Python Assignment.func Examples

Example #1

def test_Assignment():
    # Here we just do things to show they don't error
    Assignment(x, y)
    Assignment(x, 0)
    Assignment(A, mat)
    Assignment(A[1, 0], 0)
    Assignment(A[1, 0], x)
    Assignment(B[i], x)
    Assignment(B[i], 0)
    a = Assignment(x, y)
    assert a.func(*a.args) == a
    assert a.op == ':='
    # Here we test things to show that they error
    # Matrix to scalar
    raises(ValueError, lambda: Assignment(B[i], A))
    raises(ValueError, lambda: Assignment(B[i], mat))
    raises(ValueError, lambda: Assignment(x, mat))
    raises(ValueError, lambda: Assignment(x, A))
    raises(ValueError, lambda: Assignment(A[1, 0], mat))
    # Scalar to matrix
    raises(ValueError, lambda: Assignment(A, x))
    raises(ValueError, lambda: Assignment(A, 0))
    # Non-atomic lhs
    raises(TypeError, lambda: Assignment(mat, A))
    raises(TypeError, lambda: Assignment(0, x))
    raises(TypeError, lambda: Assignment(x * x, 1))
    raises(TypeError, lambda: Assignment(A + A, mat))
    raises(TypeError, lambda: Assignment(B, 0))

Example #2

File: 55007_test_ast.py Project: archit-p/Handwritten-Equation-Solver

def test_Assignment():
    x, y = symbols("x, y")
    A = MatrixSymbol('A', 3, 1)
    mat = Matrix([1, 2, 3])
    B = IndexedBase('B')
    n = symbols("n", integer=True)
    i = Idx("i", n)
    # Here we just do things to show they don't error
    Assignment(x, y)
    Assignment(x, 0)
    Assignment(A, mat)
    Assignment(A[1, 0], 0)
    Assignment(A[1, 0], x)
    Assignment(B[i], x)
    Assignment(B[i], 0)
    a = Assignment(x, y)
    assert a.func(*a.args) == a
    # Here we test things to show that they error
    # Matrix to scalar
    raises(ValueError, lambda: Assignment(B[i], A))
    raises(ValueError, lambda: Assignment(B[i], mat))
    raises(ValueError, lambda: Assignment(x, mat))
    raises(ValueError, lambda: Assignment(x, A))
    raises(ValueError, lambda: Assignment(A[1, 0], mat))
    # Scalar to matrix
    raises(ValueError, lambda: Assignment(A, x))
    raises(ValueError, lambda: Assignment(A, 0))
    # Non-atomic lhs
    raises(TypeError, lambda: Assignment(mat, A))
    raises(TypeError, lambda: Assignment(0, x))
    raises(TypeError, lambda: Assignment(x * x, 1))
    raises(TypeError, lambda: Assignment(A + A, mat))
    raises(TypeError, lambda: Assignment(B, 0))

    assert Relational(x, y, ':=') == Assignment(x, y)

Example #3

File: test_ast.py Project: Lenqth/sympy

def test_Assignment():
    # Here we just do things to show they don't error
    Assignment(x, y)
    Assignment(x, 0)
    Assignment(A, mat)
    Assignment(A[1,0], 0)
    Assignment(A[1,0], x)
    Assignment(B[i], x)
    Assignment(B[i], 0)
    a = Assignment(x, y)
    assert a.func(*a.args) == a
    assert a.op == ':='
    # Here we test things to show that they error
    # Matrix to scalar
    raises(ValueError, lambda: Assignment(B[i], A))
    raises(ValueError, lambda: Assignment(B[i], mat))
    raises(ValueError, lambda: Assignment(x, mat))
    raises(ValueError, lambda: Assignment(x, A))
    raises(ValueError, lambda: Assignment(A[1,0], mat))
    # Scalar to matrix
    raises(ValueError, lambda: Assignment(A, x))
    raises(ValueError, lambda: Assignment(A, 0))
    # Non-atomic lhs
    raises(TypeError, lambda: Assignment(mat, A))
    raises(TypeError, lambda: Assignment(0, x))
    raises(TypeError, lambda: Assignment(x*x, 1))
    raises(TypeError, lambda: Assignment(A + A, mat))
    raises(TypeError, lambda: Assignment(B, 0))

Example #4

File: test_ast.py Project: AlexanderKulka/sympy

def test_Assignment():
    x, y = symbols("x, y")
    A = MatrixSymbol('A', 3, 1)
    mat = Matrix([1, 2, 3])
    B = IndexedBase('B')
    n = symbols("n", integer=True)
    i = Idx("i", n)
    # Here we just do things to show they don't error
    Assignment(x, y)
    Assignment(x, 0)
    Assignment(A, mat)
    Assignment(A[1,0], 0)
    Assignment(A[1,0], x)
    Assignment(B[i], x)
    Assignment(B[i], 0)
    a = Assignment(x, y)
    assert a.func(*a.args) == a
    # Here we test things to show that they error
    # Matrix to scalar
    raises(ValueError, lambda: Assignment(B[i], A))
    raises(ValueError, lambda: Assignment(B[i], mat))
    raises(ValueError, lambda: Assignment(x, mat))
    raises(ValueError, lambda: Assignment(x, A))
    raises(ValueError, lambda: Assignment(A[1,0], mat))
    # Scalar to matrix
    raises(ValueError, lambda: Assignment(A, x))
    raises(ValueError, lambda: Assignment(A, 0))
    # Non-atomic lhs
    raises(TypeError, lambda: Assignment(mat, A))
    raises(TypeError, lambda: Assignment(0, x))
    raises(TypeError, lambda: Assignment(x*x, 1))
    raises(TypeError, lambda: Assignment(A + A, mat))
    raises(TypeError, lambda: Assignment(B, 0))

    assert Relational(x, y, ':=') == Assignment(x, y)