tests.py 15.8 KB
Newer Older
Johannes Bechberger's avatar
Johannes Bechberger committed
1
2
from collections import namedtuple
import shutil
3
from typing import Optional, List, Tuple, T, Union, Dict
4
import collections
Johannes Bechberger's avatar
Johannes Bechberger committed
5
6
7
8
9
10
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
11
from mjtest.util.utils import cprint, colored
Johannes Bechberger's avatar
Johannes Bechberger committed
12
13
from pprint import pprint
import shutil
Johannes Bechberger's avatar
Johannes Bechberger committed
14
import difflib
Johannes Bechberger's avatar
Johannes Bechberger committed
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29

_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]]
30
        self.correct_test_cases = collections.defaultdict(set) # type: Dict[str, Set[str]]
Johannes Bechberger's avatar
Johannes Bechberger committed
31
32
33
        self._load_test_cases()

    def _load_test_cases(self):
Johannes Bechberger's avatar
Johannes Bechberger committed
34
35
36
37
38
        types = [self.env.mode]#TEST_MODES#TEST_MODES[TEST_MODES.index(self.env.mode):]
        if self.env.ci_testing:
            types = TEST_MODES
        elif self.env.mode in TestMode.USE_TESTS_OF_OTHER:
            types += TestMode.USE_TESTS_OF_OTHER[self.env.mode]
Johannes Bechberger's avatar
Johannes Bechberger committed
39
40
41
42
43
44
45
46
47
        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:
Johannes Bechberger's avatar
Johannes Bechberger committed
48
            _LOG.info("Test folder {} doesn't exist".format(dir))
Johannes Bechberger's avatar
Johannes Bechberger committed
49
50
51
52
53
54

    def _load_test_case_dir(self, mode: str, dir: str):
        correct_test_cases = set()
        log_file = self._log_file_for_type(mode)
        if exists(log_file):
            with open(log_file) as f:
55
56
57
58
59
60
                correct_test_cases = set()
                for t in f.readlines():
                    t = t.strip()
                    if len(t) > 0:
                        self.correct_test_cases[mode].add(t)
                        correct_test_cases.add(t)
Johannes Bechberger's avatar
Johannes Bechberger committed
61
62
63
64
        m = mode
        if m != self.env.mode and self.env.mode in TestMode.USE_TESTS_OF_OTHER and \
            m in TestMode.USE_TESTS_OF_OTHER[self.env.mode]:
            m = self.env.mode
65
66
67
68
69
70
71
72
        file_names = []
        for root, dirs, files in os.walk(dir):
            base = os.path.relpath(root, dir)
            if dir == root:
                file_names.extend(files)
            else:
                file_names.extend(join(base, file) for file in files)
        for file in sorted(file_names):
73
            if not TestCase.has_valid_file_ending(self.env.mode, file):
Johannes Bechberger's avatar
Johannes Bechberger committed
74
75
76
77
                _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:
Johannes Bechberger's avatar
Johannes Bechberger committed
78
79
80
81
                test_case = TestCase.create_from_file(self.env, m, join(dir, file))
                if not test_case:
                    pass
                elif not test_case.can_run():
Johannes Bechberger's avatar
Johannes Bechberger committed
82
83
                    _LOG.debug("Skip test case '{}' because it isn't suited".format(test_case.name()))
                else:
Johannes Bechberger's avatar
Johannes Bechberger committed
84
85
86
87
88
                    if m not in self.test_cases:
                        self.test_cases[m] = []
                    self.test_cases[m].append(test_case)
        if m in self.test_cases and len(self.test_cases[m]) == 0:
            del self.test_cases[m]
Johannes Bechberger's avatar
Johannes Bechberger committed
89
90

    def _log_file_for_type(self, type: str):
91
        return join(self.env.test_dir, type, ".mjtest_correct_testcases_" + self.env.mode)
Johannes Bechberger's avatar
Johannes Bechberger committed
92
93

    def _add_correct_test_case(self, test_case: 'TestCase'):
94
        self.correct_test_cases[test_case.type].add(basename(test_case.file))
Johannes Bechberger's avatar
Johannes Bechberger committed
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114

    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")
115
            if self.env.produce_reports and (self.env.produce_all_reports or ret.failed > 0):
116
                report_dir = self.env.report_dir + "." + ("successful" if ret.failed == 0 else "failed")
117
118
119
120
                try:
                    os.rename(self.env.report_dir, report_dir)
                except IOError:
                    pass
121
122
                print("A full report for each test can be found at {}".format(
                    os.path.relpath(report_dir)))
Johannes Bechberger's avatar
Johannes Bechberger committed
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139

