"""
Test the easing functions by sampling the range [0, 1] uniformly in 21 points.
Then, a TypeScript script was used to sample all the original functions,
the data was collected, and is here tested against the Python implementation.
"""

import pytest

from textual._easing import EASING

POINTS = [
    0.0,
    0.05,
    0.1,
    0.15,
    0.2,
    0.25,
    0.3,
    0.35,
    0.4,
    0.45,
    0.5,
    0.55,
    0.6,
    0.65,
    0.7,
    0.75,
    0.8,
    0.85,
    0.9,
    0.95,
    1.0,
]

DATA = {
    "none": [1] * len(POINTS),
    "round": [0] * POINTS.index(0.5) + [1] * (len(POINTS) - POINTS.index(0.5)),
    "linear": POINTS[::],
    "in_sine": [
        0,
        0.003082666266872036,
        0.01231165940486223,
        0.027630079602323443,
        0.04894348370484647,
        0.07612046748871326,
        0.1089934758116321,
        0.1473598356459077,
        0.19098300562505255,
        0.23959403439996907,
        0.2928932188134524,
        0.35055195166981645,
        0.41221474770752686,
        0.4775014352840511,
        0.5460095002604531,
        0.6173165676349102,
        0.6909830056250525,
        0.7665546361440945,
        0.843565534959769,
        0.921540904272155,
        0.9999999999999999,
    ],
    "out_sine": [
        0,
        0.07845909572784494,
        0.15643446504023087,
        0.2334453638559054,
        0.3090169943749474,
        0.3826834323650898,
        0.45399049973954675,
        0.5224985647159488,
        0.5877852522924731,
        0.6494480483301837,
        0.7071067811865475,
        0.760405965600031,
        0.8090169943749475,
        0.8526401643540922,
        0.8910065241883678,
        0.9238795325112867,
        0.9510565162951535,
        0.9723699203976766,
        0.9876883405951378,
        0.996917333733128,
        1,
    ],
    "in_out_sine": [
        0,
        0.006155829702431115,
        0.024471741852423234,
        0.05449673790581605,
        0.09549150281252627,
        0.1464466094067262,
        0.20610737385376343,
        0.27300475013022657,
        0.3454915028125263,
        0.4217827674798845,
        0.49999999999999994,
        0.5782172325201155,
        0.6545084971874737,
        0.7269952498697734,
        0.7938926261462365,
        0.8535533905932737,
        0.9045084971874737,
        0.9455032620941839,
        0.9755282581475768,
        0.9938441702975689,
        1,
    ],
    "in_quad": [
        0,
        0.0025000000000000005,
        0.010000000000000002,
        0.0225,
        0.04000000000000001,
        0.0625,
        0.09,
        0.12249999999999998,
        0.16000000000000003,
        0.2025,
        0.25,
        0.30250000000000005,
        0.36,
        0.42250000000000004,
        0.48999999999999994,
        0.5625,
        0.6400000000000001,
        0.7224999999999999,
        0.81,
        0.9025,
        1,
    ],
    "out_quad": [
        0,
        0.09750000000000003,
        0.18999999999999995,
        0.2775000000000001,
        0.3599999999999999,
        0.4375,
        0.51,
        0.5774999999999999,
        0.64,
        0.6975,
        0.75,
        0.7975000000000001,
        0.84,
        0.8775000000000001,
        0.9099999999999999,
        0.9375,
        0.96,
        0.9775,
        0.99,
        0.9974999999999999,
        1,
    ],
    "in_out_quad": [
        0,
        0.005000000000000001,
        0.020000000000000004,
        0.045,
        0.08000000000000002,
        0.125,
        0.18,
        0.24499999999999997,
        0.32000000000000006,
        0.405,
        0.5,
        0.5950000000000001,
        0.6799999999999999,
        0.755,
        0.82,
        0.875,
        0.92,
        0.955,
        0.98,
        0.995,
        1,
    ],
    "in_cubic": [
        0,
        0.00012500000000000003,
        0.0010000000000000002,
        0.003375,
        0.008000000000000002,
        0.015625,
        0.027,
        0.04287499999999999,
        0.06400000000000002,
        0.09112500000000001,
        0.125,
        0.16637500000000005,
        0.216,
