<?php

declare(strict_types=1);

return [
    'select last column' => [
        [
            ['c'],
            ['f'],
            ['i'],
            ['l'],
            ['o'],
            ['r'],
            ['u'],
            ['x'],
            ['#'],
        ],
        '=CHOOSECOLS(B3:D11, -1)',
    ],
    'select 1 column' => [
        [
            ['b'],
            ['e'],
            ['h'],
            ['k'],
            ['n'],
            ['q'],
            ['t'],
            ['w'],
            ['z'],
        ],
        '=CHOOSECOLS(B3:D11, 2)',
    ],
    'fractional column' => [
        [
            ['b'],
            ['e'],
            ['h'],
            ['k'],
            ['n'],
            ['q'],
            ['t'],
            ['w'],
            ['z'],
        ],
        '=CHOOSECOLS(B3:D11, 2.8)',
    ],
    'numeric string column' => [
        [
            ['b'],
            ['e'],
            ['h'],
            ['k'],
            ['n'],
            ['q'],
            ['t'],
            ['w'],
            ['z'],
        ],
        '=CHOOSECOLS(B3:D11, " 2.8 ")',
    ],
    'multiple columns including duplicates' => [
        [
            ['b', 'a', 'b'],
            ['e', 'd', 'e'],
            ['h', 'g', 'h'],
            ['k', 'j', 'k'],
            ['n', 'm', 'n'],
            ['q', 'p', 'q'],
            ['t', 's', 't'],
            ['w', 'v', 'w'],
            ['z', 'y', 'z'],
        ],
        '=CHOOSECOLS(B3:D11, 2, 1, 2)',
    ],
    'multiple columns mixed +/- mixed scalar/matrix' => [
        [
            ['b', 'a', 'b'],
            ['e', 'd', 'e'],
            ['h', 'g', 'h'],
            ['k', 'j', 'k'],
            ['n', 'm', 'n'],
            ['q', 'p', 'q'],
            ['t', 's', 't'],
            ['w', 'v', 'w'],
            ['z', 'y', 'z'],
        ],
        '=CHOOSECOLS(B3:D11, 2, {-3, 2})',
    ],
    'reverse Columns' => [
        [
            ['c', 'b', 'a'],
            ['f', 'e', 'd'],
            ['i', 'h', 'g'],
            ['l', 'k', 'j'],
            ['o', 'n', 'm'],
            ['r', 'q', 'p'],
            ['u', 't', 's'],
            ['x', 'w', 'v'],
            ['#', 'z', 'y'],
        ],
        '=CHOOSECOLS(B3:D11, SEQUENCE(COLUMNS(B3:D11),,COLUMNS(B3:D11),-1))',
    ],
    'inline array' => [
        [
            ['c', 'b'],
            ['f', 'e'],
            ['i', 'h'],
            ['l', 'k'],
            ['o', 'n'],
            ['r', 'q'],
            ['u', 't'],
            ['x', 'w'],
            ['#', 'z'],
        ],
        '=CHOOSECOLS(B3:D11, {3;2})',
    ],
    'inline array with negative numbers' => [
        [
            ['b', 'c'],
            ['e', 'f'],
            ['h', 'i'],
            ['k', 'l'],
            ['n', 'o'],
            ['q', 'r'],
            ['t', 'u'],
            ['w', 'x'],
            ['z', '#'],
        ],
        '=CHOOSECOLS(B3:D11, {-2;-1})',
    ],
    'defined name' => [
        [
            ['b', 'c'],
            ['e', 'f'],
            ['h', 'i'],
            ['k', 'l'],
            ['n', 'o'],
            ['q', 'r'],
            ['t', 'u'],
            ['w', 'x'],
            ['z', '#'],
        ],
        '=CHOOSECOLS(definedname, {-2;-1})',
    ],
    'only 1 argument' => [
        'exception',
        '=CHOOSECOLS(B3:D11)',
    ],
    'non-numeric column' => [
        '#VALUE!',
        '=CHOOSECOLS(B3:D11, "x")',
    ],
    'positive column too large' => [
        '#VALUE!',
        '=CHOOSECOLS(B3:D11, 4)',
    ],
    'negative column too large' => [
        '#VALUE!',
        '=CHOOSECOLS(B3:D11, 1, -4)',
    ],
    'zero column' => [
        '#VALUE!',
        '=CHOOSECOLS(B3:D11, 0)',
    ],
    'single cell' => [
        [
            ['a'],
        ],
        '=CHOOSECOLS(B3, 1)',
    ],
    'inline array rather than range' => [
        [
            [2, 1, 1],
            [4, 3, 3],
            [6, 5, 5],
        ],
        '=CHOOSECOLS({1,2;3,4;5,6}, " 2.4 ", 1, 1)',
    ],
];