Take a different tack on shared database tests

Tests for different drivers will have their own files, but all derive
from a common prototype test series where applicable, similar to the
existing arrangement for database function tests. However, the prototype
will reside with other test cases rather than in the library path. The
database function test series will hopefully be moved as well in time.

composer.json

@@ -42,7 +42,8 @@
     },
     "autoload-dev": {
         "psr-4": {
-            "JKingWeb\\Arsse\\Test\\": "tests/lib/"
+            "JKingWeb\\Arsse\\Test\\": "tests/lib/",
+            "JKingWeb\\Arsse\\TestCase\\": "tests/cases/"
         }
     }
 }

tests/cases/Db/BaseDriver.php

@@ -0,0 +1,357 @@
+<?php
+/** @license MIT
+ * Copyright 2017 J. King, Dustin Wilson et al.
+ * See LICENSE and AUTHORS files for details */
+
+declare(strict_types=1);
+namespace JKingWeb\Arsse\TestCase\Db;
+
+use JKingWeb\Arsse\Db\Statement;
+use JKingWeb\Arsse\Db\Result;
+
+
+abstract class BaseDriver extends \JKingWeb\Arsse\Test\AbstractTest {
+    protected $drv;
+    protected $interface;
+    protected $create;
+    protected $lock;
+    protected $setVersion;
+    protected $conf = [
+        'dbTimeoutExec' => 0.5,
+        'dbSQLite3Timeout' => 0,
+    ];
+    
+    public function setUp() {
+        $this->setConf($this->conf);
+        $this->interface = $this->getDbInterface($this->implementation);
+        if (!$this->interface) {
+            $this->markTestSkipped("$this->implementation database driver not available");
+        }
+        $this->drv = $this->getDbDriver($this->implementation);
+        $this->exec("DROP TABLE IF EXISTS arsse_test");
+        $this->exec("DROP TABLE IF EXISTS arsse_meta");
+        $this->exec("CREATE TABLE arsse_meta(key varchar(255) primary key not null, value text)");
+        $this->exec("INSERT INTO arsse_meta(key,value) values('schema_version','0')");
+    }
+
+    public function tearDown() {
+        unset($this->drv);
+        try {
+            $this->exec("ROLLBACK");
+        } catch(\Throwable $e) {
+        }
+        $this->exec("DROP TABLE IF EXISTS arsse_meta");
+        $this->exec("DROP TABLE IF EXISTS arsse_test");
+    }
+
+    protected function exec(string $q): bool {
+        // PDO implementation
+        $this->interface->exec($q);
+        return true;
+    }
+
+    protected function query(string $q) {
+        // PDO implementation
+        return $this->interface->query($q)->fetchColumn();
+    }
+
+    # TESTS 
+    
+    public function testFetchDriverName() {
+        $class = get_class($this->drv);
+        $this->assertTrue(strlen($class::driverName()) > 0);
+    }
+
+    public function testCheckCharacterSetAcceptability() {
+        $this->assertTrue($this->drv->charsetAcceptable());
+    }
+
+    public function testExecAValidStatement() {
+        $this->assertTrue($this->drv->exec($this->create));
+    }
+
+    public function testExecAnInvalidStatement() {
+        $this->assertException("engineErrorGeneral", "Db");
+        $this->drv->exec("And the meek shall inherit the earth...");
+    }
+
+    public function testExecMultipleStatements() {
+        $this->assertTrue($this->drv->exec("$this->create; INSERT INTO arsse_test(id) values(2112)"));
+        $this->assertEquals(2112, $this->query("SELECT id from arsse_test"));
+    }
+
+    public function testExecTimeout() {
+        $this->exec($this->create);
+        $this->exec($this->lock);
+        $this->assertException("general", "Db", "ExceptionTimeout");
+        $this->drv->exec($this->lock);
+    }
+
+    public function testExecConstraintViolation() {
+        $this->drv->exec("CREATE TABLE arsse_test(id varchar(255) not null)");
+        $this->assertException("constraintViolation", "Db", "ExceptionInput");
+        $this->drv->exec("INSERT INTO arsse_test default values");
+    }
+
+    public function testExecTypeViolation() {
+        $this->drv->exec($this->create);
+        $this->assertException("typeViolation", "Db", "ExceptionInput");
+        $this->drv->exec("INSERT INTO arsse_test(id) values('ook')");
+    }
+
+    public function testMakeAValidQuery() {
+        $this->assertInstanceOf(Result::class, $this->drv->query("SELECT 1"));
+    }
+
+    public function testMakeAnInvalidQuery() {
+        $this->assertException("engineErrorGeneral", "Db");
+        $this->drv->query("Apollo was astonished; Dionysus thought me mad");
+    }
+
+    public function testQueryTimeout() {
+        $this->exec($this->create);
+        $this->exec($this->lock);
+        $this->assertException("general", "Db", "ExceptionTimeout");
+        $this->drv->exec($this->lock);
+    }
+
+    public function testQueryConstraintViolation() {
+        $this->drv->exec("CREATE TABLE arsse_test(id integer not null)");
+        $this->assertException("constraintViolation", "Db", "ExceptionInput");
+        $this->drv->query("INSERT INTO arsse_test default values");
+    }
+
+    public function testQueryTypeViolation() {
+        $this->drv->exec($this->create);
+        $this->assertException("typeViolation", "Db", "ExceptionInput");
+        $this->drv->query("INSERT INTO arsse_test(id) values('ook')");
+    }
+
+    public function testPrepareAValidQuery() {
+        $s = $this->drv->prepare("SELECT ?, ?", "int", "int");
+        $this->assertInstanceOf(Statement::class, $s);
+    }
+
+    public function testPrepareAnInvalidQuery() {
+        $this->assertException("engineErrorGeneral", "Db");
+        $s = $this->drv->prepare("This is an invalid query", "int", "int")->run();
+    }
+
+    public function testCreateASavepoint() {
+        $this->assertEquals(1, $this->drv->savepointCreate());
+        $this->assertEquals(2, $this->drv->savepointCreate());
+        $this->assertEquals(3, $this->drv->savepointCreate());
+    }
+
+    public function testReleaseASavepoint() {
+        $this->assertEquals(1, $this->drv->savepointCreate());
+        $this->assertEquals(true, $this->drv->savepointRelease());
+        $this->assertException("savepointInvalid", "Db");
+        $this->drv->savepointRelease();
+    }
+
+    public function testUndoASavepoint() {
+        $this->assertEquals(1, $this->drv->savepointCreate());
+        $this->assertEquals(true, $this->drv->savepointUndo());
+        $this->assertException("savepointInvalid", "Db");
+        $this->drv->savepointUndo();
+    }
+
+    public function testManipulateSavepoints() {
+        $this->assertEquals(1, $this->drv->savepointCreate());
+        $this->assertEquals(2, $this->drv->savepointCreate());
+        $this->assertEquals(3, $this->drv->savepointCreate());
+        $this->assertEquals(4, $this->drv->savepointCreate());
+        $this->assertEquals(5, $this->drv->savepointCreate());
+        $this->assertTrue($this->drv->savepointUndo(3));
+        $this->assertFalse($this->drv->savepointRelease(4));
+        $this->assertEquals(6, $this->drv->savepointCreate());
+        $this->assertFalse($this->drv->savepointRelease(5));
+        $this->assertTrue($this->drv->savepointRelease(6));
+        $this->assertEquals(3, $this->drv->savepointCreate());
+        $this->assertTrue($this->drv->savepointRelease(2));
+        $this->assertException("savepointStale", "Db");
+        $this->drv->savepointRelease(2);
+    }
+
+    public function testManipulateSavepointsSomeMore() {
+        $this->assertEquals(1, $this->drv->savepointCreate());
+        $this->assertEquals(2, $this->drv->savepointCreate());
+        $this->assertEquals(3, $this->drv->savepointCreate());
+        $this->assertEquals(4, $this->drv->savepointCreate());
+        $this->assertTrue($this->drv->savepointRelease(2));
