Initil commit

LICENCE

+Copyright (c) 2016 mj3-16 Team (and contributers)
+
+Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the "Software"), to deal in the Software without restriction, including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.

MANIFEST.in

+recursive-include mjtest *.py
+README.mdwn
+LICENCE

README.mdwn

+MJTest
+======
+
+A test runner (and suite) for the MiniJava compiler (and its parts) written in the compiler lab of the KIT.
+
+It's heavily inspired by Sisyphus (and uses some of its code)
+
+__Please contribute to the test cases__
+
+Test modes
+----------
+The test cases are divided in 3 'modes':
+- __syntax__: Test cases that just check whether `./run --parsecheck` accepts as correct or rejects
+ them.
+- __semantic__: Test cases that check semantic checking of MiniJava programs
+- __exec__: Test cases that check the correct compilation of MiniJava programs.
+
+_Only the syntax mode is currently usable, but the other three will follow._
+
+The test different test cases for each mode are located in a folder with the same name.
+The default directory that contains all test folders is `tests`.
+
+The different types a test cases are differentiated by their file endings.
+
+
+Test types for the syntax mode
+------------------------------
+
+<table>
+<tr><th>File ending(s) of test cases</th><th>Expected behaviour to complete a test of this type</th></tr>
+<tr>
+    <td><code>.valid.mj</code><code>.mj</code>
+    <td>Return code is <code>0</code>, i.e. the MiniJava is accepted as syntactically correct</td>
+</tr>
+<tr>
+    <td><code>.invalid.mj</code>
+    <td>Return code is <code>&gt; 0</code> and the error output contains the word <code>error</code></td>
+</tr>
+</table>
+
+
+Test runner
+-----------
+
+### Requirements
+The following programs are required (and executable by simply calling their names).
+- `python3` (at least Python3.3)
+- `javac` and `java`
+
+### Installation
+
+Just clone `mjtest` and install it via `pip3`.
+
+```sh
+git clone https://github.com/mj3-16/mjtest
+cd mjtest
+sudo pip3 install .
+```
+
+### Usage
+Output of the `mjtest --help`
+
+```
+usage: mjtest [-h] [--tmp_dir] [--test_dir] [--only_incorrect_tests]
+              [--parallel] [--timeout] [--report_dir] [--log LOG]
+              {syntax,semantic,exec} MJ_RUN_CMD
+
+MiniJava test runner
+
+positional arguments:
+  {syntax,semantic,exec}
+                        What do you want to test?
+  MJ_RUN_CMD            Command to run your MiniJava implementation, e.g.
+                        `mj/run`
+
+optional arguments:
+  -h, --help            show this help message and exit
+  --tmp_dir             Used temporary directory
+  --test_dir            Directory that contains all test cases, default is the
+                        'tests' directory
+  --only_incorrect_tests
+                        Only run the tests that were incorrect the last run
+  --parallel            Run the tests in parallel
+  --timeout             Abort a program after TIMEOUT seconds
+  --report_dir          Directory to store the reports in, default is
+                        'reports'
+  --log LOG             Logging level (error, warn, info or debug)
+```
+
+### Example usage
+Assuming you want to run the syntax tests and your MiniJava base folder is `~/code/mj` then run
+```
+mjtest syntax `~/code/mj/run --lextest`
+```
+This will…
+- … create reports in a folder named after the current date and time inside the `reports` folder
+- … output something like
+```
+```
+- … log that some test cases were executed correctly
+- … return with an error code of `0` if all tests executed correct
+
+Contributions
+-------------
+__Please contribute to this test runner and the accompanied test cases.__
+
+To add test cases just open a pull request. The test cases must have unique names (in each mode folder).
+
+Licence
+-------
+MIT, see LICENCE file for more information.

