text: # -*- coding: utf-8 -*-
  import pytest
  from pybind11_tests import numpy_vectorize as m
  
  np = pytest.importorskip("numpy")
  
  
  def test_vectorize(capture):
      assert np.isclose(m.vectorized_func3(np.array(3 + 7j)), [6 + 14j])
  
      for f in [m.vectorized_func, m.vectorized_func2]:
          with capture:
              assert np.isclose(f(1, 2, 3), 6)
          assert capture == "my_func(x:int=1, y:float=2, z:float=3)"
          with capture:
              assert np.isclose(f(np.array(1), np.array(2), 3), 6)
          assert capture == "my_func(x:int=1, y:float=2, z:float=3)"
          with capture:
              assert np.allclose(f(np.array([1, 3]), np.array([2, 4]), 3), [6, 36])
          assert capture == """
              my_func(x:int=1, y:float=2, z:float=3)
              my_func(x:int=3, y:float=4, z:float=3)
          """
          with capture:
              a = np.array([[1, 2], [3, 4]], order='F')
              b = np.array([[10, 20], [30, 40]], order='F')
              c = 3
              result = f(a, b, c)
              assert np.allclose(result, a * b * c)
              assert result.flags.f_contiguous
          # All inputs are F order and full or singletons, so we the result is in col-major order:
          assert capture == """
              my_func(x:int=1, y:float=10, z:float=3)
              my_func(x:int=3, y:float=30, z:float=3)
              my_func(x:int=2, y:float=20, z:float=3)
              my_func(x:int=4, y:float=40, z:float=3)
          """
          with capture:
              a, b, c = np.array([[1, 3, 5], [7, 9, 11]]), np.array([[2, 4, 6], [8, 10, 12]]), 3
              assert np.allclose(f(a, b, c), a * b * c)
          assert capture == """
              my_func(x:int=1, y:float=2, z:float=3)
              my_func(x:int=3, y:float=4, z:float=3)
              my_func(x:int=5, y:float=6, z:float=3)
              my_func(x:int=7, y:float=8, z:float=3)
              my_func(x:int=9, y:float=10, z:float=3)
              my_func(x:int=11, y:float=12, z:float=3)
          """
          with capture:
              a, b, c = np.array([[1, 2, 3], [4, 5, 6]]), np.array([2, 3, 4]), 2
              assert np.allclose(f(a, b, c), a * b * c)
          assert capture == """
              my_func(x:int=1, y:float=2, z:float=2)
              my_func(x:int=2, y:float=3, z:float=2)
              my_func(x:int=3, y:float=4, z:float=2)
              my_func(x:int=4, y:float=2, z:float=2)
              my_func(x:int=5, y:float=3, z:float=2)
              my_func(x:int=6, y:float=4, z:float=2)
          """
          with capture:
              a, b, c = np.array([[1, 2, 3], [4, 5, 6]]), np.array([[2], [3]]), 2
              assert np.allclose(f(a, b, c), a * b * c)
          assert capture == """
              my_func(x:int=1, y:float=2, z:float=2)
              my_func(x:int=2, y:float=2, z:float=2)
              my_func(x:int=3, y:float=2, z:float=2)
              my_func(x:int=4, y:float=3, z:float=2)
              my_func(x:int=5, y:float=3, z:float=2)
              my_func(x:int=6, y:float=3, z:float=2)
          """
          with capture:
              a, b, c = np.array([[1, 2, 3], [4, 5, 6]], order='F'), np.array([[2], [3]]), 2
              assert np.allclose(f(a, b, c), a * b * c)
          assert capture == """
              my_func(x:int=1, y:float=2, z:float=2)
              my_func(x:int=2, y:float=2, z:float=2)
              my_func(x:int=3, y:float=2, z:float=2)
              my_func(x:int=4, y:float=3, z:float=2)
              my_func(x:int=5, y:float=3, z:float=2)
              my_func(x:int=6, y:float=3, z:float=2)
          """
          with capture:
              a, b, c = np.array([[1, 2, 3], [4, 5, 6]])[::, ::2], np.array([[2], [3]]), 2
              assert np.allclose(f(a, b, c), a * b * c)
          assert capture == """
              my_func(x:int=1, y:float=2, z:float=2)
              my_func(x:int=3, y:float=2, z:float=2)
              my_func(x:int=4, y:float=3, z:float=2)
              my_func(x:int=6, y:float=3, z:float=2)
          """
          with capture:
              a, b, c = np.array([[1, 2, 3], [4, 5, 6]], order='F')[::, ::2], np.array([[2], [3]]), 2
              assert np.allclose(f(a, b, c), a * b * c)
          assert capture == """
              my_func(x:int=1, y:float=2, z:float=2)
              my_func(x:int=3, y:float=2, z:float=2)
              my_func(x:int=4, y:float=3, z:float=2)
              my_func(x:int=6, y:float=3, z:float=2)
          """
  
  
  def test_type_selection():
      assert m.selective_func(np.array([1], dtype=np.int32)) == "Int branch taken."
      assert m.selective_func(np.array([1.0], dtype=np.float32)) == "Float branch taken."
      assert m.selective_func(np.array([1.0j], dtype=np.complex64)) == "Complex float branch taken."
  
