Merge pull request #3 from garretfick/merge-curtacircuitos

Merge curtacircuitos

1 files changed, 1270 insertions, 0 deletions

diff --git a/gerber/tests/test_primitives.py b/gerber/tests/test_primitives.py
new file mode 100644
index 0000000..c49b558
--- /dev/null
+++ b/gerber/tests/test_primitives.py
@@ -0,0 +1,1270 @@
+#! /usr/bin/env python
+# -*- coding: utf-8 -*-
+
+# Author: Hamilton Kibbe <ham@hamiltonkib.be>
+from operator import add
+
+from ..primitives import *
+from .tests import *
+
+
+def test_primitive_smoketest():
+    p = Primitive()
+    try:
+        p.bounding_box
+        assert_false(True, 'should have thrown the exception')
+    except NotImplementedError: 
+        pass
+    #assert_raises(NotImplementedError, p.bounding_box)
+
+    p.to_metric()
+    p.to_inch()
+    try:
+        p.offset(1, 1)
+        assert_false(True, 'should have thrown the exception')
+    except NotImplementedError:
+        pass
+
+
+def test_line_angle():
+    """ Test Line primitive angle calculation
+    """
+    cases = [((0, 0), (1, 0), math.radians(0)),
+             ((0, 0), (1, 1), math.radians(45)),
+             ((0, 0), (0, 1), math.radians(90)),
+             ((0, 0), (-1, 1), math.radians(135)),
+             ((0, 0), (-1, 0), math.radians(180)),
+             ((0, 0), (-1, -1), math.radians(225)),
+             ((0, 0), (0, -1), math.radians(270)),
+             ((0, 0), (1, -1), math.radians(315)), ]
+    for start, end, expected in cases:
+        l = Line(start, end, 0)
+        line_angle = (l.angle + 2 * math.pi) % (2 * math.pi)
+        assert_almost_equal(line_angle, expected)
+
+
+def test_line_bounds():
+    """ Test Line primitive bounding box calculation
+    """
+    cases = [((0, 0), (1, 1), ((-1, 2), (-1, 2))),
+             ((-1, -1), (1, 1), ((-2, 2), (-2, 2))),
+             ((1, 1), (-1, -1), ((-2, 2), (-2, 2))),
+             ((-1, 1), (1, -1), ((-2, 2), (-2, 2))), ]
+
+    c = Circle((0, 0), 2)
+    r = Rectangle((0, 0), 2, 2)
+    for shape in (c, r):
+        for start, end, expected in cases:
+            l = Line(start, end, shape)
+            assert_equal(l.bounding_box, expected)
+    # Test a non-square rectangle
+    r = Rectangle((0, 0), 3, 2)
+    cases = [((0, 0), (1, 1), ((-1.5, 2.5), (-1, 2))),
+             ((-1, -1), (1, 1), ((-2.5, 2.5), (-2, 2))),
+             ((1, 1), (-1, -1), ((-2.5, 2.5), (-2, 2))),
+             ((-1, 1), (1, -1), ((-2.5, 2.5), (-2, 2))), ]
+    for start, end, expected in cases:
+        l = Line(start, end, r)
+        assert_equal(l.bounding_box, expected)
+
+
+def test_line_vertices():
+    c = Circle((0, 0), 2)
+    l = Line((0, 0), (1, 1), c)
+    assert_equal(l.vertices, None)
+
+    # All 4 compass points, all 4 quadrants and the case where start == end
+    test_cases = [((0, 0), (1, 0), ((-1, -1), (-1, 1), (2, 1), (2, -1))),
+                  ((0, 0), (1, 1), ((-1, -1), (-1, 1),
+                                    (0, 2), (2, 2), (2, 0), (1, -1))),
+                  ((0, 0), (0, 1), ((-1, -1), (-1, 2), (1, 2), (1, -1))),
+                  ((0, 0), (-1, 1), ((-1, -1), (-2, 0),
+                                     (-2, 2), (0, 2), (1, 1), (1, -1))),
+                  ((0, 0), (-1, 0), ((-2, -1), (-2, 1), (1, 1), (1, -1))),
+                  ((0, 0), (-1, -1), ((-2, -2), (1, -1),
+                                      (1, 1), (-1, 1), (-2, 0), (0, -2))),
+                  ((0, 0), (0, -1), ((-1, -2), (-1, 1), (1, 1), (1, -2))),
+                  ((0, 0), (1, -1), ((-1, -1), (0, -2),
+                                     (2, -2), (2, 0), (1, 1), (-1, 1))),
+                  ((0, 0), (0, 0), ((-1, -1), (-1, 1), (1, 1), (1, -1))), ]
+    r = Rectangle((0, 0), 2, 2)
+
+    for start, end, vertices in test_cases:
+        l = Line(start, end, r)
+        assert_equal(set(vertices), set(l.vertices))
+
+
+def test_line_conversion():
+    c = Circle((0, 0), 25.4, units='metric')
+    l = Line((2.54, 25.4), (254.0, 2540.0), c, units='metric')
+
+    # No effect
+    l.to_metric()
+    assert_equal(l.start, (2.54, 25.4))
+    assert_equal(l.end, (254.0, 2540.0))
+    assert_equal(l.aperture.diameter, 25.4)
+
+    l.to_inch()
+    assert_equal(l.start, (0.1, 1.0))
+    assert_equal(l.end, (10.0, 100.0))
+    assert_equal(l.aperture.diameter, 1.0)
+
+    # No effect
+    l.to_inch()
+    assert_equal(l.start, (0.1, 1.0))
+    assert_equal(l.end, (10.0, 100.0))
+    assert_equal(l.aperture.diameter, 1.0)
+
+    c = Circle((0, 0), 1.0, units='inch')
+    l = Line((0.1, 1.0), (10.0, 100.0), c, units='inch')
+
+    # No effect
+    l.to_inch()
+    assert_equal(l.start, (0.1, 1.0))
+    assert_equal(l.end, (10.0, 100.0))
+    assert_equal(l.aperture.diameter, 1.0)
+
+    l.to_metric()
+    assert_equal(l.start, (2.54, 25.4))
+    assert_equal(l.end, (254.0, 2540.0))
+    assert_equal(l.aperture.diameter, 25.4)
+
+    # No effect
+    l.to_metric()
+    assert_equal(l.start, (2.54, 25.4))
+    assert_equal(l.end, (254.0, 2540.0))
+    assert_equal(l.aperture.diameter, 25.4)
+
+    r = Rectangle((0, 0), 25.4, 254.0, units='metric')
+    l = Line((2.54, 25.4), (254.0, 2540.0), r, units='metric')
+    l.to_inch()
+    assert_equal(l.start, (0.1, 1.0))
+    assert_equal(l.end, (10.0, 100.0))
+    assert_equal(l.aperture.width, 1.0)
+    assert_equal(l.aperture.height, 10.0)
+
+    r = Rectangle((0, 0), 1.0, 10.0, units='inch')
+    l = Line((0.1, 1.0), (10.0, 100.0), r, units='inch')
+    l.to_metric()
+    assert_equal(l.start, (2.54, 25.4))
+    assert_equal(l.end, (254.0, 2540.0))
+    assert_equal(l.aperture.width, 25.4)
+    assert_equal(l.aperture.height, 254.0)
+
+
+def test_line_offset():
+    c = Circle((0, 0), 1)
+    l = Line((0, 0), (1, 1), c)
+    l.offset(1, 0)
+    assert_equal(l.start, (1., 0.))