mjtest/__init__.py

+VERSION = "0.42"
\ No newline at end of file

mjtest/cli.py

+import logging
+from pprint import pprint
+import sys
+import mjtest.util.utils
+import argparse
+from mjtest.environment import TestMode, Environment, TEST_MODES
+from mjtest.test.tests import TestSuite
+
+# adapted from http://stackoverflow.com/a/8527629
+class LogLevelChoices(argparse.Action):
+    CHOICES = ["error", "warn", "info", "debug"]
+    def __call__(self, parser, namespace, values, option_string=None):
+        if values:
+            for value in values:
+                if value not in self.CHOICES:
+                    message = ("invalid choice: {0!r} (choose from {1})"
+                               .format(value,
+                                       ', '.join([repr(action)
+                                                  for action in self.CHOICES])))
+
+                    raise argparse.ArgumentError(self, message)
+            setattr(namespace, self.dest, values)
+
+if True:#__name__ == '__main__':
+    parser = argparse.ArgumentParser(description="MiniJava test runner", add_help=True)
+    parser.add_argument("mode",
+                        choices=TEST_MODES,
+                        help="What do you want to test?")
+    parser.add_argument("mj_run_cmd",
+                        metavar="MJ_RUN_CMD",
+                        help="Command to run your MiniJava implementation, e.g. `mj/run`")
+    parser.add_argument("--tmp_dir", action="store_const", default="", const="tmp_dir",
+                        help="Used temporary directory")
+    parser.add_argument("--test_dir", action="store_const", default="", const="test_dir",
+                        help="Directory that contains all test cases, default is the 'tests' directory")
+    parser.add_argument("--only_incorrect_tests", action="store_true", default=False,
+                        help="Only run the tests that were incorrect the last run")
+    parser.add_argument("--parallel", action="store_true", default=False,
+                        help="Run the tests in parallel")
+    parser.add_argument("--timeout", action="store_const", default=30, const="timeout",
+                        help="Abort a program after TIMEOUT seconds")
+    parser.add_argument("--report_dir", action="store_const", default="", const="report_dir",
+                        help="Directory to store the reports in, default is 'reports'")
+    parser.add_argument("--log_level", action=LogLevelChoices, default="warn", const="log_level",
+                        help="Logging level (error, warn, info or debug)")
+    args = parser.parse_args()
+    suite = TestSuite(Environment(**vars(args)))
+    ret = None
+    try:
+        ret = suite.run()
+    finally:
+        suite.env.clean_up()
+        suite.store()
+    if ret is None or ret:
+        sys.exit(1)
+    else:
+        sys.exit(0)

mjtest/environment.py

+import logging
+import os
+import shutil
+import tempfile
+from datetime import datetime, time
+from mjtest.util.shell import execute
+from mjtest.util.utils import get_mjtest_basedir
+import humanfriendly as hf
+from typing import Tuple, List
+
+
+class TestMode:
+    syntax = "syntax"
+
+    semantic = "semantic"
+
+    exec = "exec"
+
+""" All 'success' tests of the n.th mode can used as 'success' tests for the n-1.th mode"""
+TEST_MODES = [TestMode.syntax, TestMode.semantic, TestMode.exec]
+
+class Environment:
+
+    LOG_LEVELS = {
+        "info": logging.INFO,
+        "error": logging.ERROR,
+        "warn": logging.WARN,
+        "debug": logging.DEBUG
+    }
+
+    def __init__(self, mode, mj_run_cmd: str, tmp_dir: str = "", test_dir: str = "",
+                 only_incorrect_tests: bool = False, parallel: bool = False,
+                 timeout: int = 30, report_dir: str = "", log_level: str = "warn"):
+        self.mode = mode
+        self.mj_run_cmd = os.path.realpath(mj_run_cmd)
+
+        if tmp_dir:
+            self.own_tmp_dir = True
+            self.tmp_dir = os.path.abspath(os.path.expandvars(tmp_dir))
+            if not os.path.exists(tmp_dir):
+                os.mkdir(self.tmp_dir)
+        else:
+            self.own_tmp_dir = False
+            self.tmp_dir = tempfile.mkdtemp("mjtest")
+
+        if test_dir:
+            self.test_dir = os.path.abspath(os.path.realpath(test_dir))
+        else:
+            self.test_dir = os.path.join(get_mjtest_basedir(), "tests")
+        if not os.path.exists(self.test_dir):
+            os.mkdir(self.test_dir)
+            for d in [TestMode.syntax, TestMode.semantic, TestMode.exec]:
+                os.mkdir(os.path.join(self.test_dir, d))
+
+        self.only_incorrect_tests = only_incorrect_tests
+        self.parallel = parallel
+        self.timeout = timeout
+
+        if tmp_dir:
+            self.report_dir = os.path.abspath(os.path.expandvars(report_dir))
+            if not os.path.exists(report_dir):
+                os.mkdir(self.report_dir)
+        else:
+            self.report_dir = os.path.join(get_mjtest_basedir(), "reports")
+
+            if not os.path.exists(self.report_dir):
+                os.mkdir(self.report_dir)
+        self.report_dir = os.path.join(self.report_dir, datetime.now().strftime("%d.%m.%y:%X"))
+        os.mkdir(self.report_dir)
+        logging.basicConfig(level=self.LOG_LEVELS[log_level])
+
+    def create_tmpfile(self) -> str:
+        return os.path.join(self.tmp_dir, os.times())
+
+    def clean_up(self):
+        if not self.own_tmp_dir:
+            shutil.rmtree(self.tmp_dir)
+
+    def run_mj_command(self, *args: Tuple[str]) -> Tuple[bytes, bytes, int]:
+        """
+        Execute the MiniJava `run` script with the given arguments.
+
+        :param args: arguments for the MiniJava `run` script
+        :return: (out, err, return code)
+        """
+        cmd = [self.mj_run_cmd] + list(args)
+        return execute(cmd, timeout=self.timeout)
\ No newline at end of file