+        $this->assertFalse($this->drv->savepointUndo(3));
+        $this->assertException("savepointStale", "Db");
+        $this->drv->savepointUndo(2);
+    }
+
+    public function testBeginATransaction() {
+        $select = "SELECT count(*) FROM arsse_test";
+        $insert = "INSERT INTO arsse_test default values";
+        $this->drv->exec($this->create);
+        $tr = $this->drv->begin();
+        $this->drv->query($insert);
+        $this->assertEquals(1, $this->drv->query($select)->getValue());
+        $this->assertEquals(0, $this->query($select));
+        $this->drv->query($insert);
+        $this->assertEquals(2, $this->drv->query($select)->getValue());
+        $this->assertEquals(0, $this->query($select));
+    }
+
+    public function testCommitATransaction() {
+        $select = "SELECT count(*) FROM arsse_test";
+        $insert = "INSERT INTO arsse_test default values";
+        $this->drv->exec($this->create);
+        $tr = $this->drv->begin();
+        $this->drv->query($insert);
+        $this->assertEquals(1, $this->drv->query($select)->getValue());
+        $this->assertEquals(0, $this->query($select));
+        $tr->commit();
+        $this->assertEquals(1, $this->drv->query($select)->getValue());
+        $this->assertEquals(1, $this->query($select));
+    }
+
+    public function testRollbackATransaction() {
+        $select = "SELECT count(*) FROM arsse_test";
+        $insert = "INSERT INTO arsse_test default values";
+        $this->drv->exec($this->create);
+        $tr = $this->drv->begin();
+        $this->drv->query($insert);
+        $this->assertEquals(1, $this->drv->query($select)->getValue());
+        $this->assertEquals(0, $this->query($select));
+        $tr->rollback();
+        $this->assertEquals(0, $this->drv->query($select)->getValue());
+        $this->assertEquals(0, $this->query($select));
+    }
+
+    public function testBeginChainedTransactions() {
+        $select = "SELECT count(*) FROM arsse_test";
+        $insert = "INSERT INTO arsse_test default values";
+        $this->drv->exec($this->create);
+        $tr1 = $this->drv->begin();
+        $this->drv->query($insert);
+        $this->assertEquals(1, $this->drv->query($select)->getValue());
+        $this->assertEquals(0, $this->query($select));
+        $tr2 = $this->drv->begin();
+        $this->drv->query($insert);
+        $this->assertEquals(2, $this->drv->query($select)->getValue());
+        $this->assertEquals(0, $this->query($select));
+    }
+
+    public function testCommitChainedTransactions() {
+        $select = "SELECT count(*) FROM arsse_test";
+        $insert = "INSERT INTO arsse_test default values";
+        $this->drv->exec($this->create);
+        $tr1 = $this->drv->begin();
+        $this->drv->query($insert);
+        $this->assertEquals(1, $this->drv->query($select)->getValue());
+        $this->assertEquals(0, $this->query($select));
+        $tr2 = $this->drv->begin();
+        $this->drv->query($insert);
+        $this->assertEquals(2, $this->drv->query($select)->getValue());
+        $this->assertEquals(0, $this->query($select));
+        $tr2->commit();
+        $this->assertEquals(0, $this->query($select));
+        $tr1->commit();
+        $this->assertEquals(2, $this->query($select));
+    }
+
+    public function testCommitChainedTransactionsOutOfOrder() {
+        $select = "SELECT count(*) FROM arsse_test";
+        $insert = "INSERT INTO arsse_test default values";
+        $this->drv->exec($this->create);
+        $tr1 = $this->drv->begin();
+        $this->drv->query($insert);
+        $this->assertEquals(1, $this->drv->query($select)->getValue());
+        $this->assertEquals(0, $this->query($select));
+        $tr2 = $this->drv->begin();
+        $this->drv->query($insert);
+        $this->assertEquals(2, $this->drv->query($select)->getValue());
+        $this->assertEquals(0, $this->query($select));
+        $tr1->commit();
+        $this->assertEquals(2, $this->query($select));
+        $tr2->commit();
+    }
+
+    public function testRollbackChainedTransactions() {
+        $select = "SELECT count(*) FROM arsse_test";
+        $insert = "INSERT INTO arsse_test default values";
+        $this->drv->exec($this->create);
+        $tr1 = $this->drv->begin();
+        $this->drv->query($insert);
+        $this->assertEquals(1, $this->drv->query($select)->getValue());
+        $this->assertEquals(0, $this->query($select));
+        $tr2 = $this->drv->begin();
+        $this->drv->query($insert);
+        $this->assertEquals(2, $this->drv->query($select)->getValue());
+        $this->assertEquals(0, $this->query($select));
+        $tr2->rollback();
+        $this->assertEquals(1, $this->drv->query($select)->getValue());
+        $this->assertEquals(0, $this->query($select));
+        $tr1->rollback();
+        $this->assertEquals(0, $this->drv->query($select)->getValue());
+        $this->assertEquals(0, $this->query($select));
+    }
+
+    public function testRollbackChainedTransactionsOutOfOrder() {
+        $select = "SELECT count(*) FROM arsse_test";
+        $insert = "INSERT INTO arsse_test default values";
+        $this->drv->exec($this->create);
+        $tr1 = $this->drv->begin();
+        $this->drv->query($insert);
+        $this->assertEquals(1, $this->drv->query($select)->getValue());
+        $this->assertEquals(0, $this->query($select));
+        $tr2 = $this->drv->begin();
+        $this->drv->query($insert);
+        $this->assertEquals(2, $this->drv->query($select)->getValue());
+        $this->assertEquals(0, $this->query($select));
+        $tr1->rollback();
+        $this->assertEquals(0, $this->drv->query($select)->getValue());
+        $this->assertEquals(0, $this->query($select));
+        $tr2->rollback();
+        $this->assertEquals(0, $this->drv->query($select)->getValue());
+        $this->assertEquals(0, $this->query($select));
+    }
+
+    public function testPartiallyRollbackChainedTransactions() {
+        $select = "SELECT count(*) FROM arsse_test";
+        $insert = "INSERT INTO arsse_test default values";
+        $this->drv->exec($this->create);
+        $tr1 = $this->drv->begin();
+        $this->drv->query($insert);
+        $this->assertEquals(1, $this->drv->query($select)->getValue());
+        $this->assertEquals(0, $this->query($select));
+        $tr2 = $this->drv->begin();
+        $this->drv->query($insert);
+        $this->assertEquals(2, $this->drv->query($select)->getValue());
+        $this->assertEquals(0, $this->query($select));
+        $tr2->rollback();
+        $this->assertEquals(1, $this->drv->query($select)->getValue());
+        $this->assertEquals(0, $this->query($select));
+        $tr1->commit();
+        $this->assertEquals(1, $this->drv->query($select)->getValue());
+        $this->assertEquals(1, $this->query($select));
+    }
+
+    public function testFetchSchemaVersion() {
+        $this->assertSame(0, $this->drv->schemaVersion());
+        $this->drv->exec(str_replace("#", "1", $this->setVersion));
+        $this->assertSame(1, $this->drv->schemaVersion());
+        $this->drv->exec(str_replace("#", "2", $this->setVersion));
+        $this->assertSame(2, $this->drv->schemaVersion());
+    }
+
+    public function testLockTheDatabase() {
+        $this->drv->savepointCreate(true);
+        $this->assertException();
+        $this->exec($this->create);
+    }
+
+    public function testUnlockTheDatabase() {
+        $this->drv->savepointCreate(true);
+        $this->drv->savepointRelease();
+        $this->drv->savepointCreate(true);
+        $this->drv->savepointUndo();
+        $this->assertTrue($this->exec($this->create));
+    }
+}