+    assert_equal(l.end, (2., 1.))
+    l.offset(0, 1)
+    assert_equal(l.start, (1., 1.))
+    assert_equal(l.end, (2., 2.))
+
+
+def test_arc_radius():
+    """ Test Arc primitive radius calculation
+    """
+    cases = [((-3, 4), (5, 0), (0, 0), 5),
+             ((0, 1), (1, 0), (0, 0), 1), ]
+
+    for start, end, center, radius in cases:
+        a = Arc(start, end, center, 'clockwise', 0, 'single-quadrant')
+        assert_equal(a.radius, radius)
+
+
+def test_arc_sweep_angle():
+    """ Test Arc primitive sweep angle calculation
+    """
+    cases = [((1, 0), (0, 1), (0, 0), 'counterclockwise', math.radians(90)),
+             ((1, 0), (0, 1), (0, 0), 'clockwise', math.radians(270)),
+             ((1, 0), (-1, 0), (0, 0), 'clockwise', math.radians(180)),
+             ((1, 0), (-1, 0), (0, 0), 'counterclockwise', math.radians(180)), ]
+
+    for start, end, center, direction, sweep in cases:
+        c = Circle((0,0), 1)
+        a = Arc(start, end, center, direction, c, 'single-quadrant')
+        assert_equal(a.sweep_angle, sweep)
+
+
+def test_arc_bounds():
+    """ Test Arc primitive bounding box calculation
+    """
+    cases = [((1, 0), (0, 1), (0, 0), 'clockwise', ((-1.5, 1.5), (-1.5, 1.5))),
+             ((1, 0), (0, 1), (0, 0), 'counterclockwise',
+              ((-0.5, 1.5), (-0.5, 1.5))),
+             # TODO: ADD MORE TEST CASES HERE
+             ]
+    for start, end, center, direction, bounds in cases:
+        c = Circle((0,0), 1)
+        a = Arc(start, end, center, direction, c, 'single-quadrant')
+        assert_equal(a.bounding_box, bounds)
+
+
+def test_arc_conversion():
+    c = Circle((0, 0), 25.4, units='metric')
+    a = Arc((2.54, 25.4), (254.0, 2540.0), (25400.0, 254000.0),
+            'clockwise', c, 'single-quadrant', units='metric')
+
+    # No effect
+    a.to_metric()
+    assert_equal(a.start, (2.54, 25.4))
+    assert_equal(a.end, (254.0, 2540.0))
+    assert_equal(a.center, (25400.0, 254000.0))
+    assert_equal(a.aperture.diameter, 25.4)
+
+    a.to_inch()
+    assert_equal(a.start, (0.1, 1.0))
+    assert_equal(a.end, (10.0, 100.0))
+    assert_equal(a.center, (1000.0, 10000.0))
+    assert_equal(a.aperture.diameter, 1.0)
+
+    # no effect
+    a.to_inch()
+    assert_equal(a.start, (0.1, 1.0))
+    assert_equal(a.end, (10.0, 100.0))
+    assert_equal(a.center, (1000.0, 10000.0))
+    assert_equal(a.aperture.diameter, 1.0)
+
+    c = Circle((0, 0), 1.0, units='inch')
+    a = Arc((0.1, 1.0), (10.0, 100.0), (1000.0, 10000.0),
+            'clockwise', c, 'single-quadrant', units='inch')
+    a.to_metric()
+    assert_equal(a.start, (2.54, 25.4))
+    assert_equal(a.end, (254.0, 2540.0))
+    assert_equal(a.center, (25400.0, 254000.0))
+    assert_equal(a.aperture.diameter, 25.4)
+
+
+def test_arc_offset():
+    c = Circle((0, 0), 1)
+    a = Arc((0, 0), (1, 1), (2, 2), 'clockwise', c, 'single-quadrant')
+    a.offset(1, 0)
+    assert_equal(a.start, (1., 0.))
+    assert_equal(a.end, (2., 1.))
+    assert_equal(a.center, (3., 2.))
+    a.offset(0, 1)
+    assert_equal(a.start, (1., 1.))
+    assert_equal(a.end, (2., 2.))
+    assert_equal(a.center, (3., 3.))
+
+
+def test_circle_radius():
+    """ Test Circle primitive radius calculation
+    """
+    c = Circle((1, 1), 2)
+    assert_equal(c.radius, 1)
+
+
+def test_circle_hole_radius():
+    """ Test Circle primitive hole radius calculation
+    """
+    c = Circle((1, 1), 4, 2)
+    assert_equal(c.hole_radius, 1)
+
+
+def test_circle_bounds():
+    """ Test Circle bounding box calculation
+    """
+    c = Circle((1, 1), 2)
+    assert_equal(c.bounding_box, ((0, 2), (0, 2)))
+
+
+def test_circle_conversion():
+    """Circle conversion of units"""
+    # Circle initially metric, no hole
+    c = Circle((2.54, 25.4), 254.0, units='metric')
+
+    c.to_metric()  # shouldn't do antyhing
+    assert_equal(c.position, (2.54, 25.4))
+    assert_equal(c.diameter, 254.)
