index.ts

test("should print hello world", () => {
  // Run the hello command and capture the output
  const output = childProcess.execSync(`tcli hello`, {
    encoding: "utf8",
  });

  // Check that the output is correct
  expect(output).to.equal("Hello, World!\n");
});

test("should print a greeting", () => {
  // Run the hello command and capture the output
  const output = childProcess.execSync(`tcli Hello Rahul`, {
    encoding: "utf8",
  });

  // Check that the output is correct
  expect(output).to.equal("Hello, Rahul!\n");
});

test("should perform the specified operation", () => {
  // Run the calculate command and capture the output
  const output = childProcess.execSync(`tcli calculate 3 4 -o multiply`, {
    encoding: "utf8",
  });

  // Check that the output is correct
  expect(output).to.equal("12\n");
});