tests: add support for inline doctests in test files
This adds doctest like syntax to .t files, that can be interleaved with regular
shell code:
$ echo -n a > file
>>> print open('file').read()
a
>>> open('file', 'a').write('b')
$ cat file
ab
The syntax is exactly the same as regular doctests, so multiline statements
look like this:
>>> for i in range(3):
... print i
0
1
2
Each block has its own context, i.e.:
>>> x = 0
>>> print x
0
$ echo 'foo'
foo
>>> print x
will result in a NameError.
Errors are displayed in standard doctest format:
>>> print 'foo'
bar
--- /home/idan/dev/hg/default/tests/test-test.t
+++ /home/idan/dev/hg/default/tests/test-test.t.err
@@ -2,3 +2,16 @@
> >>> print 'foo'
> bar
> EOF
+ **********************************************************************
+ File "/tmp/tmps8X_0ohg-tst", line 1, in tmps8X_0ohg-tst
+ Failed example:
+ print 'foo'
+ Expected:
+ bar
+ Got:
+ foo
+ **********************************************************************
+ 1 items had failures:
+ 1 of 1 in tmps8X_0ohg-tst
+ ***Test Failed*** 1 failures.
+ [1]
As for the implementation, it's quite simple: when the test runner sees a line
starting with '>>>' it converts it, and all subsequent lines until the next
line that begins with '$' to a 'python -m heredoctest <<EOF' call with the
proper heredoc to follow. So if we have this test file:
>>> for c in 'abcd':
... print c
a
b
c
d
$ echo foo
foo
It gets converted to:
$ python -m heredoctest <<EOF
> >>> for c in 'abcd':
> ... print c
> a
> b
> c
> d
> EOF
$ echo foo
foo
And then processed like every other test file by converting it to a sh script.
[ original upstream message ]
#!/usr/bin/env python
"""This does HTTP GET requests given a host:port and path and returns
a subset of the headers plus the body of the result."""
import httplib, sys, re
try:
import msvcrt, os
msvcrt.setmode(sys.stdout.fileno(), os.O_BINARY)
msvcrt.setmode(sys.stderr.fileno(), os.O_BINARY)
except ImportError:
pass
headers = [h.lower() for h in sys.argv[3:]]
conn = httplib.HTTPConnection(sys.argv[1])
conn.request("GET", sys.argv[2])
response = conn.getresponse()
print response.status, response.reason
for h in headers:
if response.getheader(h, None) is not None:
print "%s: %s" % (h, response.getheader(h))
print
data = response.read()
sys.stdout.write(data)
if 200 <= response.status <= 299:
sys.exit(0)
sys.exit(1)