test same types in variant

alib2std/test-src/extensions/VariantTest.cpp

@@ -144,3 +144,17 @@ void VariantTest::testVariantDefault() {
 	CPPUNIT_ASSERT ( v3.get<int> ( ) == 0 );
 }
+
+void VariantTest::testVariantSameTypes() {
+	std::variant < int, int, char > v1 ( 1 );
+
+	CPPUNIT_ASSERT ( v1.get < int > ( ) == 1 );
+
+	v1.set < char > ( 'a' );
+
+	CPPUNIT_ASSERT ( v1.get < char > ( ) == 'a' );
+
+	v1.set < int > ( 'a' );
+
+	CPPUNIT_ASSERT ( v1.is < int > ( ) );
+}

alib2std/test-src/extensions/VariantTest.h

@@ -12,6 +12,7 @@ class VariantTest : public CppUnit::TestFixture
   CPPUNIT_TEST( testVariantSet2 );
   CPPUNIT_TEST( testVariantVoid );
   CPPUNIT_TEST( testVariantDefault );
+  CPPUNIT_TEST( testVariantSameTypes );
   CPPUNIT_TEST_SUITE_END();
 public:
@@ -72,6 +73,7 @@ public:
   void testVariantSet2();
   void testVariantVoid();
   void testVariantDefault();
+  void testVariantSameTypes();
 };
 namespace std {