function tests = CurvilinearTest()
    tests = functiontests(localfunctions);
end

function testMappingInputGridFunction(testCase)
    in = {
        {{1:10}, @(x) exp(x)},
        {{1:10,1:6}, @(x,y) [exp(x+y); exp(x-y)]},
        {{1:10,1:5,1:7}, @(x,y,z)[exp(x+y+z); exp(x-y-z); 2+x+y-z]},
    };

    out = {
        [10, 1];
        [10*6, 2];
        [10*5*7, 3];
    };


    % How to test this? Just make sure it runs without errors.

    for i = 1:length(in)
        g = grid.Curvilinear(in{i}{2},in{i}{1}{:});
        testCase.verifyEqual(size(g.coords),out{i});
    end
end

function testMappingInputComponentMatrix(testCase)
    in = {
        {{1:3}, [1 2 3]'},
        {{1:2, 1:3}, [1 2 3 4 5 6; 7 8 9 10 11 12]'},
    };

    for i = 1:length(in)
        g = grid.Curvilinear(in{i}{2},in{i}{1}{:});
        testCase.verifyEqual(g.coords,in{i}{2});
    end
end

function testMappingInputCellOfMatrix(testCase)

    in = {
        {{1:3}, {[1 2 3]'}},
        {{1:2, 1:3}, {[1 2 3; 4 5 6], [7 8 9; 10 11 12]}},
    };

    out = {
        [1 2 3]',
        [1 2 3 4 5 6; 7 8 9 10 11 12]',
    };

    for i = 1:length(in)
        g = grid.Curvilinear(in{i}{2},in{i}{1}{:});
        testCase.verifyEqual(g.coords,out{i});
    end
end

function testMappingInputCellOfVectors(testCase)
    in = {
        {{1:3}, {[1 2 3]'}},
        {{1:2, 1:3}, {[1 2 3 4 5 6]', [7 8 9 10 11 12]'}},
    };

    out = {
        [1 2 3]',
        [1 2 3 4 5 6; 7 8 9 10 11 12]',
    };
end

function testMappingInputError(testCase)
    testCase.assumeFail();
end