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).
The ipdoctest machinery must handle multiline examples gracefully.
0 1 2 3 4 5 6 7 8 9
Multiline examples that define functions and print output.
In [8]: f(1) Out[8]: 2
In [10]: g(1) x is: 1
In [11]: g(‘hello’) x is: hello
Multiline examples with blank lines.
In [13]: h(5) Out[13]: 25
In [14]: h(1) Out[14]: -1
In [15]: h(0) Out[15]: -1
ipdoctest must handle simple inputs
In [1]: 1 Out[1]: 1
In [2]: print 1 1