Simple Test Case Code

simple.test.js

const TEST = {};

function assertEquals(expected, actual) {
  if (expected !== actual)
    throw new Error(
      `Not equals.\nExpected :${expected}[39m\nActual   :${actual}`
    );
}

function RunAllTest() {
  Object.getOwnPropertyNames(TEST)
    .filter(name => typeof TEST[name] === "function")
    .filter(name => name !== "TestCaseExample")
    .forEach(testCase => {
      console.log(`## TEST: ${testCase}`);
      TEST[testCase].call();
      console.log();
    });
}

//////////////////////////////////////////////////////////////////
// TEST CODES

TEST.test1 = () => {
  // given
  // when
  // then
  assertEquals("1", "1")
};

RunAllTest();