import { indicesInTable, indicesOf, initializePointerTable, initializeTable, lastColumnOf, lastRowOf } from "../src/Table"
import { TripleTable } from "../src/types"

describe('initializeTable', function() {
    it('creates a table filled with a given value', function() {
        let table: number[][] = initializeTable(10, 10, 1)
        expect(table.length).toEqual(10)
        expect(table[2][3]).toEqual(1)
    })
})

describe('indicesOf', function() {
    it('finds the indices of a given search value', function () {
        let arr = [0, 4, 8, 4, 0]
        let indices = indicesOf(arr, 4)
        expect(indices).toEqual([1, 3])
    })
})

describe('lastColumn', function () {
    it ('returns the last column of a table', function () {
        let table = [[0, 0, 1],
                     [0, 0, 2],
                     [0, 0, 3]]
        expect(lastColumnOf(table)).toEqual([1, 2, 3])
    })
})

describe('lastRow', function () {
    it ('returns the last row of a table', function () {
        let table = [[0, 0, 0],
                     [0, 0, 0],
                     [1, 2, 3]]
        expect(lastRowOf(table)).toEqual([1, 2, 3])
    })
})

describe('indicesInTable', function () {
    it ('finds the positions of a given value in a table', function () {
        let table = [[0, 0, 0],
                     [0, 2, 0],
                     [0, 1, 2]]
        expect(indicesInTable(table, 2)).toEqual([[1, 1], [2, 2]])
    })
})

describe('initializePointerTable', function () {
    it ('initializes a pointer table', function() {
        let table: TripleTable = initializePointerTable(10, 10)
        expect(table[3][0]).toEqual([0, 0, 1])
        expect(table[0][3]).toEqual([1, 0, 0])
        expect(table[0][0]).toEqual([0, 0, 0])
    })
})