projects / babeltrace.git / blame
| Commit | Line | Data |
|---|---|---|
| b85894a3 MJ |
1 | # Copyright (c) 2016, Matt Layman |
| 2 | ||
| 3 | from tap.adapter import Adapter | |
| 4 | from tap.directive import Directive | |
| 5 | from tap.i18n import _ | |
| 6 | from tap.line import Result | |
| 7 | ||
| 8 | ||
| 9 | class Rules(object): | |
| 10 | ||
| 11 | def __init__(self, filename, suite): | |
| 12 | self._filename = filename | |
| 13 | self._suite = suite | |
| 14 | self._lines_seen = {'plan': [], 'test': 0, 'version': []} | |
| 15 | ||
| 16 | def check(self, final_line_count): | |
| 17 | """Check the status of all provided data and update the suite.""" | |
| 18 | if self._lines_seen['version']: | |
| 19 | self._process_version_lines() | |
| 20 | self._process_plan_lines(final_line_count) | |
| 21 | ||
| 22 | def _process_version_lines(self): | |
| 23 | """Process version line rules.""" | |
| 24 | if len(self._lines_seen['version']) > 1: | |
| 25 | self._add_error(_('Multiple version lines appeared.')) | |
| 26 | elif self._lines_seen['version'][0] != 1: | |
| 27 | self._add_error(_('The version must be on the first line.')) | |
| 28 | ||
| 29 | def _process_plan_lines(self, final_line_count): | |
| 30 | """Process plan line rules.""" | |
| 31 | if not self._lines_seen['plan']: | |
| 32 | self._add_error(_('Missing a plan.')) | |
| 33 | return | |
| 34 | ||
| 35 | if len(self._lines_seen['plan']) > 1: | |
| 36 | self._add_error(_('Only one plan line is permitted per file.')) | |
| 37 | return | |
| 38 | ||
| 39 | plan, at_line = self._lines_seen['plan'][0] | |
| 40 | if not self._plan_on_valid_line(at_line, final_line_count): | |
| 41 | self._add_error( | |
| 42 | _('A plan must appear at the beginning or end of the file.')) | |
| 43 | return | |
| 44 | ||
| 45 | if plan.expected_tests != self._lines_seen['test']: | |
| 46 | self._add_error(_( | |
| 47 | 'Expected {expected_count} tests ' | |
| 48 | 'but only {seen_count} ran.').format( | |
| 49 | expected_count=plan.expected_tests, | |
| 50 | seen_count=self._lines_seen['test'])) | |
| 51 | ||
| 52 | def _plan_on_valid_line(self, at_line, final_line_count): | |
| 53 | """Check if a plan is on a valid line.""" | |
| 54 | # Put the common cases first. | |
| 55 | if at_line == 1 or at_line == final_line_count: | |
| 56 | return True | |
| 57 | ||
| 58 | # The plan may only appear on line 2 if the version is at line 1. | |
| 59 | after_version = ( | |
| 60 | self._lines_seen['version'] and | |
| 61 | self._lines_seen['version'][0] == 1 and | |
| 62 | at_line == 2) | |
| 63 | if after_version: | |
| 64 | return True | |
| 65 | ||
| 66 | return False | |
| 67 | ||
| 68 | def handle_bail(self, bail): | |
| 69 | """Handle a bail line.""" | |
| 70 | self._add_error(_('Bailed: {reason}').format(reason=bail.reason)) | |
| 71 | ||
| 72 | def handle_file_does_not_exist(self): | |
| 73 | """Handle a test file that does not exist.""" | |
| 74 | self._add_error(_('{filename} does not exist.').format( | |
| 75 | filename=self._filename)) | |
| 76 | ||
| 77 | def handle_skipping_plan(self, skip_plan): | |
| 78 | """Handle a plan that contains a SKIP directive.""" | |
| 79 | skip_line = Result( | |
| 80 | True, None, skip_plan.directive.text, Directive('SKIP')) | |
| 81 | self._suite.addTest(Adapter(self._filename, skip_line)) | |
| 82 | ||
| 83 | def saw_plan(self, plan, at_line): | |
| 84 | """Record when a plan line was seen.""" | |
| 85 | self._lines_seen['plan'].append((plan, at_line)) | |
| 86 | ||
| 87 | def saw_test(self): | |
| 88 | """Record when a test line was seen.""" | |
| 89 | self._lines_seen['test'] += 1 | |
| 90 | ||
| 91 | def saw_version_at(self, line_counter): | |
| 92 | """Record when a version line was seen.""" | |
| 93 | self._lines_seen['version'].append(line_counter) | |
| 94 | ||
| 95 | def _add_error(self, message): | |
| 96 | """Add an error test to the suite.""" | |
| 97 | error_line = Result(False, None, message, Directive('')) | |
| 98 | self._suite.addTest(Adapter(self._filename, error_line)) |