tests/cases/Db/SQLite3/TestDriver.php

@@ -6,338 +6,96 @@
 declare(strict_types=1);
 namespace JKingWeb\Arsse\TestCase\Db\SQLite3;
 
-use JKingWeb\Arsse\Arsse;
-use JKingWeb\Arsse\Conf;
-use JKingWeb\Arsse\Database;
-use JKingWeb\Arsse\Db\SQLite3\Driver;
-use JKingWeb\Arsse\Db\Result;
-use JKingWeb\Arsse\Db\Statement;
-
 /**
  * @covers \JKingWeb\Arsse\Db\SQLite3\Driver<extended>
  * @covers \JKingWeb\Arsse\Db\SQLite3\ExceptionBuilder */
-class TestDriver extends \JKingWeb\Arsse\Test\AbstractTest {
+class TestDriver extends \JKingWeb\Arsse\TestCase\Db\BaseDriver {
-    protected $data;
+    protected $implementation = "SQLite 3";
-    protected $drv;
+    protected $create = "CREATE TABLE arsse_test(id integer primary key)";
-    protected $ch;
+    protected $lock = "BEGIN EXCLUSIVE TRANSACTION";
-
+    protected $setVersion = "PRAGMA user_version=#";
-    public function setUp() {
+    protected static $file;
-        if (!Driver::requirementsMet()) {
-            $this->markTestSkipped("SQLite extension not loaded");
-        }
-        $this->clearData();
-        $this->setConf([
-            'dbDriver' => Driver::class,
-            'dbSQLite3Timeout' => 0,
-            'dbSQLite3File' => tempnam(sys_get_temp_dir(), 'ook'),
-        ]);
-        $this->drv = new Driver();
-        $this->ch = new \SQLite3(Arsse::$conf->dbSQLite3File);
-        $this->ch->enableExceptions(true);
-    }
-
-    public function tearDown() {
-        unset($this->drv);
-        unset($this->ch);
-        if (isset(Arsse::$conf)) {
-            unlink(Arsse::$conf->dbSQLite3File);
-        }
-        $this->clearData();
-    }
-
-    public function testFetchDriverName() {
-        $class = Arsse::$conf->dbDriver;
-        $this->assertTrue(strlen($class::driverName()) > 0);
-    }
-
-    public function testCheckCharacterSetAcceptability() {
-        $this->assertTrue($this->drv->charsetAcceptable());
-    }
-
-    public function testExecAValidStatement() {
-        $this->assertTrue($this->drv->exec("CREATE TABLE test(id integer primary key)"));
-    }
-
-    public function testExecAnInvalidStatement() {
-        $this->assertException("engineErrorGeneral", "Db");
-        $this->drv->exec("And the meek shall inherit the earth...");
-    }
-
-    public function testExecMultipleStatements() {
-        $this->assertTrue($this->drv->exec("CREATE TABLE test(id integer primary key); INSERT INTO test(id) values(2112)"));
-        $this->assertEquals(2112, $this->ch->querySingle("SELECT id from test"));
-    }
-
-    public function testExecTimeout() {
-        $this->ch->exec("BEGIN EXCLUSIVE TRANSACTION");
-        $this->assertException("general", "Db", "ExceptionTimeout");
-        $this->drv->exec("CREATE TABLE test(id integer primary key)");
-    }
-
-    public function testExecConstraintViolation() {
-        $this->drv->exec("CREATE TABLE test(id integer not null)");
-        $this->assertException("constraintViolation", "Db", "ExceptionInput");
-        $this->drv->exec("INSERT INTO test(id) values(null)");
-    }
 
-    public function testExecTypeViolation() {
+    public static function setUpBeforeClass() {
-        $this->drv->exec("CREATE TABLE test(id integer primary key)");
+        self::$file = tempnam(sys_get_temp_dir(), 'ook');
-        $this->assertException("typeViolation", "Db", "ExceptionInput");
-        $this->drv->exec("INSERT INTO test(id) values('ook')");
     }
 