+    assert_equal(c.hole_diameter, None)
+
+    c.to_inch()
+    assert_equal(c.position, (0.1, 1.))
+    assert_equal(c.diameter, 10.)
+    assert_equal(c.hole_diameter, None)
+
+    # no effect
+    c.to_inch()
+    assert_equal(c.position, (0.1, 1.))
+    assert_equal(c.diameter, 10.)
+    assert_equal(c.hole_diameter, None)
+    
+    # Circle initially metric, with hole
+    c = Circle((2.54, 25.4), 254.0, 127.0, units='metric')
+
+    c.to_metric()   #shouldn't do antyhing
+    assert_equal(c.position, (2.54, 25.4))
+    assert_equal(c.diameter, 254.)
+    assert_equal(c.hole_diameter, 127.)
+
+    c.to_inch()
+    assert_equal(c.position, (0.1, 1.))
+    assert_equal(c.diameter, 10.)
+    assert_equal(c.hole_diameter, 5.)
+
+    # no effect
+    c.to_inch()
+    assert_equal(c.position, (0.1, 1.))
+    assert_equal(c.diameter, 10.)
+    assert_equal(c.hole_diameter, 5.)
+    
+    # Circle initially inch, no hole
+    c = Circle((0.1, 1.0), 10.0, units='inch')
+    # No effect
+    c.to_inch()
+    assert_equal(c.position, (0.1, 1.))
+    assert_equal(c.diameter, 10.)
+    assert_equal(c.hole_diameter, None)
+
+    c.to_metric()
+    assert_equal(c.position, (2.54, 25.4))
+    assert_equal(c.diameter, 254.)
+    assert_equal(c.hole_diameter, None)
+
+    # no effect
+    c.to_metric()
+    assert_equal(c.position, (2.54, 25.4))
+    assert_equal(c.diameter, 254.)
+    assert_equal(c.hole_diameter, None)
+
+    c = Circle((0.1, 1.0), 10.0, 5.0, units='inch')
+    #No effect
+    c.to_inch()
+    assert_equal(c.position, (0.1, 1.))
+    assert_equal(c.diameter, 10.)
+    assert_equal(c.hole_diameter, 5.)
+
+    c.to_metric()
+    assert_equal(c.position, (2.54, 25.4))
+    assert_equal(c.diameter, 254.)
+    assert_equal(c.hole_diameter, 127.)
+
+    # no effect
+    c.to_metric()
+    assert_equal(c.position, (2.54, 25.4))
+    assert_equal(c.diameter, 254.)
+    assert_equal(c.hole_diameter, 127.)
+
+
+
+def test_circle_offset():
+    c = Circle((0, 0), 1)
+    c.offset(1, 0)
+    assert_equal(c.position, (1., 0.))
+    c.offset(0, 1)
+    assert_equal(c.position, (1., 1.))
+
+
+def test_ellipse_ctor():
+    """ Test ellipse creation
+    """
+    e = Ellipse((2, 2), 3, 2)
+    assert_equal(e.position, (2, 2))
+    assert_equal(e.width, 3)
+    assert_equal(e.height, 2)
+
+
+def test_ellipse_bounds():
+    """ Test ellipse bounding box calculation
+    """
+    e = Ellipse((2, 2), 4, 2)
+    assert_equal(e.bounding_box, ((0, 4), (1, 3)))
+    e = Ellipse((2, 2), 4, 2, rotation=90)
+    assert_equal(e.bounding_box, ((1, 3), (0, 4)))
+    e = Ellipse((2, 2), 4, 2, rotation=180)
+    assert_equal(e.bounding_box, ((0, 4), (1, 3)))
+    e = Ellipse((2, 2), 4, 2, rotation=270)
+    assert_equal(e.bounding_box, ((1, 3), (0, 4)))
+
+
+def test_ellipse_conversion():
+    e = Ellipse((2.54, 25.4), 254.0, 2540., units='metric')
+
+    # No effect
+    e.to_metric()
+    assert_equal(e.position, (2.54, 25.4))
+    assert_equal(e.width, 254.)
+    assert_equal(e.height, 2540.)
+
+    e.to_inch()
+    assert_equal(e.position, (0.1, 1.))
+    assert_equal(e.width, 10.)
+    assert_equal(e.height, 100.)
+
+    # No effect
+    e.to_inch()
+    assert_equal(e.position, (0.1, 1.))
+    assert_equal(e.width, 10.)
+    assert_equal(e.height, 100.)
+
+    e = Ellipse((0.1, 1.), 10.0, 100., units='inch')
+
+    # no effect
+    e.to_inch()
+    assert_equal(e.position, (0.1, 1.))
+    assert_equal(e.width, 10.)
+    assert_equal(e.height, 100.)
+
+    e.to_metric()
+    assert_equal(e.position, (2.54, 25.4))
+    assert_equal(e.width, 254.)
+    assert_equal(e.height, 2540.)
+
+    # No effect
+    e.to_metric()
+    assert_equal(e.position, (2.54, 25.4))
+    assert_equal(e.width, 254.)
+    assert_equal(e.height, 2540.)
+
+
+def test_ellipse_offset():
+    e = Ellipse((0, 0), 1, 2)
+    e.offset(1, 0)
+    assert_equal(e.position, (1., 0.))
+    e.offset(0, 1)
+    assert_equal(e.position, (1., 1.))
