Added comments

backend/internal/config/config_test.go

@@ -5,8 +5,12 @@ import (
 	"testing"
 )
 
+// TestNewConfig tests the creation of a new configuration object
 func TestNewConfig(t *testing.T) {
+	// Arrange
 	c := NewConfig()
+
+	// Act & Assert
 	if c.Port != 8080 {
 		t.Errorf("Expected port to be 8080, got %d", c.Port)
 	}
@@ -24,9 +28,15 @@ func TestNewConfig(t *testing.T) {
 	}
 }
 
+// TestWriteConfig tests the function to write the configuration to a file
 func TestWriteConfig(t *testing.T) {
+	// Arrange
 	c := NewConfig()
+
+	//Act
 	err := c.WriteConfigToFile("test.toml")
+
+	// Assert
 	if err != nil {
 		t.Errorf("Expected no error, got %s", err)
 	}
@@ -35,14 +45,23 @@ func TestWriteConfig(t *testing.T) {
 	_ = os.Remove("test.toml")
 }
 
+// TestReadConfig tests the function to read the configuration from a file
 func TestReadConfig(t *testing.T) {
+	// Arrange
 	c := NewConfig()
+
+	// Act
 	err := c.WriteConfigToFile("test.toml")
+
+	// Assert
 	if err != nil {
 		t.Errorf("Expected no error, got %s", err)
 	}
 
+	// Act
 	c2, err := ReadConfigFromFile("test.toml")
+
+	// Assert
 	if err != nil {
 		t.Errorf("Expected no error, got %s", err)
 	}