-    public function testMakeAValidQuery() {
+    public static function tearDownAfterClass() {
-        $this->assertInstanceOf(Result::class, $this->drv->query("SELECT 1"));
+        @unlink(self::$file);
+        self::$file = null;
     }
-
+    
-    public function testMakeAnInvalidQuery() {
+    public function setUp() {
-        $this->assertException("engineErrorGeneral", "Db");
+        $this->conf['dbSQLite3File'] = self::$file;
-        $this->drv->query("Apollo was astonished; Dionysus thought me mad");
+        parent::setUp();
-    }
+        $this->exec("PRAGMA user_version=0");
-
-    public function testQueryTimeout() {
-        $this->ch->exec("BEGIN EXCLUSIVE TRANSACTION");
-        $this->assertException("general", "Db", "ExceptionTimeout");
-        $this->drv->query("CREATE TABLE test(id integer primary key)");
-    }
-
-    public function testQueryConstraintViolation() {
-        $this->drv->exec("CREATE TABLE test(id integer not null)");
-        $this->assertException("constraintViolation", "Db", "ExceptionInput");
-        $this->drv->query("INSERT INTO test(id) values(null)");
-    }
-
-    public function testQueryTypeViolation() {
-        $this->drv->exec("CREATE TABLE test(id integer primary key)");
-        $this->assertException("typeViolation", "Db", "ExceptionInput");
-        $this->drv->query("INSERT INTO test(id) values('ook')");
-    }
-
-    public function testPrepareAValidQuery() {
-        $s = $this->drv->prepare("SELECT ?, ?", "int", "int");
-        $this->assertInstanceOf(Statement::class, $s);
-    }
-
-    public function testPrepareAnInvalidQuery() {
-        $this->assertException("engineErrorGeneral", "Db");
-        $s = $this->drv->prepare("This is an invalid query", "int", "int");
-    }
-
-    public function testCreateASavepoint() {
-        $this->assertEquals(1, $this->drv->savepointCreate());
-        $this->assertEquals(2, $this->drv->savepointCreate());
-        $this->assertEquals(3, $this->drv->savepointCreate());
-    }
-
-    public function testReleaseASavepoint() {
-        $this->assertEquals(1, $this->drv->savepointCreate());
-        $this->assertEquals(true, $this->drv->savepointRelease());
-        $this->assertException("savepointInvalid", "Db");
-        $this->drv->savepointRelease();
-    }
-
-    public function testUndoASavepoint() {
-        $this->assertEquals(1, $this->drv->savepointCreate());
-        $this->assertEquals(true, $this->drv->savepointUndo());
-        $this->assertException("savepointInvalid", "Db");
-        $this->drv->savepointUndo();
-    }
-
-    public function testManipulateSavepoints() {
-        $this->assertEquals(1, $this->drv->savepointCreate());
-        $this->assertEquals(2, $this->drv->savepointCreate());
-        $this->assertEquals(3, $this->drv->savepointCreate());
-        $this->assertEquals(4, $this->drv->savepointCreate());
-        $this->assertEquals(5, $this->drv->savepointCreate());
-        $this->assertTrue($this->drv->savepointUndo(3));
-        $this->assertFalse($this->drv->savepointRelease(4));
-        $this->assertEquals(6, $this->drv->savepointCreate());
-        $this->assertFalse($this->drv->savepointRelease(5));
-        $this->assertTrue($this->drv->savepointRelease(6));
-        $this->assertEquals(3, $this->drv->savepointCreate());
-        $this->assertTrue($this->drv->savepointRelease(2));
-        $this->assertException("savepointStale", "Db");
-        $this->drv->savepointRelease(2);
-    }
-
-    public function testManipulateSavepointsSomeMore() {
-        $this->assertEquals(1, $this->drv->savepointCreate());
-        $this->assertEquals(2, $this->drv->savepointCreate());
-        $this->assertEquals(3, $this->drv->savepointCreate());
-        $this->assertEquals(4, $this->drv->savepointCreate());
-        $this->assertTrue($this->drv->savepointRelease(2));
-        $this->assertFalse($this->drv->savepointUndo(3));
-        $this->assertException("savepointStale", "Db");
-        $this->drv->savepointUndo(2);
-    }
-
-    public function testBeginATransaction() {
-        $select = "SELECT count(*) FROM test";
-        $insert = "INSERT INTO test(id) values(null)";
-        $this->drv->exec("CREATE TABLE test(id integer primary key)");
-        $tr = $this->drv->begin();
-        $this->drv->query($insert);
-        $this->assertEquals(1, $this->drv->query($select)->getValue());
-        $this->assertEquals(0, $this->ch->querySingle($select));
-        $this->drv->query($insert);
-        $this->assertEquals(2, $this->drv->query($select)->getValue());
-        $this->assertEquals(0, $this->ch->querySingle($select));
-    }
-
-    public function testCommitATransaction() {
-        $select = "SELECT count(*) FROM test";
-        $insert = "INSERT INTO test(id) values(null)";
-        $this->drv->exec("CREATE TABLE test(id integer primary key)");
-        $tr = $this->drv->begin();
-        $this->drv->query($insert);
-        $this->assertEquals(1, $this->drv->query($select)->getValue());
-        $this->assertEquals(0, $this->ch->querySingle($select));
-        $tr->commit();
-        $this->assertEquals(1, $this->drv->query($select)->getValue());
-        $this->assertEquals(1, $this->ch->querySingle($select));
-    }
-
-    public function testRollbackATransaction() {
-        $select = "SELECT count(*) FROM test";
-        $insert = "INSERT INTO test(id) values(null)";
-        $this->drv->exec("CREATE TABLE test(id integer primary key)");
-        $tr = $this->drv->begin();
-        $this->drv->query($insert);
-        $this->assertEquals(1, $this->drv->query($select)->getValue());
-        $this->assertEquals(0, $this->ch->querySingle($select));
-        $tr->rollback();
-        $this->assertEquals(0, $this->drv->query($select)->getValue());
-        $this->assertEquals(0, $this->ch->querySingle($select));
-    }
-
-    public function testBeginChainedTransactions() {
-        $select = "SELECT count(*) FROM test";
-        $insert = "INSERT INTO test(id) values(null)";
-        $this->drv->exec("CREATE TABLE test(id integer primary key)");
-        $tr1 = $this->drv->begin();
-        $this->drv->query($insert);
-        $this->assertEquals(1, $this->drv->query($select)->getValue());
-        $this->assertEquals(0, $this->ch->querySingle($select));
-        $tr2 = $this->drv->begin();
-        $this->drv->query($insert);
-        $this->assertEquals(2, $this->drv->query($select)->getValue());
-        $this->assertEquals(0, $this->ch->querySingle($select));
-    }
-
-    public function testCommitChainedTransactions() {
-        $select = "SELECT count(*) FROM test";
-        $insert = "INSERT INTO test(id) values(null)";
-        $this->drv->exec("CREATE TABLE test(id integer primary key)");
-        $tr1 = $this->drv->begin();
-        $this->drv->query($insert);
-        $this->assertEquals(1, $this->drv->query($select)->getValue());
-        $this->assertEquals(0, $this->ch->querySingle($select));
-        $tr2 = $this->drv->begin();
-        $this->drv->query($insert);
-        $this->assertEquals(2, $this->drv->query($select)->getValue());
-        $this->assertEquals(0, $this->ch->querySingle($select));
-        $tr2->commit();
-        $this->assertEquals(0, $this->ch->querySingle($select));
-        $tr1->commit();
-        $this->assertEquals(2, $this->ch->querySingle($select));
-    }
-
-    public function testCommitChainedTransactionsOutOfOrder() {
-        $select = "SELECT count(*) FROM test";
-        $insert = "INSERT INTO test(id) values(null)";
-        $this->drv->exec("CREATE TABLE test(id integer primary key)");
-        $tr1 = $this->drv->begin();
-        $this->drv->query($insert);
-        $this->assertEquals(1, $this->drv->query($select)->getValue());
-        $this->assertEquals(0, $this->ch->querySingle($select));
-        $tr2 = $this->drv->begin();
-        $this->drv->query($insert);
-        $this->assertEquals(2, $this->drv->query($select)->getValue());
-        $this->assertEquals(0, $this->ch->querySingle($select));
-        $tr1->commit();
-        $this->assertEquals(2, $this->ch->querySingle($select));
-        $tr2->commit();
-    }
-
-    public function testRollbackChainedTransactions() {
-        $select = "SELECT count(*) FROM test";
-        $insert = "INSERT INTO test(id) values(null)";
-        $this->drv->exec("CREATE TABLE test(id integer primary key)");
-        $tr1 = $this->drv->begin();
-        $this->drv->query($insert);
-        $this->assertEquals(1, $this->drv->query($select)->getValue());
-        $this->assertEquals(0, $this->ch->querySingle($select));
-        $tr2 = $this->drv->begin();
-        $this->drv->query($insert);
-        $this->assertEquals(2, $this->drv->query($select)->getValue());
-        $this->assertEquals(0, $this->ch->querySingle($select));
-        $tr2->rollback();
-        $this->assertEquals(1, $this->drv->query($select)->getValue());
-        $this->assertEquals(0, $this->ch->querySingle($select));
-        $tr1->rollback();
-        $this->assertEquals(0, $this->drv->query($select)->getValue());
-        $this->assertEquals(0, $this->ch->querySingle($select));
-    }
-
-    public function testRollbackChainedTransactionsOutOfOrder() {
-        $select = "SELECT count(*) FROM test";
-        $insert = "INSERT INTO test(id) values(null)";
-        $this->drv->exec("CREATE TABLE test(id integer primary key)");
-        $tr1 = $this->drv->begin();
-        $this->drv->query($insert);
-        $this->assertEquals(1, $this->drv->query($select)->getValue());
-        $this->assertEquals(0, $this->ch->querySingle($select));
-        $tr2 = $this->drv->begin();
-        $this->drv->query($insert);
-        $this->assertEquals(2, $this->drv->query($select)->getValue());
-        $this->assertEquals(0, $this->ch->querySingle($select));
-        $tr1->rollback();
-        $this->assertEquals(0, $this->drv->query($select)->getValue());
-        $this->assertEquals(0, $this->ch->querySingle($select));
-        $tr2->rollback();
-        $this->assertEquals(0, $this->drv->query($select)->getValue());
-        $this->assertEquals(0, $this->ch->querySingle($select));
     }
 
