You are an expert in writing code in many different languages. Your goal is to perform code completion for the following code, keeping in mind the rest of the code and the file meta data.
    Metadata details:
    filename: TestImdecode.m
    path of file: ./repos/mexopencv/test/unit_tests
    
    the code of the file until where you have to start completion: classdef TestImdecode
    %TestImdecode

    properties (Constant)
        filename = fullfile(mexopencv.root(),'test','RubberWhale1.png');
    end

    methods (Static)
        function test_decode
            buf = TestImdecode.readBytes(TestIm
    
function test_decode
            buf = TestImdecode.readBytes(TestImdecode.filename);
            im = cv.imdecode(buf);
            validateattributes(im, {'uint8'}, ...
                {'nonempty', 'ndims',3, 'size',[NaN NaN 3]});
        end

        function test_decode_unchanged
            buf = TestImdecode.readBytes(TestImdecode.filename);

            im = cv.imdecode(buf, 'Unchanged',true);
            validateattributes(im, {'uint8'}, ...
                {'nonempty', 'ndims',3, 'size',[NaN NaN 3]});

            im = cv.imdecode(buf, 'Flags',-1);
            validateattributes(im, {'uint8'}, ...
                {'nonempty', 'ndims',3, 'size',[NaN NaN 3]});
        end

        function test_decode_color
            buf = TestImdecode.readBytes(TestImdecode.filename);

            im = cv.imdecode(buf, 'Color',true);
            validateattributes(im, {'uint8'}, ...
                {'nonempty', 'ndims',3, 'size',[NaN NaN 3]});

            im = cv.imdecode(buf, 'Flags',1);
            validateattributes(im, {'uint8'}, ...
                {'nonempty', 'ndims',3, 'size',[NaN NaN 3]});
        end

        function test_decode_grayscale
            buf = TestImdecode.readBytes(TestImdecode.filename);

            im = cv.imdecode(buf, 'Grayscale',true);
            validateattributes(im, {'uint8'}, {'nonempty', 'ndims',2});

            im = cv.imdecode(buf, 'Flags',0);
            validateattributes(im, {'uint8'}, {'nonempty', 'ndims',2});
        end

        function test_flip_channels
            buf = TestImdecode.readBytes(TestImdecode.filename);
            im1 = cv.imdecode(buf, 'Color',true, 'FlipChannels',true);
            im2 = cv.imdecode(buf, 'Color',true, 'FlipChannels',false);
            assert(isequal(im1, flipdim(im2,3)));
        end

        function test_compare
            % decode bytes
            buf = TestImdecode.readBytes(TestImdecode.filename);
            im1 = cv.imdecode(buf, 'Flags',-1);

            % read original image
            im2 = imread(TestImdecode.filename);

            % compare
            % TODO: not guaranteed to pass for JPEG images!!
            assert(isequal(im1,im2), 'Images are not equal');
        end