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_all_compilecommand(): """Check we get all results from the db""" cdb = CompilationDatabase.fromDirectory(kInputsDir) cmds = cdb.getAllCompileCommands() assert 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)): assert cmds[i].directory == expected[i]['wd'] assert cmds[i].filename == expected[i]['file'] for arg, exp in zip(cmds[i].arguments, expected[i]['line']): assert arg == exp def test_1_compilecommand(): """Check file with single compile command""" cdb = CompilationDatabase.fromDirectory(kInputsDir) file = '/home/john.doe/MyProject/project.cpp' cmds = cdb.getCompileCommands(file) assert len(cmds) == 1 assert cmds[0].directory == os.path.dirname(file) assert 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): 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