-    public function testPartiallyRollbackChainedTransactions() {
+    public function tearDown() {
-        $select = "SELECT count(*) FROM test";
+        parent::tearDown();
-        $insert = "INSERT INTO test(id) values(null)";
+        $this->exec("PRAGMA user_version=0");
-        $this->drv->exec("CREATE TABLE test(id integer primary key)");
+        $this->interface->close();
-        $tr1 = $this->drv->begin();
+        unset($this->interface);
-        $this->drv->query($insert);
-        $this->assertEquals(1, $this->drv->query($select)->getValue());
-        $this->assertEquals(0, $this->ch->querySingle($select));
-        $tr2 = $this->drv->begin();
-        $this->drv->query($insert);
-        $this->assertEquals(2, $this->drv->query($select)->getValue());
-        $this->assertEquals(0, $this->ch->querySingle($select));
-        $tr2->rollback();
-        $this->assertEquals(1, $this->drv->query($select)->getValue());
-        $this->assertEquals(0, $this->ch->querySingle($select));
-        $tr1->commit();
-        $this->assertEquals(1, $this->drv->query($select)->getValue());
-        $this->assertEquals(1, $this->ch->querySingle($select));
     }
 
-    public function testFetchSchemaVersion() {
+    protected function exec(string $q): bool {
-        $this->assertSame(0, $this->drv->schemaVersion());
+        $this->interface->exec($q);
-        $this->drv->exec("PRAGMA user_version=1");
+        return true;
-        $this->assertSame(1, $this->drv->schemaVersion());
-        $this->drv->exec("PRAGMA user_version=2");
-        $this->assertSame(2, $this->drv->schemaVersion());
     }
 
-    public function testLockTheDatabase() {
+    protected function query(string $q) {
-        $this->drv->savepointCreate(true);
+        return $this->interface->querySingle($q);
-        $this->assertException();
-        $this->ch->exec("CREATE TABLE test(id integer primary key)");
     }
 
-    public function testUnlockTheDatabase() {
+    public function provideDrivers() {
-        $this->drv->savepointCreate(true);
+        $this->clearData();
-        $this->drv->savepointRelease();
+        $this->setConf([
-        $this->drv->savepointCreate(true);
+            'dbTimeoutExec' => 0.5,
-        $this->drv->savepointUndo();
+            'dbSQLite3Timeout' => 0,
-        $this->assertSame(true, $this->ch->exec("CREATE TABLE test(id integer primary key)"));
+            'dbSQLite3File' => tempnam(sys_get_temp_dir(), 'ook'),
+        ]);
+        $i = $this->provideDbInterfaces();
+        $d = $this->provideDbDrivers();
+        $pdoExec = function (string $q) {
+            $this->interface->exec($q);
+            return true;
+        };
+        $pdoQuery = function (string $q) {
+            return $this->interface->query($q)->fetchColumn();
+        };
+        return [
+            'SQLite 3' => [
+                $i['SQLite 3']['interface'], 
+                $d['SQLite 3'], 
+                "CREATE TABLE arsse_test(id integer primary key)", 
+                "BEGIN EXCLUSIVE TRANSACTION",
+                "PRAGMA user_version=#",
+                function (string $q) {
+                    $this->interface->exec($q);
+                    return true;
+                },
+                function (string $q) {
+                    return $this->interface->querySingle($q);
+                },
+            ],
+            'PDO SQLite 3' => [
+                $i['PDO SQLite 3']['interface'], 
+                $d['PDO SQLite 3'], 
+                "CREATE TABLE arsse_test(id integer primary key)", 
+                "BEGIN EXCLUSIVE TRANSACTION",
+                "PRAGMA user_version=#",
+                $pdoExec,
+                $pdoQuery,
+            ],
+            'PDO PostgreSQL' => [
+                $i['PDO PostgreSQL']['interface'], 
+                $d['PDO PostgreSQL'], 
+                "CREATE TABLE arsse_test(id bigserial primary key)", 
+                "BEGIN; LOCK TABLE arsse_test IN EXCLUSIVE MODE NOWAIT",
+                "UPDATE arsse_meta set value = '#' where key = 'schema_version'",
+                $pdoExec,
+                $pdoQuery,
+            ],
+        ];
     }
 }

tests/cases/Db/SQLite3PDO/TestDriver.php

@@ -6,339 +6,35 @@
 declare(strict_types=1);
 namespace JKingWeb\Arsse\TestCase\Db\SQLite3PDO;
 
