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python-devtools/tests/test_expr_render.py at lightbg · dlitz/python-devtools · GitHub
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import
asyncio
import
sys
import
pytest
from
devtools
import
Debug
,
debug
from
.
utils
import
normalise_output
def
foobar
(
a
,
b
,
c
):
return
a
+
b
+
c
def
test_simple
():
a
=
[
1
,
2
,
3
]
v
=
debug
.
format
(
len
(
a
))
s
=
normalise_output
(
str
(
v
))
# print(s)
assert
(
'tests/test_expr_render.py:<line no> test_simple
\n
'
' len(a): 3 (int)'
)
==
s
def
test_subscription
():
a
=
{
1
:
2
}
v
=
debug
.
format
(
a
[
1
])
s
=
normalise_output
(
str
(
v
))
assert
(
'tests/test_expr_render.py:<line no> test_subscription
\n
'
' a[1]: 2 (int)'
)
==
s
def
test_exotic_types
():
aa
=
[
1
,
2
,
3
]
v
=
debug
.
format
(
sum
(
aa
),
1
==
2
,
1
<
2
,
1
<<
2
,
't'
if
True
else
'f'
,
1
or
2
,
[
a
for
a
in
aa
],
{
a
for
a
in
aa
},
{
a
:
a
+
1
for
a
in
aa
},
(
a
for
a
in
aa
),
)
s
=
normalise_output
(
str
(
v
))
print
(
f'
\n
---
\n
{
v
}
\n
---'
)
# Generator expression source changed in 3.8 to include parentheses, see:
# https://github.com/gristlabs/asttokens/pull/50
# https://bugs.python.org/issue31241
genexpr_source
=
'a for a in aa'
if
sys
.
version_info
[:
2
]
>
(
3
,
7
):
genexpr_source
=
f'(
{
genexpr_source
}
)'
assert
(
"tests/test_expr_render.py:<line no> test_exotic_types
\n
"
" sum(aa): 6 (int)
\n
"
" 1 == 2: False (bool)
\n
"
" 1 < 2: True (bool)
\n
"
" 1 << 2: 4 (int)
\n
"
" 't' if True else 'f': 't' (str) len=1
\n
"
" 1 or 2: 1 (int)
\n
"
" [a for a in aa]: [1, 2, 3] (list) len=3
\n
"
" {a for a in aa}: {1, 2, 3} (set) len=3
\n
"
" {a: a + 1 for a in aa}: {
\n
"
" 1: 2,
\n
"
" 2: 3,
\n
"
" 3: 4,
\n
"
" } (dict) len=3
\n
"
f"
{
genexpr_source
}
: (
\n
"
" 1,
\n
"
" 2,
\n
"
" 3,
\n
"
" ) (generator)"
)
==
s
def
test_newline
():
v
=
debug
.
format
(
foobar
(
1
,
2
,
3
))
s
=
normalise_output
(
str
(
v
))
# print(s)
assert
(
'tests/test_expr_render.py:<line no> test_newline
\n
'
' foobar(1, 2, 3): 6 (int)'
)
==
s
def
test_trailing_bracket
():
v
=
debug
.
format
(
foobar
(
1
,
2
,
3
)
)
s
=
normalise_output
(
str
(
v
))
# print(s)
assert
(
'tests/test_expr_render.py:<line no> test_trailing_bracket
\n
'
' foobar(1, 2, 3): 6 (int)'
)
==
s
def
test_multiline
():
v
=
debug
.
format
(
foobar
(
1
,
2
,
3
)
)
s
=
normalise_output
(
str
(
v
))
# print(s)
assert
(
'tests/test_expr_render.py:<line no> test_multiline
\n
'
' foobar(1, 2, 3): 6 (int)'
)
==
s
def
test_multiline_trailing_bracket
():
v
=
debug
.
format
(
foobar
(
1
,
2
,
3
))
s
=
normalise_output
(
str
(
v
))
# print(s)
assert
(
'tests/test_expr_render.py:<line no> test_multiline_trailing_bracket
\n
'
' foobar(1, 2, 3 ): 6 (int)'
)
==
s
@
pytest
.
mark
.
skipif
(
sys
.
version_info
<
(
3
,
6
),
reason
=
'kwarg order is not guaranteed for 3.5'
)
def
test_kwargs
():
v
=
debug
.
format
(
foobar
(
1
,
2
,
3
),
a
=
6
,
b
=
7
)
s
=
normalise_output
(
str
(
v
))
assert
(
'tests/test_expr_render.py:<line no> test_kwargs
\n
'
' foobar(1, 2, 3): 6 (int)
\n
'
' a: 6 (int)
\n
'
' b: 7 (int)'
)
==
s
@
pytest
.
