Test_plotlyfig: compare boxplot traces to the figure's lines

Author: robertoffmoura

plotly/Test_plotlyfig.m

@@ -1742,26 +1742,27 @@ function testBoxPlotData(tc)
             p = plotlyfig(fig,"visible","off");
 
             if is_octave()
-                tc.verifyNumElements(p.data, 6);
-                boxData = { ...
-                    [0.6 0.6 0.6 1.4 1.4 1.4 1.4 1.4 0.6 0.6 0.6], ...
-                    [0.4147 0.4394 0.4394 0.4394 0.4394 0.4147 0.0432756925294199 -0.0896 -0.0896 0.0432756925294199 0.4147]; ...
-                    [1 1], [-0.874 -0.0896]; ...
-                    [1 1], [1.0212 0.4394]; ...
-                    [0.95 1.05], [-0.874 -0.874]; ...
-                    [0.95 1.05], [1.0212 1.0212]; ...
-                    [0.6 1.4], [0.4147 0.4147] ...
-                };
-                for i = 1:6
+                % compare against the boxplot's own line children in the
+                % order plotlyfig collects them (findobj order is reversed
+                % when the plots are collected); reading the figure keeps
+                % the test independent of the statistics package's
+                % quartile definition
+                ax = get(fig, 'currentaxes');
+                lines = findobj(ax, '-depth', 1, '-not', 'Type', 'Text', ...
+                    '-not', 'Type', 'axes');
+                lines = lines(end:-1:1);
+
+                tc.verifyNumElements(p.data, numel(lines));
+                for i = 1:numel(lines)
                     tc.verifyEqualStructs(p.data{i}, struct( ...
                         "type", 'scatter', ...
                         "xaxis", 'x1', ...
                         "yaxis", 'y1', ...
                         "visible", true, ...
                         "name", '', ...
                         "mode", 'lines', ...
-                        "x", boxData{i,1}, ...
-                        "y", boxData{i,2}, ...
+                        "x", get(lines(i), 'XData'), ...
+                        "y", get(lines(i), 'YData'), ...
                         "line", struct( ...
                             "color", PlotlyTestCase.AnyColorString(), ...
                             "width", 0.5, ...