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import os
from clang.cindex import Config
if 'CLANG_LIBRARY_PATH' in os.environ:
Config.set_library_path(os.environ['CLANG_LIBRARY_PATH'])
from clang.cindex import CompilationDatabase
from clang.cindex import CompilationDatabaseError
from clang.cindex import CompileCommands
from clang.cindex import CompileCommand
import os
import gc
import unittest
import sys
from .util import skip_if_no_fspath
from .util import str_to_path
kInputsDir = os.path.join(os.path.dirname(__file__), 'INPUTS')
@unittest.skipIf(sys.platform == 'win32', "TODO: Fix these tests on Windows")
class TestCDB(unittest.TestCase):
def test_create_fail(self):
"""Check we fail loading a database with an assertion"""
path = os.path.dirname(__file__)
with self.assertRaises(CompilationDatabaseError) as cm:
cdb = CompilationDatabase.fromDirectory(path)
e = cm.exception
self.assertEqual(e.cdb_error,
CompilationDatabaseError.ERROR_CANNOTLOADDATABASE)
def test_create(self):
"""Check we can load a compilation database"""
cdb = CompilationDatabase.fromDirectory(kInputsDir)
def test_lookup_succeed(self):
"""Check we get some results if the file exists in the db"""
cdb = CompilationDatabase.fromDirectory(kInputsDir)
cmds = cdb.getCompileCommands('/home/john.doe/MyProject/project.cpp')
self.assertNotEqual(len(cmds), 0)
@skip_if_no_fspath
def test_lookup_succeed_pathlike(self):
"""Same as test_lookup_succeed, but with PathLikes"""
cdb = CompilationDatabase.fromDirectory(str_to_path(kInputsDir))
cmds = cdb.getCompileCommands(str_to_path('/home/john.doe/MyProject/project.cpp'))
self.assertNotEqual(len(cmds), 0)
def test_all_compilecommand(self):
"""Check we get all results from the db"""
cdb = CompilationDatabase.fromDirectory(kInputsDir)
cmds = cdb.getAllCompileCommands()
self.assertEqual(len(cmds), 3)
expected = [
{ 'wd': '/home/john.doe/MyProject',
'file': '/home/john.doe/MyProject/project.cpp',
'line': ['clang++', '-o', 'project.o', '-c',
'/home/john.doe/MyProject/project.cpp']},
{ 'wd': '/home/john.doe/MyProjectA',
'file': '/home/john.doe/MyProject/project2.cpp',
'line': ['clang++', '-o', 'project2.o', '-c',
'/home/john.doe/MyProject/project2.cpp']},
{ 'wd': '/home/john.doe/MyProjectB',
'file': '/home/john.doe/MyProject/project2.cpp',
'line': ['clang++', '-DFEATURE=1', '-o', 'project2-feature.o', '-c',
'/home/john.doe/MyProject/project2.cpp']},
]
for i in range(len(cmds)):
self.assertEqual(cmds[i].directory, expected[i]['wd'])
self.assertEqual(cmds[i].filename, expected[i]['file'])
for arg, exp in zip(cmds[i].arguments, expected[i]['line']):
self.assertEqual(arg, exp)
def test_1_compilecommand(self):
"""Check file with single compile command"""
cdb = CompilationDatabase.fromDirectory(kInputsDir)
file = '/home/john.doe/MyProject/project.cpp'
cmds = cdb.getCompileCommands(file)
self.assertEqual(len(cmds), 1)
self.assertEqual(cmds[0].directory, os.path.dirname(file))
self.assertEqual(cmds[0].filename, file)
expected = [ 'clang++', '-o', 'project.o', '-c',
'/home/john.doe/MyProject/project.cpp']
for arg, exp in zip(cmds[0].arguments, expected):
self.assertEqual(arg, exp)
def test_2_compilecommand(self):
"""Check file with 2 compile commands"""
cdb = CompilationDatabase.fromDirectory(kInputsDir)
cmds = cdb.getCompileCommands('/home/john.doe/MyProject/project2.cpp')
self.assertEqual(len(cmds), 2)
expected = [
{ 'wd': '/home/john.doe/MyProjectA',
'line': ['clang++', '-o', 'project2.o', '-c',
'/home/john.doe/MyProject/project2.cpp']},
{ 'wd': '/home/john.doe/MyProjectB',
'line': ['clang++', '-DFEATURE=1', '-o', 'project2-feature.o', '-c',
'/home/john.doe/MyProject/project2.cpp']}
]
for i in range(len(cmds)):
self.assertEqual(cmds[i].directory, expected[i]['wd'])
for arg, exp in zip(cmds[i].arguments, expected[i]['line']):
self.assertEqual(arg, exp)
def test_compilecommand_iterator_stops(self):
"""Check that iterator stops after the correct number of elements"""
cdb = CompilationDatabase.fromDirectory(kInputsDir)
count = 0
for cmd in cdb.getCompileCommands('/home/john.doe/MyProject/project2.cpp'):
count += 1
self.assertLessEqual(count, 2)
def test_compilationDB_references(self):
"""Ensure CompilationsCommands are independent of the database"""
cdb = CompilationDatabase.fromDirectory(kInputsDir)
cmds = cdb.getCompileCommands('/home/john.doe/MyProject/project.cpp')
del cdb
gc.collect()
workingdir = cmds[0].directory
def test_compilationCommands_references(self):
"""Ensure CompilationsCommand keeps a reference to CompilationCommands"""
cdb = CompilationDatabase.fromDirectory(kInputsDir)
cmds = cdb.getCompileCommands('/home/john.doe/MyProject/project.cpp')
del cdb
cmd0 = cmds[0]
del cmds
gc.collect()
workingdir = cmd0.directory
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