")
+
+	cafe, ok := cafeList[city]
+	if !ok {
+		w.WriteHeader(http.StatusBadRequest)
+		w.Write([]byte("wrong city value"))
+		return
+	}
+
+	if count > len(cafe) {
+		count = len(cafe)
+	}
+
+	answer := strings.Join(cafe[:count], ",")
+
+	w.WriteHeader(http.StatusOK)
+	w.Write([]byte(answer))
 }
 
-func TestMainHandlerWhenCountMoreThanTotal(t *testing.T) {
-    totalCount := 4
-    req := ... // здесь нужно создать запрос к сервису
-
-    responseRecorder := httptest.NewRecorder()
-    handler := http.HandlerFunc(mainHandle)
-    handler.ServeHTTP(responseRecorder, req)
-
-    // здесь нужно добавить необходимые проверки
+func main() {
+	http.HandleFunc(`/cafe`, mainHandle)
+	err := http.ListenAndServe(":8080", nil)
+	if err != nil {
+		panic(err)
+	}
 }

precode_test.go

@@ -0,0 +1,52 @@
+package main
+
+import (
+	"net/http"
+	"net/http/httptest"
+	"strings"
+	"testing"
+
+	"github.com/stretchr/testify/assert"
+)
+
+func TestMainHandlerWhenCountMoreThanTotal(t *testing.T) {
+	totalCount := 4
+	req := httptest.NewRequest("GET", "/cafe?count=10&city=moscow", nil) // здесь нужно создать запрос к сервису
+
+	responseRecorder := httptest.NewRecorder()
+	handler := http.HandlerFunc(mainHandle)
+	handler.ServeHTTP(responseRecorder, req)
+
+	body := responseRecorder.Body.String()
+	list := strings.Split(body, ",")
+
+	assert.Equal(t, http.StatusOK, responseRecorder.Code)
+	assert.Len(t, list, totalCount)
+	// здесь нужно добавить необходимые проверки
+}
+
+func TestMainHandlerNotEmpty(t *testing.T) {
+	req := httptest.NewRequest("GET", "/cafe?count=4&city=moscow", nil)
+
+	responseRecorder := httptest.NewRecorder()
+	handler := http.HandlerFunc(mainHandle)
+	handler.ServeHTTP(responseRecorder, req)
+
+	body := responseRecorder.Body.String()
+
+	assert.Equal(t, http.StatusOK, responseRecorder.Code)
+	assert.NotEmpty(t, body)
+}
+
+func TestMainHandlerWrongCity(t *testing.T) {
+	req := httptest.NewRequest("GET", "/cafe?count=2&city=london", nil)
+
+	responseRecorder := httptest.NewRecorder()
+	handler := http.HandlerFunc(mainHandle)
+	handler.ServeHTTP(responseRecorder, req)
+
+	body := responseRecorder.Body.String()
+
+	assert.Equal(t, http.StatusBadRequest, responseRecorder.Code)
+	assert.Equal(t, "wrong city value", body)
+}