def test_ops(self): s0 = Surface( self.surface_valid ) s0.assign(1.0) for v in s0: self.assertEqual(v , 1.0) s0 += 1 for v in s0: self.assertEqual(v , 2.0) s0 *= 2 for v in s0: self.assertEqual(v , 4.0) s1 = s0 + 4 for v in s1: self.assertEqual(v , 8.0) s2 = Surface( self.surface_valid2 ) with self.assertRaises(ValueError): s3 = s1 + s2 s4 = s1 + s0 for v in s4: self.assertEqual(v , 12.0) s5 = s4 / 12 for v in s5: self.assertEqual(v , 1.0)
def test_header_equal(self): s0 = Surface( self.surface_valid ) s1 = Surface( self.surface_valid2 ) s2 = s0.copy( ) self.assertTrue( s0.headerEqual( s0 )) self.assertFalse( s0.headerEqual( s1 )) self.assertTrue( s0.headerEqual( s2 ))
def test_create_new(self): with self.assertRaises(ValueError): s = Surface(None, 1, 1, 1) with self.assertRaises(IOError): s = Surface(50, 1, 1, 1) # values copied from irap surface_small ny,nx = 20,30 xinc,yinc = 50.0, 50.0 xstart,ystart = 463325.5625, 7336963.5 angle = -65.0 s_args = (None, nx, ny, xinc, yinc, xstart, ystart, angle) s = Surface(*s_args) self.assertEqual(ny*nx, len(s)) self.assertEqual(nx, s.getNX()) self.assertEqual(ny, s.getNY()) small = Surface (self.surface_small) self.assertTrue(small.headerEqual(s)) valid = Surface (self.surface_valid) self.assertFalse(valid.headerEqual(s)) self.assertNotEqual(s, small) idx = 0 for i in range(nx): for j in range(ny): s[idx] = small[idx] idx += 1 self.assertEqual(s, small)
def test_write(self): with TestAreaContext("surface/write"): s0 = Surface( self.surface_valid ) s0.write( "new_surface.irap") s1 = Surface( "new_surface.irap") self.assertTrue( s1 == s0 ) s0[0] = 99 self.assertFalse( s1 == s0 )
def test_copy(self): with TestAreaContext("surface/copy"): s0 = Surface( self.surface_valid ) s1 = s0.copy( ) self.assertTrue( s1 == s0 ) s1[0] = 99 self.assertFalse( s1 == s0 ) del s0 self.assertEqual( s1[0] , 99) s2 = s1.copy( copy_data = False ) self.assertEqual( s2[0] , 0.0 ) self.assertEqual( s2[10] , 0.0 ) self.assertEqual( s2[100] , 0.0 )
def test_xyz(self): s = Surface(self.surface_valid2) self.assertEqual(s.getXYZ(i=5,j=13), s.getXYZ(idx=642)) x,y,z = s.getXYZ(i=5,j=13) self.assertFloatEqual(464041.44804, x) self.assertFloatEqual(7336966.309535, y) self.assertFloatEqual(0.0051, z) self.assertAlmostEqualList(s.getXYZ(i=6,j=13), s.getXYZ(idx=643)) self.assertFloatEqual(-0.0006, s.getXYZ(i=6,j=13)[2]) # z value
def _small_surf(self): # values copied from irap surface_small ny, nx = 20, 30 xinc, yinc = 50.0, 50.0 xstart, ystart = 463325.5625, 7336963.5 angle = -65.0 s_args = (None, nx, ny, xinc, yinc, xstart, ystart, angle) return Surface(*s_args)
def test_ops2(self): s0 = Surface( self.surface_small ) surface_list = [] for i in range(10): s = s0.copy() for j in range(len(s)): s[j] = random.random() surface_list.append(s) mean = s0.copy( copy_data = False ) for s in surface_list: mean += s mean /= len(surface_list) std = s0.copy( copy_data = False ) for s in surface_list: std += (s - mean) * (s - mean) std /= (len(surface_list) - 1)
def test_xy(self): ny,nx = 20,30 xinc,yinc = 50.0, 50.0 xstart,ystart = 463325.5625, 7336963.5 angle = 0 s_args = (None, nx, ny, xinc, yinc, xstart, ystart, angle) s = Surface(*s_args) xy = s.getXY(0) self.assertEqual((xstart, ystart), xy) xy = s.getXY(1) self.assertEqual((xstart+xinc, ystart), xy) xy = s.getXY(nx) self.assertEqual((xstart, ystart+yinc), xy) xy = s.getXY(-1) self.assertEqual((xstart+xinc*(nx-1), ystart+yinc*(ny-1)), xy)
def test_sqrt(self): s0 = Surface( self.surface_small ) s0.assign(4) self.assertEqual(20*30, len(s0)) s_sqrt = s0.sqrt( ) for i in range(len(s0)): self.assertEqual(s0[i] , 4) self.assertEqual(s_sqrt[i] , 2) s0.inplaceSqrt( ) self.assertTrue( s0 == s_sqrt )
def test_create(self): with self.assertRaises(IOError): s = Surface("File/does/not/exist") with self.assertRaises(ValueError): s = Surface(self.surface_short) with self.assertRaises(ValueError): s = Surface(self.surface_long) s = Surface( self.surface_valid ) self.assertEqual( s.getNX( ) , 49 ) self.assertEqual( s.getNY( ) , 79 ) self.assertEqual( len(s) , 49*79 ) with self.assertRaises(IndexError): v = s[49 * 79] with self.assertRaises(TypeError): v = s["KEY"] self.assertEqual( s[0] , 0.0051 ) self.assertEqual( s[-1] , -0.0014 ) with self.assertRaises(IndexError): s[49*79] = 787 s[0] = 10 self.assertEqual( s[0] , 10 ) s[-1] = 77 self.assertEqual( s[len(s) - 1] , 77 )