  
  def test_docs(doc):
      assert doc(m.vectorized_func) == """
          vectorized_func(arg0: numpy.ndarray[numpy.int32], arg1: numpy.ndarray[numpy.float32], arg2: numpy.ndarray[numpy.float64]) -> object
      """  # noqa: E501 line too long
  
  
  def test_trivial_broadcasting():
      trivial, vectorized_is_trivial = m.trivial, m.vectorized_is_trivial
  
      assert vectorized_is_trivial(1, 2, 3) == trivial.c_trivial
      assert vectorized_is_trivial(np.array(1), np.array(2), 3) == trivial.c_trivial
      assert vectorized_is_trivial(np.array([1, 3]), np.array([2, 4]), 3) == trivial.c_trivial
      assert trivial.c_trivial == vectorized_is_trivial(
          np.array([[1, 3, 5], [7, 9, 11]]), np.array([[2, 4, 6], [8, 10, 12]]), 3)
      assert vectorized_is_trivial(
          np.array([[1, 2, 3], [4, 5, 6]]), np.array([2, 3, 4]), 2) == trivial.non_trivial
      assert vectorized_is_trivial(
          np.array([[1, 2, 3], [4, 5, 6]]), np.array([[2], [3]]), 2) == trivial.non_trivial
      z1 = np.array([[1, 2, 3, 4], [5, 6, 7, 8]], dtype='int32')
      z2 = np.array(z1, dtype='float32')
      z3 = np.array(z1, dtype='float64')
      assert vectorized_is_trivial(z1, z2, z3) == trivial.c_trivial
      assert vectorized_is_trivial(1, z2, z3) == trivial.c_trivial
      assert vectorized_is_trivial(z1, 1, z3) == trivial.c_trivial
      assert vectorized_is_trivial(z1, z2, 1) == trivial.c_trivial
      assert vectorized_is_trivial(z1[::2, ::2], 1, 1) == trivial.non_trivial
      assert vectorized_is_trivial(1, 1, z1[::2, ::2]) == trivial.c_trivial
      assert vectorized_is_trivial(1, 1, z3[::2, ::2]) == trivial.non_trivial
      assert vectorized_is_trivial(z1, 1, z3[1::4, 1::4]) == trivial.c_trivial
  
      y1 = np.array(z1, order='F')
      y2 = np.array(y1)
      y3 = np.array(y1)
      assert vectorized_is_trivial(y1, y2, y3) == trivial.f_trivial
      assert vectorized_is_trivial(y1, 1, 1) == trivial.f_trivial
      assert vectorized_is_trivial(1, y2, 1) == trivial.f_trivial
      assert vectorized_is_trivial(1, 1, y3) == trivial.f_trivial
      assert vectorized_is_trivial(y1, z2, 1) == trivial.non_trivial
      assert vectorized_is_trivial(z1[1::4, 1::4], y2, 1) == trivial.f_trivial
      assert vectorized_is_trivial(y1[1::4, 1::4], z2, 1) == trivial.c_trivial
  
      assert m.vectorized_func(z1, z2, z3).flags.c_contiguous
      assert m.vectorized_func(y1, y2, y3).flags.f_contiguous
      assert m.vectorized_func(z1, 1, 1).flags.c_contiguous
      assert m.vectorized_func(1, y2, 1).flags.f_contiguous
      assert m.vectorized_func(z1[1::4, 1::4], y2, 1).flags.f_contiguous
      assert m.vectorized_func(y1[1::4, 1::4], z2, 1).flags.c_contiguous
  
  
  def test_passthrough_arguments(doc):
      assert doc(m.vec_passthrough) == (
          "vec_passthrough(" + ", ".join([
              "arg0: float",
              "arg1: numpy.ndarray[numpy.float64]",
              "arg2: numpy.ndarray[numpy.float64]",
              "arg3: numpy.ndarray[numpy.int32]",
              "arg4: int",
              "arg5: m.numpy_vectorize.NonPODClass",
              "arg6: numpy.ndarray[numpy.float64]"]) + ") -> object")
  
      b = np.array([[10, 20, 30]], dtype='float64')
      c = np.array([100, 200])  # NOT a vectorized argument
      d = np.array([[1000], [2000], [3000]], dtype='int')
      g = np.array([[1000000, 2000000, 3000000]], dtype='int')  # requires casting
      assert np.all(
          m.vec_passthrough(1, b, c, d, 10000, m.NonPODClass(100000), g) ==
          np.array([[1111111, 2111121, 3111131],
                    [1112111, 2112121, 3112131],
                    [1113111, 2113121, 3113131]]))
  
  
  def test_method_vectorization():
      o = m.VectorizeTestClass(3)
      x = np.array([1, 2], dtype='int')
      y = np.array([[10], [20]], dtype='float32')
      assert np.all(o.method(x, y) == [[14, 15], [24, 25]])
  
  
  def test_array_collapse():
      assert not isinstance(m.vectorized_func(1, 2, 3), np.ndarray)
      assert not isinstance(m.vectorized_func(np.array(1), 2, 3), np.ndarray)
      z = m.vectorized_func([1], 2, 3)
      assert isinstance(z, np.ndarray)
      assert z.shape == (1, )
      z = m.vectorized_func(1, [[[2]]], 3)
      assert isinstance(z, np.ndarray)
      assert z.shape == (1, 1, 1)
  
  
  def test_vectorized_noreturn():
      x = m.NonPODClass(0)
      assert x.value == 0
      m.add_to(x, [1, 2, 3, 4])
      assert x.value == 10
      m.add_to(x, 1)
      assert x.value == 11
      m.add_to(x, [[1, 1], [2, 3]])
      assert x.value == 18
  