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from clang.cindex import CompilationDatabase
from clang.cindex import CompilationDatabaseError
from clang.cindex import CompileCommands
from clang.cindex import CompileCommand
import os
import gc
kInputsDir = os.path.join(os.path.dirname(__file__), 'INPUTS')
def test_create_fail():
"""Check we fail loading a database with an assertion"""
path = os.path.dirname(__file__)
try:
cdb = CompilationDatabase.fromDirectory(path)
except CompilationDatabaseError as e:
assert e.cdb_error == CompilationDatabaseError.ERROR_CANNOTLOADDATABASE
else:
assert False
def test_create():
"""Check we can load a compilation database"""
cdb = CompilationDatabase.fromDirectory(kInputsDir)
def test_lookup_fail():
"""Check file lookup failure"""
cdb = CompilationDatabase.fromDirectory(kInputsDir)
assert cdb.getCompileCommands('file_do_not_exist.cpp') == None
def test_lookup_succeed():
"""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')
assert len(cmds) != 0
def test_1_compilecommand():
"""Check file with single compile command"""
cdb = CompilationDatabase.fromDirectory(kInputsDir)
cmds = cdb.getCompileCommands('/home/john.doe/MyProject/project.cpp')
assert len(cmds) == 1
assert cmds[0].directory == '/home/john.doe/MyProject'
expected = [ 'clang++', '-o', 'project.o', '-c',
'/home/john.doe/MyProject/project.cpp']
for arg, exp in zip(cmds[0].arguments, expected):
assert arg == exp
def test_2_compilecommand():
"""Check file with 2 compile commands"""
cdb = CompilationDatabase.fromDirectory(kInputsDir)
cmds = cdb.getCompileCommands('/home/john.doe/MyProject/project2.cpp')
assert 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)):
assert cmds[i].directory == expected[i]['wd']
for arg, exp in zip(cmds[i].arguments, expected[i]['line']):
assert arg == exp
def test_compilecommand_iterator_stops():
"""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
assert count <= 2
def test_compilationDB_references():
"""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():
"""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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