inspect.lua/spec/inspect_spec.lua

local inspect = require 'inspect' 

context( 'inspect', function()

  context('numbers', function()
    test('Should work with integers', function()
      assert_equal(inspect(1), "1")
    end)

    test('Should work with decimals', function()
      assert_equal(inspect(1.5), "1.5")
    end)

    test('Should work with negative numbers', function()
      assert_equal(inspect(-3.14), "-3.14")
    end)
  end)

  context('strings', function()
    test('Should put quotes around regular strings', function()
      assert_equal(inspect("hello"), '"hello"')
    end)

    test('Should put apostrophes around strings with quotes', function()
      assert_equal(inspect('I have "quotes"'), "'I have \"quotes\"'")
    end)

    test('Should use regular quotes if the string has both quotes and apostrophes', function()
    assert_equal(inspect("I have \"quotes\" and 'apostrophes'"), '"I have \\"quotes\\" and \'apostrophes\'"')
    end)

    test('Should escape escape control characters', function()
       assert_equal(inspect('I have \n new \n lines'), '"I have \\\\n new \\\\n lines"')
       assert_equal(inspect('I have \b a back space'), '"I have \\\\b a back space"')
    end)
  end)

  test('Should work with functions', function()
    assert_equal(inspect(print), '<function>')
  end)

  test('Should work with booleans', function()
    assert_equal(inspect(true), 'true')
    assert_equal(inspect(false), 'false')
  end)

  context('tables', function()

    test('Should work with simple array-like tables', function()
      assert_equal(inspect({1,2,3}), "{1, 2, 3}" )
    end)

    test('Should work with nested arrays', function()
      assert_equal(inspect({'a','b','c', {'d','e'}, 'f'}), '{"a", "b", "c", {"d", "e"}, "f"}' )
    end)

    test('Should work with simple hash-like tables', function()
      assert_equal(inspect({a = 1, b = 2}), "{\n  a = 1,\n  b = 2\n}")
    end)

  end)

end)