summaryrefslogtreecommitdiff
path: root/tests/testHelpers.inc
blob: 7fc60a5cf571c0b5e07326240ece59f0fbbaef9f (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
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
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
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
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
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
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
474
475
476
477
478
479
480
481
482
483
484
485
486
487
488
489
490
491
492
493
494
495
496
497
498
499
500
501
502
503
504
505
506
507
508
509
510
511
512
513
514
515
516
517
518
519
520
521
522
523
524
525
526
527
528
529
530
531
532
533
534
535
536
537
538
539
540
541
542
543
544
545
546
547
548
549
550
551
552
553
554
555
556
557
558
559
560
561
562
563
564
565
566
567
568
569
570
571
572
573
574
575
576
577
578
579
580
581
582
<?php

class TestRecorder {
	var $parent;
	var $term;

	function __construct( $parent ) {
		$this->parent = $parent;
		$this->term = $parent->term;
	}

	function start() {
		$this->total = 0;
		$this->success = 0;
	}

	function record( $test, $result ) {
		$this->total++;
		$this->success += ( $result ? 1 : 0 );
	}

	function end() {
		// dummy
	}

	function report() {
		if ( $this->total > 0 ) {
			$this->reportPercentage( $this->success, $this->total );
		} else {
			throw new MWException( "No tests found.\n" );
		}
	}

	function reportPercentage( $success, $total ) {
		$ratio = wfPercent( 100 * $success / $total );
		print $this->term->color( 1 ) . "Passed $success of $total tests ($ratio)... ";

		if ( $success == $total ) {
			print $this->term->color( 32 ) . "ALL TESTS PASSED!";
		} else {
			$failed = $total - $success ;
			print $this->term->color( 31 ) . "$failed tests failed!";
		}

		print $this->term->reset() . "\n";

		return ( $success == $total );
	}
}

class DbTestPreviewer extends TestRecorder  {
	protected $lb;      // /< Database load balancer
	protected $db;      // /< Database connection to the main DB
	protected $curRun;  // /< run ID number for the current run
	protected $prevRun; // /< run ID number for the previous run, if any
	protected $results; // /< Result array

	/**
	 * This should be called before the table prefix is changed
	 */
	function __construct( $parent ) {
		parent::__construct( $parent );

		$this->lb = wfGetLBFactory()->newMainLB();
		// This connection will have the wiki's table prefix, not parsertest_
		$this->db = $this->lb->getConnection( DB_MASTER );
	}

	/**
	 * Set up result recording; insert a record for the run with the date
	 * and all that fun stuff
	 */
	function start() {
		parent::start();

		if ( ! $this->db->tableExists( 'testrun', __METHOD__ )
			|| ! $this->db->tableExists( 'testitem', __METHOD__ ) )
		{
			print "WARNING> `testrun` table not found in database.\n";
			$this->prevRun = false;
		} else {
			// We'll make comparisons against the previous run later...
			$this->prevRun = $this->db->selectField( 'testrun', 'MAX(tr_id)' );
		}

		$this->results = array();
	}

	function record( $test, $result ) {
		parent::record( $test, $result );
		$this->results[$test] = $result;
	}

	function report() {
		if ( $this->prevRun ) {
			// f = fail, p = pass, n = nonexistent
			// codes show before then after
			$table = array(
				'fp' => 'previously failing test(s) now PASSING! :)',
				'pn' => 'previously PASSING test(s) removed o_O',
				'np' => 'new PASSING test(s) :)',

				'pf' => 'previously passing test(s) now FAILING! :(',
				'fn' => 'previously FAILING test(s) removed O_o',
				'nf' => 'new FAILING test(s) :(',
				'ff' => 'still FAILING test(s) :(',
			);

			$prevResults = array();

			$res = $this->db->select( 'testitem', array( 'ti_name', 'ti_success' ),
				array( 'ti_run' => $this->prevRun ), __METHOD__ );

			foreach ( $res as $row ) {
				if ( !$this->parent->regex
					|| preg_match( "/{$this->parent->regex}/i", $row->ti_name ) )
				{
					$prevResults[$row->ti_name] = $row->ti_success;
				}
			}

			$combined = array_keys( $this->results + $prevResults );

