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# This Source Code Form is subject to the terms of the Mozilla Public
# License, v. 2.0. If a copy of the MPL was not distributed with this
import json
import os
import six
from mozunit import main
from mozbuild.backend.clangd import ClangdBackend
from mozbuild.backend.static_analysis import StaticAnalysisBackend
from mozbuild.compilation.database import CompileDBBackend
from mozbuild.test.backend.common import BackendTester
class TestCompileDBBackends(BackendTester):
def perform_check(self, compile_commands_path, topsrcdir, topobjdir):
self.assertTrue(os.path.exists(compile_commands_path))
compile_db = json.loads(open(compile_commands_path, "r").read())
# Verify that we have the same number of items
self.assertEqual(len(compile_db), 4)
expected_db = [
{
"directory": topobjdir,
"command": "clang -o /dev/null -c -ferror-limit=0 {}/bar.c".format(
topsrcdir
),
"file": "{}/bar.c".format(topsrcdir),
},
{
"directory": topobjdir,
"command": "clang -o /dev/null -c -ferror-limit=0 {}/foo.c".format(
topsrcdir
),
"file": "{}/foo.c".format(topsrcdir),
},
{
"directory": topobjdir,
"command": "clang++ -o /dev/null -c -ferror-limit=0 {}/baz.cpp".format(
topsrcdir
),
"file": "{}/baz.cpp".format(topsrcdir),
},
{
"directory": topobjdir,
"command": "clang++ -o /dev/null -c -ferror-limit=0 {}/qux.cpp".format(
topsrcdir
),
"file": "{}/qux.cpp".format(topsrcdir),
},
]
# Verify item consistency against `expected_db`
six.assertCountEqual(self, compile_db, expected_db)
def test_database(self):
"""Ensure we can generate a `compile_commands.json` and that is correct."""
env = self._consume("database", CompileDBBackend)
compile_commands_path = os.path.join(env.topobjdir, "compile_commands.json")
self.perform_check(compile_commands_path, env.topsrcdir, env.topobjdir)
def test_clangd(self):
"""Ensure we can generate a `compile_commands.json` and that is correct.
in order to be used by ClandBackend"""
env = self._consume("database", ClangdBackend)
compile_commands_path = os.path.join(
env.topobjdir, "clangd", "compile_commands.json"
)
self.perform_check(compile_commands_path, env.topsrcdir, env.topobjdir)
def test_static_analysis(self):
"""Ensure we can generate a `compile_commands.json` and that is correct.
in order to be used by StaticAnalysisBackend"""
env = self._consume("database", StaticAnalysisBackend)
compile_commands_path = os.path.join(
env.topobjdir, "static-analysis", "compile_commands.json"
)
self.perform_check(compile_commands_path, env.topsrcdir, env.topobjdir)
if __name__ == "__main__":
main()