Add API tests

tests/bootstrap.php

@@ -0,0 +1,22 @@
+<?php
+/**
+ * This file is loaded by PHPUnit before any test.
+ */
+
+use PHPUnit\DbUnit\DataSet\YamlDataSet;
+use PHPUnit\DbUnit\TestCaseTrait;
+use PHPUnit\Framework\TestCase;
+
+require_once __DIR__.'/../boot.php';
+require_once __DIR__.'/../include/api.php';
+
+// Backward compatibility
+if (!class_exists(TestCase::class)) {
+	class_alias(PHPUnit_Framework_TestCase::class, TestCase::class);
+}
+if (!trait_exists(TestCaseTrait::class)) {
+	class_alias(PHPUnit_Extensions_Database_TestCase_Trait::class, TestCaseTrait::class);
+}
+if (!class_exists(YamlDataSet::class)) {
+	class_alias(PHPUnit_Extensions_Database_DataSet_YamlDataSet::class, YamlDataSet::class);
+}