tests: Added for bug 170 (#232)

Author: EdaCZ

tests/Database/Table/bugs/bug170.phpt

@@ -0,0 +1,20 @@
+<?php
+
+/**
+ * Test: bug 170
+ * @dataProvider? ../../databases.ini mysql
+ */
+
+declare(strict_types=1);
+
+use Tester\Assert;
+
+require __DIR__ . '/../../connect.inc.php';
+
+Nette\Database\Helpers::loadFromFile($connection, __DIR__ . "/../../files/{$driverName}-bug170.sql");
+
+Assert::noError(function () use ($context) {
+	// this bug is about picking the right foreign key to specified table regardless FKs definition order
+	$context->table('Operator1')->where('country.id')->count();
+	$context->table('Operator2')->where('country.id')->count();
+});

tests/Database/files/mysql-bug170.sql

@@ -0,0 +1,35 @@
+DROP DATABASE IF EXISTS nette_test;
+CREATE DATABASE nette_test;
+USE nette_test;
+
+CREATE TABLE `Country` (
+    `id` int(4) unsigned NOT NULL AUTO_INCREMENT,
+    PRIMARY KEY (`id`)
+) ENGINE=InnoDB DEFAULT CHARSET=utf8 COLLATE=utf8_czech_ci;
+
+CREATE TABLE `Region` (
+    `order` int(1) unsigned NOT NULL,
+    `countryId` int(4) unsigned NOT NULL,
+    PRIMARY KEY (`countryId`, `order`),
+    CONSTRAINT `Region_ibfk_2` FOREIGN KEY (`countryId`) REFERENCES `Country` (`id`)
+) ENGINE=InnoDB DEFAULT CHARSET=utf8 COLLATE=utf8_czech_ci;
+
+CREATE TABLE `Operator1` (
+    `id` int(4) unsigned NOT NULL AUTO_INCREMENT,
+    `countryId` int(4) unsigned NOT NULL,
+    `regionOrder` int(1) unsigned NOT NULL,
+    PRIMARY KEY (`id`),
+    CONSTRAINT `Operator_ibfk_1` FOREIGN KEY (`countryId`, `regionOrder`) REFERENCES `Region` (`countryId`, `order`),
+    CONSTRAINT `Operator_ibfk_2` FOREIGN KEY (`countryId`) REFERENCES `Country` (`id`)
+) ENGINE=InnoDB DEFAULT CHARSET=utf8 COLLATE=utf8_czech_ci;
+
+CREATE TABLE `Operator2` (
+    `id` int(4) unsigned NOT NULL AUTO_INCREMENT,
+    `countryId` int(4) unsigned NOT NULL,
+    `regionOrder` int(1) unsigned NOT NULL,
+    PRIMARY KEY (`id`),
+    CONSTRAINT `Operator2_ibfk_1` FOREIGN KEY (`countryId`) REFERENCES `Country` (`id`),
+    CONSTRAINT `Operator2_ibfk_2` FOREIGN KEY (`countryId`, `regionOrder`) REFERENCES `Region` (`countryId`, `order`)
+) ENGINE=InnoDB DEFAULT CHARSET=utf8 COLLATE=utf8_czech_ci;
+
+-- NOTE: Order of foreign keys to tables Region and Country is reversed in Operator2 table compared to Operator1 table