        0.27462500000000006,
        0.3429999999999999,
        0.421875,
        0.5120000000000001,
        0.6141249999999999,
        0.7290000000000001,
        0.8573749999999999,
        1,
    ],
    "out_cubic": [
        0,
        0.1426250000000001,
        0.2709999999999999,
        0.3858750000000001,
        0.4879999999999999,
        0.578125,
        0.657,
        0.7253749999999999,
        0.784,
        0.833625,
        0.875,
        0.908875,
        0.9359999999999999,
        0.957125,
        0.973,
        0.984375,
        0.992,
        0.996625,
        0.999,
        0.999875,
        1,
    ],
    "in_out_cubic": [
        0,
        0.0005000000000000001,
        0.004000000000000001,
        0.0135,
        0.03200000000000001,
        0.0625,
        0.108,
        0.17149999999999996,
        0.25600000000000006,
        0.36450000000000005,
        0.5,
        0.6355000000000002,
        0.744,
        0.8285,
        0.8919999999999999,
        0.9375,
        0.968,
        0.9865,
        0.996,
        0.9994999999999999,
        1,
    ],
    "in_quart": [
        0,
        0.000006250000000000002,
        0.00010000000000000003,
        0.00050625,
        0.0016000000000000005,
        0.00390625,
        0.0081,
        0.015006249999999995,
        0.025600000000000008,
        0.04100625000000001,
        0.0625,
        0.09150625000000004,
        0.1296,
        0.17850625000000006,
        0.24009999999999992,
        0.31640625,
        0.40960000000000013,
        0.5220062499999999,
        0.6561000000000001,
        0.8145062499999999,
        1,
    ],
    "out_quart": [
        0,
        0.18549375,
        0.3438999999999999,
        0.4779937500000001,
        0.5903999999999998,
        0.68359375,
        0.7599,
        0.8214937499999999,
        0.8704000000000001,
        0.90849375,
        0.9375,
        0.95899375,
        0.9743999999999999,
        0.98499375,
        0.9919,
        0.99609375,
        0.9984,
        0.99949375,
        0.9999,
        0.99999375,
        1,
    ],
    "in_out_quart": [
        0,
        0.000050000000000000016,
        0.0008000000000000003,
        0.00405,
        0.012800000000000004,
        0.03125,
        0.0648,
        0.12004999999999996,
        0.20480000000000007,
        0.32805000000000006,
        0.5,
        0.6719500000000002,
        0.7951999999999999,
        0.87995,
        0.9351999999999999,
        0.96875,
        0.9872,
        0.99595,
        0.9992,
        0.99995,
        1,
    ],
    "in_quint": [
        0,
        3.1250000000000013e-7,
        0.000010000000000000004,
        0.0000759375,
        0.00032000000000000013,
        0.0009765625,
        0.00243,
        0.005252187499999998,
        0.010240000000000004,
        0.018452812500000006,
        0.03125,
        0.050328437500000024,
        0.07776,
        0.11602906250000004,
        0.16806999999999994,
        0.2373046875,
        0.32768000000000014,
        0.4437053124999999,
        0.5904900000000002,
        0.7737809374999999,
        1,
    ],
    "out_quint": [
        0,
        0.2262190625,
        0.4095099999999998,
        0.5562946875000001,
        0.6723199999999998,
        0.7626953125,
        0.8319300000000001,
        0.8839709375,
        0.92224,
        0.9496715625,
        0.96875,
        0.9815471875,
        0.98976,
        0.9947478125,
        0.99757,
        0.9990234375,
        0.99968,
        0.9999240625,
        0.99999,
        0.9999996875,
        1,
    ],
    "in_out_quint": [
        0,
        0.000005000000000000002,
        0.00016000000000000007,
        0.001215,
        0.005120000000000002,
        0.015625,
        0.03888,
        0.08403499999999997,
        0.16384000000000007,
        0.2952450000000001,
        0.5,
        0.7047550000000002,
        0.8361599999999999,
        0.915965,
        0.96112,
        0.984375,
        0.99488,
        0.998785,
        0.99984,
        0.999995,
        1,
    ],
    "in_expo": [
        0,