+
+
+def test_rectangle_ctor():
+    """ Test rectangle creation
+    """
+    test_cases = (((0, 0), 1, 1), ((0, 0), 1, 2), ((1, 1), 1, 2))
+    for pos, width, height in test_cases:
+        r = Rectangle(pos, width, height)
+        assert_equal(r.position, pos)
+        assert_equal(r.width, width)
+        assert_equal(r.height, height)
+        
+def test_rectangle_hole_radius():
+    """ Test rectangle hole diameter calculation
+    """
+    r = Rectangle((0,0), 2, 2)
+    assert_equal(0, r.hole_radius)
+    
+    r = Rectangle((0,0), 2, 2, 1)
+    assert_equal(0.5, r.hole_radius)
+
+
+
+def test_rectangle_bounds():
+    """ Test rectangle bounding box calculation
+    """
+    r = Rectangle((0, 0), 2, 2)
+    xbounds, ybounds = r.bounding_box
+    assert_array_almost_equal(xbounds, (-1, 1))
+    assert_array_almost_equal(ybounds, (-1, 1))
+    r = Rectangle((0, 0), 2, 2, rotation=45)
+    xbounds, ybounds = r.bounding_box
+    assert_array_almost_equal(xbounds, (-math.sqrt(2), math.sqrt(2)))
+    assert_array_almost_equal(ybounds, (-math.sqrt(2), math.sqrt(2)))
+
+
+def test_rectangle_conversion():
+    """Test converting rectangles between units"""
+    
+    # Initially metric no hole
+    r = Rectangle((2.54, 25.4), 254.0, 2540.0, units='metric')
+
+    r.to_metric()
+    assert_equal(r.position, (2.54, 25.4))
+    assert_equal(r.width, 254.0)
+    assert_equal(r.height, 2540.0)
+
+    r.to_inch()
+    assert_equal(r.position, (0.1, 1.0))
+    assert_equal(r.width, 10.0)
+    assert_equal(r.height, 100.0)
+
+    r.to_inch()
+    assert_equal(r.position, (0.1, 1.0))
+    assert_equal(r.width, 10.0)
+    assert_equal(r.height, 100.0)
+    
+    # Initially metric with hole
+    r = Rectangle((2.54, 25.4), 254.0, 2540.0, 127.0, units='metric')
+
+    r.to_metric()
+    assert_equal(r.position, (2.54,25.4))
+    assert_equal(r.width, 254.0)
+    assert_equal(r.height, 2540.0)
+    assert_equal(r.hole_diameter, 127.0)
+
+    r.to_inch()
+    assert_equal(r.position, (0.1, 1.0))
+    assert_equal(r.width, 10.0)
+    assert_equal(r.height, 100.0)
+    assert_equal(r.hole_diameter, 5.0)
+
+    r.to_inch()
+    assert_equal(r.position, (0.1, 1.0))
+    assert_equal(r.width, 10.0)
+    assert_equal(r.height, 100.0)
+    assert_equal(r.hole_diameter, 5.0)
+
+    # Initially inch, no hole
+    r = Rectangle((0.1, 1.0), 10.0, 100.0, units='inch')
+    r.to_inch()
+    assert_equal(r.position, (0.1, 1.0))
+    assert_equal(r.width, 10.0)
+    assert_equal(r.height, 100.0)
+
+    r.to_metric()
+    assert_equal(r.position, (2.54, 25.4))
+    assert_equal(r.width, 254.0)
+    assert_equal(r.height, 2540.0)
+
+    r.to_metric()
+    assert_equal(r.position, (2.54, 25.4))
+    assert_equal(r.width, 254.0)
+    assert_equal(r.height, 2540.0)
+    
+    # Initially inch with hole
+    r = Rectangle((0.1, 1.0), 10.0, 100.0, 5.0, units='inch')
+    r.to_inch()
+    assert_equal(r.position, (0.1, 1.0))
+    assert_equal(r.width, 10.0)
+    assert_equal(r.height, 100.0)
+    assert_equal(r.hole_diameter, 5.0)
+
+    r.to_metric()
+    assert_equal(r.position, (2.54,25.4))
+    assert_equal(r.width, 254.0)
+    assert_equal(r.height, 2540.0)
+    assert_equal(r.hole_diameter, 127.0)
+
+    r.to_metric()
+    assert_equal(r.position, (2.54, 25.4))
+    assert_equal(r.width, 254.0)
+    assert_equal(r.height, 2540.0)
+    assert_equal(r.hole_diameter, 127.0)
+
+
+def test_rectangle_offset():
+    r = Rectangle((0, 0), 1, 2)
+    r.offset(1, 0)
+    assert_equal(r.position, (1., 0.))
+    r.offset(0, 1)
+    assert_equal(r.position, (1., 1.))
+
+
+def test_diamond_ctor():
+    """ Test diamond creation
+    """
+    test_cases = (((0, 0), 1, 1), ((0, 0), 1, 2), ((1, 1), 1, 2))
+    for pos, width, height in test_cases:
+        d = Diamond(pos, width, height)
+        assert_equal(d.position, pos)
+        assert_equal(d.width, width)
+        assert_equal(d.height, height)
+
+
+def test_diamond_bounds():
+    """ Test diamond bounding box calculation
+    """
+    d = Diamond((0, 0), 2, 2)
+    xbounds, ybounds = d.bounding_box
+    assert_array_almost_equal(xbounds, (-1, 1))
+    assert_array_almost_equal(ybounds, (-1, 1))
+    d = Diamond((0, 0), math.sqrt(2), math.sqrt(2), rotation=45)
+    xbounds, ybounds = d.bounding_box
+    assert_array_almost_equal(xbounds, (-1, 1))
+    assert_array_almost_equal(ybounds, (-1, 1))
+
+
+def test_diamond_conversion():
+    d = Diamond((2.54, 25.4), 254.0, 2540.0, units='metric')
+
+    d.to_metric()
+    assert_equal(d.position, (2.54, 25.4))
+    assert_equal(d.width, 254.0)
+    assert_equal(d.height, 2540.0)
+
+    d.to_inch()
+    assert_equal(d.position, (0.1, 1.0))
+    assert_equal(d.width, 10.0)
+    assert_equal(d.height, 100.0)
+
+    d.to_inch()
+    assert_equal(d.position, (0.1, 1.0))
+    assert_equal(d.width, 10.0)
+    assert_equal(d.height, 100.0)
+
+    d = Diamond((0.1, 1.0), 10.0, 100.0, units='inch')
+
+    d.to_inch()
+    assert_equal(d.position, (0.1, 1.0))
+    assert_equal(d.width, 10.0)
+    assert_equal(d.height, 100.0)
+
+    d.to_metric()
+    assert_equal(d.position, (2.54, 25.4))
+    assert_equal(d.width, 254.0)
+    assert_equal(d.height, 2540.0)
+
+    d.to_metric()
+    assert_equal(d.position, (2.54, 25.4))
+    assert_equal(d.width, 254.0)
+    assert_equal(d.height, 2540.0)
+
+
+def test_diamond_offset():
+    d = Diamond((0, 0), 1, 2)
+    d.offset(1, 0)
+    assert_equal(d.position, (1., 0.))
