mkwtys/bundle-size

const assert = require("assert");
const reporter = require("../lib/reporter");

describe("reporter", function () {
  it("no data", function () {
    assert.throws(() => {
      reporter();
    });
  });

  it("empty", function () {
    const result = reporter([]);
    assert(typeof result === "string");
  });

  function fixtureTest(data, expectedLines) {
    const result = reporter(data);
    assert(result === expectedLines.join("\n"));
  }

  it("example", function () {
    fixtureTest(
      [
        {
          packages: "react@15.2.1, redux@3.5.2",
          bundle: "155.65 kB",
          min: "78.43 kB",
          gzip: "24.78 kB",
        },
        {
          packages: "react@15.2.1, redux@3.5.2",
          bundle: "150.89 kB",
          min: "71.58 kB",
          gzip: "23.54 kB",
          env: "development",
        },
        {
          packages: "react@15.2.1, redux@3.5.2",
          bundle: "150.81 kB",
          min: "57.87 kB",
          gzip: "18.28 kB",
          env: "production",
        },
      ],
      [
        "react@15.2.1, redux@3.5.2",
        "",
        "env          bundle     minify    gzip      ",
        "--           155.65 kB  78.43 kB  24.78 kB  ",
        "development  150.89 kB  71.58 kB  23.54 kB  ",
        "production   150.81 kB  57.87 kB  18.28 kB  ",
        "",
      ]
    );
  });

  it("one package", function () {
    fixtureTest(
      [
        {
          packages: "packages",
          bundle: 0,
          min: 0,
          gzip: 0,
        },
      ],
      [
        "packages",
        "",
        "env  bundle  minify  gzip  ",
        "--   0       0       0     ",
        "",
      ]
    );
  });

  it("multi package", function () {
    fixtureTest(
      [
        {
          packages: "packages, packages2",
          bundle: 0,
          min: 0,
          gzip: 0,
        },
      ],
      [
        "packages, packages2",
        "",
        "env  bundle  minify  gzip  ",
        "--   0       0       0     ",
        "",
      ]
    );
  });

  it("envs", function () {
    fixtureTest(
      [
        {
          packages: "packages",
          bundle: 0,
          min: 0,
          gzip: 0,
        },
        {
          packages: "packages",
          bundle: 0,
          min: 0,
          gzip: 0,
          env: "development",
        },
        { packages: "packages", bundle: 0, min: 0, gzip: 0, env: "production" },
      ],
      [
        "packages",
        "",
        "env          bundle  minify  gzip  ",
        "--           0       0       0     ",
        "development  0       0       0     ",
        "production   0       0       0     ",
        "",
      ]
    );
  });
});