test algorithm unregister

alib2cli/test-src/cli/CliTest.cpp

@@ -101,6 +101,13 @@ void CliTest::testCreateUnique ( ) {
 	parser = cli::Parser ( cli::Lexer ( "execute $res" ) );
 	parser.parse ( )->run ( environment );
+	parser = cli::Parser ( cli::Lexer ( "execute Divide <(One) <(One)" ) );
+	CPPUNIT_ASSERT_NO_THROW ( parser.parse ( )->run ( environment ) );
+
+	abstraction::AlgorithmRegistry::unregisterAlgorithm < Divide, double, double > ( abstraction::AlgorithmCategories::AlgorithmCategory::DEFAULT );
+	abstraction::AlgorithmRegistry::unregisterAlgorithm < Divide, int, int > ( abstraction::AlgorithmCategories::AlgorithmCategory::DEFAULT );
+
+	CPPUNIT_ASSERT_THROW ( parser.parse ( )->run ( environment ), exception::CommonException );
 }
 class Source {