--- /dev/null
+<?php
+/**
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License along
+ * with this program; if not, write to the Free Software Foundation, Inc.,
+ * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
+ * http://www.gnu.org/copyleft/gpl.html
+ *
+ * @file
+ * @ingroup Testing
+ */
+
+class DbTestPreviewer extends TestRecorder {
+ protected $filter; // /< Test name filter callback
+ 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
+ * @param IDatabase $db
+ * @param bool|string $filter
+ */
+ function __construct( $db, $filter = false ) {
+ $this->db = $db;
+ $this->filter = $filter;
+ }
+
+ /**
+ * Set up result recording; insert a record for the run with the date
+ * and all that fun stuff
+ */
+ function start() {
+ if ( !$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 = [];
+ }
+
+ function record( $test, ParserTestResult $result ) {
+ $this->results[$test['desc']] = $result->isSuccess() ? 1 : 0;
+ }
+
+ function report() {
+ if ( $this->prevRun ) {
+ // f = fail, p = pass, n = nonexistent
+ // codes show before then after
+ $table = [
+ '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 = [];
+
+ $res = $this->db->select( 'testitem', [ 'ti_name', 'ti_success' ],
+ [ 'ti_run' => $this->prevRun ], __METHOD__ );
+ $filter = $this->filter;
+
+ foreach ( $res as $row ) {
+ if ( !$filter || $filter( $row->ti_name ) ) {
+ $prevResults[$row->ti_name] = $row->ti_success;
+ }
+ }
+
+ $combined = array_keys( $this->results + $prevResults );
+
+ # Determine breakdown by change type
+ $breakdown = [];
+ 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";
+ }
+
+ /**
+ * 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).
+ * @param string $testname
+ * @param string $after
+ * @return string
+ */
+ 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)',
+ [ 'ti_name' => $testname ],
+ __METHOD__ );
+ $appear = $this->db->selectRow( 'testrun',
+ [ 'tr_date', 'tr_mw_version' ],
+ [ '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 = [
+ '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',
+ [ 'tr_date', 'tr_mw_version' ],
+ [ 'tr_id' => $changedRun ],
+ __METHOD__ );
+ $post = $this->db->selectRow( 'testrun',
+ [ 'tr_date', 'tr_mw_version' ],
+ [ "tr_id > " . $this->db->addQuotes( $changedRun ) ],
+ __METHOD__,
+ [ "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";
+ }
+}
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