        0.0013810679320049757,
        0.001953125,
        0.0027621358640099515,
        0.00390625,
        0.005524271728019903,
        0.0078125,
        0.011048543456039806,
        0.015625,
        0.02209708691207961,
        0.03125,
        0.04419417382415922,
        0.0625,
        0.08838834764831845,
        0.125,
        0.1767766952966369,
        0.25,
        0.3535533905932738,
        0.5,
        0.7071067811865476,
        1,
    ],
    "out_expo": [
        0,
        0.2928932188134524,
        0.5,
        0.6464466094067263,
        0.75,
        0.8232233047033631,
        0.875,
        0.9116116523516815,
        0.9375,
        0.9558058261758408,
        0.96875,
        0.9779029130879204,
        0.984375,
        0.9889514565439602,
        0.9921875,
        0.99447572827198,
        0.99609375,
        0.99723786413599,
        0.998046875,
        0.998618932067995,
        1,
    ],
    "in_out_expo": [
        0,
        0.0009765625,
        0.001953125,
        0.00390625,
        0.0078125,
        0.015625,
        0.03125,
        0.0625,
        0.125,
        0.25,
        0.5,
        0.75,
        0.875,
        0.9375,
        0.96875,
        0.984375,
        0.9921875,
        0.99609375,
        0.998046875,
        0.9990234375,
        1,
    ],
    "in_circ": [
        0,
        0.0012507822280910519,
        0.005012562893380035,
        0.011314003335740508,
        0.020204102886728803,
        0.031754163448145745,
        0.04606079858305434,
        0.06325030024024025,
        0.08348486100883201,
        0.10697144502541245,
        0.1339745962155614,
        0.16483534557549673,
        0.19999999999999996,
        0.24006579232146685,
        0.285857157145715,
        0.3385621722338523,
        0.40000000000000013,
        0.473217312357363,
        0.5641101056459328,
        0.6877501000800801,
        1,
    ],
    "out_circ": [
        0,
        0.31224989991991997,
        0.4358898943540673,
        0.526782687642637,
        0.5999999999999999,
        0.6614378277661477,
        0.714142842854285,
        0.7599342076785331,
        0.8,
        0.8351646544245033,
        0.8660254037844386,
        0.8930285549745877,
        0.916515138991168,
        0.9367496997597597,
        0.9539392014169457,
        0.9682458365518543,
        0.9797958971132712,
        0.9886859966642595,
        0.99498743710662,
        0.998749217771909,
        1,
    ],
    "in_out_circ": [
        0,
        0.0025062814466900174,
        0.010102051443364402,
        0.02303039929152717,
        0.041742430504416006,
        0.0669872981077807,
        0.09999999999999998,
        0.1429285785728575,
        0.20000000000000007,
        0.2820550528229664,
        0.5,
        0.7179449471770338,
        0.7999999999999999,
        0.8570714214271424,
        0.8999999999999999,
        0.9330127018922193,
        0.958257569495584,
        0.9769696007084728,
        0.9898979485566356,
        0.9974937185533099,
        1,
    ],
    "in_back": [
        0,
        -0.003916252500000001,
        -0.014314220000000004,
        -0.029167717499999996,
        -0.046450560000000016,
        -0.06413656250000001,
        -0.08019953999999999,
        -0.09261330750000002,
        -0.09935168000000005,
        -0.09838847249999999,
        -0.08769750000000004,
        -0.06525257750000002,
        -0.029027519999999973,
        0.023003857500000002,
        0.09286773999999975,
        0.18259031249999969,
        0.29419775999999986,
        0.4297162674999999,
        0.5911720200000001,
        0.7805912024999997,
        0.9999999999999998,
    ],
    "out_back": [
        2.220446049250313e-16,
        0.21940879750000053,
        0.40882797999999987,
        0.5702837325000001,
        0.7058022400000001,
        0.8174096875000002,
        0.9071322600000001,
        0.9769961425,
        1.02902752,
        1.0652525775,
        1.0876975,
        1.0983884725,
        1.09935168,
        1.0926133075,
        1.08019954,
        1.0641365625,
