test.js

const test = require("ava");
const React = require("react");
const renderer = require("react-test-renderer");
const fs = require("fs");
const filenameMap = require("./filenameMap");
const commonjsIcons = require("./package/index");
const commonjsIconsLight = require("./package/light/index");

test("the npm package", (t) => {
  // should set sideEffects to false to allow webpack to optimize re-exports
  const packageJson = require("./package/package.json");
  t.false(packageJson.sideEffects);
});

for (const iconName of Object.keys(commonjsIcons)) {
  test(`icons > ${iconName}`, (t) => {
    const renderedIcon = renderer
      .create(React.createElement(commonjsIcons[iconName]))
      .toJSON();
    // t.is(renderedIcon[0].type, 'style') // generated by emotion
    t.is(renderedIcon[1].type, "svg");
    t.is(renderedIcon[1].props["data-testid"], `${iconName}Icon`);
  });
}

test("ES module index file", (t) => {
  const esmReExports = fs
    .readFileSync("./package/esm/index.js", "utf-8")
    .split("\n")
    .filter((line) => line.length > 0);
  t.is(esmReExports.length, Object.keys(commonjsIcons).length);

  for (const line of esmReExports) {
    const match = line.match(
      /^export \{ default as (.+?) \} from '\.\/(.+?)'$/
    );
    t.is(filenameMap[match[1]] || match[1], match[2]);
    t.truthy(commonjsIcons[match[1]]);
  }
});

for (const iconName of Object.keys(commonjsIconsLight)) {
  test(`light icons > ${iconName}`, (t) => {
    const renderedIcon = renderer
      .create(React.createElement(commonjsIconsLight[iconName]))
      .toJSON();
    // t.is(renderedIcon[0].type, 'style') // generated by emotion
    t.is(renderedIcon[1].type, "svg");
    t.is(renderedIcon[1].props["data-testid"], `${iconName}Icon`);
  });
}

test("mdi-light ES module index file", (t) => {
  const esmReExports = fs
    .readFileSync("./package/esm/light/index.js", "utf-8")
    .split("\n")
    .filter((line) => line.length > 0);
  t.is(esmReExports.length, Object.keys(commonjsIconsLight).length);

  for (const line of esmReExports) {
    const match = line.match(
      /^export \{ default as (.+?) \} from '\.\/(.+?)'$/
    );
    t.is(match[1], match[2]);
    t.truthy(commonjsIconsLight[match[1]]);
  }
});