Add classes and tests from common project

tests/unit/Query/DefinitionTest.php

@@ -0,0 +1,38 @@
+<?php declare(strict_types=1);
+
+namespace Test\Unit\Query;
+
+use BitBadger\PDODocument\Query\Definition;
+use PHPUnit\Framework\TestCase;
+
+/**
+ * Unit tests for the Definition class
+ */
+class DefinitionTest extends TestCase
+{
+    public function testEnsureTableForSucceeds(): void
+    {
+        $this->assertEquals('CREATE TABLE IF NOT EXISTS documents (data JSON NOT NULL)',
+            Definition::ensureTableFor('documents', 'JSON'), 'CREATE TABLE statement not generated correctly');
+    }
+
+    public function testEnsureIndexOnSucceedsWithoutSchemaSingleAscendingField(): void
+    {
+        $this->assertEquals("CREATE INDEX IF NOT EXISTS idx_test_fields ON test ((data->>'details'))",
+            Definition::ensureIndexOn('test', 'fields', ['details']), 'CREATE INDEX statement not generated correctly');
+    }
+
+    public function testEnsureIndexOnSucceedsWithSchemaMultipleFields(): void
+    {
+        $this->assertEquals(
+            "CREATE INDEX IF NOT EXISTS idx_testing_json ON sch.testing ((data->>'group'), (data->>'sub_group') DESC)",
+            Definition::ensureIndexOn('sch.testing', 'json', ['group', 'sub_group DESC']),
+            'CREATE INDEX statement not generated correctly');
+    }
+
+    public function testEnsureKey(): void
+    {
+        $this->assertEquals("CREATE UNIQUE INDEX IF NOT EXISTS idx_tbl_key ON tbl ((data->>'id'))",
+            Definition::ensureKey('tbl'), 'CREATE INDEX statement for document key not generated correctly');
+    }
+}