-use JKingWeb\Arsse\Arsse;
-use JKingWeb\Arsse\Conf;
-use JKingWeb\Arsse\Database;
-use JKingWeb\Arsse\Db\SQLite3\PDODriver;
-use JKingWeb\Arsse\Db\Result;
-use JKingWeb\Arsse\Db\Statement;
-
 /**
  * @covers \JKingWeb\Arsse\Db\SQLite3\PDODriver<extended>
  * @covers \JKingWeb\Arsse\Db\PDODriver
  * @covers \JKingWeb\Arsse\Db\PDOError */
-class TestDriver extends \JKingWeb\Arsse\Test\AbstractTest {
+class TestDriver extends \JKingWeb\Arsse\TestCase\Db\BaseDriver {
-    protected $data;
+    protected $implementation = "PDO SQLite 3";
-    protected $drv;
+    protected $create = "CREATE TABLE arsse_test(id integer primary key)";
-    protected $ch;
+    protected $lock = "BEGIN EXCLUSIVE TRANSACTION";
-
+    protected $setVersion = "PRAGMA user_version=#";
-    public function setUp() {
+    protected static $file;
-        if (!PDODriver::requirementsMet()) {
-            $this->markTestSkipped("PDO-SQLite extension not loaded");
-        }
-        $this->clearData();
-        $this->setConf([
-            'dbDriver' => PDODriver::class,
-            'dbSQLite3Timeout' => 0,
-            'dbSQLite3File' => tempnam(sys_get_temp_dir(), 'ook'),
-        ]);
-        $this->drv = new PDODriver();
-        $this->ch = new \PDO("sqlite:".Arsse::$conf->dbSQLite3File, "", "", [\PDO::ATTR_ERRMODE => \PDO::ERRMODE_EXCEPTION]);
-    }
-
-    public function tearDown() {
-        unset($this->drv);
-        unset($this->ch);
-        if (isset(Arsse::$conf)) {
-            unlink(Arsse::$conf->dbSQLite3File);
-        }
-        $this->clearData();
-    }
-
-    public function testFetchDriverName() {
-        $class = Arsse::$conf->dbDriver;
-        $this->assertTrue(strlen($class::driverName()) > 0);
-    }
-
-    public function testCheckCharacterSetAcceptability() {
-        $this->assertTrue($this->drv->charsetAcceptable());
-    }
-
-    public function testExecAValidStatement() {
-        $this->assertTrue($this->drv->exec("CREATE TABLE test(id integer primary key)"));
-    }
-
-    public function testExecAnInvalidStatement() {
-        $this->assertException("engineErrorGeneral", "Db");
-        $this->drv->exec("And the meek shall inherit the earth...");
-    }
-
-    public function testExecMultipleStatements() {
-        $this->assertTrue($this->drv->exec("CREATE TABLE test(id integer primary key); INSERT INTO test(id) values(2112)"));
-        $this->assertEquals(2112, $this->ch->query("SELECT id from test")->fetchColumn());
-    }
-
-    public function testExecTimeout() {
-        $this->ch->exec("BEGIN EXCLUSIVE TRANSACTION");
-        $this->assertException("general", "Db", "ExceptionTimeout");
-        $this->drv->exec("CREATE TABLE test(id integer primary key)");
-    }
-
-    public function testExecConstraintViolation() {
-        $this->drv->exec("CREATE TABLE test(id integer not null)");
-        $this->assertException("constraintViolation", "Db", "ExceptionInput");
-        $this->drv->exec("INSERT INTO test(id) values(null)");
-    }
-
-    public function testExecTypeViolation() {
-        $this->drv->exec("CREATE TABLE test(id integer primary key)");
-        $this->assertException("typeViolation", "Db", "ExceptionInput");
-        $this->drv->exec("INSERT INTO test(id) values('ook')");
-    }
-
-    public function testMakeAValidQuery() {
-        $this->assertInstanceOf(Result::class, $this->drv->query("SELECT 1"));
-    }
-
-    public function testMakeAnInvalidQuery() {
-        $this->assertException("engineErrorGeneral", "Db");
-        $this->drv->query("Apollo was astonished; Dionysus thought me mad");
-    }
-
-    public function testQueryTimeout() {
-        $this->ch->exec("BEGIN EXCLUSIVE TRANSACTION");
-        $this->assertException("general", "Db", "ExceptionTimeout");
-        $this->drv->query("CREATE TABLE test(id integer primary key)");
-    }
-
-    public function testQueryConstraintViolation() {
-        $this->drv->exec("CREATE TABLE test(id integer not null)");
-        $this->assertException("constraintViolation", "Db", "ExceptionInput");
-        $this->drv->query("INSERT INTO test(id) values(null)");
-    }
-
-    public function testQueryTypeViolation() {
-        $this->drv->exec("CREATE TABLE test(id integer primary key)");
-        $this->assertException("typeViolation", "Db", "ExceptionInput");
-        $this->drv->query("INSERT INTO test(id) values('ook')");
-    }
 
-    public function testPrepareAValidQuery() {
+    public static function setUpBeforeClass() {
-        $s = $this->drv->prepare("SELECT ?, ?", "int", "int");
+        self::$file = tempnam(sys_get_temp_dir(), 'ook');
-        $this->assertInstanceOf(Statement::class, $s);
     }
 
