// test equalText
const assert = require('assert')
const math = require('../../../src/main')
const bignumber = math.bignumber
const matrix = math.matrix
const sparse = math.sparse
const equalText = math.equalText

describe('equalText', function () {
  it('should perform lexical comparison for two strings', function () {
    assert.strictEqual(equalText('abd', 'abc'), false)
    assert.strictEqual(equalText('abc', 'abc'), true)
    assert.strictEqual(equalText('abc', 'abd'), false)

    // lexical sorting of strings
    assert.strictEqual(equalText('2', '10'), false)
    assert.strictEqual(equalText('10', '2'), false)
    assert.strictEqual(equalText('10', '10'), true)
    assert.strictEqual(equalText('2e3', '2000'), false)
  })

  describe('Array', function () {
    it('should compare array - scalar', function () {
      assert.deepStrictEqual(equalText('B', ['A', 'B', 'C']), [false, true, false])
      assert.deepStrictEqual(equalText(['A', 'B', 'C'], 'B'), [false, true, false])
    })

    it('should compare array - array', function () {
      assert.deepStrictEqual(equalText([['D', 'E', 'C'], ['B', 'C', 'E']], [['F', 'B', 'C'], ['A', 'D', 'C']]), [[false, false, true], [false, false, false]])
    })

    it('should compare array - dense matrix', function () {
      assert.deepStrictEqual(equalText([['D', 'E', 'C'], ['B', 'C', 'E']], matrix([['F', 'B', 'C'], ['A', 'D', 'C']])), matrix([[false, false, true], [false, false, false]]))
    })
  })

  describe('DenseMatrix', function () {
    it('should compare dense matrix - scalar', function () {
      assert.deepStrictEqual(equalText('B', matrix(['A', 'B', 'C'])), matrix([false, true, false]))
      assert.deepStrictEqual(equalText(matrix(['A', 'B', 'C']), 'B'), matrix([false, true, false]))
    })

    it('should compare dense matrix - array', function () {
      assert.deepStrictEqual(equalText(matrix([['D', 'E', 'C'], ['B', 'C', 'E']]), [['F', 'B', 'C'], ['A', 'D', 'C']]), matrix([[false, false, true], [false, false, false]]))
    })

    it('should compare dense matrix - dense matrix', function () {
      assert.deepStrictEqual(equalText(matrix([['D', 'E', 'C'], ['B', 'C', 'E']]), matrix([['F', 'B', 'C'], ['A', 'D', 'C']])), matrix([[false, false, true], [false, false, false]]))
    })
  })

  it('should throw an error in case of invalid type of arguments', function () {
    assert.throws(function () { equalText(1, 2) }, /TypeError: Unexpected type of argument in function compareText/)
    assert.throws(function () { equalText('A', sparse([['A', 'B'], ['C', 'D']])) }, /Cannot convert "A" to a number/)
    assert.throws(function () { equalText(bignumber(1), '2') }, /TypeError: Unexpected type of argument in function compareText/)
    assert.throws(function () { equalText('2', bignumber(1)) }, /TypeError: Unexpected type of argument in function compareText/)
  })

  it('should throw an error in case of invalid number of arguments', function () {
    assert.throws(function () { equalText(1) }, /TypeError: Too few arguments/)
    assert.throws(function () { equalText(1, 2, 3) }, /TypeError: Too many arguments/)
  })

  it('should LaTeX compare', function () {
    const expression = math.parse('equalText(1,2)')
    assert.strictEqual(expression.toTex(), '\\mathrm{equalText}\\left(1,2\\right)')
  })
})
