Function test_if_else

pythonwhat/test_funcs/test_compound_statement.py:27–86

Test parts of the if statement. This test function will allow you to extract parts of a specific if statement and perform a set of tests specifically on these parts. A for loop consists of three potential parts: the condition test, :code:`test`, which specifies the condition of the if s

(state, index=1, test=None, body=None, orelse=None)

def test_if_else(state, index=1, test=None, body=None, orelse=None):
    """Test parts of the if statement.

    This test function will allow you to extract parts of a specific if statement and perform a set of tests
    specifically on these parts. A for loop consists of three potential parts: the condition test, :code:`test`,
    which specifies the condition of the if statement, the :code:`body`, which is what's executed if the condition is
    True and a else part, :code:`orelse`, which will be executed if the condition is not True.::

        if 5 == 3:
            print("success")
        else:
            print("fail")

    Has :code:`5 == 3` as the condition test, :code:`print("success")` as the body and :code:`print("fail")` as the else part.

    Args:
      index (int): index of the function call to be checked. Defaults to 1.
      test: this argument holds the part of code that will be ran to check the condition test of the if statement.
        It should be passed as a lambda expression or a function definition. The functions that are ran should
        be other pythonwhat test functions, and they will be tested specifically on only the condition test of
        the if statement.
      body: this argument holds the part of code that will be ran to check the body of the if statement.
        It should be passed as a lambda expression or a function definition. The functions that are ran should
        be other pythonwhat test functions, and they will be tested specifically on only the body of
        the if statement.
      orelse: this argument holds the part of code that will be ran to check the else part of the if statement.
        It should be passed as a lambda expression or a function definition. The functions that are ran should
        be other pythonwhat test functions, and they will be tested specifically on only the else part of
        the if statement.

    :Example:

        Student code::

            a = 12
            if a > 3:
                print('test %d' % a)

        Solution code::

            a = 4
            if a > 3:
                print('test %d' % a)

        SCT::

            test_if_else(1,
                body = test_expression_output(
                        extra_env = { 'a': 5 }
                        incorrect_msg = "Print out the correct things"))

        This SCT will pass as :code:`test_expression_output()` is ran on the body of the if statement and it will output
        the same thing in the solution as in the student code.
    """
    state = check_node(
        state, "if_elses", index - 1, typestr="{{ordinal}} if expression"
    )
    multi(check_part(state, "test", "condition"), test)