mod tests {
  use crate::ui::theme::{Background, Style, Theme, ThemeDefinition};
  use pretty_assertions::assert_eq;
  use ratatui::style::Color;

  #[test]
  fn test_background_default() {
    let expected_background = Background {
      enabled: Some(true),
      color: Some(Color::Rgb(35, 50, 55)),
    };

    assert_eq!(Background::default(), expected_background);
  }

  #[test]
  fn test_theme_default() {
    let expected_theme = Theme {
      background: Some(Background {
        enabled: Some(true),
        color: Some(Color::Rgb(35, 50, 55)),
      }),
      awaiting_import: Some(Style {
        color: Some(Color::Rgb(255, 170, 66)),
      }),
      indeterminate: Some(Style {
        color: Some(Color::Rgb(255, 170, 66)),
      }),
      default: Some(Style {
        color: Some(Color::White),
      }),
      downloaded: Some(Style {
        color: Some(Color::Green),
      }),
      downloading: Some(Style {
        color: Some(Color::Magenta),
      }),
      failure: Some(Style {
        color: Some(Color::Red),
      }),
      help: Some(Style {
        color: Some(Color::LightBlue),
      }),
      missing: Some(Style {
        color: Some(Color::Red),
      }),
      primary: Some(Style {
        color: Some(Color::Cyan),
      }),
      secondary: Some(Style {
        color: Some(Color::Yellow),
      }),
      success: Some(Style {
        color: Some(Color::Green),
      }),
      system_function: Some(Style {
        color: Some(Color::Yellow),
      }),
      unmonitored: Some(Style {
        color: Some(Color::Gray),
      }),
      unmonitored_missing: Some(Style {
        color: Some(Color::Yellow),
      }),
      unreleased: Some(Style {
        color: Some(Color::LightCyan),
      }),
      warning: Some(Style {
        color: Some(Color::Magenta),
      }),
    };

    assert_eq!(Theme::default(), expected_theme);
  }

  #[test]
  fn test_default_theme_definition() {
    let expected_theme_definition = ThemeDefinition {
      name: String::new(),
      theme: Theme::default(),
    };

    assert_eq!(ThemeDefinition::default(), expected_theme_definition);
  }

  #[test]
  fn test_deserialization_defaults_to_using_default_theme_values_when_missing() {
    let theme_yaml = r#""#;
    let theme: Theme = serde_yaml::from_str(theme_yaml).unwrap();

    assert_eq!(theme, Theme::default());
  }

  #[test]
  fn test_deserialization_does_not_overwrite_non_empty_fields_with_default_values() {
    let theme_yaml = r###"
background:
  enabled: false
  color: "#000000"
awaiting_import:
  color: "#000000"
indeterminate:
  color: "#000000"
default:
  color: "#000000"
downloaded:
  color: "#000000"
downloading:
  color: "#000000"
failure:
  color: "#000000"
help:
  color: "#000000"
missing:
  color: "#000000"
primary:
  color: "#000000"
secondary:
  color: "#000000"
success:
  color: "#000000"
system_function:
  color: "#000000"
unmonitored:
  color: "#000000"
unmonitored_missing:
  color: "#000000"
unreleased:
  color: "#000000"
warning:
  color: "#000000"
"###;
    let theme: Theme = serde_yaml::from_str(theme_yaml).unwrap();
    let expected_theme = Theme {
      background: Some(Background {
        enabled: Some(false),
        color: Some(Color::Rgb(0, 0, 0)),
      }),
      awaiting_import: Some(Style {
        color: Some(Color::Rgb(0, 0, 0)),
      }),
      indeterminate: Some(Style {
        color: Some(Color::Rgb(0, 0, 0)),
      }),
      default: Some(Style {
        color: Some(Color::Rgb(0, 0, 0)),
      }),
      downloaded: Some(Style {
        color: Some(Color::Rgb(0, 0, 0)),
      }),
      downloading: Some(Style {
        color: Some(Color::Rgb(0, 0, 0)),
      }),
      failure: Some(Style {
        color: Some(Color::Rgb(0, 0, 0)),
      }),
      help: Some(Style {
        color: Some(Color::Rgb(0, 0, 0)),
      }),
      missing: Some(Style {
        color: Some(Color::Rgb(0, 0, 0)),
      }),
      primary: Some(Style {
        color: Some(Color::Rgb(0, 0, 0)),
      }),
      secondary: Some(Style {
        color: Some(Color::Rgb(0, 0, 0)),
      }),
      success: Some(Style {
        color: Some(Color::Rgb(0, 0, 0)),
      }),
      system_function: Some(Style {
        color: Some(Color::Rgb(0, 0, 0)),
      }),
      unmonitored: Some(Style {
        color: Some(Color::Rgb(0, 0, 0)),
      }),
      unmonitored_missing: Some(Style {
        color: Some(Color::Rgb(0, 0, 0)),
      }),
      unreleased: Some(Style {
        color: Some(Color::Rgb(0, 0, 0)),
      }),
      warning: Some(Style {
        color: Some(Color::Rgb(0, 0, 0)),
      }),
    };

    assert_eq!(theme, expected_theme);
  }
}