refactor: internal package

internal/httpx/mock_test.go

@@ -0,0 +1,34 @@
+package httpx
+
+import (
+	"io"
+	"net/http"
+	"testing"
+)
+
+func TestMockClient(t *testing.T) {
+	Mock()
+
+	const url = "https://codapi.org/example.txt"
+	req, _ := http.NewRequest("GET", url, nil)
+
+	resp, err := Do(req)
+	if err != nil {
+		t.Errorf("Do: unexpected error %v", err)
+	}
+	defer resp.Body.Close()
+
+	if resp.StatusCode != http.StatusOK {
+		t.Errorf("Do: expected status code %d, got %d", http.StatusOK, resp.StatusCode)
+	}
+
+	body, err := io.ReadAll(resp.Body)
+	if err != nil {
+		t.Errorf("io.ReadAll: unexpected error %v", err)
+	}
+
+	want := "hello"
+	if string(body) != want {
+		t.Errorf("Do: expected %v, got %v", want, string(body))
+	}
+}