def test_len1(self):
"""
Tests corner cases.
Test tag: <tc>#tests#LineSegment.len</tc>
"""
ls = LineSegment(Point((0, 0)), Point((0, 0)))
self.assertEquals(ls.len, 0)
ls = LineSegment(Point((0, 0)), Point((-3, 0)))
self.assertEquals(ls.len, 3)
def test_is_cw1(self):
"""
Test corner cases for horizontal segment starting at origin.
Test tag: <tc>#tests#LineSegment.is_cw</tc>
"""
ls = LineSegment(Point((0, 0)), Point((5, 0)))
self.assertFalse(ls.is_cw(
Point((10, 0)))) # At positive boundary beyond segment
self.assertFalse(ls.is_cw(Point((3, 0)))) # On segment
self.assertFalse(ls.is_cw(
Point((-10, 0)))) # At negative boundary beyond segment
self.assertFalse(ls.is_cw(Point((0, 0)))) # Endpoint of segment
self.assertFalse(ls.is_cw(Point((5, 0)))) # Endpoint of segment
def test_is_ccw3(self):
"""
Test corner cases for non-axis-aligned segment not through origin.
Test tag: <tc>#tests#LineSegment.is_ccw</tc>
"""
ls = LineSegment(Point((0, 1)), Point((5, 6)))
self.assertFalse(ls.is_ccw(
Point((10, 11)))) # At positive boundary beyond segment
self.assertFalse(ls.is_ccw(Point((3, 4)))) # On segment
self.assertFalse(ls.is_ccw(
Point((-10, -9)))) # At negative boundary beyond segment
self.assertFalse(ls.is_ccw(Point((0, 1)))) # Endpoint of segment
self.assertFalse(ls.is_ccw(Point((5, 6)))) # Endpoint of segment
def test_line1(self):
"""
Tests corner cases.
Test tag: <tc>#tests#LineSegment.line</tc>
"""
import math
ls = LineSegment(Point((0, 0)), Point((1, 0)))
self.assertEquals(ls.line.m, 0)
self.assertEquals(ls.line.b, 0)
ls = LineSegment(Point((0, 0)), Point((0, 1)))
self.assertEquals(ls.line.m, float('inf'))
self.assertTrue(math.isnan(ls.line.b))
ls = LineSegment(Point((0, 0)), Point((0, -1)))
self.assertEquals(ls.line.m, float('inf'))
self.assertTrue(math.isnan(ls.line.b))
ls = LineSegment(Point((0, 0)), Point((0, 0)))
self.assertEquals(ls.line, None)
ls = LineSegment(Point((5,0)), Point((10,0)))
ls1 = LineSegment(Point((5,0)), Point((10,1)))
self.assertTrue(ls.intersect(ls1))
ls2 = LineSegment(Point((5,1)), Point((10,1)))
self.assertFalse(ls.intersect(ls2))
ls2 = LineSegment(Point((7,-1)), Point((7,2)))
self.assertTrue(ls.intersect(ls2))
def test_get_swap1(self):
"""
Tests corner cases.
Test tag: <tc>#tests#LineSegment.get_swap</tc>
"""
ls = LineSegment(Point((0, 0)), Point((10, 0)))
swap = ls.get_swap()
self.assertEquals(ls.p1, swap.p2)
self.assertEquals(ls.p2, swap.p1)
ls = LineSegment(Point((-5, 0)), Point((5, 0)))
swap = ls.get_swap()
self.assertEquals(ls.p1, swap.p2)
self.assertEquals(ls.p2, swap.p1)
ls = LineSegment(Point((0, 0)), Point((0, 0)))
swap = ls.get_swap()
self.assertEquals(ls.p1, swap.p2)
self.assertEquals(ls.p2, swap.p1)
ls = LineSegment(Point((5, 5)), Point((5, 5)))
swap = ls.get_swap()
self.assertEquals(ls.p1, swap.p2)
self.assertEquals(ls.p2, swap.p1)
def test_line1(self):
"""
Tests corner cases.
Test tag: <tc>#tests#LineSegment.line</tc>
"""
import math
ls = LineSegment(Point((0, 0)), Point((1, 0)))
self.assertEquals(ls.line.m, 0)
self.assertEquals(ls.line.b, 0)
ls = LineSegment(Point((0, 0)), Point((0, 1)))
self.assertEquals(ls.line.m, float('inf'))
self.assertTrue(math.isnan(ls.line.b))
ls = LineSegment(Point((0, 0)), Point((0, -1)))
self.assertEquals(ls.line.m, float('inf'))
self.assertTrue(math.isnan(ls.line.b))
ls = LineSegment(Point((0, 0)), Point((0, 0)))
self.assertEquals(ls.line, None)
def test_bounding_box(self):
"""
Tests corner cases.
