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# Licensed to the .NET Foundation under one or more agreements.
# The .NET Foundation licenses this file to you under the Apache 2.0 License.
# See the LICENSE file in the project root for more information.
##
## Test array support by IronPython (System.Array)
##
import unittest
from iptest import IronPythonTestCase, is_cli, is_posix, run_test
if is_cli:
import System
class ArrayTest(IronPythonTestCase):
@unittest.skipUnless(is_cli, 'IronPython specific test')
def test_sanity(self):
# 1-dimension array
array1 = System.Array.CreateInstance(int, 2)
for i in range(2): array1[i] = i * 10
self.assertRaises(IndexError, lambda: array1[2])
array2 = System.Array.CreateInstance(int, 4)
for i in range(2, 6): array2[i - 2] = i * 10
array3 = System.Array.CreateInstance(float, 3)
array3[0] = 2.1
array3[1] = 3.14
array3[2] = 0.11
## __setitem__/__getitem__
System.Array.__setitem__(array3, 2, 0.14)
self.assertEqual(System.Array.__getitem__(array3, 1), 3.14)
self.assertEqual([x for x in System.Array.__getitem__(array3, slice(2))], [2.1, 3.14])
## __repr__
# 2-dimension array
array4 = System.Array.CreateInstance(int, 2, 2)
array4[0, 1] = 1
self.assertTrue(repr(array4).startswith("<2 dimensional Array[int] at"), "bad repr for 2-dimensional array")
# 3-dimension array
array5 = System.Array.CreateInstance(object, 2, 2, 2)
array5[0, 1, 1] = int
self.assertTrue(repr(array5).startswith("<3 dimensional Array[object] at "), "bad repr for 3-dimensional array")
## index access
self.assertRaises(TypeError, lambda : array5['s'])
def f1(): array5[0, 1] = 0
self.assertRaises(ValueError, f1)
def f2(): array5['s'] = 0
self.assertRaises(TypeError, f2)
## __add__/__mul__
for f in (
lambda a, b : System.Array.__add__(a, b),
lambda a, b : a + b
) :
temp = System.Array.__add__(array1, array2)
result = f(array1, array2)
for i in range(6): self.assertEqual(i * 10, result[i])
self.assertEqual(repr(result), "Array[int]((0, 10, 20, 30, 40, 50))")
result = f(array1, array3)
self.assertEqual(len(result), 2 + 3)
self.assertEqual([x for x in result], [0, 10, 2.1, 3.14, 0.14])
self.assertRaises(NotImplementedError, f, array1, array4)
for f in [
lambda a, x: System.Array.__mul__(a, x),
lambda a, x: array1 * x
]:
self.assertEqual([x for x in f(array1, 4)], [0, 10, 0, 10, 0, 10, 0, 10])
self.assertEqual([x for x in f(array1, 5)], [0, 10, 0, 10, 0, 10, 0, 10, 0, 10])
self.assertEqual([x for x in f(array1, 0)], [])
self.assertEqual([x for x in f(array1, -10)], [])
@unittest.skipUnless(is_cli, 'IronPython specific test')
def test_slice(self):
array1 = System.Array.CreateInstance(int, 20)
for i in range(20): array1[i] = i * i
# positive
array1[::2] = [x * 2 for x in range(10)]
for i in range(0, 20, 2):
self.assertEqual(array1[i], i)
for i in range(1, 20, 2):
self.assertEqual(array1[i], i * i)
# negative: not-same-length
def f(): array1[::2] = [x * 2 for x in range(11)]
self.assertRaises(ValueError, f)
@unittest.skipUnless(is_cli, 'IronPython specific test')
def test_creation(self):
t = System.Array
ti = type(System.Array.CreateInstance(int, 1))
self.assertRaises(TypeError, t, [1, 2])
for x in (ti([1,2]), t[int]([1, 2]), ti([1.5, 2.3])):
self.assertEqual([i for i in x], [1, 2])
t.Reverse(x)
self.assertEqual([i for i in x], [2, 1])
@unittest.skipUnless(is_cli, 'IronPython specific test')
