/usr/lib/python3/dist-packages/importmagic/importer_test.py is in python3-importmagic 0.1.7-1.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
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from textwrap import dedent
from importmagic.importer import Imports, get_update, update_imports
from importmagic.symbols import Scope
def test_get_update(index):
src = dedent("""
# header comment
import sys
print(os.unknown('/'))
""").strip()
unresolved, unreferenced = Scope.from_source(src).find_unresolved_and_unreferenced_symbols()
start_line, end_line, new_block = get_update(src, index, unresolved, unreferenced)
assert dedent("""\
import os
""").lstrip() == new_block
def test_deep_import_of_unknown_symbol(index):
src = dedent("""
print(os.unknown('/'))
""").strip()
unresolved, unreferenced = Scope.from_source(src).find_unresolved_and_unreferenced_symbols()
assert unresolved == set(['os.unknown'])
new_src = update_imports(src, index, unresolved, unreferenced)
assert dedent("""
import os
print(os.unknown('/'))
""").strip() == new_src.strip()
def test_import_future_preserved(index):
src = 'from __future__ import absolute_import'
unresolved, unreferenced = Scope.from_source(src).find_unresolved_and_unreferenced_symbols()
assert not unresolved
assert not unreferenced
new_src = update_imports(src, index, unresolved, unreferenced).strip()
assert src == new_src
def test_update_imports_inserts_initial_imports(index):
src = dedent("""
print(os.path.basename('sys/foo'))
print(sys.path[0])
print(basename('sys/foo'))
print(path.basename('sys/foo'))
""").strip()
unresolved, unreferenced = Scope.from_source(src).find_unresolved_and_unreferenced_symbols()
assert unresolved == set(['os.path.basename', 'sys.path', 'basename', 'path.basename'])
new_src = update_imports(src, index, unresolved, unreferenced)
assert dedent("""
import os.path
import sys
from os import path
from os.path import basename
print(os.path.basename('sys/foo'))
print(sys.path[0])
print(basename('sys/foo'))
print(path.basename('sys/foo'))
""").strip() == new_src.strip()
def test_update_imports_inserts_imports(index):
src = dedent("""
import sys
print(os.path.basename("sys/foo"))
print(sys.path[0])
""").strip()
unresolved, unreferenced = Scope.from_source(src).find_unresolved_and_unreferenced_symbols()
assert unresolved == set(['os.path.basename'])
new_src = update_imports(src, index, unresolved, unreferenced)
assert dedent("""
import os.path
import sys
print(os.path.basename("sys/foo"))
print(sys.path[0])
""").strip() == new_src.strip()
def test_update_imports_correctly_aliases(index):
src = dedent('''
print(basename('src/foo'))
''').strip()
unresolved, unreferenced = Scope.from_source(src).find_unresolved_and_unreferenced_symbols()
assert unresolved == set(['basename'])
new_src = update_imports(src, index, unresolved, unreferenced)
assert dedent('''
from os.path import basename
print(basename('src/foo'))
''').strip() == new_src.strip()
def test_parse_imports(index):
src = dedent('''
import os, sys as sys
import sys as sys
from os.path import basename
from os import (
path,
posixpath
)
def main():
pass
''').strip()
unresolved, unreferenced = Scope.from_source(src).find_unresolved_and_unreferenced_symbols()
new_src = update_imports(src, index, unresolved, unreferenced)
assert dedent(r'''
def main():
pass
''').strip() == new_src.strip()
def test_imports_inserted_after_preamble(index):
src = dedent('''
# Comment
"""Docstring"""
def func(n):
print(basename(n))
''').strip()
unresolved, unreferenced = Scope.from_source(src).find_unresolved_and_unreferenced_symbols()
new_src = update_imports(src, index, unresolved, unreferenced)
assert dedent('''
# Comment
"""Docstring"""
from os.path import basename
def func(n):
print(basename(n))
''').strip() == new_src.strip()
def test_imports_dont_delete_trailing_comments(index):
src = dedent('''
import sys
# Some function
def func(n):
print(basename(n))
''').strip()
scope = Scope.from_source(src)
new_src = update_imports(src, index, *scope.find_unresolved_and_unreferenced_symbols())
assert dedent('''
from os.path import basename
# Some function
def func(n):
print(basename(n))
''').strip() == new_src.strip()
