function run_my_code() {
    var ea = $("#example_anchor");
    ea.html("");

    $.ajax({
        url: "/swdevel/json/",
        data: JSON.stringify({id: 1, method: "init_test", params: {}}),
        type: 'POST',
        success: function(result) {
            var data = result.result;
            console.log('data', data);

            if (typeof data !== 'array' || data.length != 1981) {
                ea.append($("<div>Error: Step 1: List is not 1981 long</div>"));
            }

            for (var i = 0, l = data.length; i < l; i++) {
                if (typeof data[i] !== 'number') {
                    ea.append($("<div>Error: Step 1: List contains non-numbers</div>"));
                    break;
                }
            }

            var prevNum = data[0];

            for (var i = 1, l = data.length; i < l; i++) {
                if (data[i] < prevNum) {
                    ea.append($("<div>Error: Step 1: List is not sorted in ascending order</div>"));
                    break;
                } else {
                    prevNum = data[i];
                }
            }

            var sum = 0;

            for (var i = 0, l = data.length; i < l; i++) {
                sum += data[i];
            }

            var average = sum/data.length;

            $.ajax({
                url: "/swdevel/json/",
                data: JSON.stringify({id: 2, method: "sequence_boundaries", params: {}}),
                type: 'POST',
                success: function(result) {
                    var sineWave = result.result;

                    if (typeof sineWave !== 'object') {
                        ea.append($("<div>Error: Step 2: It's not a dictionary</div>"));
                    }

                    if (typeof sineWave !== 'object' || typeof sineWave.amplitude !== 'number' || typeof sineWave.phase !== 'number') {
                        ea.append($("<div>Error: Step 2: Doesn't contain amplitude and phase shift</div>"));
                    }

                    if (typeof sineWave !== 'object' || sineWave.phase != 90) {
                        ea.append($("<div>Error: Step 2: Phase is not half a wavelength</div>"));
                    }

                    $.ajax({
                        url: "/swdevel/json/",
                        data: JSON.stringify({id: 3, method: "fetch_waveform", params: {
                            'frequency': average,
                            'amplitude': sineWave.amplitude,
                            'phase': sineWave.phase
                        }}),
                        type: 'POST',
                        success: function(result) {

                            var array = result.result;

                            if (typeof array !== 'array') {
                                ea.append($("<div>Error: Step 3: Data is not an array</div>"));
                            }

                            var max = 0;
                            for (var i = 0, l = array.length; i < l; i++) {
                                if (array[i] > max) {
                                    max = array[i];
                                }
                            }
                            if (max != sineWave.amplitude) {
                                ea.append($("<div>Error: Step 3: Sineway has incorrect amplitude</div>"));
                            }

                            if (array[0] != 0) {
                                ea.append($("<div>Error: Step 3: Sineway value at x=0 should be 0</div>"));
                            }

                            $.ajax({
                                url: "/swdevel/json/",
                                data: JSON.stringify({id: 4, method: "shift_waveform", params: {
                                    'data': array
                                }}),
                                type: 'POST',
                                success: function(result) {

                                    var shiftedWaveform = result.result;

                                    if (typeof shiftedWaveform !== 'array') {
                                        ea.append($("<div>Error: Step 4: Result is not an array</div>"));
                                    }

                                    if (shiftedWaveform.length !== array.length) {
                                        ea.append($("<div>Error: Step 4: Result is not the same waveform</div>"));
                                    }

                                    var shiftedMax = 0;
                                    for (var i = 0, l = shiftedWaveform.length; i < l; i++) {
                                        if (shiftedMax < shiftedWaveform[i]) {
                                            shiftedMax = shiftedWaveform[i];
                                        }
                                    }
                                    if (Math.round(shiftedMax*1000)/1000 != Math.round(max * 0.7 * 1000)/1000) {
                                        ea.append($("<div>Error: Step 4: Resulted waveform does not have amplitude reduced by 30%</div>"));
                                    }

                                    for (var i = 0, l = array.length; i < l; i++) {
                                        if (array[i] == 0) {
                                            if (Math.round(Math.abs(shiftedWaveform[i])*1000)/1000 != Math.round(shiftedMax*Math.sin(45)*1000)/1000) {
                                                ea.append($("<div>Error: Step 4: Resulted waveform is not have shifted by 45%</div>"));
                                            }
                                        }
                                    }
                                 },
                                error: function(result) {
                                    console.log("The ajax call failed");
                                }
                            });
                        },
                        error: function(result) {
                            console.log("The ajax call failed");
                        }
                    });
                },
                error: function(result) {
                    console.log("The ajax call failed");
                }
            });
        },
        error: function(result) {
            console.log("The ajax call failed");
        }
    });
}