Commit df1db3a
Fuzz testing
Changed files (16)
addedbirdfont-test.shaddedbirdfont-test/TestRunner.valaaddedbirdfont-test/illustrator.svgaddedbirdfont-test/inkscape.svgmodifiedconfiguremodifieddodo.pymodifiedlibbirdfont/Argument.valamodifiedlibbirdfont/Glyph.valamodifiedlibbirdfont/ImportUtils.valamodifiedlibbirdfont/Path.valamodifiedlibbirdfont/PenTool.valamodifiedlibbirdfont/StrokeTask.valamodifiedlibbirdfont/StrokeTool.valamodifiedlibbirdfont/SvgParser.valamodifiedscripts/builder.pyaddedscripts/fuzzsvg.py
Diff
new file mode 100755@@ -0,0 +1,5 @@+#!/bin/sh+export LD_LIBRARY_PATH="./build/:./build/bin:$LD_LIBRARY_PATH"+PKG_PATH=$(dirname "$(readlink -f "$0")")+cd "${PKG_PATH}"+./build/bin/birdfont-test "$@"new file mode 100644@@ -0,0 +1,134 @@+using BirdFont;++namespace BirdFont {++public class TestRunner : NativeWindow, GLib.Object {+ public static void fuzz_test (string[] arg) {+ if (arg.length != 3) {+ print ("Usage: " + arg[0] + " TEST FILE\n");+ print ("TEST parameter can be BF or SVG\n");+ Process.exit (0);+ }+ + string type = arg[1];+ string file = arg[2];+ + if (type == "SVG") {+ File f = File.new_for_path (file);+ Font font = new Font ();+ import_svg_file (font, f);+ } else if (type == "BF") {+ Font font = new Font ();+ font.set_font_file (file);+ font.load ();+ }+ + Process.exit (0);+ }+ + public void file_chooser (string title, FileChooser file_chooser_callback, uint flags) {+ }+ + public void update_window_size () {+ }+ + public string get_clipboard_data (){+ return "";+ }++ public void set_clipboard (string data) {+ }+ + public void set_inkscape_clipboard (string data) {+ }++ public void set_scrollbar_size (double size) {+ }+ + public void set_scrollbar_position (double position) {+ }+ + public void font_loaded () {+ }++ public void quit () {+ Process.exit (0);+ }++ public bool convert_to_png (string from, string to) {+ return false;+ }+ + public void export_font () {+ }++ public void load () {+ }+ + public void save () {+ }+ + public void load_background_image () {+ }++ public void run_background_thread (Task t) {+ unowned Thread<void*> bg;+ + MenuTab.start_background_thread ();+ + try {+ bg = Thread.create<void*> (t.perform_task, true);+ } catch (GLib.Error e) {+ warning (e.message);+ }+ }++ public void run_non_blocking_background_thread (Task t) {+ unowned Thread<void*> bg;+ + try {+ bg = Thread.create<void*> (t.perform_task, true);+ } catch (GLib.Error e) {+ warning (e.message);+ }+ }+ + public void set_clipboard_text (string text) {+ }+ + public string get_clipboard_text () {+ return "";+ }+ + public bool can_export () {+ return true;+ }++ public void set_cursor (int visible) {+ }++ public double get_screen_scale () {+ return 1;+ }+}++}++public static int main (string[] arg) {+ TestRunner runner;+ MainWindow window;+ BirdFont.BirdFont birdfont;+ string[] birdfont_args = new string[1];++ birdfont_args[0] = arg[0];+ birdfont = new BirdFont.BirdFont ();+ birdfont.init (birdfont_args, null, "birdfont");+ + window = new MainWindow ();+ runner = new TestRunner (); ++ window.set_native (runner);+ TestRunner.fuzz_test (arg);+ + return 0;+}new file mode 100644@@ -0,0 +1,77 @@+<!