        1.04645056,
        1.0291677175,
        1.01431422,
        1.0039162525,
        1,
    ],
    "in_out_back": [
        -0,
        -0.011177092750000001,
        -0.037518552000000004,
        -0.06823964924999999,
        -0.092555656,
        -0.09968184375,
        -0.07883348399999998,
        -0.019225848250000063,
        0.0899257920000001,
        0.25940616525,
        0.5,
        0.7405938347500003,
        0.9100742079999999,
        1.01922584825,
        1.078833484,
        1.09968184375,
        1.092555656,
        1.06823964925,
        1.0375185519999999,
        1.0111770927500001,
        1,
    ],
    "in_elastic": [
        0,
        0.0006905339660024924,
        0.001953125,
        0.0013810679320049725,
        -0.0019531250000000126,
        -0.005524271728019903,
        -0.0039062499999999918,
        0.00552427172801992,
        0.015625,
        0.011048543456039785,
        -0.015625000000000045,
        -0.04419417382415922,
        -0.031249999999999948,
        0.04419417382415934,
        0.125,
        0.08838834764831832,
        -0.1250000000000001,
        -0.3535533905932738,
        -0.24999999999999986,
        0.353553390593274,
        1,
    ],
    "out_elastic": [
        0,
        0.6464466094067263,
        1.25,
        1.3535533905932737,
        1.125,
        0.9116116523516816,
        0.875,
        0.9558058261758408,
        1.03125,
        1.0441941738241591,
        1.015625,
        0.9889514565439602,
        0.984375,
        0.99447572827198,
        1.00390625,
        1.00552427172802,
        1.001953125,
        0.998618932067995,
        0.998046875,
        0.9993094660339975,
        1,
    ],
    "in_out_elastic": [
        0,
        0.0009765625,
        0.000339156597005722,
        -0.0036706742999449557,
        -0.0039062499999999935,
        0.011969444423734044,
        0.023938888847468056,
        -0.03125000000000003,
        -0.11746157759823853,
        0.04341204441673268,
        0.5,
        0.9565879555832674,
        1.1174615775982386,
        1.03125,
        0.9760611111525319,
        0.988030555576266,
        1.00390625,
        1.003670674299945,
        0.9996608434029943,
        0.9990234375,
        1,
    ],
    "in_bounce": [
        0,
        0.015468750000000031,
        0.01187500000000008,
        0.05484375000000008,
        0.06000000000000005,
        0.02734375,
        0.06937499999999996,
        0.1673437499999999,
        0.22750000000000004,
        0.24984375000000003,
        0.234375,
        0.18109375000000005,
        0.09000000000000019,
        0.07359375000000024,
        0.31937499999999985,
        0.52734375,
        0.6975000000000001,
        0.82984375,
        0.9243750000000001,
        0.98109375,
        1,
    ],
    "out_bounce": [
        0,
        0.018906250000000003,
        0.07562500000000001,
        0.17015624999999998,
        0.30250000000000005,
        0.47265625,
        0.6806249999999999,
        0.9264062499999998,
        0.9099999999999998,
        0.81890625,
        0.765625,
        0.75015625,
        0.7725,
        0.8326562500000001,
        0.930625,
        0.97265625,
        0.94,
        0.9451562499999999,
        0.9881249999999999,
        0.98453125,
        1,
    ],
    "in_out_bounce": [
        0,
        0.00593750000000004,
        0.030000000000000027,
        0.03468749999999998,
        0.11375000000000002,
        0.1171875,
        0.045000000000000095,
        0.15968749999999993,
        0.34875000000000006,
        0.46218750000000003,
        0.5,
        0.5378125,
        0.6512499999999999,
        0.8403125,
        0.9550000000000001,
        0.8828125,
        0.88625,
        0.9653125,
        0.97,
        0.9940624999999998,
        1,
    ],
}


def test_coverage():
    assert set(DATA.keys()) == set(EASING.keys())


def test_easings():
    for name, values in DATA.items():
        func = EASING[name]
        for point, value in zip(POINTS, values):
            assert value == pytest.approx(func(point))