def test_nonzero_lowerbound(self):
a = System.Array.CreateInstance(int, (5,), (5,))
for i in range(5): a[i] = i
self.assertEqual(a[:2], System.Array[int]((0,1)))
self.assertEqual(a[2:], System.Array[int]((2,3,4)))
self.assertEqual(a[2:4], System.Array[int]((2,3)))
self.assertEqual(a[-1], 4)
self.assertEqual(repr(a), 'Array[int]((0, 1, 2, 3, 4))')
a = System.Array.CreateInstance(int, (5,), (15,))
b = System.Array.CreateInstance(int, (5,), (20,))
self.assertEqual(a.Length, b.Length)
for i in range(a.Length):
self.assertEqual(a[i], b[i])
## 5-dimension
a = System.Array.CreateInstance(int, (2,2,2,2,2), (1,2,3,4,5))
self.assertEqual(a[0,0,0,0,0], 0)
for i in range(5):
index = [0,0,0,0,0]
index[i] = 1
a[index[0], index[1], index[2], index[3], index[4]] = i
self.assertEqual(a[index[0], index[1], index[2], index[3], index[4]], i)
for i in range(5):
index = [0,0,0,0,0]
index[i] = 0
a[index[0], index[1], index[2], index[3], index[4]] = i
self.assertEqual(a[index[0], index[1], index[2], index[3], index[4]], i)
def sliceArray(arr, index):
arr[:index]
def sliceArrayAssign(arr, index, val):
arr[:index] = val
self.assertRaises(NotImplementedError, sliceArray, a, 1)
self.assertRaises(NotImplementedError, sliceArray, a, 200)
self.assertRaises(NotImplementedError, sliceArray, a, -200)
self.assertRaises(NotImplementedError, sliceArrayAssign, a, -200, 1)
self.assertRaises(NotImplementedError, sliceArrayAssign, a, 1, 1)
@unittest.skipUnless(is_cli, 'IronPython specific test')
def test_array_type(self):
def type_helper(array_type, instance):
#create the array type
AT = System.Array[array_type]
a0 = AT([])
a1 = AT([instance])
a2 = AT([instance, instance])
a_normal = System.Array.CreateInstance(array_type, 3)
self.assertTrue(str(AT)==str(type(a_normal)))
for i in range(3):
a_normal[i] = instance
self.assertTrue(str(AT)==str(type(a_normal)))
a_multi = System.Array.CreateInstance(array_type, 2, 3)
self.assertTrue(str(AT)==str(type(a_multi)))
for i in range(2):
for j in range(3):
self.assertTrue(str(AT)==str(type(a_multi)))
a_multi[i, j]=instance
self.assertTrue(str(AT)==str(type(a0)))
self.assertTrue(str(AT)==str(type(a0[0:])))
self.assertTrue(str(AT)==str(type(a0[:0])))
self.assertTrue(str(AT)==str(type(a1)))
self.assertTrue(str(AT)==str(type(a1[1:])))
self.assertTrue(str(AT)==str(type(a1[:0])))
self.assertTrue(str(AT)==str(type(a_normal)))
self.assertTrue(str(AT)==str(type(a_normal[:0])))
self.assertTrue(str(AT)==str(type(a_normal[3:])))
self.assertTrue(str(AT)==str(type(a_normal[4:])))
self.assertTrue(str(AT)==str(type(a_normal[1:])))
self.assertTrue(str(AT)==str(type(a_normal[1:1:50])))
self.assertTrue(str(AT)==str(type(a_multi)))
def silly(): a_multi[0:][1:0]
self.assertRaises(NotImplementedError, silly)
self.assertTrue(str(AT)==str(type((a0+a1)[:0])))
type_helper(int, 0)
type_helper(int, 1)
type_helper(int, 100)
type_helper(bool, False)
type_helper(bool, True)
#type_helper(bool, 1)
type_helper(int, 0)
type_helper(int, 1)
type_helper(int, 100)
type_helper(float, 0.0)
type_helper(float, 1.0)
type_helper(float, 3.14)
type_helper(str, "")
type_helper(str, " ")
type_helper(str, "abc")
@unittest.skipUnless(is_cli, 'IronPython specific test')
def test_tuple_indexer(self):
array1 = System.Array.CreateInstance(int, 20, 20)
array1[0,0] = 5
self.assertEqual(array1[0,0], array1[(0,0)])
run_test(__name__)