Update InflectorTest.php

Added test cases for changes to inflector which affected words ending -aves. Author acknowledges the homonym conflict with 'leaves' and 'leaves', but preferences the word whose singular avoids an exception to the inflection rule.

lib/Cake/Test/Case/Utility/InflectorTest.php

@@ -92,6 +92,8 @@ public function testInflectingSingulars() {
 		$this->assertEquals(Inflector::singularize('faxes'), 'fax');
 		$this->assertEquals(Inflector::singularize('waxes'), 'wax');
 		$this->assertEquals(Inflector::singularize('niches'), 'niche');
+		$this->assertEquals(Inflector::singularize('caves'), 'cave');
+		$this->assertEquals(Inflector::singularize('graves'), 'grave');
 		$this->assertEquals(Inflector::singularize('waves'), 'wave');
 		$this->assertEquals(Inflector::singularize('bureaus'), 'bureau');
 		$this->assertEquals(Inflector::singularize('genetic_analyses'), 'genetic_analysis');