			# Determine breakdown by change type
			$breakdown = array();
			foreach ( $combined as $test ) {
				if ( !isset( $prevResults[$test] ) ) {
					$before = 'n';
				} elseif ( $prevResults[$test] == 1 ) {
					$before = 'p';
				} else /* if ( $prevResults[$test] == 0 )*/ {
					$before = 'f';
				}

				if ( !isset( $this->results[$test] ) ) {
					$after = 'n';
				} elseif ( $this->results[$test] == 1 ) {
					$after = 'p';
				} else /*if ( $this->results[$test] == 0 ) */ {
					$after = 'f';
				}

				$code = $before . $after;

				if ( isset( $table[$code] ) ) {
					$breakdown[$code][$test] = $this->getTestStatusInfo( $test, $after );
				}
			}

			# Write out results
			foreach ( $table as $code => $label ) {
				if ( !empty( $breakdown[$code] ) ) {
					$count = count( $breakdown[$code] );
					printf( "\n%4d %s\n", $count, $label );

					foreach ( $breakdown[$code] as $differing_test_name => $statusInfo ) {
						print "      * $differing_test_name  [$statusInfo]\n";
					}
				}
			}
		} else {
			print "No previous test runs to compare against.\n";
		}

		print "\n";
		parent::report();
	}

	/**
	 * Returns a string giving information about when a test last had a status change.
	 * Could help to track down when regressions were introduced, as distinct from tests
	 * which have never passed (which are more change requests than regressions).
	 */
	private function getTestStatusInfo( $testname, $after ) {
		// If we're looking at a test that has just been removed, then say when it first appeared.
		if ( $after == 'n' ) {
			$changedRun = $this->db->selectField ( 'testitem',
				'MIN(ti_run)',
				array( 'ti_name' => $testname ),
				__METHOD__ );
			$appear = $this->db->selectRow ( 'testrun',
				array( 'tr_date', 'tr_mw_version' ),
				array( 'tr_id' => $changedRun ),
				__METHOD__ );

			return "First recorded appearance: "
				   . date( "d-M-Y H:i:s",  strtotime ( $appear->tr_date ) )
				   .  ", " . $appear->tr_mw_version;
		}

		// Otherwise, this test has previous recorded results.
		// See when this test last had a different result to what we're seeing now.
		$conds = array(
			'ti_name'    => $testname,
			'ti_success' => ( $after == 'f' ? "1" : "0" ) );

		if ( $this->curRun ) {
			$conds[] = "ti_run != " . $this->db->addQuotes ( $this->curRun );
		}

		$changedRun = $this->db->selectField ( 'testitem', 'MAX(ti_run)', $conds, __METHOD__ );

		// If no record of ever having had a different result.
		if ( is_null ( $changedRun ) ) {
			if ( $after == "f" ) {
				return "Has never passed";
			} else {
				return "Has never failed";
			}
		}

		// Otherwise, we're looking at a test whose status has changed.
		// (i.e. it used to work, but now doesn't; or used to fail, but is now fixed.)
		// In this situation, give as much info as we can as to when it changed status.
		$pre  = $this->db->selectRow ( 'testrun',
			array( 'tr_date', 'tr_mw_version' ),
			array( 'tr_id' => $changedRun ),
			__METHOD__ );
		$post = $this->db->selectRow ( 'testrun',
			array( 'tr_date', 'tr_mw_version' ),
			array( "tr_id > " . $this->db->addQuotes ( $changedRun ) ),
			__METHOD__,
			array( "LIMIT" => 1, "ORDER BY" => 'tr_id' )
		);

		if ( $post ) {
			$postDate = date( "d-M-Y H:i:s",  strtotime ( $post->tr_date  ) ) . ", {$post->tr_mw_version}";
		} else {
			$postDate = 'now';
		}

		return ( $after == "f" ? "Introduced" : "Fixed" ) . " between "
				. date( "d-M-Y H:i:s",  strtotime ( $pre->tr_date ) ) .  ", " . $pre->tr_mw_version
				. " and $postDate";

	}

	/**
	 * Commit transaction and clean up for result recording
	 */
	function end() {
		$this->lb->commitMasterChanges();
		$this->lb->closeAll();
		parent::end();
	}

}

class DbTestRecorder extends DbTestPreviewer  {
	var $version;

