Поправил клиента немного.

cmd/main_test.go

@@ -17,7 +17,7 @@ const testPortBase = 3000
 func TestIntegrationPositive(t *testing.T) {
 	testPort := strconv.Itoa(testPortBase + 1)
 	wg := sync.WaitGroup{}
-	server := &http.Server{Addr: "localhost:" + testPort, Handler: http.FileServer(http.Dir("./test/data"))}
+	server := &http.Server{Addr: "localhost:" + testPort, Handler: http.FileServer(http.Dir("../test/data"))}
 	go func() {
 		err := server.ListenAndServe()
 		if err != nil {
@@ -31,10 +31,17 @@ func TestIntegrationPositive(t *testing.T) {
 
 	//time.Sleep(30*time.Second)
 	// Реализовать тесты логики приложения (ресайзы по разным требованиям):
-	wg.Add(2)
+	wg.Add(3)
+	t.Run("test static", func(t *testing.T) {
+		defer wg.Done()
+		body, resp, err := request("http://localhost:"+testPort+"/gopher_original_1024x504.jpg", 15*time.Second)
+		require.NoError(t, err)
+		require.NotNil(t, body)
+		require.Equal(t, 200, resp.StatusCode)
+	})
 	t.Run("remote server return jpeg", func(t *testing.T) {
 		defer wg.Done()
-		body, resp, err := request("http://localhost:8080/fill/1024/504/localhost:"+testPort+"/gopher_original_1024x504.jpg", 15*time.Second)
+		body, resp, err := request("http://localhost:80/fill/1024/504/localhost:"+testPort+"/gopher_original_1024x504.jpg", 15*time.Second)
 		require.NoError(t, err)
 		require.NotNil(t, body)
 		require.Equal(t, 200, resp.StatusCode)
@@ -54,7 +61,7 @@ func TestIntegrationPositive(t *testing.T) {
 func TestIntegrationNegative(t *testing.T) {
 	testPort := strconv.Itoa(testPortBase + 2)
 	wg := sync.WaitGroup{}
-	server := &http.Server{Addr: "localhost:" + testPort, Handler: http.FileServer(http.Dir("./test/data"))}
+	server := &http.Server{Addr: "localhost:" + testPort, Handler: http.FileServer(http.Dir("../test/data"))}
 	go func() {
 		err := server.ListenAndServe()
 		if err != nil {

internal/application/query.go

@@ -1,7 +1,6 @@
 package application
 
 import (
-	"context"
 	"errors"
 	"fmt"
 	"io/ioutil"
@@ -44,10 +43,8 @@ func (q Query) id() string {
 }
 
 func (q Query) fromOrigin(headers http.Header, timeout time.Duration) ([]byte, *http.Response, error) {
-	client := &http.Client{}
-	ctx, cancel := context.WithTimeout(context.Background(), timeout)
-	defer cancel()
-	req, err := http.NewRequestWithContext(ctx, "GET", "http://"+q.URL.Host+q.URL.Path, nil)
+	client := &http.Client{Timeout: timeout}
+	req, err := http.NewRequest("GET", "http://"+q.URL.Host+q.URL.Path, nil)
 	if err != nil {
 		return nil, nil, fmt.Errorf("can't create request: %w", err)
 	}

internal/config/config.go

@@ -49,7 +49,7 @@ func (c *Config) SetDefault() {
 	c.Cache = struct {
 		Capacity    int
 		StoragePath string
-	}{Capacity: 20, StoragePath: "./assets/cache"}
+	}{Capacity: 20, StoragePath: "../assets/cache"}
 	c.Query = struct{ Timeout int }{Timeout: 15}
 	c.Log = struct {
 		File       string