github-readme-stats/tests/renderTopLanguages.test.js

require("@testing-library/jest-dom");
const cssToObject = require("css-to-object");
const renderTopLanguages = require("../src/cards/top-languages-card");

const { queryByTestId, queryAllByTestId } = require("@testing-library/dom");
const themes = require("../themes");

describe("Test renderTopLanguages", () => {
  const langs = {
    HTML: {
      color: "#0f0",
      name: "HTML",
      size: 200,
    },
    javascript: {
      color: "#0ff",
      name: "javascript",
      size: 200,
    },
    css: {
      color: "#ff0",
      name: "css",
      size: 100,
    },
  };

  it("should render correctly", () => {
    document.body.innerHTML = renderTopLanguages(langs);

    expect(queryByTestId(document.body, "header")).toHaveTextContent(
      "Most Used Languages",
    );

    expect(queryAllByTestId(document.body, "lang-name")[0]).toHaveTextContent(
      "HTML",
    );
    expect(queryAllByTestId(document.body, "lang-name")[1]).toHaveTextContent(
      "javascript",
    );
    expect(queryAllByTestId(document.body, "lang-name")[2]).toHaveTextContent(
      "css",
    );
    expect(queryAllByTestId(document.body, "lang-progress")[0]).toHaveAttribute(
      "width",
      "40%",
    );
    expect(queryAllByTestId(document.body, "lang-progress")[1]).toHaveAttribute(
      "width",
      "40%",
    );
    expect(queryAllByTestId(document.body, "lang-progress")[2]).toHaveAttribute(
      "width",
      "20%",
    );
  });

  it("should hide languages when hide is passed", () => {
    document.body.innerHTML = renderTopLanguages(langs, {
      hide: ["HTML"],
    });
    expect(queryAllByTestId(document.body, "lang-name")[0]).toBeInTheDocument(
      "javascript",
    );
    expect(queryAllByTestId(document.body, "lang-name")[1]).toBeInTheDocument(
      "css",
    );
    expect(queryAllByTestId(document.body, "lang-name")[2]).not.toBeDefined();

    // multiple languages passed
    document.body.innerHTML = renderTopLanguages(langs, {
      hide: ["HTML", "css"],
    });
    expect(queryAllByTestId(document.body, "lang-name")[0]).toBeInTheDocument(
      "javascript",
    );
    expect(queryAllByTestId(document.body, "lang-name")[1]).not.toBeDefined();
  });

  it("should resize the height correctly depending on langs", () => {
    document.body.innerHTML = renderTopLanguages(langs, {});
    expect(document.querySelector("svg")).toHaveAttribute("height", "205");

    document.body.innerHTML = renderTopLanguages(
      {
        ...langs,
        python: {
          color: "#ff0",
          name: "python",
          size: 100,
        },
      },
      {},
    );
    expect(document.querySelector("svg")).toHaveAttribute("height", "245");
  });

  it("should render with custom width set", () => {
    document.body.innerHTML = renderTopLanguages(langs, {});

    expect(document.querySelector("svg")).toHaveAttribute("width", "300");

    document.body.innerHTML = renderTopLanguages(langs, { card_width: 400 });
    expect(document.querySelector("svg")).toHaveAttribute("width", "400");
  });

  it("should render default colors properly", () => {
    document.body.innerHTML = renderTopLanguages(langs);

    const styleTag = document.querySelector("style");
    const stylesObject = cssToObject(styleTag.textContent);

    const headerStyles = stylesObject[".header"];
    const langNameStyles = stylesObject[".lang-name"];

    expect(headerStyles.fill).toBe("#2f80ed");
    expect(langNameStyles.fill).toBe("#333");
    expect(queryByTestId(document.body, "card-bg")).toHaveAttribute(
      "fill",
      "#fffefe",
    );
  });

  it("should render custom colors properly", () => {
    const customColors = {
      title_color: "5a0",
      icon_color: "1b998b",
      text_color: "9991",
      bg_color: "252525",
    };

    document.body.innerHTML = renderTopLanguages(langs, { ...customColors });

    const styleTag = document.querySelector("style");
    const stylesObject = cssToObject(styleTag.innerHTML);

    const headerStyles = stylesObject[".header"];
    const langNameStyles = stylesObject[".lang-name"];

    expect(headerStyles.fill).toBe(`#${customColors.title_color}`);
    expect(langNameStyles.fill).toBe(`#${customColors.text_color}`);
    expect(queryByTestId(document.body, "card-bg")).toHaveAttribute(
      "fill",
      "#252525",
    );
  });

  it("should render custom colors with themes", () => {
    document.body.innerHTML = renderTopLanguages(langs, {
      title_color: "5a0",
      theme: "radical",
    });

    const styleTag = document.querySelector("style");
    const stylesObject = cssToObject(styleTag.innerHTML);

    const headerStyles = stylesObject[".header"];
    const langNameStyles = stylesObject[".lang-name"];

    expect(headerStyles.fill).toBe("#5a0");
    expect(langNameStyles.fill).toBe(`#${themes.radical.text_color}`);
    expect(queryByTestId(document.body, "card-bg")).toHaveAttribute(
      "fill",
      `#${themes.radical.bg_color}`,
    );
  });

  it("should render with all the themes", () => {
    Object.keys(themes).forEach((name) => {
      document.body.innerHTML = renderTopLanguages(langs, {
        theme: name,
      });

      const styleTag = document.querySelector("style");
      const stylesObject = cssToObject(styleTag.innerHTML);

      const headerStyles = stylesObject[".header"];
      const langNameStyles = stylesObject[".lang-name"];

      expect(headerStyles.fill).toBe(`#${themes[name].title_color}`);
      expect(langNameStyles.fill).toBe(`#${themes[name].text_color}`);
      expect(queryByTestId(document.body, "card-bg")).toHaveAttribute(
        "fill",
        `#${themes[name].bg_color}`,
      );
    });
  });

  it("should render with layout compact", () => {
    document.body.innerHTML = renderTopLanguages(langs, { layout: "compact" });

    expect(queryByTestId(document.body, "header")).toHaveTextContent(
      "Most Used Languages",
    );

    expect(queryAllByTestId(document.body, "lang-name")[0]).toHaveTextContent(
      "HTML 40.00%",
    );
    expect(queryAllByTestId(document.body, "lang-progress")[0]).toHaveAttribute(
      "width",
      "120.00",
    );

    expect(queryAllByTestId(document.body, "lang-name")[1]).toHaveTextContent(
      "javascript 40.00%",
    );
    expect(queryAllByTestId(document.body, "lang-progress")[1]).toHaveAttribute(
      "width",
      "120.00",
    );

    expect(queryAllByTestId(document.body, "lang-name")[2]).toHaveTextContent(
      "css 20.00%",
    );
    expect(queryAllByTestId(document.body, "lang-progress")[2]).toHaveAttribute(
      "width",
      "60.00",
    );
  });

  it("should render a translated title", () => {
    document.body.innerHTML = renderTopLanguages(langs, { locale: "cn" });
    expect(document.getElementsByClassName("header")[0].textContent).toBe(
      "最常用的语言",
    );
  });
});