+    d.offset(0, 1)
+    assert_equal(d.position, (1., 1.))
+
+
+def test_chamfer_rectangle_ctor():
+    """ Test chamfer rectangle creation
+    """
+    test_cases = (((0, 0), 1, 1, 0.2, (True, True, False, False)),
+                  ((0, 0), 1, 2, 0.3, (True, True, True, True)),
+                  ((1, 1), 1, 2, 0.4, (False, False, False, False)))
+    for pos, width, height, chamfer, corners in test_cases:
+        r = ChamferRectangle(pos, width, height, chamfer, corners)
+        assert_equal(r.position, pos)
+        assert_equal(r.width, width)
+        assert_equal(r.height, height)
+        assert_equal(r.chamfer, chamfer)
+        assert_array_almost_equal(r.corners, corners)
+
+
+def test_chamfer_rectangle_bounds():
+    """ Test chamfer rectangle bounding box calculation
+    """
+    r = ChamferRectangle((0, 0), 2, 2, 0.2, (True, True, False, False))
+    xbounds, ybounds = r.bounding_box
+    assert_array_almost_equal(xbounds, (-1, 1))
+    assert_array_almost_equal(ybounds, (-1, 1))
+    r = ChamferRectangle(
+        (0, 0), 2, 2, 0.2, (True, True, False, False), rotation=45)
+    xbounds, ybounds = r.bounding_box
+    assert_array_almost_equal(xbounds, (-math.sqrt(2), math.sqrt(2)))
+    assert_array_almost_equal(ybounds, (-math.sqrt(2), math.sqrt(2)))
+
+
+def test_chamfer_rectangle_conversion():
+    r = ChamferRectangle((2.54, 25.4), 254.0, 2540.0, 0.254,
+                         (True, True, False, False), units='metric')
+
+    r.to_metric()
+    assert_equal(r.position, (2.54, 25.4))
+    assert_equal(r.width, 254.0)
+    assert_equal(r.height, 2540.0)
+    assert_equal(r.chamfer, 0.254)
+
+    r.to_inch()
+    assert_equal(r.position, (0.1, 1.0))
+    assert_equal(r.width, 10.0)
+    assert_equal(r.height, 100.0)
+    assert_equal(r.chamfer, 0.01)
+
+    r.to_inch()
+    assert_equal(r.position, (0.1, 1.0))
+    assert_equal(r.width, 10.0)
+    assert_equal(r.height, 100.0)
+    assert_equal(r.chamfer, 0.01)
+
+    r = ChamferRectangle((0.1, 1.0), 10.0, 100.0, 0.01,
+                         (True, True, False, False), units='inch')
+    r.to_inch()
+    assert_equal(r.position, (0.1, 1.0))
+    assert_equal(r.width, 10.0)
+    assert_equal(r.height, 100.0)
+    assert_equal(r.chamfer, 0.01)
+
+    r.to_metric()
+    assert_equal(r.position, (2.54, 25.4))
+    assert_equal(r.width, 254.0)
+    assert_equal(r.height, 2540.0)
+    assert_equal(r.chamfer, 0.254)
+
+    r.to_metric()
+    assert_equal(r.position, (2.54, 25.4))
+    assert_equal(r.width, 254.0)
+    assert_equal(r.height, 2540.0)
+    assert_equal(r.chamfer, 0.254)
+
+
+def test_chamfer_rectangle_offset():
+    r = ChamferRectangle((0, 0), 1, 2, 0.01, (True, True, False, False))
+    r.offset(1, 0)
+    assert_equal(r.position, (1., 0.))
+    r.offset(0, 1)
+    assert_equal(r.position, (1., 1.))
+
+
+def test_round_rectangle_ctor():
+    """ Test round rectangle creation
+    """
+    test_cases = (((0, 0), 1, 1, 0.2, (True, True, False, False)),
+                  ((0, 0), 1, 2, 0.3, (True, True, True, True)),
+                  ((1, 1), 1, 2, 0.4, (False, False, False, False)))
+    for pos, width, height, radius, corners in test_cases:
+        r = RoundRectangle(pos, width, height, radius, corners)
+        assert_equal(r.position, pos)
+        assert_equal(r.width, width)
+        assert_equal(r.height, height)
+        assert_equal(r.radius, radius)
+        assert_array_almost_equal(r.corners, corners)
+
+
+def test_round_rectangle_bounds():
+    """ Test round rectangle bounding box calculation
+    """
+    r = RoundRectangle((0, 0), 2, 2, 0.2, (True, True, False, False))
+    xbounds, ybounds = r.bounding_box
+    assert_array_almost_equal(xbounds, (-1, 1))
+    assert_array_almost_equal(ybounds, (-1, 1))
+    r = RoundRectangle((0, 0), 2, 2, 0.2,
+                       (True, True, False, False), rotation=45)
+    xbounds, ybounds = r.bounding_box
+    assert_array_almost_equal(xbounds, (-math.sqrt(2), math.sqrt(2)))
+    assert_array_almost_equal(ybounds, (-math.sqrt(2), math.sqrt(2)))
+
+
+def test_round_rectangle_conversion():
+    r = RoundRectangle((2.54, 25.4), 254.0, 2540.0, 0.254,
+                       (True, True, False, False), units='metric')
+
+    r.to_metric()
+    assert_equal(r.position, (2.54, 25.4))
+    assert_equal(r.width, 254.0)
+    assert_equal(r.height, 2540.0)
+    assert_equal(r.radius, 0.254)
+
+    r.to_inch()
+    assert_equal(r.position, (0.1, 1.0))
+    assert_equal(r.width, 10.0)
+    assert_equal(r.height, 100.0)
+    assert_equal(r.radius, 0.01)
+
+    r.to_inch()
+    assert_equal(r.position, (0.1, 1.0))
+    assert_equal(r.width, 10.0)
+    assert_equal(r.height, 100.0)
+    assert_equal(r.radius, 0.01)
+
+    r = RoundRectangle((0.1, 1.0), 10.0, 100.0, 0.01,
+                       (True, True, False, False), units='inch')
+
+    r.to_inch()
+    assert_equal(r.position, (0.1, 1.0))
+    assert_equal(r.width, 10.0)
+    assert_equal(r.height, 100.0)
+    assert_equal(r.radius, 0.01)
+
+    r.to_metric()
+    assert_equal(r.position, (2.54, 25.4))
+    assert_equal(r.width, 254.0)
+    assert_equal(r.height, 2540.0)
+    assert_equal(r.radius, 0.254)
+
+    r.to_metric()
+    assert_equal(r.position, (2.54, 25.4))
+    assert_equal(r.width, 254.0)
+    assert_equal(r.height, 2540.0)
+    assert_equal(r.radius, 0.254)
+
+
+def test_round_rectangle_offset():
+    r = RoundRectangle((0, 0), 1, 2, 0.01, (True, True, False, False))
+    r.offset(1, 0)
+    assert_equal(r.position, (1., 0.))