mjtest/test/__init__.py

+__author__ = 'parttimenerd'

mjtest/test/syntax_tests.py

+from mjtest.environment import Environment, TestMode
+from mjtest.test.tests import TestCase, TestResult, BasicTestResult
+from os import path
+
+
+class BasicSyntaxTest(TestCase):
+
+    FILE_ENDINGS = [".invalid.mj", ".valid.mj", ".mj"]
+
+    def __init__(self, env: Environment, type: str, file: str):
+        super().__init__(env, type, file)
+        self._should_succeed = not file.endswith(".invalid.mj")
+
+    def should_succeed(self) -> bool:
+        return self._should_succeed
+
+    def short_name(self) -> str:
+        return path.basename(self.file)[:-3]
+
+    def run(self) -> TestResult:
+        out, err, rtcode = self.env.run_mj_command("--parsetest ", self.file)
+        return BasicTestResult(self, rtcode, out.decode(), err.decode())
+
+TestCase.TEST_CASE_CLASSES[TestMode.syntax].append(BasicSyntaxTest)
+

mjtest/test/tests.py

+from collections import namedtuple
+import shutil
+from typing import Optional, List, Tuple, T, Union
+from mjtest.environment import Environment, TestMode, TEST_MODES
+from os.path import join, exists, basename
+import logging
+import os
+import multiprocessing
+from mjtest.util.parallelism import available_cpu_count
+from termcolor import cprint, colored
+from pprint import pprint
+import shutil
+
+_LOG = logging.getLogger("tests")
+
+
+RunResult = namedtuple("RunResult", ['count', 'failed'])
+
+
+class TestSuite:
+    """
+    The whole set of tests.
+    """
+
+    def __init__(self, env: Environment):
+        self.env = env
+        self.test_cases = {} # type: Dict[str, List[TestCase]]
+        self.correct_test_cases = {} # type: Dict[str, List[str]]
+        self._load_test_cases()
+
+    def _load_test_cases(self):
+        types = TEST_MODES[TEST_MODES.index(self.env.mode):]
+        for type in types:
+            self._load_test_case_type(type)
+
+
+    def _load_test_case_type(self, type: str):
+        dir = join(self.env.test_dir, type)
+        if exists(dir):
+            self._load_test_case_dir(type, dir)
+        else:
+            _LOG.warn("Test folder {} doesn't exist".format(dir))
+
+    def _load_test_case_dir(self, mode: str, dir: str):
+        self.test_cases[mode] = []
+        correct_test_cases = set()
+        log_file = self._log_file_for_type(mode)
+        if exists(log_file):
+            with open(log_file) as f:
+                correct_test_cases = set(f.readlines())
+        for file in sorted(os.listdir(dir)):
+            if not TestCase.has_valid_file_ending(mode, file):
+                _LOG.debug("Skip file " + file)
+            elif self.env.only_incorrect_tests and file in correct_test_cases:
+                _LOG.info("Skip file {} as its test case was executed correctly the last run")
+            else:
+                test_case = TestCase.create_from_file(self.env, self.env.mode, join(dir, file))
+                if not test_case.can_run():
+                    _LOG.debug("Skip test case '{}' because it isn't suited".format(test_case.name()))
+                else:
+                    self.test_cases[mode].append(test_case)
+        if len(self.test_cases[mode]) == 0:
+            del self.test_cases[mode]
+
+    def _log_file_for_type(self, type: str):
+        return join(self.env.test_dir, type, ".mjtest_correct_testcases")
+
+    def _add_correct_test_case(self, test_case: 'TestCase'):
+        self.correct_test_cases[test_case.type].append(basename(test_case.file))
+
+    def run(self) -> RunResult:
+        ret = RunResult(0, 0)
+        try:
+            for mode in self.test_cases.keys():
+                single_ret = RunResult(0, 0)
+                if self.env.parallel:
+                    single_ret = self._run_parallel(mode, available_cpu_count())
+                else:
+                    single_ret = self._run_sequential(mode)
+                ret = RunResult(ret.count + single_ret.count, ret.failed + single_ret.failed)
+        except BaseException:
+            logging.exception("")
+        finally:
+            print("-" * 40)
+            if ret.failed > 0:  # some tests failed
+                print(colored("Ran {} tests, of which ".format(ret.count), "red") +
+                      colored("{} failed.".format(ret.failed), "red", attrs=["bold"]))
+            else:
+                cprint("All {} run tests succeeded".format(ret.count), "green")
+            report_dir = self.env.report_dir + "." + ("successful" if ret.failed == 0 else "failed")
+            os.rename(self.env.report_dir, report_dir)
+            print("A full report for each test can be found at {}".format(
+                os.path.relpath(report_dir)))
+
+            return ret
+
+    def _run_sequential(self, mode: str) -> RunResult:
+        failed = 0
+        count = 0
+        for test_case in self.test_cases[mode]:
+            ret = self._run_test_case(test_case)
+            if ret is False or not ret.is_correct():
+                failed += 1
+            else:
+                self._add_correct_test_case(test_case)
+            count += 1
+        return RunResult(count, failed)
+
+    def _func(self, test_case: 'TestCase'):
+        ret = self._run_test_case(test_case)
+        if ret.is_correct():
+            return 0, [test_case]
+        return 1, []
+
+    def _run_parallel(self, mode: str, parallel_jobs: int) -> RunResult:
+        pool = multiprocessing.Pool(parallel_jobs)
+        rets = pool.map(self._func, self.test_cases[mode])
+        return RunResult(len(rets), sum(map(lambda x: x[0], rets)))
+
+    def _run_test_case(self, test_case: 'TestCase') -> Optional['TestResult']:
+        try:
+            ret = test_case.run()
+            color = "green" if ret.is_correct() else "red"
+            print(colored("[{result:7s}] {tc:40s}".format(
+                result="SUCCESS" if ret.is_correct() else "FAIL",
+                tc=test_case.name()), color, attrs=["bold"]) +
+                  colored("" if ret.is_correct() else ret.short_message(), color))
+            try:
+                if not exists(self.env.report_dir):
+                    os.mkdir(self.env.report_dir)
+                rep_dir = join(self.env.report_dir, test_case.type)
+                if not exists(rep_dir):
+                    os.mkdir(rep_dir)
+                suffix = ".correct" if ret.is_correct() else ".incorrect"
+                ret.store_at(join(rep_dir, test_case.short_name() + suffix))
+                return ret
+            except IOError:
+                _LOG.exception("Caught i/o error while trying to store the report for '{}'"
+                               .format(test_case.name()))
+                return False
+        except KeyboardInterrupt:
+            raise
+        except BaseException:
+            _LOG.exception("At test case '{}'".format(test_case.short_name()))
+            return False
+
+    def store(self):
+        for mode in self.correct_test_cases.keys():
+            log_file = self._log_file_for_type(mode)
+            try:
+                with open(log_file, "w") as f:
+                    f.write("\n".join(self.correct_test_cases[mode]))
+            except IOError as e:
+                _LOG.exception("Caught i/o error while storing {}".format(log_file))
+
+
+class TestCase:
+    """
+    A single test case.
+    """
+
+    TEST_CASE_CLASSES = {
+        TestMode.syntax: []
+    }
+    FILE_ENDINGS = []
+
+    def __init__(self, env: Environment, type: str, file: str):
+        self.env = env
+        self.type = type
+        self.file = file
+
+    def should_succeed(self) -> bool:
+        raise NotImplementedError()
+
+    def can_run(self, mode: str = "") -> bool:
+        mode = mode or self.env.mode
+
+        if mode == TestMode.exec:
+            return self.type == TestMode.exec
+        if mode == TestMode.semantic:
+            return self.type == TestMode.semantic \
+                   or (self.type == TestMode.exec and self.should_succeed())
+        if mode == TestMode.syntax:
+            return self.type == TestMode.syntax or \
+                   (self.can_run(TestMode.semantic) and self.should_succeed())
+
+    def run(self) -> 'TestResult':
+        raise NotImplementedError()
+
+    @classmethod
+    def create_from_file(cls, env: Environment, mode: str, file: str) -> Optional['TestCase']:
+        if cls.has_valid_file_ending(mode, file):
+            return cls._test_case_class_for_file(mode, file)(env, mode, file)
+        return None
+
+    def name(self):
+        return "{}:{}".format(self.type, self.short_name())
+
+    def short_name(self) -> str:
+        raise NotImplementedError()
+
+    @classmethod
+    def _test_case_class_for_file(cls, type: str, file: str):
+        for t in cls.TEST_CASE_CLASSES[type]:
+            if any(file.endswith(e) for e in t.FILE_ENDINGS):
+                return t
+        return False
+
+
+    @classmethod
+    def has_valid_file_ending(cls, type: str, file: str):
+        return cls._test_case_class_for_file(type, file) != False
+
+
+class TestResult:
+
+    def __init__(self, test_case: TestCase, error_code: int):
+        self.test_case = test_case
+        self.error_code = error_code
+
+    def is_correct(self) -> bool:
+        return self.succeeded() == self.test_case.should_succeed()
+
+    def succeeded(self) -> bool:
+        return self.error_code == 0
+
+    def store_at(self, file: str):
+        with open(file, "w") as f:
+            print(self.long_message(), file=f)
+
+    def short_message(self) -> str:
+        raise NotImplementedError()
+
+    def long_message(self) -> str:
+        raise NotImplementedError()
+
+
+class BasicTestResult(TestResult):
+
+    def __init__(self, test_case: TestCase, error_code: int, error_output: str, output: str):
+        super().__init__(test_case, error_code)
+        self._contains_error_str = "error" in error_output
+        self.error_output = error_output
+        self.output = output
+
+    def is_correct(self):
+        if self.succeeded():
+            return super().is_correct()
+        else:
+            return super().is_correct() and self._contains_error_str
+
+    def short_message(self) -> str:
+        if self.is_correct():
+            return "correct"
+        else:
+            if not self.succeeded() and not self.test_case.should_succeed() and not self._contains_error_str:
+                return "the error output doesn't contain the word \"error\""
+            return "incorrect return code"
+
+    def long_message(self) -> str:
+        file_content = ""
+        with open(self.test_case.file, "r") as f:
+            file_content = f.readlines()
+        return """{}
+
+Source file:
+
+{}
+
+Output:
+
+{}
+
+Error output:
+
+{}
+
+Return code: {}
+""".format(self.short_message().capitalize(), self._ident(file_content),
+           self._ident(self.output), self._ident(self.error_output), self.error_code)
+
+    def _ident(self, text: Union[str,List[str]]) -> str:
+        arr = text if isinstance(text, list) else text.split("\n")
+        return "    " + "\n    ".join(arr)
+
+import mjtest.test.syntax_tests
\ No newline at end of file

mjtest/util/concurrent/__init__.py

+from pkgutil import extend_path
+
+__path__ = extend_path(__path__, __name__)

mjtest/util/concurrent/futures/__init__.py

+# Copyright 2009 Brian Quinlan. All Rights Reserved.
+# Licensed to PSF under a Contributor Agreement.
+
+"""Execute computations asynchronously using threads or processes."""
+
+__author__ = 'Brian Quinlan (brian@sweetapp.com)'