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bpython/bpython/test/test_preprocess.py at master · chakwing/bpython · GitHub
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test_preprocess.py
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# encoding: utf-8
from
code
import
compile_command
as
compiler
from
functools
import
partial
import
difflib
import
inspect
import
re
from
bpython
.
curtsiesfrontend
.
interpreter
import
code_finished_will_parse
from
bpython
.
curtsiesfrontend
.
preprocess
import
preprocess
from
bpython
.
test
import
unittest
from
bpython
.
test
.
fodder
import
original
,
processed
skip
=
unittest
.
skip
preproc
=
partial
(
preprocess
,
compiler
=
compiler
)
def
get_fodder_source
(
test_name
):
pattern
=
r'#StartTest-%s\n(.*?)#EndTest'
%
(
test_name
,)
orig
,
xformed
=
[
re
.
search
(
pattern
,
inspect
.
getsource
(
module
),
re
.
DOTALL
)
for
module
in
[
original
,
processed
]]
if
not
orig
:
raise
ValueError
(
"Can't locate test %s in original fodder file"
%
(
test_name
,))
if
not
xformed
:
raise
ValueError
(
"Can't locate test %s in processed fodder file"
%
(
test_name
,))
return
orig
.
group
(
1
),
xformed
.
group
(
1
)
class
TestPreprocessing
(
unittest
.
TestCase
):
def
assertCompiles
(
self
,
source
):
finished
,
parsable
=
code_finished_will_parse
(
source
,
compiler
)
return
finished
and
parsable
def
test_indent_empty_lines_nops
(
self
):
self
.
assertEqual
(
preproc
(
'hello'
),
'hello'
)
self
.
assertEqual
(
preproc
(
'hello
\n
goodbye'
),
'hello
\n
goodbye'
)
self
.
assertEqual
(
preproc
(
'a
\n
b
\n
c
\n
'
),
'a
\n
b
\n
c
\n
'
)
def
assertShowWhitespaceEqual
(
self
,
a
,
b
):
self
.
assertEqual
(
a
,
b
,
''
.
join
(
difflib
.
context_diff
(
a
.
replace
(
' '
,
'~'
).
splitlines
(
True
),
b
.
replace
(
' '
,
'~'
).
splitlines
(
True
),
fromfile
=
'actual'
,
tofile
=
'expected'
,
n
=
5
)))
def
assertDefinitionIndented
(
self
,
obj
):
name
=
obj
.
__name__
obj2
=
getattr
(
processed
,
name
)
orig
=
inspect
.
getsource
(
obj
)
xformed
=
inspect
.
getsource
(
obj2
)
self
.
assertShowWhitespaceEqual
(
preproc
(
orig
),
xformed
)
self
.
assertCompiles
(
xformed
)
def
assertLinesIndented
(
self
,
test_name
):
orig
,
xformed
=
get_fodder_source
(
test_name
)
self
.
assertShowWhitespaceEqual
(
preproc
(
orig
),
xformed
)
self
.
assertCompiles
(
xformed
)
def
assertIndented
(
self
,
obj_or_name
):
if
isinstance
(
obj_or_name
,
str
):
self
.
assertLinesIndented
(
obj_or_name
)
else
:
self
.
assertDefinitionIndented
(
obj_or_name
)
def
test_empty_line_between_methods
(
self
):
self
.
assertIndented
(
original
.
BlankLineBetweenMethods
)
def
test_empty_line_within_class
(
self
):
self
.
assertIndented
(
original
.
BlankLineInFunction
)
def
test_blank_lines_in_for_loop
(
self
):
self
.
assertIndented
(
'blank_lines_in_for_loop'
)
@
skip
(
"More advanced technique required: need to try compiling and "
"backtracking"
)
def
test_blank_line_in_try_catch
(
self
):
self
.
assertIndented
(
'blank_line_in_try_catch'
)
@
skip
(
"More advanced technique required: need to try compiling and "
"backtracking"
)
def
test_blank_line_in_try_catch_else
(
self
):
self
.
assertIndented
(
'blank_line_in_try_catch_else'
)
def
test_blank_trailing_line
(
self
):
self
.
assertIndented
(
'blank_trailing_line'
)
def
test_tabs
(
self
):
self
.
assertIndented
(
original
.
tabs
)
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