+    r.offset(0, 1)
+    assert_equal(r.position, (1., 1.))
+
+
+def test_obround_ctor():
+    """ Test obround creation
+    """
+    test_cases = (((0, 0), 1, 1),
+                  ((0, 0), 1, 2),
+                  ((1, 1), 1, 2))
+    for pos, width, height in test_cases:
+        o = Obround(pos, width, height)
+        assert_equal(o.position, pos)
+        assert_equal(o.width, width)
+        assert_equal(o.height, height)
+
+
+def test_obround_bounds():
+    """ Test obround bounding box calculation
+    """
+    o = Obround((2, 2), 2, 4)
+    xbounds, ybounds = o.bounding_box
+    assert_array_almost_equal(xbounds, (1, 3))
+    assert_array_almost_equal(ybounds, (0, 4))
+    o = Obround((2, 2), 4, 2)
+    xbounds, ybounds = o.bounding_box
+    assert_array_almost_equal(xbounds, (0, 4))
+    assert_array_almost_equal(ybounds, (1, 3))
+
+
+def test_obround_orientation():
+    o = Obround((0, 0), 2, 1)
+    assert_equal(o.orientation, 'horizontal')
+    o = Obround((0, 0), 1, 2)
+    assert_equal(o.orientation, 'vertical')
+
+
+def test_obround_subshapes():
+    o = Obround((0, 0), 1, 4)
+    ss = o.subshapes
+    assert_array_almost_equal(ss['rectangle'].position, (0, 0))
+    assert_array_almost_equal(ss['circle1'].position, (0, 1.5))
+    assert_array_almost_equal(ss['circle2'].position, (0, -1.5))
+    o = Obround((0, 0), 4, 1)
+    ss = o.subshapes
+    assert_array_almost_equal(ss['rectangle'].position, (0, 0))
+    assert_array_almost_equal(ss['circle1'].position, (1.5, 0))
+    assert_array_almost_equal(ss['circle2'].position, (-1.5, 0))
+
+
+def test_obround_conversion():
+    o = Obround((2.54, 25.4), 254.0, 2540.0, units='metric')
+
+    # No effect
+    o.to_metric()
+    assert_equal(o.position, (2.54, 25.4))
+    assert_equal(o.width, 254.0)
+    assert_equal(o.height, 2540.0)
+
+    o.to_inch()
+    assert_equal(o.position, (0.1, 1.0))
+    assert_equal(o.width, 10.0)
+    assert_equal(o.height, 100.0)
+
+    # No effect
+    o.to_inch()
+    assert_equal(o.position, (0.1, 1.0))
+    assert_equal(o.width, 10.0)
+    assert_equal(o.height, 100.0)
+
+    o = Obround((0.1, 1.0), 10.0, 100.0, units='inch')
+
+    # No effect
+    o.to_inch()
+    assert_equal(o.position, (0.1, 1.0))
+    assert_equal(o.width, 10.0)
+    assert_equal(o.height, 100.0)
+
+    o.to_metric()
+    assert_equal(o.position, (2.54, 25.4))
+    assert_equal(o.width, 254.0)
+    assert_equal(o.height, 2540.0)
+
+    # No effect
+    o.to_metric()
+    assert_equal(o.position, (2.54, 25.4))
+    assert_equal(o.width, 254.0)
+    assert_equal(o.height, 2540.0)
+
+
+def test_obround_offset():
+    o = Obround((0, 0), 1, 2)
+    o.offset(1, 0)
+    assert_equal(o.position, (1., 0.))
+    o.offset(0, 1)
+    assert_equal(o.position, (1., 1.))
+
+
+def test_polygon_ctor():
+    """ Test polygon creation
+    """
+    test_cases = (((0, 0), 3, 5, 0),
+                  ((0, 0), 5, 6, 0),
+                  ((1, 1), 7, 7, 45))
+    for pos, sides, radius, hole_diameter in test_cases:
+        p = Polygon(pos, sides, radius, hole_diameter)
+        assert_equal(p.position, pos)
+        assert_equal(p.sides, sides)
+        assert_equal(p.radius, radius)
+        assert_equal(p.hole_diameter, hole_diameter)
+
+
+
+def test_polygon_bounds():
+    """ Test polygon bounding box calculation
+    """
+    p = Polygon((2, 2), 3, 2, 0)
+    xbounds, ybounds = p.bounding_box
+    assert_array_almost_equal(xbounds, (0, 4))
+    assert_array_almost_equal(ybounds, (0, 4))
+    p = Polygon((2, 2), 3, 4, 0)
+    xbounds, ybounds = p.bounding_box
+    assert_array_almost_equal(xbounds, (-2, 6))
+    assert_array_almost_equal(ybounds, (-2, 6))
+
+
+def test_polygon_conversion():
+    p = Polygon((2.54, 25.4), 3, 254.0, 0, units='metric')
+    
+    # No effect
+    p.to_metric()
+    assert_equal(p.position, (2.54, 25.4))
+    assert_equal(p.radius, 254.0)
+
+    p.to_inch()
+    assert_equal(p.position, (0.1, 1.0))
+    assert_equal(p.radius, 10.0)
+
+    # No effect
+    p.to_inch()
+    assert_equal(p.position, (0.1, 1.0))
+    assert_equal(p.radius, 10.0)
+
+    p = Polygon((0.1, 1.0), 3, 10.0, 0, units='inch')
+
+    # No effect
+    p.to_inch()
+    assert_equal(p.position, (0.1, 1.0))
+    assert_equal(p.radius, 10.0)
+
+    p.to_metric()
+    assert_equal(p.position, (2.54, 25.4))
+    assert_equal(p.radius, 254.0)
+
+    # No effect
+    p.to_metric()
+    assert_equal(p.position, (2.54, 25.4))
+    assert_equal(p.radius, 254.0)
+
+
+def test_polygon_offset():
+    p = Polygon((0, 0), 5, 10, 0)
+    p.offset(1, 0)
+    assert_equal(p.position, (1., 0.))