mark
.
skipif
(
sys
.
version_info
<
(
3
,
6
),
reason
=
'kwarg order is not guaranteed for 3.5'
)
def
test_kwargs_multiline
():
v
=
debug
.
format
(
foobar
(
1
,
2
,
3
),
a
=
6
,
b
=
7
)
s
=
normalise_output
(
str
(
v
))
assert
(
'tests/test_expr_render.py:<line no> test_kwargs_multiline
\n
'
' foobar(1, 2, 3): 6 (int)
\n
'
' a: 6 (int)
\n
'
' b: 7 (int)'
)
==
s
def
test_multiple_trailing_lines
():
v
=
debug
.
format
(
foobar
(
1
,
2
,
3
),
)
s
=
normalise_output
(
str
(
v
))
assert
(
'tests/test_expr_render.py:<line no> test_multiple_trailing_lines
\n
foobar( 1, 2, 3 ): 6 (int)'
)
==
s
def
test_very_nested_last_statement
():
def
func
():
return
debug
.
format
(
abs
(
abs
(
abs
(
abs
(
-
1
)
)
)
)
)
v
=
func
()
# check only the original code is included in the warning
s
=
normalise_output
(
str
(
v
))
assert
s
==
(
'tests/test_expr_render.py:<line no> test_very_nested_last_statement.<locals>.func
\n
'
' abs( abs( abs( abs( -1 ) ) ) ): 1 (int)'
)
def
test_syntax_warning
():
def
func
():
return
debug
.
format
(
abs
(
abs
(
abs
(
abs
(
abs
(
-
1
)
)
)
)
)
)
v
=
func
()
# check only the original code is included in the warning
s
=
normalise_output
(
str
(
v
))
assert
s
==
(
'tests/test_expr_render.py:<line no> test_syntax_warning.<locals>.func
\n
'
' abs( abs( abs( abs( abs( -1 ) ) ) ) ): 1 (int)'
)
def
test_no_syntax_warning
():
# exceed the 4 extra lines which are normally checked
debug_
=
Debug
(
warnings
=
False
)
def
func
():
return
debug_
.
format
(
abs
(
abs
(
abs
(
abs
(
abs
(
-
1
)
)
)
)
)
)
v
=
func
()
s
=
normalise_output
(
str
(
v
))
assert
s
==
(
'tests/test_expr_render.py:<line no> test_no_syntax_warning.<locals>.func
\n
'
' abs( abs( abs( abs( abs( -1 ) ) ) ) ): 1 (int)'
)
def
test_await
():
async
def
foo
():
return
1
async
def
bar
():
return
debug
.
format
(
await
foo
())
loop
=
asyncio
.
new_event_loop
()
v
=
loop
.
run_until_complete
(
bar
())
loop
.
close
()
s
=
normalise_output
(
str
(
v
))
assert
(
'tests/test_expr_render.py:<line no> test_await.<locals>.bar
\n
'
' await foo(): 1 (int)'
)
==
s
def
test_other_debug_arg
():
debug
.
timer
()
v
=
debug
.
format
([
1
,
2
])
# check only the original code is included in the warning
s
=
normalise_output
(
str
(
v
))
assert
s
==
(
'tests/test_expr_render.py:<line no> test_other_debug_arg
\n
'
' [1, 2] (list) len=2'
)
def
test_other_debug_arg_not_literal
():
debug
.
timer
()
x
=
1
y
=
2
v
=
debug
.
format
([
x
,
y
])
s
=
normalise_output
(
str
(
v
))
assert
s
==
(
'tests/test_expr_render.py:<line no> test_other_debug_arg_not_literal
\n
'
' [x, y]: [1, 2] (list) len=2'
)
def
test_executing_failure
():
debug
.
timer
()
x
=
1
y
=
2
# executing fails inside a pytest assert ast the AST is modified
assert
normalise_output
(
str
(
debug
.
format
([
x
,
y
])))
==
(
'tests/test_expr_render.py:<line no> test_executing_failure '
'(executing failed to find the calling node)
\n
'
' [1, 2] (list) len=2'
)
def
test_format_inside_error
():
debug
.
timer
()
x
=
1
y
=
2
try
:
raise
RuntimeError
(
debug
.
format
([
x
,
y
]))
except
RuntimeError
as
e
:
v
=
str
(
e
)
s
=
normalise_output
(
str
(
v
))
assert
s
==
(
'tests/test_expr_render.py:<line no> test_format_inside_error
\n
'
' [x, y]: [1, 2] (list) len=2'
)
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