import * as Matrix from './matrix'

describe 'Matrix', ->

  it 'can inspect size', ->

    matrix = [[0, 0], [0, 0], [0, 0], [0, 0]]

    expect(Matrix.size matrix).toBe 8
    expect(Matrix.sizeVector matrix).toEqual [2, 4]

  it 'can test equality', ->

    l = [[0, 0], [0, 0], [0, 0], [0, 0]]
    r = [[0, 0], [0, 0], [0, 0], [0, 0]]

    expect(Matrix.equals l, r).toBe true

  it 'can make deep copies', ->

    matrix = [[1], [2], [3]]
    matrix2 = Matrix.copy matrix

    expect(matrix).toEqual matrix2

    matrix[0][0] = 4

    expect(matrix).not.toEqual matrix2