test: add static assets handler test

handlers/handler_test.go

@@ -9,5 +9,5 @@ import (
 type assets struct{}
 
 func (assets) Open(p string) (fs.File, error) {
-	return os.Open(path.Join("./", p))
+	return os.Open(path.Join("../", p))
 }

handlers/static_test.go

@@ -0,0 +1,35 @@
+package handlers
+
+import (
+	"mime"
+	"net/http"
+	"net/http/httptest"
+	"os"
+	"testing"
+
+	"github.com/rramiachraf/dumb/utils"
+)
+
+func TestStaticAssets(t *testing.T) {
+	r, err := http.NewRequest(http.MethodGet, "/static/style.css", nil)
+	if err != nil {
+		t.Fatal(err)
+	}
+
+	rr := httptest.NewRecorder()
+	l := utils.NewLogger(os.Stdout)
+	m := New(l, &assets{})
+
+	m.ServeHTTP(rr, r)
+
+	contentType := rr.Header().Get("content-type")
+	expectedContentType := mime.TypeByExtension(".css")
+
+	if contentType != expectedContentType {
+		t.Fatalf("expected %q, got %q", expectedContentType, contentType)
+	}
+
+	if rr.Code != 200 {
+		t.Fatalf("expected %d, got %d", 200, rr.Code)
+	}
+}