            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)
Johannes Bechberger's avatar
Johannes Bechberger committed
140
        if ret is not False and ret.is_correct():
141
142
            return 0, test_case
        return 1, test_case
Johannes Bechberger's avatar
Johannes Bechberger committed
143
144
145
146

    def _run_parallel(self, mode: str, parallel_jobs: int) -> RunResult:
        pool = multiprocessing.Pool(parallel_jobs)
        rets = pool.map(self._func, self.test_cases[mode])
147
148
149
150
151
152
        result = RunResult(len(rets), sum(map(lambda x: x[0], rets)))
        for (suc, test_case) in rets:
            if suc == 0:
                self._add_correct_test_case(test_case)
        return result

Johannes Bechberger's avatar
Johannes Bechberger committed
153
154
155
156
157
158
159
160
161
162

    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:
163
                if self.env.produce_reports and (self.env.produce_all_reports or not ret.is_correct()):
164
165
166
167
                    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):
168
169
170
171
                        try:
                            os.mkdir(rep_dir)
                        except IOError:
                            pass
172
173
                    suffix = ".correct" if ret.is_correct() else ".incorrect"
                    ret.store_at(join(rep_dir, test_case.short_name() + suffix))
174
175
176
                if self.env.output_incorrect_reports and not ret.is_correct():
                    print(colored("Report for failing test case {}".format(test_case.short_name()), "red", attrs=["bold"]))
                    print(colored(ret.long_message(), "red"))
Johannes Bechberger's avatar
Johannes Bechberger committed
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
                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.
    """

Johannes Bechberger's avatar
Johannes Bechberger committed
203
    TEST_CASE_CLASSES = dict((k, []) for k in TEST_MODES)
Johannes Bechberger's avatar
Johannes Bechberger committed
204
    FILE_ENDINGS = []
Johannes Bechberger's avatar
Johannes Bechberger committed
205
    INVALID_FILE_ENDINGS = []
Johannes Bechberger's avatar
Johannes Bechberger committed
206
207
208
209
210
211
212
213
214
215
216

    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
Johannes Bechberger's avatar
Johannes Bechberger committed
217
        same_mode = self.type == mode
218
        types = TEST_MODES[TEST_MODES.index(self.env.mode):]
219
        if self.env.ci_testing:
Johannes Bechberger's avatar
Johannes Bechberger committed
220
            return same_mode or \
221
222
223
                   (self.type in types and self.should_succeed()) or \
                   (self.type not in types and not self.should_succeed())
        else:
Johannes Bechberger's avatar
Johannes Bechberger committed
224
            return same_mode
Johannes Bechberger's avatar
Johannes Bechberger committed
225
226
227
228
229
230

    def run(self) -> 'TestResult':
        raise NotImplementedError()

    @classmethod
    def create_from_file(cls, env: Environment, mode: str, file: str) -> Optional['TestCase']:
231
232
        if cls.has_valid_file_ending(env.mode, file):
            return cls._test_case_class_for_file(env.mode, file)(env, mode, file)
Johannes Bechberger's avatar
Johannes Bechberger committed
233
234
235
236
237
238
239
240
241
242
243
        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]:
Johannes Bechberger's avatar
Johannes Bechberger committed
244
245
            if any(file.endswith(e) for e in t.FILE_ENDINGS) and \
                    not any(file.endswith(e) for e in t.INVALID_FILE_ENDINGS):
Johannes Bechberger's avatar
Johannes Bechberger committed
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
                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):

Johannes Bechberger's avatar
Johannes Bechberger committed
280
281
    def __init__(self, test_case: TestCase, error_code: int, output: str = None, error_output: str = None,
                 incorrect_msg: str = "incorrect return code"):
Johannes Bechberger's avatar
Johannes Bechberger committed
282
        super().__init__(test_case, error_code)
Johannes Bechberger's avatar
Johannes Bechberger committed
283
        self._incorrect_msg = incorrect_msg
Johannes Bechberger's avatar
Johannes Bechberger committed
284
285
286
        self._contains_error_str = "error" in error_output
        self.error_output = error_output
        self.output = output
287
        self.other_texts = [] # type: List[Tuple[str, str, bool]]
Johannes Bechberger's avatar
Johannes Bechberger committed
288
289
290
291
        if output:
            self.add_additional_text("Output", output)
        if error_output:
            self.add_additional_text("Error output", error_output)
Johannes Bechberger's avatar
Johannes Bechberger committed
292
293
294
295
296
297
298
299
300
301
302
303
304

    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\""
Johannes Bechberger's avatar
Johannes Bechberger committed
305
            return self._incorrect_msg
Johannes Bechberger's avatar
Johannes Bechberger committed
306
307

    def long_message(self) -> str:
308
        file_content = []
Johannes Bechberger's avatar
Johannes Bechberger committed
309
        with open(self.test_case.file, "r") as f:
310
            file_content = [line.rstrip() for line in f]
311
312
313
314
315
316
317
318
319
320
321
        others = []
        for title, content, long_text in self.other_texts:
            if long_text:
                others.append("""
{}:

{}

""".format(title, self._ident(content)))
            else:
                others.append("""{}: {}\n""".format(title, content))
Johannes Bechberger's avatar
Johannes Bechberger committed
322
323
324
325
326
327
328
        return """{}

Source file:

{}

Return code: {}
329
330

{}
Johannes Bechberger's avatar
Johannes Bechberger committed
331
""".format(self.short_message().capitalize(), self._ident(file_content), self.error_code,
332
333
334
335
336
337
338
           "\n".join(others))

    def add_additional_text(self, title: str, content: str):
        self.other_texts.append((title, content, True))

    def add_additional_text_line(self, title: str, content: str):
        self.other_texts.append((title, content, False))
Johannes Bechberger's avatar
Johannes Bechberger committed
339
340
341

    def _ident(self, text: Union[str,List[str]]) -> str:
        arr = text if isinstance(text, list) else text.split("\n")
342
343
344
345
        if len(arr) == 0 or text == "":
            return ""
        arr = ["[{:04d}]    {:s}".format(i + 1, l) for (i, l) in enumerate(arr)]
        return "\n".join(arr)
Johannes Bechberger's avatar
Johannes Bechberger committed
346

Johannes Bechberger's avatar
Johannes Bechberger committed
347
348
349
350
351
352

class BasicDiffTestResult(BasicTestResult):

    def __init__(self, test_case: TestCase, error_code: int, output: str, error_output: str, expected_output: str):
        super().__init__(test_case, error_code, output, error_output)
        self.expected_output = expected_output
353
        self._is_output_correct = self.expected_output.strip() == self.output.strip()
Johannes Bechberger's avatar
Johannes Bechberger committed
354
355
356
357
358
        if self.is_correct():
            self.add_additional_text("Expected and actual output", self.output)
        elif self.succeeded() and self.test_case.should_succeed():
            self.add_additional_text("Diff[expected output, actual output]", self._output_diff())
            self.add_additional_text("Expected output", self.expected_output)
359
            #self.add_additional_text("Actual output", self.output)
Johannes Bechberger's avatar
Johannes Bechberger committed
360
361
362
363
364
365
366
367

    def is_correct(self):
        if self.succeeded():
            return super().is_correct() and self.is_output_correct()
        else:
            return super().is_correct() and self._contains_error_str

    def _output_diff(self) -> str:
368
        return "".join(difflib.Differ().compare(self.expected_output.splitlines(True), self.output.splitlines(True)))
Johannes Bechberger's avatar
Johannes Bechberger committed
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383

    def is_output_correct(self) -> str:
        return self._is_output_correct

    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\""
            if self.succeeded() and self.test_case.should_succeed():
                return "the actual output differs from the expected"
            return "incorrect return code"


Johannes Bechberger's avatar
Johannes Bechberger committed
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
class DiffTest(TestCase):

    FILE_ENDINGS = [".invalid.mj", ".valid.mj", ".mj"]
    OUTPUT_FILE_ENDING = ".out"
    MODE = TestMode.ast

    def __init__(self, env: Environment, type: str, file: str):
        super().__init__(env, type, file)
        self._should_succeed = not file.endswith(".invalid.mj")
        self._expected_output_file = file + self.OUTPUT_FILE_ENDING
        self._has_expected_output_file = exists(self._expected_output_file)

    def should_succeed(self) -> bool:
        return self._should_succeed

    def short_name(self) -> str:
        return basename(self.file)

    def run(self) -> BasicDiffTestResult:
        out, err, rtcode = self.env.run_mj_command(self.MODE, self.file)
        exp_out = ""
        if rtcode == 0 and self.should_succeed():
            if self._has_expected_output_file and self.type == self.MODE and self.env.mode == self.MODE:
                with open(self._expected_output_file, "r") as f:
                    exp_out = f.read()
            #else:
            #    _LOG.error("Expected output file for test case {}:{} is missing.".format(self.MODE, self.short_name()))
        if self.type == self.MODE and self.env.mode == self.MODE:
            return BasicDiffTestResult(self, rtcode, out.decode(), err.decode(), exp_out)
        return BasicTestResult(self, rtcode, out.decode(), err.decode())


class LexerDiffTest(DiffTest):

    MODE = TestMode.lexer

TestCase.TEST_CASE_CLASSES[TestMode.lexer].append(LexerDiffTest)
Johannes Bechberger's avatar
Johannes Bechberger committed
421
422
423

import mjtest.test.syntax_tests
import mjtest.test.ast_tests