+    p.offset(0, 1)
+    assert_equal(p.position, (1., 1.))
+
+
+def test_region_ctor():
+    """ Test Region creation
+    """
+    apt = Circle((0, 0), 0)
+    lines = (Line((0, 0), (1, 0), apt), Line((1, 0), (1, 1), apt),
+             Line((1, 1), (0, 1), apt), Line((0, 1), (0, 0), apt))
+    points = ((0, 0), (1, 0), (1, 1), (0, 1))
+    r = Region(lines)
+    for i, p in enumerate(lines):
+        assert_equal(r.primitives[i], p)
+
+
+def test_region_bounds():
+    """ Test region bounding box calculation
+    """
+    apt = Circle((0, 0), 0)
+    lines = (Line((0, 0), (1, 0), apt), Line((1, 0), (1, 1), apt),
+             Line((1, 1), (0, 1), apt), Line((0, 1), (0, 0), apt))
+    r = Region(lines)
+    xbounds, ybounds = r.bounding_box
+    assert_array_almost_equal(xbounds, (0, 1))
+    assert_array_almost_equal(ybounds, (0, 1))
+
+
+def test_region_offset():
+    apt = Circle((0, 0), 0)
+    lines = (Line((0, 0), (1, 0), apt), Line((1, 0), (1, 1), apt),
+             Line((1, 1), (0, 1), apt), Line((0, 1), (0, 0), apt))
+    r = Region(lines)
+    xlim, ylim = r.bounding_box
+    r.offset(0, 1)
+    new_xlim, new_ylim = r.bounding_box
+    assert_array_almost_equal(new_xlim, xlim)
+    assert_array_almost_equal(new_ylim, tuple([y + 1 for y in ylim]))
+
+
+def test_round_butterfly_ctor():
+    """ Test round butterfly creation
+    """
+    test_cases = (((0, 0), 3), ((0, 0), 5), ((1, 1), 7))
+    for pos, diameter in test_cases:
+        b = RoundButterfly(pos, diameter)
+        assert_equal(b.position, pos)
+        assert_equal(b.diameter, diameter)
+        assert_equal(b.radius, diameter / 2.)
+
+
+def test_round_butterfly_ctor_validation():
+    """ Test RoundButterfly argument validation
+    """
+    assert_raises(TypeError, RoundButterfly, 3, 5)
+    assert_raises(TypeError, RoundButterfly, (3, 4, 5), 5)
+
+
+def test_round_butterfly_conversion():
+    b = RoundButterfly((2.54, 25.4), 254.0, units='metric')
+
+    # No Effect
+    b.to_metric()
+    assert_equal(b.position, (2.54, 25.4))
+    assert_equal(b.diameter, (254.0))
+
+    b.to_inch()
+    assert_equal(b.position, (0.1, 1.0))
+    assert_equal(b.diameter, 10.0)
+
+    # No effect
+    b.to_inch()
+    assert_equal(b.position, (0.1, 1.0))
+    assert_equal(b.diameter, 10.0)
+
+    b = RoundButterfly((0.1, 1.0), 10.0, units='inch')
+
+    # No effect
+    b.to_inch()
+    assert_equal(b.position, (0.1, 1.0))
+    assert_equal(b.diameter, 10.0)
+
+    b.to_metric()
+    assert_equal(b.position, (2.54, 25.4))
+    assert_equal(b.diameter, (254.0))
+
+    # No Effect
+    b.to_metric()
+    assert_equal(b.position, (2.54, 25.4))
+    assert_equal(b.diameter, (254.0))
+
+
+def test_round_butterfly_offset():
+    b = RoundButterfly((0, 0), 1)
+    b.offset(1, 0)
+    assert_equal(b.position, (1., 0.))
+    b.offset(0, 1)
+    assert_equal(b.position, (1., 1.))
+
+
+def test_round_butterfly_bounds():
+    """ Test RoundButterfly bounding box calculation
+    """
+    b = RoundButterfly((0, 0), 2)
+    xbounds, ybounds = b.bounding_box
+    assert_array_almost_equal(xbounds, (-1, 1))
+    assert_array_almost_equal(ybounds, (-1, 1))
+
+
+def test_square_butterfly_ctor():
+    """ Test SquareButterfly creation
+    """
+    test_cases = (((0, 0), 3), ((0, 0), 5), ((1, 1), 7))
+    for pos, side in test_cases:
+        b = SquareButterfly(pos, side)
+        assert_equal(b.position, pos)
+        assert_equal(b.side, side)
+
+
+def test_square_butterfly_ctor_validation():
+    """ Test SquareButterfly argument validation
+    """
+    assert_raises(TypeError, SquareButterfly, 3, 5)
+    assert_raises(TypeError, SquareButterfly, (3, 4, 5), 5)
+
+
+def test_square_butterfly_bounds():
+    """ Test SquareButterfly bounding box calculation
+    """
+    b = SquareButterfly((0, 0), 2)
+    xbounds, ybounds = b.bounding_box
+    assert_array_almost_equal(xbounds, (-1, 1))
+    assert_array_almost_equal(ybounds, (-1, 1))
+
+
+def test_squarebutterfly_conversion():
+    b = SquareButterfly((2.54, 25.4), 254.0, units='metric')
+
+    # No effect
+    b.to_metric()
+    assert_equal(b.position, (2.54, 25.4))
+    assert_equal(b.side, (254.0))
+
+    b.to_inch()
+    assert_equal(b.position, (0.1, 1.0))
+    assert_equal(b.side, 10.0)
+
+    # No effect
+    b.to_inch()
+    assert_equal(b.position, (0.1, 1.0))
+    assert_equal(b.side, 10.0)
+
+    b = SquareButterfly((0.1, 1.0), 10.0, units='inch')
+
+    # No effect
+    b.to_inch()
+    assert_equal(b.position, (0.1, 1.0))
+    assert_equal(b.side, 10.0)
+
+    b.to_metric()
+    assert_equal(b.position, (2.54, 25.4))
+    assert_equal(b.side, (254.0))
+
+    # No effect
+    b.to_metric()
+    assert_equal(b.position, (2.54, 25.4))
+    assert_equal(b.side, (254.0))
+
+
+def test_square_butterfly_offset():
+    b = SquareButterfly((0, 0), 1)
+    b.offset(1, 0)
+    assert_equal(b.position, (1., 0.))