def test_imports_dont_delete_imports_after_middle_comments(index):
src = dedent('''
import sys
# Some comment
import json
def func(n):
print(basename(n))
print(json)
''').strip()
scope = Scope.from_source(src)
new_src = update_imports(src, index, *scope.find_unresolved_and_unreferenced_symbols())
assert dedent('''
import json
from os.path import basename
def func(n):
print(basename(n))
print(json)
''').strip() == new_src.strip()
def test_imports_removes_unused(index):
src = dedent('''
import sys
def func(n):
print(basename(n))
''').strip()
scope = Scope.from_source(src)
new_src = update_imports(src, index, *scope.find_unresolved_and_unreferenced_symbols())
assert dedent('''
from os.path import basename
def func(n):
print(basename(n))
''').strip() == new_src.strip()
def test_imports_module_assignment(index):
src = dedent('''
def func(n):
sys.stderr = n
''').strip()
scope = Scope.from_source(src)
new_src = update_imports(src, index, *scope.find_unresolved_and_unreferenced_symbols())
assert dedent('''
import sys
def func(n):
sys.stderr = n
''').strip() == new_src.strip()
def test_import_as_kept(index):
src = dedent('''
import time as taim
taim.sleep(0)
''').strip()
scope = Scope.from_source(src)
new_src = update_imports(src, index, *scope.find_unresolved_and_unreferenced_symbols())
assert dedent('''
import time as taim
taim.sleep(0)
''').strip() == new_src.strip()
def test_from_import_as(index):
src = dedent('''
from clastic import MiddleWare as WebMiddleWare
''').strip()
scope = Scope.from_source(src)
new_src = update_imports(src, index, *scope.find_unresolved_and_unreferenced_symbols())
assert src == new_src.strip()
def test_importer_wrapping_escaped(index):
Imports.set_style(multiline='backslash', max_columns=80)
src = dedent('''
from injector import Binder, Injector, InstanceProvider, Key, MappingKey, Module, Scope, ScopeDecorator, SequenceKey, inject, provides, singleton
from waffle import stuff
Binder, Injector, InstanceProvider, Key, MappingKey, Module, Scope, ScopeDecorator, SequenceKey, inject, provides, singleton, stuff
''').strip()
expected_src = dedent('''
from injector import Binder, Injector, InstanceProvider, Key, MappingKey, \\
Module, Scope, ScopeDecorator, SequenceKey, inject, provides, singleton
from waffle import stuff
Binder, Injector, InstanceProvider, Key, MappingKey, Module, Scope, ScopeDecorator, SequenceKey, inject, provides, singleton, stuff
''').strip()
scope = Scope.from_source(src)
new_src = update_imports(src, index, *scope.find_unresolved_and_unreferenced_symbols()).strip()
assert expected_src == new_src
def test_importer_wrapping_escaped_longer(index):
Imports.set_style(multiline='backslash', max_columns=80)
src = dedent('''
from injector import Binder, Injector, InstanceProvider, Key, MappingKey, Module, Scope, ScopeDecorator, SequenceKey, inject, provides, singleton, more, things, imported, foo, bar, baz, cux, lorem, ipsum
from waffle import stuff
Binder, Injector, InstanceProvider, Key, MappingKey, Module, Scope, ScopeDecorator, SequenceKey, inject, provides, singleton, more, things, imported, foo, bar, baz, cux, lorem, ipsum, stuff
''').strip()
expected_src = dedent('''
from injector import Binder, Injector, InstanceProvider, Key, MappingKey, \\
Module, Scope, ScopeDecorator, SequenceKey, bar, baz, cux, foo, imported, \\
inject, ipsum, lorem, more, provides, singleton, things
from waffle import stuff
Binder, Injector, InstanceProvider, Key, MappingKey, Module, Scope, ScopeDecorator, SequenceKey, inject, provides, singleton, more, things, imported, foo, bar, baz, cux, lorem, ipsum, stuff
''').strip()
scope = Scope.from_source(src)
new_src = update_imports(src, index, *scope.find_unresolved_and_unreferenced_symbols()).strip()
assert expected_src == new_src
def test_importer_wrapping_parentheses(index):
Imports.set_style(multiline='parentheses', max_columns=80)
src = dedent('''
from injector import Binder, Injector, InstanceProvider, Key, MappingKey, Module, Scope, ScopeDecorator, SequenceKey, inject, provides, singleton
from waffle import stuff
Binder, Injector, InstanceProvider, Key, MappingKey, Module, Scope, ScopeDecorator, SequenceKey, inject, provides, singleton, stuff
''').strip()
expected_src = dedent('''