	/**
	 * Set up result recording; insert a record for the run with the date
	 * and all that fun stuff
	 */
	function start() {
		$this->db->begin();

		if ( ! $this->db->tableExists( 'testrun' )
			|| ! $this->db->tableExists( 'testitem' ) )
		{
			print "WARNING> `testrun` table not found in database. Trying to create table.\n";
			$this->db->sourceFile( $this->db->patchPath( 'patch-testrun.sql' ) );
			echo "OK, resuming.\n";
		}

		parent::start();

		$this->db->insert( 'testrun',
			array(
				'tr_date'        => $this->db->timestamp(),
				'tr_mw_version'  => $this->version,
				'tr_php_version' => phpversion(),
				'tr_db_version'  => $this->db->getServerVersion(),
				'tr_uname'       => php_uname()
			),
			__METHOD__ );
			if ( $this->db->getType() === 'postgres' ) {
				$this->curRun = $this->db->currentSequenceValue( 'testrun_id_seq' );
			} else {
				$this->curRun = $this->db->insertId();
			}
	}

	/**
	 * Record an individual test item's success or failure to the db
	 *
	 * @param $test String
	 * @param $result Boolean
	 */
	function record( $test, $result ) {
		parent::record( $test, $result );

		$this->db->insert( 'testitem',
			array(
				'ti_run'     => $this->curRun,
				'ti_name'    => $test,
				'ti_success' => $result ? 1 : 0,
			),
			__METHOD__ );
	}
}

class TestFileIterator implements Iterator {
	private $file;
	private $fh;
	private $parserTest; /* An instance of ParserTest (parserTests.php) or MediaWikiParserTest (phpunit) */
	private $index = 0;
	private $test;
	private $section = null; /** String|null: current test section being analyzed */
	private $sectionData = array();
	private $lineNum;
	private $eof;

	function __construct( $file, $parserTest ) {
		$this->file = $file;
		$this->fh = fopen( $this->file, "rt" );

		if ( !$this->fh ) {
			throw new MWException( "Couldn't open file '$file'\n" );
		}

		$this->parserTest = $parserTest;

		$this->lineNum = $this->index = 0;
	}

	function rewind() {
		if ( fseek( $this->fh, 0 ) ) {
			throw new MWException( "Couldn't fseek to the start of '$this->file'\n" );
		}

		$this->index = -1;
		$this->lineNum = 0;
		$this->eof = false;
		$this->next();

		return true;
	}

	function current() {
		return $this->test;
	}

	function key() {
		return $this->index;
	}

	function next() {
		if ( $this->readNextTest() ) {
			$this->index++;
			return true;
		} else {
			$this->eof = true;
		}
	}

	function valid() {
		return $this->eof != true;
	}

	function readNextTest() {
		$this->clearSection();

		# Create a fake parser tests which never run anything unless
		# asked to do so. This will avoid running hooks for a disabled test
		$delayedParserTest = new DelayedParserTest();

		while ( false !== ( $line = fgets( $this->fh ) ) ) {
			$this->lineNum++;
			$matches = array();

			if ( preg_match( '/^!!\s*(\w+)/', $line, $matches ) ) {
				$this->section = strtolower( $matches[1] );

				if ( $this->section == 'endarticle' ) {
					$this->checkSection( 'text'    );
					$this->checkSection( 'article' );

					$this->parserTest->addArticle( ParserTest::chomp( $this->sectionData['article'] ), $this->sectionData['text'], $this->lineNum );

					$this->clearSection();

					continue;
				}

				if ( $this->section == 'endhooks' ) {
					$this->checkSection( 'hooks' );

					foreach ( explode( "\n", $this->sectionData['hooks'] ) as $line ) {
						$line = trim( $line );

						if ( $line ) {
							$delayedParserTest->requireHook( $line );
						}
					}

					$this->clearSection();

					continue;
				}

				if ( $this->section == 'endfunctionhooks' ) {
					$this->checkSection( 'functionhooks' );

					foreach ( explode( "\n", $this->sectionData['functionhooks'] ) as $line ) {
						$line = trim( $line );

						if ( $line ) {
							$delayedParserTest->requireFunctionHook( $line );
						}
					}