+    b.offset(0, 1)
+    assert_equal(b.position, (1., 1.))
+
+
+def test_donut_ctor():
+    """ Test Donut primitive creation
+    """
+    test_cases = (((0, 0), 'round', 3, 5), ((0, 0), 'square', 5, 7),
+                  ((1, 1), 'hexagon', 7, 9), ((2, 2), 'octagon', 9, 11))
+    for pos, shape, in_d, out_d in test_cases:
+        d = Donut(pos, shape, in_d, out_d)
+        assert_equal(d.position, pos)
+        assert_equal(d.shape, shape)
+        assert_equal(d.inner_diameter, in_d)
+        assert_equal(d.outer_diameter, out_d)
+
+
+def test_donut_ctor_validation():
+    assert_raises(TypeError, Donut, 3, 'round', 5, 7)
+    assert_raises(TypeError, Donut, (3, 4, 5), 'round', 5, 7)
+    assert_raises(ValueError, Donut, (0, 0), 'triangle', 3, 5)
+    assert_raises(ValueError, Donut, (0, 0), 'round', 5, 3)
+
+
+def test_donut_bounds():
+    d = Donut((0, 0), 'round', 0.0, 2.0)
+    xbounds, ybounds = d.bounding_box
+    assert_equal(xbounds, (-1., 1.))
+    assert_equal(ybounds, (-1., 1.))
+
+
+def test_donut_conversion():
+    d = Donut((2.54, 25.4), 'round', 254.0, 2540.0, units='metric')
+
+    # No effect
+    d.to_metric()
+    assert_equal(d.position, (2.54, 25.4))
+    assert_equal(d.inner_diameter, 254.0)
+    assert_equal(d.outer_diameter, 2540.0)
+
+    d.to_inch()
+    assert_equal(d.position, (0.1, 1.0))
+    assert_equal(d.inner_diameter, 10.0)
+    assert_equal(d.outer_diameter, 100.0)
+
+    # No effect
+    d.to_inch()
+    assert_equal(d.position, (0.1, 1.0))
+    assert_equal(d.inner_diameter, 10.0)
+    assert_equal(d.outer_diameter, 100.0)
+
+    d = Donut((0.1, 1.0), 'round', 10.0, 100.0, units='inch')
+
+    # No effect
+    d.to_inch()
+    assert_equal(d.position, (0.1, 1.0))
+    assert_equal(d.inner_diameter, 10.0)
+    assert_equal(d.outer_diameter, 100.0)
+
+    d.to_metric()
+    assert_equal(d.position, (2.54, 25.4))
+    assert_equal(d.inner_diameter, 254.0)
+    assert_equal(d.outer_diameter, 2540.0)
+
+    # No effect
+    d.to_metric()
+    assert_equal(d.position, (2.54, 25.4))
+    assert_equal(d.inner_diameter, 254.0)
+    assert_equal(d.outer_diameter, 2540.0)
+
+
+def test_donut_offset():
+    d = Donut((0, 0), 'round', 1, 10)
+    d.offset(1, 0)
+    assert_equal(d.position, (1., 0.))
+    d.offset(0, 1)
+    assert_equal(d.position, (1., 1.))
+
+
+def test_drill_ctor():
+    """ Test drill primitive creation
+    """
+    test_cases = (((0, 0), 2), ((1, 1), 3), ((2, 2), 5))
+    for position, diameter in test_cases:
+        d = Drill(position, diameter, None)
+        assert_equal(d.position, position)
+        assert_equal(d.diameter, diameter)
+        assert_equal(d.radius, diameter / 2.)
+
+
+def test_drill_ctor_validation():
+    """ Test drill argument validation
+    """
+    assert_raises(TypeError, Drill, 3, 5, None)
+    assert_raises(TypeError, Drill, (3,4,5), 5, None)
+
+
+def test_drill_bounds():
+    d = Drill((0, 0), 2, None)
+    xbounds, ybounds = d.bounding_box
+    assert_array_almost_equal(xbounds, (-1, 1))
+    assert_array_almost_equal(ybounds, (-1, 1))
+    d = Drill((1, 2), 2, None)
+    xbounds, ybounds = d.bounding_box
+    assert_array_almost_equal(xbounds, (0, 2))
+    assert_array_almost_equal(ybounds, (1, 3))
+
+
+def test_drill_conversion():
+    d = Drill((2.54, 25.4), 254., None, units='metric')
+
+    # No effect
+    d.to_metric()
+    assert_equal(d.position, (2.54, 25.4))
+    assert_equal(d.diameter, 254.0)
+
+    d.to_inch()
+    assert_equal(d.position, (0.1, 1.0))
+    assert_equal(d.diameter, 10.0)
+
+    # No effect
+    d.to_inch()
+    assert_equal(d.position, (0.1, 1.0))
+    assert_equal(d.diameter, 10.0)
+
+    d = Drill((0.1, 1.0), 10., None, units='inch')
+
+    # No effect
+    d.to_inch()
+    assert_equal(d.position, (0.1, 1.0))
+    assert_equal(d.diameter, 10.0)
+
+    d.to_metric()
+    assert_equal(d.position, (2.54, 25.4))
+    assert_equal(d.diameter, 254.0)
+
+    # No effect
+    d.to_metric()
+    assert_equal(d.position, (2.54, 25.4))
+    assert_equal(d.diameter, 254.0)
+
+
+def test_drill_offset():
+    d = Drill((0, 0), 1., None)
+    d.offset(1, 0)
+    assert_equal(d.position, (1., 0.))
+    d.offset(0, 1)
+    assert_equal(d.position, (1., 1.))
+
+
+def test_drill_equality():
+    d = Drill((2.54, 25.4), 254., None)
+    d1 = Drill((2.54, 25.4), 254., None)
+    assert_equal(d, d1)
+    d1 = Drill((2.54, 25.4), 254.2, None)
+    assert_not_equal(d, d1)