/** @test **/
 public function getTheme_ReturnsNullWhenGivenAnInvalidThemeId()
 {
     // Arrange
     $id = -100;
     $this->wrapperFake->setResponse("get", ShopifyEndpoints::getTheme($id), HttpWrapperFake::NOT_FOUND);
     // Act
     $theme = $this->clientWithFake->getTheme($id);
     // Assert
     $this->assertNull($theme);
 }