-    public function testPrepareAnInvalidQuery() {
+    public static function tearDownAfterClass() {
-        $this->assertException("engineErrorGeneral", "Db");
+        @unlink(self::$file);
-        $s = $this->drv->prepare("This is an invalid query", "int", "int");
+        self::$file = null;
     }
-
+    
-    public function testCreateASavepoint() {
+    public function setUp() {
-        $this->assertEquals(1, $this->drv->savepointCreate());
+        $this->conf['dbSQLite3File'] = self::$file;
-        $this->assertEquals(2, $this->drv->savepointCreate());
+        parent::setUp();
-        $this->assertEquals(3, $this->drv->savepointCreate());
+        $this->exec("PRAGMA user_version=0");
-    }
-
-    public function testReleaseASavepoint() {
-        $this->assertEquals(1, $this->drv->savepointCreate());
-        $this->assertEquals(true, $this->drv->savepointRelease());
-        $this->assertException("savepointInvalid", "Db");
-        $this->drv->savepointRelease();
-    }
-
-    public function testUndoASavepoint() {
-        $this->assertEquals(1, $this->drv->savepointCreate());
-        $this->assertEquals(true, $this->drv->savepointUndo());
-        $this->assertException("savepointInvalid", "Db");
-        $this->drv->savepointUndo();
-    }
-
-    public function testManipulateSavepoints() {
-        $this->assertEquals(1, $this->drv->savepointCreate());
-        $this->assertEquals(2, $this->drv->savepointCreate());
-        $this->assertEquals(3, $this->drv->savepointCreate());
-        $this->assertEquals(4, $this->drv->savepointCreate());
-        $this->assertEquals(5, $this->drv->savepointCreate());
-        $this->assertTrue($this->drv->savepointUndo(3));
-        $this->assertFalse($this->drv->savepointRelease(4));
-        $this->assertEquals(6, $this->drv->savepointCreate());
-        $this->assertFalse($this->drv->savepointRelease(5));
-        $this->assertTrue($this->drv->savepointRelease(6));
-        $this->assertEquals(3, $this->drv->savepointCreate());
-        $this->assertTrue($this->drv->savepointRelease(2));
-        $this->assertException("savepointStale", "Db");
-        $this->drv->savepointRelease(2);
-    }
-
-    public function testManipulateSavepointsSomeMore() {
-        $this->assertEquals(1, $this->drv->savepointCreate());
-        $this->assertEquals(2, $this->drv->savepointCreate());
-        $this->assertEquals(3, $this->drv->savepointCreate());
-        $this->assertEquals(4, $this->drv->savepointCreate());
-        $this->assertTrue($this->drv->savepointRelease(2));
-        $this->assertFalse($this->drv->savepointUndo(3));
-        $this->assertException("savepointStale", "Db");
-        $this->drv->savepointUndo(2);
-    }
-
-    public function testBeginATransaction() {
-        $select = "SELECT count(*) FROM test";
-        $insert = "INSERT INTO test(id) values(null)";
-        $this->drv->exec("CREATE TABLE test(id integer primary key)");
-        $tr = $this->drv->begin();
-        $this->drv->query($insert);
-        $this->assertEquals(1, $this->drv->query($select)->getValue());
-        $this->assertEquals(0, $this->ch->query($select)->fetchColumn());
-        $this->drv->query($insert);
-        $this->assertEquals(2, $this->drv->query($select)->getValue());
-        $this->assertEquals(0, $this->ch->query($select)->fetchColumn());
-    }
-
-    public function testCommitATransaction() {
-        $select = "SELECT count(*) FROM test";
-        $insert = "INSERT INTO test(id) values(null)";
-        $this->drv->exec("CREATE TABLE test(id integer primary key)");
-        $tr = $this->drv->begin();
-        $this->drv->query($insert);
-        $this->assertEquals(1, $this->drv->query($select)->getValue());
-        $this->assertEquals(0, $this->ch->query($select)->fetchColumn());
-        $tr->commit();
-        $this->assertEquals(1, $this->drv->query($select)->getValue());
-        $this->assertEquals(1, $this->ch->query($select)->fetchColumn());
-    }
-
-    public function testRollbackATransaction() {
-        $select = "SELECT count(*) FROM test";
-        $insert = "INSERT INTO test(id) values(null)";
-        $this->drv->exec("CREATE TABLE test(id integer primary key)");
-        $tr = $this->drv->begin();
-        $this->drv->query($insert);
-        $this->assertEquals(1, $this->drv->query($select)->getValue());
-        $this->assertEquals(0, $this->ch->query($select)->fetchColumn());
-        $tr->rollback();
-        $this->assertEquals(0, $this->drv->query($select)->getValue());
-        $this->assertEquals(0, $this->ch->query($select)->fetchColumn());
-    }
-
-    public function testBeginChainedTransactions() {
-        $select = "SELECT count(*) FROM test";
-        $insert = "INSERT INTO test(id) values(null)";
-        $this->drv->exec("CREATE TABLE test(id integer primary key)");
-        $tr1 = $this->drv->begin();
-        $this->drv->query($insert);
-        $this->assertEquals(1, $this->drv->query($select)->getValue());
-        $this->assertEquals(0, $this->ch->query($select)->fetchColumn());
-        $tr2 = $this->drv->begin();
-        $this->drv->query($insert);
-        $this->assertEquals(2, $this->drv->query($select)->getValue());
-        $this->assertEquals(0, $this->ch->query($select)->fetchColumn());
-    }
-
-    public function testCommitChainedTransactions() {
-        $select = "SELECT count(*) FROM test";
-        $insert = "INSERT INTO test(id) values(null)";
-        $this->drv->exec("CREATE TABLE test(id integer primary key)");
-        $tr1 = $this->drv->begin();
-        $this->drv->query($insert);
-        $this->assertEquals(1, $this->drv->query($select)->getValue());
-        $this->assertEquals(0, $this->ch->query($select)->fetchColumn());
-        $tr2 = $this->drv->begin();
-        $this->drv->query($insert);
-        $this->assertEquals(2, $this->drv->query($select)->getValue());
-        $this->assertEquals(0, $this->ch->query($select)->fetchColumn());
-        $tr2->commit();
-        $this->assertEquals(0, $this->ch->query($select)->fetchColumn());
-        $tr1->commit();
-        $this->assertEquals(2, $this->ch->query($select)->fetchColumn());
-    }
-
-    public function testCommitChainedTransactionsOutOfOrder() {
-        $select = "SELECT count(*) FROM test";
-        $insert = "INSERT INTO test(id) values(null)";
-        $this->drv->exec("CREATE TABLE test(id integer primary key)");
-        $tr1 = $this->drv->begin();
-        $this->drv->query($insert);
-        $this->assertEquals(1, $this->drv->query($select)->getValue());
-        $this->assertEquals(0, $this->ch->query($select)->fetchColumn());
-        $tr2 = $this->drv->begin();
-        $this->drv->query($insert);
-        $this->assertEquals(2, $this->drv->query($select)->getValue());
-        $this->assertEquals(0, $this->ch->query($select)->fetchColumn());
-        $tr1->commit();
-        $this->assertEquals(2, $this->ch->query($select)->fetchColumn());
-        $tr2->commit();
-    }
-
-    public function testRollbackChainedTransactions() {
-        $select = "SELECT count(*) FROM test";
-        $insert = "INSERT INTO test(id) values(null)";
-        $this->drv->exec("CREATE TABLE test(id integer primary key)");
-        $tr1 = $this->drv->begin();
-        $this->drv->query($insert);
-        $this->assertEquals(1, $this->drv->query($select)->getValue());
-        $this->assertEquals(0, $this->ch->query($select)->fetchColumn());
-        $tr2 = $this->drv->begin();
-        $this->drv->query($insert);
-        $this->assertEquals(2, $this->drv->query($select)->getValue());
-        $this->assertEquals(0, $this->ch->query($select)->fetchColumn());
-        $tr2->rollback();
-        $this->assertEquals(1, $this->drv->query($select)->getValue());
-        $this->assertEquals(0, $this->ch->query($select)->fetchColumn());
-        $tr1->rollback();
-        $this->assertEquals(0, $this->drv->query($select)->getValue());
-        $this->assertEquals(0, $this->ch->query($select)->fetchColumn());
-    }
-
-    public function testRollbackChainedTransactionsOutOfOrder() {
-        $select = "SELECT count(*) FROM test";
-        $insert = "INSERT INTO test(id) values(null)";
-        $this->drv->exec("CREATE TABLE test(id integer primary key)");
-        $tr1 = $this->drv->begin();
-        $this->drv->query($insert);
-        $this->assertEquals(1, $this->drv->query($select)->getValue());
-        $this->assertEquals(0, $this->ch->query($select)->fetchColumn());
-        $tr2 = $this->drv->begin();
-        $this->drv->query($insert);
-        $this->assertEquals(2, $this->drv->query($select)->getValue());
-        $this->assertEquals(0, $this->ch->query($select)->fetchColumn());
-        $tr1->rollback();
-        $this->assertEquals(0, $this->drv->query($select)->getValue());
-        $this->assertEquals(0, $this->ch->query($select)->fetchColumn());
-        $tr2->rollback();
-        $this->assertEquals(0, $this->drv->query($select)->getValue());
-        $this->assertEquals(0, $this->ch->query($select)->fetchColumn());
-    }
-
-    public function testPartiallyRollbackChainedTransactions() {
-        $select = "SELECT count(*) FROM test";
-        $insert = "INSERT INTO test(id) values(null)";
-        $this->drv->exec("CREATE TABLE test(id integer primary key)");
-        $tr1 = $this->drv->begin();
-        $this->drv->query($insert);
-        $this->assertEquals(1, $this->drv->query($select)->getValue());
-        $this->assertEquals(0, $this->ch->query($select)->fetchColumn());
-        $tr2 = $this->drv->begin();
-        $this->drv->query($insert);
-        $this->assertEquals(2, $this->drv->query($select)->getValue());
-        $this->assertEquals(0, $this->ch->query($select)->fetchColumn());
-        $tr2->rollback();
-        $this->assertEquals(1, $this->drv->query($select)->getValue());
-        $this->assertEquals(0, $this->ch->query($select)->fetchColumn());
-        $tr1->commit();
-        $this->assertEquals(1, $this->drv->query($select)->getValue());
-        $this->assertEquals(1, $this->ch->query($select)->fetchColumn());
-    }
-
-    public function testFetchSchemaVersion() {
-        $this->assertSame(0, $this->drv->schemaVersion());
-        $this->drv->exec("PRAGMA user_version=1");
-        $this->assertSame(1, $this->drv->schemaVersion());
-        $this->drv->exec("PRAGMA user_version=2");
-        $this->assertSame(2, $this->drv->schemaVersion());
-    }
-
-    public function testLockTheDatabase() {
-        $this->drv->savepointCreate(true);
-        $this->ch->exec("PRAGMA busy_timeout = 0");
-        $this->assertException();
-        $this->ch->exec("CREATE TABLE test(id integer primary key)");
     }
 