-- Generator: Adobe Illustrator 19.1.0, SVG Export Plug-In -->+<svg version="1.1"+ xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink" xmlns:a="http://ns.adobe.com/AdobeSVGViewerExtensions/3.0/"+ x="0px" y="0px" width="41.7px" height="41.7px" viewBox="0 0 41.7 41.7" overflow="scroll" enable-background="new 0 0 41.7 41.7"+ xml:space="preserve">+<defs>+</defs>+<circle cx="20.8" cy="20.8" r="20.8"/>++ <g+ inkscape:label="Layer 1"+ inkscape:groupmode="layer"+ id="layer1">++ <polygon fill="red" stroke="blue" stroke-width="2" + points="350,75 379,161 469,161 397,215+ 423,301 350,250 277,301 303,215+ 231,161 321,161" />++ <polygon fill="lime" stroke="blue" stroke-width="1" + points="850,75 958,137.5 958,262.5+ 850,325 742,262.6 742,137.5" />++ <polyline fill="none" stroke="blue" stroke-width="3" + points="50,375+ 150,375 150,325 250,325 250,375+ 350,375 350,250 450,250 450,375+ 550,375 550,175 650,175 650,375+ 750,375 750,100 850,100 850,375+ 950,375 950,25 1050,25 1050,375+ 1150,375" />+ + <ellipse+ style="fill:none;fill-opacity:1;stroke:#000000;stroke-width:10.5;stroke-miterlimit:4;stroke-dasharray:none;stroke-opacity:1"+ id="path4136"+ cx="171.42857"+ cy="368.07651"+ rx="82.85714"+ ry="18.571428" />+ <ellipse+ style="fill:none;fill-opacity:1;stroke:#000000;stroke-width:10.5;stroke-miterlimit:4;stroke-dasharray:none;stroke-opacity:1"+ id="path4138"+ cx="170"+ cy="249.50505"+ rx="24.285715"+ ry="25.714285" />+ <circle+ style="fill:none;fill-opacity:1;stroke:#000000;stroke-width:1.5;stroke-miterlimit:4;stroke-dasharray:none;stroke-opacity:1"+ id="path4140"+ cx="177.14285"+ cy="472.36221"+ r="28.571428" />+ <path+ style="fill:none;fill-rule:evenodd;stroke:#000000;stroke-width:20.4;stroke-linecap:butt;stroke-linejoin:miter;stroke-opacity:1;stroke-miterlimit:4;stroke-dasharray:none"+ d="M -80,209.50506 -94.285714,515.21935"+ id="path4224"+ inkscape:connector-curvature="0" />+ <path+ style="fill:none;fill-rule:evenodd;stroke:#000000;stroke-width:20.4;stroke-linecap:butt;stroke-linejoin:miter;stroke-opacity:1;stroke-miterlimit:4;stroke-dasharray:none"+ d="m -352.54324,209.89499 -22.22335,262.63966"+ id="path4235"+ inkscape:connector-curvature="0" />+ <path+ style="fill:none;fill-rule:evenodd;stroke:#000000;stroke-width:20.4;stroke-linecap:butt;stroke-linejoin:miter;stroke-opacity:1;stroke-miterlimit:4;stroke-dasharray:none"+ d="m -345.47217,495.76816 78.7919,-2.02031 16.16244,-191.92898 80.8122,8.08122 10.10153,-103.03556"+ id="path4237"+ inkscape:connector-curvature="0" />+ <path+ style="fill:none;fill-rule:evenodd;stroke:#000000;stroke-width:46.79999924;stroke-linecap:butt;stroke-linejoin:miter;stroke-miterlimit:4;stroke-dasharray:none;stroke-opacity:1"+ d="m -337.14286,592.3622 191.42857,20 62.857151,157.14286 -325.714291,-14.28572 z"+ id="path4239"+ inkscape:connector-curvature="0" />+ </g>++</svg>++new file mode 100644@@ -0,0 +1,108 @@+<?xml version="1.0" encoding="UTF-8" standalone="no"?>+<!