added new tests

tests/dibi/DibiConnection.transactions.phpt

@@ -0,0 +1,48 @@
+<?php
+
+/**
+ * @dataProvider ../databases.ini
+ */
+
+use Tester\Assert;
+
+require __DIR__ . '/bootstrap.php';
+
+
+$conn = new DibiConnection($config);
+$conn->loadFile(__DIR__ . "/data/$config[system].sql");
+
+
+/*Assert::exception(function() use ($conn) {
+	$conn->rollback();
+}, 'DibiException');
+
+Assert::exception(function() use ($conn) {
+	$conn->commit();
+}, 'DibiException');
+
+$conn->begin();
+Assert::exception(function() use ($conn) {
+	$conn->begin();
+}, 'DibiException');
+*/
+
+
+$conn->begin();
+Assert::same(3, (int) $conn->query('SELECT COUNT(*) FROM [products]')->fetchSingle());
+$conn->query('INSERT INTO [products]', array(
+	'title' => 'Test product',
+));
+Assert::same(4, (int) $conn->query('SELECT COUNT(*) FROM [products]')->fetchSingle());
+$conn->rollback();
+Assert::same(3, (int) $conn->query('SELECT COUNT(*) FROM [products]')->fetchSingle());
+
+
+
+
+$conn->begin();
+$conn->query('INSERT INTO [products]', array(
+	'title' => 'Test product',
+));
+$conn->commit();
+Assert::same(4, (int) $conn->query('SELECT COUNT(*) FROM [products]')->fetchSingle());