#14 - Test InExpression (with TestHelper)

Author: technicalguru

composer.json

@@ -23,6 +23,11 @@
 			"TgDatabase\\" : "src/TgDatabase/"
 		}
 	},
+	"autoload-dev" : {
+		"psr-4" : {
+			"TgDatabase\\" : "tests/TgDatabase/"
+		}
+	},
 	"extra": {
 		"branch-alias": {
 			"dev-master": "1.0-dev"

tests/TgDatabase/Criterion/InExpressionTest.php

@@ -0,0 +1,36 @@
+<?php declare(strict_types=1);
+
+namespace TgDatabase\Criterion;
+
+use PHPUnit\Framework\TestCase;
+use TgDatabase\Restrictions;
+use TgDatabase\Criterion;
+use TgDatabase\Criteria;
+use TgDatabase\TestHelper;
+
+/**
+ * Tests the InExpression.
+ * @author ralph
+ *
+ */
+final class InExpressionTest extends TestCase {
+    
+    protected ?Criteria $criteria = NULL;
+    
+    public function testSimple(): void {
+        $expr = Restrictions::in('aName', array('aValue1', 'aValue2'));
+        $this->testSqlString('`aName` IN (\'aValue1\',\'aValue2\')', $expr);
+    }
+        
+    public function testWithIgnoreCase(): void {
+        $expr = Restrictions::in('aName', array('aValue1', 'aValue2'))->ignoreCase();
+        $this->testSqlString('LOWER(`aName`) IN (\'avalue1\',\'avalue2\')', $expr);
+    }
+        
+    protected function testSqlString(string $expected, Criterion $expr, $alias = NULL): void {
+        $criteria = TestHelper::createCriteria(NULL, NULL, $alias);
+        if ($criteria != NULL) {
+            $this->assertEquals($expected, $expr->toSqlString($criteria,$criteria));
+        }
+    }
+}

tests/TgDatabase/Criterion/SimpleExpressionTest.php

@@ -6,8 +6,7 @@
 use TgDatabase\Restrictions;
 use TgDatabase\Criterion;
 use TgDatabase\Criteria;
-use TgDatabase\Impl\CriteriaImpl;
-use TgDatabase\Database;
+use TgDatabase\TestHelper;
 
 /**
  * Tests the SimpleExpression.
@@ -16,8 +15,6 @@
  */
 final class SimpleExpressionTest extends TestCase {
 
-    protected ?Criteria $criteria = NULL;
-    
     public function testSimple(): void {
         $expr = Restrictions::eq('aName', 'aValue');
         $this->testSqlString('`aName` = \'aValue\'', $expr);
@@ -39,27 +36,10 @@ public function testIgnoreCase(): void {
     }
 
     protected function testSqlString(string $expected, Criterion $expr, $alias = NULL): void {
-        $criteria = $this->getCriteria($alias);
+        $criteria = TestHelper::createCriteria(NULL, NULL, $alias);
         if ($criteria != NULL) {
             $this->assertEquals($expected, $expr->toSqlString($criteria,$criteria));
         }
     }
 
-    protected function getCriteria($alias): ?Criteria {
-        if (getenv('DB_TEST_HOST') != NULL) {
-            if ($this->criteria == NULL) {
-                $config = array(
-                    'host'        => getenv('DB_TEST_HOST'),
-                    'port'        => intval(getenv('DB_TEST_PORT')),
-                    'dbname'      => getenv('DB_TEST_NAME'),
-                    'tablePrefix' => getenv('DB_TEST_PREFIX'),
-                    'user'        => getenv('DB_TEST_USER'),
-                    'pass'        => getenv('DB_TEST_PASS'),
-                );
-                $this->database = new Database($config);
-                $this->criteria = new CriteriaImpl($this->database, 'dual', NULL, $alias);
-            }
-        }
-        return $this->criteria;
-    }
 }

tests/TgDatabase/TestHelper.php

@@ -0,0 +1,46 @@
+<?php declare(strict_types=1);
+
+namespace TgDatabase;
+
+use TgDatabase\Criteria;
+use TgDatabase\Impl\CriteriaImpl;
+use TgDatabase\Database;
+
+/**
+ * Abstract test to ease database, DAO and Criteria creation.
+ * @author ralph
+ *        
+ */
+class TestHelper {
+
+    protected static ?Database $database = NULL;
+    
+    public static function getDatabase(): ?Database {
+        if (self::hasTestDatabase()) {
+            if (self::$database == NULL) {
+                $config = array(
+                    'host'        => getenv('DB_TEST_HOST'),
+                    'port'        => intval(getenv('DB_TEST_PORT')),
+                    'dbname'      => getenv('DB_TEST_NAME'),
+                    'tablePrefix' => getenv('DB_TEST_PREFIX'),
+                    'user'        => getenv('DB_TEST_USER'),
+                    'pass'        => getenv('DB_TEST_PASS'),
+                );
+                self::$database = new Database($config);
+            }
+        }
+        return self::$database;
+    }
+
+    public static function createCriteria($tableName = 'dual', $modelClass = NULL, $alias = NULL): ?Criteria {
+        if (self::hasTestDatabase()) {
+            return new CriteriaImpl(self::getDatabase(), $tableName, $modelClass, $alias);
+        }
+        return NULL;
+    }
+    
+    public static function hasTestDatabase(): bool {
+        return getenv('DB_TEST_HOST') != NULL;
+    }
+}
+