-- Created with Inkscape (http://www.inkscape.org/) -->++<svg+ xmlns:dc="http://purl.org/dc/elements/1.1/"+ xmlns:cc="http://creativecommons.org/ns#"+ xmlns:rdf="http://www.w3.org/1999/02/22-rdf-syntax-ns#"+ xmlns:svg="http://www.w3.org/2000/svg"+ xmlns="http://www.w3.org/2000/svg"+ xmlns:sodipodi="http://sodipodi.sourceforge.net/DTD/sodipodi-0.dtd"+ xmlns:inkscape="http://www.inkscape.org/namespaces/inkscape"+ width="210mm"+ height="297mm"+ viewBox="0 0 744.09448819 1052.3622047"+ id="svg2"+ version="1.1"+ inkscape:version="0.91 r13725"+ sodipodi:docname="drawing.svg">+ <defs+ id="defs4" />+ <sodipodi:namedview+ id="base"+ pagecolor="#ffffff"+ bordercolor="#666666"+ borderopacity="1.0"+ inkscape:pageopacity="0.0"+ inkscape:pageshadow="2"+ inkscape:zoom="0.49497475"+ inkscape:cx="205.26829"+ inkscape:cy="569.09246"+ inkscape:document-units="px"+ inkscape:current-layer="layer1"+ showgrid="false"+ inkscape:window-width="1213"+ inkscape:window-height="734"+ inkscape:window-x="67"+ inkscape:window-y="27"+ inkscape:window-maximized="1" />+ <metadata+ id="metadata7">+ <rdf:RDF>+ <cc:Work+ rdf:about="">+ <dc:format>image/svg+xml</dc:format>+ <dc:type+ rdf:resource="http://purl.org/dc/dcmitype/StillImage" />+ <dc:title />+ </cc:Work>+ </rdf:RDF>+ </metadata>++ <g transform="translate(300 200)">+ <ellipse rx="250" ry="100" fill="red" />+ </g>++ <ellipse transform="translate(900 200) rotate(-30)" + rx="250" ry="100"+ fill="none" stroke="blue" stroke-width="20" />++ <circle cx="600" cy="200" r="100"+ fill="red" stroke="blue" stroke-width="10" />++ <polygon fill="red" stroke="blue" stroke-width="2" + points="350,75 379,161 469,161 397,215+ 423,301 350,250 277,301 303,215+ 231,161 321,161" />++ <polygon fill="lime" stroke="blue" stroke-width="1" + points="850,75 958,137.5 958,262.5+ 850,325 742,262.6 742,137.5" />++ <polyline fill="none" stroke="blue" stroke-width="3" + points="50,375+ 150,375 150,325 250,325 250,375+ 350,375 350,250 450,250 450,375+ 550,375 550,175 650,175 650,375+ 750,375 750,100 850,100 850,375+ 950,375 950,25 1050,25 1050,375+ 1150,375" />++ <g+ inkscape:label="Layer 1"+ inkscape:groupmode="layer"+ id="layer1">+ <path+ id="path3336"+ d="m 530.21436,96.442957 c 0.22955,-2.49294 0.22072,-4.99913 0.23615,-7.50037 0.0759,-3.49913 0.31114,-7.00494 0.69108,-10.48499 0.19569,-2.73094 1.18973,-5.2346 2.38578,-7.66023 1.34792,-2.3572 3.1598,-4.42284 4.87878,-6.51609 4.81231,-5.56814 11.71957,-8.69924 18.21635,-11.93448 1.35154,-0.77198 2.8578,-1.08515 4.31892,-1.54228 1.38128,-0.43215 2.69952,-0.98075 4.09797,-1.37133 3.51161,-0.70063 7.07652,-1.08281 10.64527,-1.36103 3.17741,-0.27503 6.36338,-0.37859 9.55067,-0.43948 33.21929,1.16497 38.71465,48.60176 37.39069,72.693173 -0.13208,3.02811 -0.43859,6.03452 -0.76695,9.04605 -0.38008,3.09515 -0.82911,6.17888 -1.10014,9.28677 -0.21607,2.34566 -0.22316,4.70361 -0.27745,7.05685 -0.73383,8.30678 -1.87854,16.73092 0.0141,24.61604 6.3008,10.40178 13.98933,18.83499 23.79271,23.9935 2.01853,0.89311 3.93853,1.99996 6.01798,2.74894 1.56008,0.54266 2.97671,1.35695 4.4368,2.11118 l -10.54961,6.91182 0,0 c -1.41603,-0.75423 -2.86204,-1.42739 -4.36161,-2.0018 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0.0141,2.42092 -9.1e-4,4.84798 0.23615,7.25973 l -11.48213,5.85046 z"+ inkscape:connector-curvature="0"+ sodipodi:nodetypes="ccccccscccccccccccccccccccccccccccssccccccc" />+ <path+ id="path3338"+ d="m 590.62407,128.42627 c -2.87235,-0.55223 -5.75325,-0.23469 -8.63201,0.0356 -3.3226,0.34662 -6.64475,0.67807 -9.962,1.0819 -55.02,9.80749 -43.95719,56.49419 -5.57685,65.93053 2.28604,0.78259 4.3684,1.95945 6.71033,2.58207 50.40294,-4.86553 -0.3861,2.98016 47.21599,-15.86941 l 0,0 c -1.61624,1.08719 -3.00508,2.43643 -4.56508,3.60366 -15.13345,6.20768 -12.48911,15.00919 -46.32017,19.61022 -2.22912,0.16359 -4.51176,0.42763 -6.68128,-0.27092 -2.31813,-0.75589 -4.45734,-1.91593 -6.76549,-2.70385 -2.33965,-0.95913 -4.74318,-1.77659 -6.98725,-2.95342 -47.68005,-22.56126 -22.46711,-69.50933 21.04915,-75.64057 3.85796,-0.76447 7.72173,-1.22449 11.64271,-1.53847 11.77804,-2.16543 23.1665,-0.66046 34.49525,0.14803 2.06008,0.14905 4.10767,0.50696 6.16658,0.57015 -9.97576,9.21189 -19.8907,7.31984 -31.78988,5.41459 z"+ inkscape:connector-curvature="0"+ sodipodi:nodetypes="ccccccccccccccccc" />+ <rect+ style="fill:none;fill-opacity:1;stroke:#000000;stroke-width:10.5;stroke-miterlimit:4;stroke-dasharray:none;stroke-opacity:1"+ id="rect4135"+ width="120"+ height="120"+ x="535.12256"+ y="298.07648" />+ <path+ style="fill:none;fill-rule:evenodd;stroke:#000000;stroke-width:14.50000038;stroke-linecap:butt;stroke-linejoin:miter;stroke-opacity:1;stroke-miterlimit:4;stroke-dasharray:none"+ d="m 527.29963,490.71739 131.31983,0"+ id="path4137"+ inkscape:connector-curvature="0" />+ </g>+</svg>@@ -15,7 +15,8 @@ TARGETS = ['libbirdfont', 'birdfont', 'birdfont-autotrace', 'birdfont-export',- 'birdfont-import']+ 'birdfont-import',+ 'birdfont-test'] VERSION = version.VERSION @@ -35,7 +35,8 @@ DOIT_CONFIG = { 'birdfont', 'birdfont-autotrace', 'birdfont-export',- 'birdfont-import'+ 'birdfont-import',+ 'birdfont-test' ], } @@ -424,3 +425,68 @@ def task_build (): return { 'actions': ['echo "Build"'], }++def make_birdfont_test(target_binary, deps):+ valac_command = config.VALAC + """\+ -C \+ --vapidir=./ \+ --basedir build/birdfont-test/ \+ """ + config.NON_NULL + """ \+ """ + config.VALACFLAGS.get("birdfont-test", "") + """ \+ --enable-experimental \+ birdfont-test/*.vala \+ --vapidir=./ \+ --pkg """ + config.GEE + """ \+ --pkg gio-2.0 \+ --pkg cairo \+ --pkg libsoup-2.4 \+ --pkg gdk-pixbuf-2.0 \+ --pkg webkitgtk-3.0 \+ --pkg libnotify \+ --pkg xmlbird \+ --pkg libbirdfont+ """++ cc_command = config.CC + " " + config.CFLAGS.get("birdfont-test", "") + """ \+ -c C_SOURCE \+ -D 'GETTEXT_PACKAGE="birdfont"' \+ -I./build/libbirdfont \+ $(pkg-config --cflags sqlite3) \+ $(pkg-config --cflags """ + config.GEE + """) \+ $(pkg-config --cflags gio-2.0) \+ $(pkg-config --cflags cairo) \+ $(pkg-config --cflags glib-2.0) \+ $(pkg-config --cflags gdk-pixbuf-2.0) \+ $(pkg-config --cflags webkitgtk-3.0) \+ $(pkg-config --cflags libnotify) \+ -o OBJECT_FILE"""+ + linker_command = config.CC + " " + config.LDFLAGS.get("birdfont-test", "") + """ \+ build/birdfont-test/*.o \+ -L./build/bin -lbirdfont \+ $(pkg-config --libs sqlite3) \+ $(pkg-config --libs """ + config.GEE + """) \+ $(pkg-config --libs gio-2.0) \+ $(pkg-config --libs cairo) \+ $(pkg-config --libs glib-2.0) \+ $(pkg-config --libs gdk-pixbuf-2.0) \+ $(pkg-config --libs webkitgtk-3.0) \+ $(pkg-config --libs xmlbird) \+ $(pkg-config --libs libnotify) \+ -L./build -L./build/bin -l birdgems\+ -o build/bin/""" + target_binary++ test = Builder('birdfont-test',+ valac_command, + cc_command,+ linker_command,+ target_binary,+ None,+ deps)+ + yield test.build()++def task_birdfont_test():+ yield make_birdfont_test('birdfont-test', ['libbirdgems.so', 'libbirdfont.so'])++@@ -79,6 +79,7 @@ public class Argument : GLib.Object { a == "--log" || a == "--windows" || a == "--parse-ucd" ||+ a == "--fuzz" || a == "--codepages") { prev = a; i++;@@ -1337,9 +1337,7 @@ public class Glyph : FontDisplay { if (p.is_editable ()) { r = true; p.set_editable (false);- }- - p.create_full_stroke (); // cache stroke+ } } open = false;@@ -93,7 +93,7 @@ public static int run_import (string[] arg) { return 0; } -static bool import_svg_file (Font font, File svg_file) {+public static bool import_svg_file (Font font, File svg_file) { string file_name = (!) svg_file.get_basename (); string glyph_name; StringBuilder n;@@ -2443,6 +2443,7 @@ public class Path : GLib.Object { return; } + print(@"Create full stroke for $(points.size) points.\n"); StrokeTask task = new StrokeTask (this); MainWindow.native_window.run_non_blocking_background_thread (task); @@ -2475,7 +2476,10 @@ public class Path : GLib.Object { } StrokeTool s = new StrokeTool ();+ Test t = new Test.time ("fast stroke"); fast_stroke = s.get_stroke_fast (this, stroke);+ t.print();+ return (!) fast_stroke; } @@ -186,7 +186,10 @@ public class PenTool : Tool { p.get_last_point ().set_reflective_handles (false); } - p.create_full_stroke (); // cache good stroke+ // cache good stroke+ if (p.full_stroke == null) {+ p.create_full_stroke ();+ } } // select or deselect points@@ -36,8 +36,12 @@ public class StrokeTask : Task { StrokeTool tool = new StrokeTool.with_task (this); w = background_path.stroke;+ + Test t = new Test.time ("full stroke"); stroke = tool.get_stroke (background_path, w);-+ t.print ();+ print(@"Cancelled: $(is_cancelled ())\n");+ IdleSource idle = new IdleSource (); idle.set_callback (() => { if (!is_cancelled ()) {@@ -1533,6 +1533,10 @@ public class StrokeTool : GLib.Object { PathList get_parts_self (Path path, PathList? paths = null) { PathList pl; PathList r;+ + if (task.is_cancelled ()) {+ return new PathList ();+ } r = paths == null ? new PathList () : (!) paths; pl = split (path);@@ -2847,8 +2851,9 @@ public class StrokeTool : GLib.Object { side2.add_point (previous_inside); } - min_increment = 0.013;+ min_increment = 0.02; // 0.013 + Test t1 = new Test.time ("generate"); for (i = 0; i < size; i++) { p1 = path.points.get (i % path.points.size); p2 = path.points.get ((i + 1) % path.points.size);@@ -2858,9 +2863,9 @@ public class StrokeTool : GLib.Object { return new PathList (); } - tolerance = 0.01; // 0.13 / sqrt (stroke_width)+ tolerance = 0.01; step_increment = 1.05;- step_size = 0.039; // / stroke_width;+ step_size = 0.039; corner1 = new EditPoint (); @@ -2883,7 +2888,7 @@ public class StrokeTool : GLib.Object { step = step_size; keep = 0;- step_size = 0.01;+ step_size = 0.05; // 0.01 while (step < 1 - 2 * step_size) { Path.get_point_for_step (p1, p2, step, out x, out y);@@ -2913,7 +2918,7 @@ public class StrokeTool : GLib.Object { step_size *= step_increment; continue; }- + get_segment (thickness, step, step_size, p1, p2, out corner1); get_segment (-thickness, step, step_size, p1, p2, out corner1_inside); @@ -2983,7 +2988,8 @@ public class StrokeTool : GLib.Object { add_corner (side2, previous_inside, start, p2.copy (), thickness); } }- + t1.print();+ if (fast) { EditPoint s1, s2; bool open;@@ -3039,7 +3045,9 @@ public class StrokeTool : GLib.Object { side2.reverse (); + Test t2 = new Test.time ("merge2"); pl = merge_stroke_parts (path, side1, side2);+ t2.print(); } if (fast) {@@ -667,6 +667,7 @@ public class SvgParser { PathList npl = new PathList (); SvgStyle style = new SvgStyle (); bool hidden = false;+ EditPoint ep; x = 0; y = 0;@@ -730,10 +731,17 @@ public class SvgParser { p = new Path (); - p.add (bezier_points[0].x0, bezier_points[0].y0);- p.add (bezier_points[1].x0, bezier_points[1].y0);- p.add (bezier_points[2].x0, bezier_points[2].y0);- p.add (bezier_points[3].x0, bezier_points[3].y0);+ ep = p.add (bezier_points[0].x0, bezier_points[0].y0);+ ep.set_point_type (PointType.CUBIC);+ + ep = p.add (bezier_points[1].x0, bezier_points[1].y0);+ ep.set_point_type (PointType.CUBIC);+ + ep = p.add (bezier_points[2].x0, bezier_points[2].y0);+ ep.set_point_type (PointType.CUBIC);+ + ep = p.add (bezier_points[3].x0, bezier_points[3].y0);+ ep.set_point_type (PointType.CUBIC); p.close (); p.create_list ();@@ -1570,6 +1578,7 @@ public class SvgParser { if (format == SvgFormat.ILLUSTRATOR) { path_list = create_paths_illustrator (bezier_points, bi); } else {+ print(d + "\n\n"); // FIXME: DELETE path_list = create_paths_inkscape (bezier_points, bi); } @@ -1619,6 +1628,13 @@ public class SvgParser { return_if_fail (b.length != 0); return_if_fail (b[0].type != 'z'); return_if_fail (num_b < b.length);++ if (num_b == 2) {+ left_x = b[0].x0 + (b[1].x0 - b[0].x0) / 3.0;+ left_y = b[0].y0 + (b[1].y0 - b[0].y0) / 3.0;+ last_type = PointType.LINE_CUBIC;+ return;+ } for (int i = start_index; i < num_b; i++) { switch (b[i].type) {@@ -1634,6 +1650,9 @@ public class SvgParser { } if (found || i + 1 == num_b) {+ + return_if_fail (i >= 1);+ if (b[i - 1].type == 'Q') { return_if_fail (i >= 1); left_x = b[i - 1].x0;@@ -1649,7 +1668,7 @@ public class SvgParser { left_x = b[i - 1].x1; left_y = b[i - 1].y1; last_type = PointType.CUBIC;- }else if (b[i - 1].type == 'L' || last.type == 'M') {+ } else if (b[i - 1].type == 'L' || last.type == 'M') { return_if_fail (i >= 2); // FIXME: -2 can be C or L left_x = b[i - 2].x0 + (b[i - 1].x0 - b[i - 2].x0) / 3.0; left_y = b[i - 2].y0 + (b[i - 1].y0 - b[i - 2].y0) / 3.0;@@ -105,7 +105,7 @@ class Builder(object): object_path = path.join(build_directory, object_file) command = command.replace('OBJECT_FILE', object_path) yield {- 'basename': 'compile ' + path.basename(csource),+ 'basename': 'compile ' + csource, 'file_dep': [build_file, csource] + bindep + copied_cheader, 'actions': [command], 'targets': [path.join(build_directory, object_file)],new file mode 100755@@ -0,0 +1,34 @@+#!/usr/bin/python3++import subprocess+from os import path++from run import run++def fuzz_svg_import():+ fuzz_svg ('birdfont-test/inkscape.svg')+ fuzz_svg ('birdfont-test/illustrator.svg')++def fuzz_svg (file):+ run ("mkdir -p build/fuzz")+ run ("mkdir -p build/fuzz/bugs")+ run ("radamsa " + file + " > build/fuzz/a.svg")++ cmd = "./birdfont-test.sh SVG build/fuzz/a.svg"+ print('Running: ' + cmd)+ process = subprocess.Popen (cmd, shell=True)+ process.communicate()[0]+ if not process.returncode == 0:+ print("Error: " + cmd)+ print("A bug was found.")+ + i = 0+ while path.isfile ('build/bugs/a_' + str(i) + '.svg'):+ i = i + 1+ + run ('mv build/fuzz/a.svg attic/fuzz/bugs/a_' + str(i) + '.svg')++ run ("rm -f build/fuzz/a.svg")++while True:+ fuzz_svg_import ()