! Added new constraints for table aliases check in config.

app/code/community/EcomDev/PHPUnit/Test/Case/Config.php

@@ -82,7 +82,7 @@ abstract class EcomDev_PHPUnit_Test_Case_Config extends EcomDev_PHPUnit_Test_Cas
     
 
     /**
-     * A new constraint for checking module node
+     * A new constraint for checking class alias nodes
      *
      * @param string $group
      * @param string $classAlias
@@ -98,6 +98,22 @@ abstract class EcomDev_PHPUnit_Test_Case_Config extends EcomDev_PHPUnit_Test_Cas
         );
     }
     
+    /**
+     * A new constraint for checking table alias nodes
+     *
+     * @param string $tableAlias
+     * @param string $expectedTableName
+     * @param string $type
+     * @return EcomDev_PHPUnit_Constraint_Config
+     */
+    public static function configTableAlias($tableAlias, $expectedTableName,
+        $type = EcomDev_PHPUnit_Constraint_Config_TableAlias::TYPE_TABLE_ALIAS)
+    {
+        return self::config(
+            new EcomDev_PHPUnit_Constraint_Config_TableAlias($tableAlias, $expectedTableName, $type)
+        );
+    }
+
     /**
      * Creates layout constraint
      *
@@ -888,6 +904,38 @@ abstract class EcomDev_PHPUnit_Test_Case_Config extends EcomDev_PHPUnit_Test_Cas
         );
     }
     
+    /**
+     * Assert that table alias is mapped to expected table name
+     *
+     * @param string $tableAlias
+     * @param string $expectedTableName
+     * @param string $message
+     */
+    public static function assertTableAlias($tableAlias, $expectedTableName, $message = '')
+    {
+        self::assertThatConfig(
+            self::configTableAlias($tableAlias, $expectedTableName),
+            $message
+        );
+    }
+
+    /**
+     * Assert that table alias is NOT mapped to expected table name
+     *
+     * @param string $tableAlias
+     * @param string $expectedTableName
+     * @param string $message
+     */
+    public static function assertTableAliasNot($tableAlias, $expectedTableName, $message = '')
+    {
+        self::assertThatConfig(
+            self::logicalNot(
+                self::configTableAlias($tableAlias, $expectedTableName)
+            ),
+            $message
+        );
+    }
+
     /**
      * Assert that helper alias is mapped to expected class name
      *

lib/EcomDev/PHPUnit/Constraint/Config/TableAlias.php

+<?php
+
+/**
+ * Table alias constraint
+ *
+ */
+class EcomDev_PHPUnit_Constraint_Config_TableAlias
+    extends EcomDev_PHPUnit_Constraint_Config_Abstract
+{
+    const XML_PATH_MODELS = 'global/models';
+
+    const TYPE_TABLE_ALIAS = 'table_alias';
+
+    /**
+     * Table alias name, e.g. the name of the table within resource
+     *
+     * @var string
+     */
+    protected $_tableAliasName = null;
+
+    /**
+     * Table alias prefix,
+     * e.g. the prefix for tables of a particular resource model
+     *
+     * @var string
+     */
+    protected $_tableAliasPrefix = null;
+
+    /**
+     * Constraint for evaluation of table alias
+     *
+     * @param string $tableAlias
+     * @param string $expectedTableName
+     * @param string $type
+     */
+    public function __construct($tableAlias, $expectedTableName, $type = self::TYPE_TABLE_ALIAS)
+    {
+        if (!strpos($tableAlias, '/')) {
+            throw PHPUnit_Util_InvalidArgumentHelper::factory(2, 'table alias', $tableAlias);
+        }
+
+        list($this->_tableAliasPrefix, $this->_tableAliasName) = explode('/', $tableAlias, 2);
+
+        $this->_expectedValueValidation += array(
+            self::TYPE_TABLE_ALIAS => array(true, 'is_string', 'string')
+        );
+
+        $this->_typesWithDiff[] = self::TYPE_TABLE_ALIAS;
+
+        parent::__construct(self::XML_PATH_MODELS, $type, $expectedTableName);
+    }
+
+    /**
+     * Evaluates table alias is mapped to expected table name
+     *
+     * @param Varien_Simplexml_Element $other
+     * @return boolean
+     */
+    protected function evaluateTableAlias($other)
+    {
+        if (!isset($other->{$this->_tableAliasPrefix})) {
+            $this->setActualValue(false);
+            return false;
+        }
+        
+        $modelNode = $other->{$this->_tableAliasPrefix};
+        
+        if (!isset($modelNode->entities) && isset($other->{(string)$modelNode->resourceModel})) {
+            $modelNode = $other->{(string)$modelNode->resourceModel};
+        }
+
+        if (isset($modelNode->entities->{$this->_tableAliasName}->table)) {
+            $tableName = (string)$modelNode->entities->{$this->_tableAliasName}->table;
+        } else {
+            $tableName = false;
+        }
+
+        $this->setActualValue($tableName);
+        return $this->_actualValue === $this->_expectedValue;
+    }
+
+    /**
+     * Text representation of table alias constaint
+     *
+     * @return string
+     */
+    protected function textTableAlias()
+    {
+        return 'is mapped to table name';
+    }
+
+    /**
+     * Custom failure description for showing config related errors
+     * (non-PHPdoc)
+     * @see PHPUnit_Framework_Constraint::customFailureDescription()
+     */
+    protected function customFailureDescription($other, $description, $not)
+    {
+        return sprintf(
+            'Failed asserting that table alias "%s/%s" %s.',
+            $this->_tableAliasPrefix, $this->_tableAliasName,
+            $this->toString()
+        );
+    }
+}