1 files changed, 78 insertions, 0 deletions
diff --git a/Tests/pens/quartzPen_test.py b/Tests/pens/quartzPen_test.py
new file mode 100644
index 00000000..3a81d97f
--- /dev/null
+++ b/Tests/pens/quartzPen_test.py
@@ -0,0 +1,78 @@
+import unittest
+
+try:
+    from fontTools.pens.quartzPen import QuartzPen
+
+    from Quartz.CoreGraphics import CGPathApply
+    from Quartz.CoreGraphics import kCGPathElementMoveToPoint
+    from Quartz.CoreGraphics import kCGPathElementAddLineToPoint
+    from Quartz.CoreGraphics import kCGPathElementAddQuadCurveToPoint
+    from Quartz.CoreGraphics import kCGPathElementAddCurveToPoint
+    from Quartz.CoreGraphics import kCGPathElementCloseSubpath
+
+    PATH_ELEMENTS = {
+        # CG constant key                    desc       num_points
+        kCGPathElementMoveToPoint:         ('moveto',   1),
+        kCGPathElementAddLineToPoint:      ('lineto',   1),
+        kCGPathElementAddCurveToPoint:     ('curveto',  3),
+        kCGPathElementAddQuadCurveToPoint: ('qcurveto', 2),
+        kCGPathElementCloseSubpath:        ('close',    0),
+    }
+
+    PYOBJC_AVAILABLE = True
+except ImportError:
+    PYOBJC_AVAILABLE = False
+
+
+def draw(pen):
+    pen.moveTo((50, 0))
+    pen.lineTo((50, 500))
+    pen.lineTo((200, 500))
+    pen.curveTo((350, 500), (450, 400), (450, 250))
+    pen.curveTo((450, 100), (350, 0), (200, 0))
+    pen.closePath()
+
+
+def quartzPathApplier(elements, element):
+    num_points = 0
+    elem_type = None
+    if element.type in PATH_ELEMENTS:
+        num_points = PATH_ELEMENTS[element.type][1]
+        elem_type = PATH_ELEMENTS[element.type][0]
+    elements.append((elem_type, element.points.as_tuple(num_points)))
+
+
+def quartzPathElements(path):
+    elements = []
+    CGPathApply(path, elements, quartzPathApplier)
+    return elements
+
+
+def quartzPathToString(path):
+    elements = quartzPathElements(path)
+    output = []
+    for element in elements:
+        elem_type, elem_points = element
+        path_points = " ".join([f"{p.x} {p.y}" for p in elem_points])
+        output.append(f"{elem_type} {path_points}")
+    return " ".join(output)
+
+
+@unittest.skipUnless(PYOBJC_AVAILABLE, "pyobjc not installed")
+class QuartzPenTest(unittest.TestCase):
+    def test_draw(self):
+        pen = QuartzPen(None)
+        draw(pen)
+        self.assertEqual(
+            "moveto 50.0 0.0 lineto 50.0 500.0 lineto 200.0 500.0 curveto 350.0 500.0 450.0 400.0 450.0 250.0 curveto 450.0 100.0 350.0 0.0 200.0 0.0 close ",
+            quartzPathToString(pen.path)
+        )
+
+    def test_empty(self):
+        pen = QuartzPen(None)
+        self.assertEqual("", quartzPathToString(pen.path))
+
+
+if __name__ == '__main__':
+    import sys
+    sys.exit(unittest.main())