140 lines
4.6 KiB
Python
140 lines
4.6 KiB
Python
# python -m pytest addons/test/test-misra.py
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import json
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import pytest
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import sys
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try:
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from cStringIO import StringIO
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except ImportError:
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from io import StringIO
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import subprocess
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class CapturingStdout(object):
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def __enter__(self):
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self._stdout = sys.stdout
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sys.stdout = self._stringio = StringIO()
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self.captured = []
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return self
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def __exit__(self, *args):
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self.captured.extend(self._stringio.getvalue().splitlines())
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del self._stringio # free up some memory
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sys.stdout = self._stdout
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class CapturingStderr(object):
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def __enter__(self):
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self._stderr = sys.stderr
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sys.stderr = self._stringio = StringIO()
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self.captured = []
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return self
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def __exit__(self, *args):
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self.captured.extend(self._stringio.getvalue().splitlines())
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del self._stringio # free up some memory
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sys.stderr = self._stderr
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TEST_SOURCE_FILES = ['./addons/test/misra-test.c']
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def setup_module(module):
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for f in TEST_SOURCE_FILES:
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p = subprocess.Popen(["./cppcheck", "--dump", "--quiet", f])
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p.communicate()
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if p.returncode != 0:
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raise OSError("cppcheck returns error code: %d" % p.returncode)
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subprocess.Popen(["sync"])
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def teardown_module(module):
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for f in TEST_SOURCE_FILES:
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subprocess.Popen(["rm", "-f", f + ".dump"])
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@pytest.fixture
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def checker():
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from addons.misra import MisraChecker, MisraSettings, get_args
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args = get_args()
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settings = MisraSettings(args)
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return MisraChecker(settings)
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def test_loadRuleTexts_structure(checker):
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checker.loadRuleTexts("./addons/test/assets/misra_rules_structure.txt")
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assert(checker.ruleTexts.get(101, None) is None)
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assert(checker.ruleTexts[102].text == "Rule text.")
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assert(checker.ruleTexts.get(103, None) is None)
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def test_loadRuleTexts_empty_lines(checker):
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checker.loadRuleTexts("./addons/test/assets/misra_rules_empty_lines.txt")
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assert(len(checker.ruleTexts) == 3)
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assert(len(checker.ruleTexts[102].text) == len("Rule text."))
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def test_loadRuleTexts_mutiple_lines(checker):
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checker.loadRuleTexts("./addons/test/assets/misra_rules_multiple_lines.txt")
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assert(checker.ruleTexts[101].text == "Multiple lines text.")
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assert(checker.ruleTexts[102].text == "Multiple lines text.")
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assert(checker.ruleTexts[103].text == "Multiple lines text.")
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assert(checker.ruleTexts[104].text == "Should")
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assert(checker.ruleTexts[105].text == "Should")
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assert(checker.ruleTexts[106].text == "Should")
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def test_verifyRuleTexts(checker):
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checker.loadRuleTexts("./addons/test/assets/misra_rules_dummy.txt")
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with CapturingStdout() as output:
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checker.verifyRuleTexts()
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captured = ''.join(output.captured)
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assert("21.3" not in captured)
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assert("1.3" in captured)
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def test_rules_misra_severity(checker):
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checker.loadRuleTexts("./addons/test/assets/misra_rules_dummy.txt")
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assert(checker.ruleTexts[1004].misra_severity == 'Mandatory')
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assert(checker.ruleTexts[401].misra_severity == 'Required')
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assert(checker.ruleTexts[1505].misra_severity == 'Advisory')
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assert(checker.ruleTexts[2104].misra_severity == '')
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def test_extra_output_from_misra_py(checker):
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# Extra data generated by misra.py addon are available only through --cli option.
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checker.loadRuleTexts("./addons/test/assets/misra_rules_dummy.txt")
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with CapturingStderr() as output:
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checker.parseDump("./addons/test/misra-test.c.dump")
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captured = ''.join(output.captured)
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assert("Mandatory" in captured)
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assert("Required" in captured)
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assert("Advisory" in captured)
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sys.argv.append("--cli")
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checker.loadRuleTexts("./addons/test/assets/misra_rules_dummy.txt")
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with CapturingStdout() as output:
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checker.parseDump("./addons/test/misra-test.c.dump")
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sys.argv.remove("--cli")
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json_output = {}
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for line in output.captured:
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try:
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json_line = json.loads(line)
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json_output[json_line['errorId']] = json_line
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except ValueError:
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pass
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assert("Mandatory" in json_output['c2012-10.4']['extra'])
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assert("Required" in json_output['c2012-21.3']['extra'])
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assert("Advisory" in json_output['c2012-20.1']['extra'])
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def test_rules_cppcheck_severity(checker):
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checker.loadRuleTexts("./addons/test/assets/misra_rules_dummy.txt")
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with CapturingStderr() as output:
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checker.parseDump("./addons/test/misra-test.c.dump")
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captured = ''.join(output.captured)
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assert("(error)" not in captured)
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assert("(warning)" not in captured)
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assert("(style)" in captured)
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