					$this->clearSection();

					continue;
				}

				if ( $this->section == 'end' ) {
					$this->checkSection( 'test'   );
					$this->checkSection( 'input'  );
					$this->checkSection( 'result' );

					if ( !isset( $this->sectionData['options'] ) ) {
						$this->sectionData['options'] = '';
					}

					if ( !isset( $this->sectionData['config'] ) ) {
						$this->sectionData['config'] = '';
					}

					if ( ( ( preg_match( '/\\bdisabled\\b/i', $this->sectionData['options'] ) && !$this->parserTest->runDisabled )
							 || !preg_match( "/" . $this->parserTest->regex . "/i", $this->sectionData['test'] ) )  ) {
						# disabled test
						$this->clearSection();

						# Forget any pending hooks call since test is disabled
						$delayedParserTest->reset();

						continue;
					}

					# We are really going to run the test, run pending hooks and hooks function
					wfDebug( __METHOD__ . " unleashing delayed test for: {$this->sectionData['test']}" );
					$hooksResult = $delayedParserTest->unleash( $this->parserTest );
					if( !$hooksResult ) {
						# Some hook reported an issue. Abort.
						return false;
					}

					$this->test = array(
						'test'    => ParserTest::chomp( $this->sectionData['test']    ),
						'input'   => ParserTest::chomp( $this->sectionData['input']   ),
						'result'  => ParserTest::chomp( $this->sectionData['result']  ),
						'options' => ParserTest::chomp( $this->sectionData['options'] ),
						'config'  => ParserTest::chomp( $this->sectionData['config']  ),
					);

					return true;
				}

				if ( isset ( $this->sectionData[$this->section] ) ) {
					throw new MWException( "duplicate section '$section' at line {$this->lineNum} of $this->file\n" );
				}

				$this->sectionData[$this->section] = '';

				continue;
			}

			if ( $this->section ) {
				$this->sectionData[$this->section] .= $line;
			}
		}

		return false;
	}


	/**
	 * Clear section name and its data
	 */
	private function clearSection() {
		$this->sectionData = array();
		$this->section = null;
		
	}

	/**
	 * Verify the current section data has some value for the given token
	 * name (first parameter).
	 * Throw an exception if it is not set, referencing current section
	 * and adding the current file name and line number
	 *
	 * @param $token String: expected token that should have been mentionned before closing this section 
	 */
	private function checkSection( $token ) {
		if( is_null( $this->section ) ) {
			throw new MWException( __METHOD__ . " can not verify a null section!\n" );
		}

		if( !isset($this->sectionData[$token]) ) {
			throw new MWException( sprintf(
				"'%s' without '%s' at line %s of %s\n",
				$this->section,
				$token,
				$this->lineNum,
				$this->file
			));
		}
		return true;
	}
}

/**
 * A class to delay execution of a parser test hooks.
 */
class DelayedParserTest {

	/** Initialized on construction */
	private $hooks;
	private $fnHooks;

	public function __construct() {
		$this->reset();
	}

	/**
	 * Init/reset or forgot about the current delayed test.
	 * Call to this will erase any hooks function that were pending.
	 */
	public function reset() {
		$this->hooks   = array();
		$this->fnHooks = array();
	}

	/**
	 * Called whenever we actually want to run the hook.
	 * Should be the case if we found the parserTest is not disabled 
	 */
	public function unleash( &$parserTest ) {
		if( !($parserTest instanceof ParserTest || $parserTest instanceof NewParserTest
		) ) {
			throw new MWException( __METHOD__ . " must be passed an instance of ParserTest or NewParserTest classes\n" );
		}

		# Trigger delayed hooks. Any failure will make us abort
		foreach( $this->hooks as $hook ) {
			$ret = $parserTest->requireHook( $hook );
			if( !$ret ) {
				return false;
			}
		}

		# Trigger delayed function hooks. Any failure will make us abort
		foreach( $this->fnHooks as $fnHook ) {
			$ret = $parserTest->requireFunctionHook( $fnHook );
			if( !$ret ) {
				return false;
			}
		}

		# Delayed execution was successful.
		return true;
	}

	/**
	 * Similar to ParserTest object but does not run anything
	 * Use unleash() to really execute the hook
	 */
	public function requireHook( $hook ) {
		$this->hooks[] = $hook;
	}
	/**
	 * Similar to ParserTest object but does not run anything
	 * Use unleash() to really execute the hook function
	 */
	public function requireFunctionHook( $fnHook ) {
		$this->fnHooks[] = $fnHook;
	}

}