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"""Tests for the ipdoctest machinery itself.
Note: in a file named test_X, functions whose only test is their docstring (as
a doctest) and which have no test functionality of their own, should be called
'doctest_foo' instead of 'test_foo', otherwise they get double-counted (the
empty function call is counted as a test, which just inflates tests numbers
artificially).
"""
def doctest_simple():
"""ipdoctest must handle simple inputs
In [1]: 1
Out[1]: 1
In [2]: print(1)
1
"""
def doctest_multiline1():
"""The ipdoctest machinery must handle multiline examples gracefully.
In [2]: for i in range(4):
...: print(i)
...:
0
1
2
3
"""
def doctest_multiline2():
"""Multiline examples that define functions and print output.
In [7]: def f(x):
...: return x+1
...:
In [8]: f(1)
Out[8]: 2
In [9]: def g(x):
...: print('x is:',x)
...:
In [10]: g(1)
x is: 1
In [11]: g('hello')
x is: hello
"""
def doctest_multiline3():
"""Multiline examples with blank lines.
In [12]: def h(x):
....: if x>1:
....: return x**2
....: # To leave a blank line in the input, you must mark it
....: # with a comment character:
....: #
....: # otherwise the doctest parser gets confused.
....: else:
....: return -1
....:
In [13]: h(5)
Out[13]: 25
In [14]: h(1)
Out[14]: -1
In [15]: h(0)
Out[15]: -1
"""
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