-    public function testUnlockTheDatabase() {
+    public function tearDown() {
-        $this->drv->savepointCreate(true);
+        parent::tearDown();
-        $this->drv->savepointRelease();
+        $this->exec("PRAGMA user_version=0");
-        $this->drv->savepointCreate(true);
+        unset($this->interface);
-        $this->drv->savepointUndo();
-        $this->assertSame(0, $this->ch->exec("CREATE TABLE test(id integer primary key)"));
     }
 }

tests/lib/AbstractTest.php

@@ -43,11 +43,12 @@ abstract class AbstractTest extends \PHPUnit\Framework\TestCase {
     public function setConf(array $conf = []) {
         $defaults = [
             'dbSQLite3File' => ":memory:",
+            'dbSQLite3Timeout' => 0,
             'dbPostgreSQLUser' => "arsse_test",
             'dbPostgreSQLPass' => "arsse_test",
             'dbPostgreSQLDb' => "arsse_test",
         ];
-        Arsse::$conf = (new Conf)->import($defaults)->import($conf);
+        Arsse::$conf = Arsse::$conf ?? (new Conf)->import($defaults)->import($conf);
     }
 
     public function assertException(string $msg = "", string $prefix = "", string $type = "Exception") {
@@ -126,6 +127,33 @@ abstract class AbstractTest extends \PHPUnit\Framework\TestCase {
         return $value;
     }
 
+    public function provideDbDrivers(array $conf = []): array {
+        $this->setConf($conf);
+        return [
+            'SQLite 3' => (function() {
+                try {
+                    return new \JKingWeb\Arsse\Db\SQLite3\Driver;
+                } catch (\Exception $e) {
+                    return;
+                }
+            })(),
+            'PDO SQLite 3' => (function() {
+                try {
+                    return new \JKingWeb\Arsse\Db\SQLite3\PDODriver;
+                } catch (\Exception $e) {
+                    return;
+                }
+            })(),
+            'PDO PostgreSQL' => (function() {
+                try {
+                    return new \JKingWeb\Arsse\Db\PostgreSQL\PDODriver;
+                } catch (\Exception $e) {
+                    return;
+                }
+            })(),
+        ];
+    }
+
     public function provideDbInterfaces(array $conf = []): array {
         $this->setConf($conf);
         return [
@@ -180,4 +208,83 @@ abstract class AbstractTest extends \PHPUnit\Framework\TestCase {
             ],
         ];
     }
+
+    public function getDbDriver(string $name, array $conf = []) {
+        $this->setConf($conf);
+        switch ($name) {
+            case 'SQLite 3':
+                return (function() {
+                    try {
+                        return new \JKingWeb\Arsse\Db\SQLite3\Driver;
+                    } catch (\Exception $e) {
+                        return;
+                    }
+                })();
+            case 'PDO SQLite 3':
+                return (function() {
+                    try {
+                        return new \JKingWeb\Arsse\Db\SQLite3\PDODriver;
+                    } catch (\Exception $e) {
+                        return;
+                    }
+                })();
+            case 'PDO PostgreSQL':
+                return (function() {
+                    try {
+                        return new \JKingWeb\Arsse\Db\PostgreSQL\PDODriver;
+                    } catch (\Exception $e) {
+                        return;
+                    }
+                })();
+            default:
+                throw new \Exception("Invalid database driver name");
+        }
+    }
+
+    public function getDbInterface(string $name, array $conf = []) {
+        $this->setConf($conf);
+        switch ($name) {
+            case 'SQLite 3':
+                return (function() {
+                    if (\JKingWeb\Arsse\Db\SQLite3\Driver::requirementsMet()) {
+                        try {
+                            $d = new \SQLite3(Arsse::$conf->dbSQLite3File);
+                        } catch (\Exception $e) {
+                            return;
+                        }
+                        $d->enableExceptions(true);
+                        return $d;
+                    }
+                })();
+            case 'PDO SQLite 3':
+                return (function() {
+                    if (\JKingWeb\Arsse\Db\SQLite3\PDODriver::requirementsMet()) {
+                        try {
+                            $d = new \PDO("sqlite:".Arsse::$conf->dbSQLite3File, "", "", [\PDO::ATTR_ERRMODE => \PDO::ERRMODE_EXCEPTION]);
+                            $d->exec("PRAGMA busy_timeout=0");
+                            return $d;
+                        } catch (\PDOException $e) {
+                            return;
+                        }
+                    }
+                })();
+            case 'PDO PostgreSQL':
+                return (function() {
+                    if (\JKingWeb\Arsse\Db\PostgreSQL\PDODriver::requirementsMet()) {
+                        $connString = \JKingWeb\Arsse\Db\PostgreSQL\Driver::makeConnectionString(true, Arsse::$conf->dbPostgreSQLUser, Arsse::$conf->dbPostgreSQLPass, Arsse::$conf->dbPostgreSQLDb, Arsse::$conf->dbPostgreSQLHost, Arsse::$conf->dbPostgreSQLPort, "");
+                        try {
+                            $c = new \PDO("pgsql:".$connString, Arsse::$conf->dbPostgreSQLUser, Arsse::$conf->dbPostgreSQLPass, [\PDO::ATTR_ERRMODE => \PDO::ERRMODE_EXCEPTION]);
+                        } catch (\PDOException $e) {
+                            return;
+                        }
+                        foreach (\JKingWeb\Arsse\Db\PostgreSQL\PDODriver::makeSetupQueries(Arsse::$conf->dbPostgreSQLSchema) as $q) {
+                            $c->exec($q);
+                        }
+                        return $c;
+                    }
+                })();
+            default:
+                throw new \Exception("Invalid database driver name");
+        }
+    }
 }

tests/phpunit.xml

@@ -57,6 +57,7 @@
         <file>cases/Db/SQLite3PDO/TestUpdate.php</file>
 
         <file>cases/Db/PostgreSQL/TestCreation.php</file>
+        <file>cases/Db/PostgreSQL/TestDriver.php</file>
     </testsuite>
     <testsuite name="Database functions">
         <file>cases/Db/SQLite3/Database/TestMiscellany.php</file>