Test tag: <tc>#tests#LineSegment.bounding_box</tc>
"""
ls = LineSegment(Point((0, 0)), Point((0, 10)))
self.assertEquals(ls.bounding_box.left, 0)
self.assertEquals(ls.bounding_box.lower, 0)
self.assertEquals(ls.bounding_box.right, 0)
self.assertEquals(ls.bounding_box.upper, 10)
ls = LineSegment(Point((0, 0)), Point((-3, -4)))
self.assertEquals(ls.bounding_box.left, -3)
self.assertEquals(ls.bounding_box.lower, -4)
self.assertEquals(ls.bounding_box.right, 0)
self.assertEquals(ls.bounding_box.upper, 0)
ls = LineSegment(Point((-5, 0)), Point((3, 0)))
self.assertEquals(ls.bounding_box.left, -5)
self.assertEquals(ls.bounding_box.lower, 0)
self.assertEquals(ls.bounding_box.right, 3)
self.assertEquals(ls.bounding_box.upper, 0)
def test_is_cw2(self):
"""
Test corner cases for vertical segment ending at origin.
Test tag: <tc>#tests#LineSegment.is_cw</tc>
"""
ls = LineSegment(Point((0, -5)), Point((0, 0)))
self.assertFalse(ls.is_cw(Point(
(0, 10)))) # At positive boundary beyond segment
self.assertFalse(ls.is_cw(Point((0, -3)))) # On segment
self.assertFalse(ls.is_cw(Point(
(0, -10)))) # At negative boundary beyond segment
self.assertFalse(ls.is_cw(Point((0, -5)))) # Endpoint of segment
self.assertFalse(ls.is_cw(Point((0, 0)))) # Endpoint of segment
def test_is_cw1(self):
"""
Test corner cases for horizontal segment starting at origin.
Test tag: <tc>#tests#LineSegment.is_cw</tc>
"""
ls = LineSegment(Point((0, 0)), Point((5, 0)))
self.assertFalse(ls.is_cw(Point(
(10, 0)))) # At positive boundary beyond segment
self.assertFalse(ls.is_cw(Point((3, 0)))) # On segment
self.assertFalse(ls.is_cw(Point(
(-10, 0)))) # At negative boundary beyond segment
self.assertFalse(ls.is_cw(Point((0, 0)))) # Endpoint of segment
self.assertFalse(ls.is_cw(Point((5, 0)))) # Endpoint of segment
def test_is_ccw3(self):
"""
Test corner cases for non-axis-aligned segment not through origin.
Test tag: <tc>#tests#LineSegment.is_ccw</tc>
"""
ls = LineSegment(Point((0, 1)), Point((5, 6)))
self.assertFalse(ls.is_ccw(Point(
(10, 11)))) # At positive boundary beyond segment
self.assertFalse(ls.is_ccw(Point((3, 4)))) # On segment
self.assertFalse(ls.is_ccw(Point(
(-10, -9)))) # At negative boundary beyond segment
self.assertFalse(ls.is_ccw(Point((0, 1)))) # Endpoint of segment
self.assertFalse(ls.is_ccw(Point((5, 6)))) # Endpoint of segment
def test_is_cw2(self):
"""
Test corner cases for vertical segment ending at origin.
Test tag: <tc>#tests#LineSegment.is_cw</tc>
"""
ls = LineSegment(Point((0, -5)), Point((0, 0)))
self.assertFalse(ls.is_cw(
Point((0, 10)))) # At positive boundary beyond segment
self.assertFalse(ls.is_cw(Point((0, -3)))) # On segment
self.assertFalse(ls.is_cw(
Point((0, -10)))) # At negative boundary beyond segment
self.assertFalse(ls.is_cw(Point((0, -5)))) # Endpoint of segment
self.assertFalse(ls.is_cw(Point((0, 0)))) # Endpoint of segment
def test_get_swap1(self):
"""
Tests corner cases.
Test tag: <tc>#tests#LineSegment.get_swap</tc>
"""
ls = LineSegment(Point((0, 0)), Point((10, 0)))
swap = ls.get_swap()
self.assertEquals(ls.p1, swap.p2)
self.assertEquals(ls.p2, swap.p1)
ls = LineSegment(Point((-5, 0)), Point((5, 0)))
swap = ls.get_swap()
self.assertEquals(ls.p1, swap.p2)
self.assertEquals(ls.p2, swap.p1)
ls = LineSegment(Point((0, 0)), Point((0, 0)))
swap = ls.get_swap()
self.assertEquals(ls.p1, swap.p2)
self.assertEquals(ls.p2, swap.p1)
ls = LineSegment(Point((5, 5)), Point((5, 5)))
swap = ls.get_swap()
self.assertEquals(ls.p1, swap.p2)
self.assertEquals(ls.p2, swap.p1)