from injector import (Binder, Injector, InstanceProvider, Key, MappingKey,
Module, Scope, ScopeDecorator, SequenceKey, inject, provides, singleton)
from waffle import stuff
Binder, Injector, InstanceProvider, Key, MappingKey, Module, Scope, ScopeDecorator, SequenceKey, inject, provides, singleton, stuff
''').strip()
scope = Scope.from_source(src)
new_src = update_imports(src, index, *scope.find_unresolved_and_unreferenced_symbols()).strip()
assert expected_src == new_src
def test_importer_wrapping_parentheses_longer(index):
Imports.set_style(multiline='parentheses', max_columns=80)
src = dedent('''
from injector import Binder, Injector, InstanceProvider, Key, MappingKey, Module, Scope, ScopeDecorator, SequenceKey, inject, provides, singleton, more, things, imported, foo, bar, baz, cux, lorem, ipsum
from waffle import stuff
Binder, Injector, InstanceProvider, Key, MappingKey, Module, Scope, ScopeDecorator, SequenceKey, inject, provides, singleton, more, things, imported, foo, bar, baz, cux, lorem, ipsum, stuff
''').strip()
expected_src = dedent('''
from injector import (Binder, Injector, InstanceProvider, Key, MappingKey,
Module, Scope, ScopeDecorator, SequenceKey, bar, baz, cux, foo, imported,
inject, ipsum, lorem, more, provides, singleton, things)
from waffle import stuff
Binder, Injector, InstanceProvider, Key, MappingKey, Module, Scope, ScopeDecorator, SequenceKey, inject, provides, singleton, more, things, imported, foo, bar, baz, cux, lorem, ipsum, stuff
''').strip()
scope = Scope.from_source(src)
new_src = update_imports(src, index, *scope.find_unresolved_and_unreferenced_symbols()).strip()
assert expected_src == new_src
def test_importer_wrapping_colums(index):
Imports.set_style(multiline='parentheses', max_columns=120)
src = dedent('''
from injector import Binder, Injector, InstanceProvider, Key, MappingKey, Module, Scope, ScopeDecorator, SequenceKey, inject, provides, singleton, more, things, imported, foo, bar, baz, cux, lorem, ipsum
from waffle import stuff
Binder, Injector, InstanceProvider, Key, MappingKey, Module, Scope, ScopeDecorator, SequenceKey, inject, provides, singleton, more, things, imported, foo, bar, baz, cux, lorem, ipsum, stuff
''').strip()
expected_src = dedent('''
from injector import (Binder, Injector, InstanceProvider, Key, MappingKey, Module, Scope, ScopeDecorator, SequenceKey,
bar, baz, cux, foo, imported, inject, ipsum, lorem, more, provides, singleton, things)
from waffle import stuff
Binder, Injector, InstanceProvider, Key, MappingKey, Module, Scope, ScopeDecorator, SequenceKey, inject, provides, singleton, more, things, imported, foo, bar, baz, cux, lorem, ipsum, stuff
''').strip()
scope = Scope.from_source(src)
new_src = update_imports(src, index, *scope.find_unresolved_and_unreferenced_symbols()).strip()
assert expected_src == new_src
def test_importer_directives_referenced(index):
src = dedent('''
from gevent.monkey import patch_all; patch_all()
# importmagic: manage
import re
import sys
print(os.path.basename('moo'))
''').strip()
expected_src = dedent('''
from gevent.monkey import patch_all; patch_all()
# importmagic: manage
import os.path
print(os.path.basename('moo'))
''').strip()
scope = Scope.from_source(src)
new_src = update_imports(src, index, *scope.find_unresolved_and_unreferenced_symbols()).strip()
assert expected_src == new_src
def test_importer_directives_not_referenced(index):
src = dedent('''
# Make sure the in thread reactor is installed.
from Tribler.Core.Utilities.twisted_thread import reactor
# importmagic: manage
import re
import sys
print(os.path.basename('moo'))
''').strip()
expected_src = dedent('''
# Make sure the in thread reactor is installed.
from Tribler.Core.Utilities.twisted_thread import reactor
# importmagic: manage
import os.path
print(os.path.basename('moo'))
''').strip()
scope = Scope.from_source(src)
new_src = update_imports(src, index, *scope.find_unresolved_and_unreferenced_symbols()).strip()
assert expected_src == new_src
def test_imports_partial_file(index):
src = dedent('''
import re
import sys
a = "
print(
''')
imports = Imports(index, src)
assert imports.update_source() == src
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