Added vector resize test

projects/SelfTest/MiscTests.cpp

@@ -292,3 +292,43 @@ TEST_CASE( "second tag", "[tag2]" )
 //    while ( fgets(line, 199, output) )
 //        std::cout << line;
 //}
+
+TEST_CASE( "vectors can be sized and resized", "[vector]" ) {
+
+    std::vector<int> v( 5 );
+    
+    REQUIRE( v.size() == 5 );
+    REQUIRE( v.capacity() >= 5 );
+    
+    SECTION( "resizing bigger changes size and capacity", "" ) {
+        v.resize( 10 );
+        
+        REQUIRE( v.size() == 10 );
+        REQUIRE( v.capacity() >= 10 );
+    }
+    SECTION( "resizing smaller changes size but not capacity", "" ) {
+        v.resize( 0 );
+        
+        REQUIRE( v.size() == 0 );
+        REQUIRE( v.capacity() >= 5 );
+        
+        SECTION( "We can use the 'swap trick' to reset the capacity", "" ) {
+            std::vector<int> empty;
+            empty.swap( v );
+            
+            REQUIRE( v.capacity() == 0 );
+        }
+    }
+    SECTION( "reserving bigger changes capacity but not size", "" ) {
+        v.reserve( 10 );
+        
+        REQUIRE( v.size() == 5 );
+        REQUIRE( v.capacity() >= 10 );
+    }
+    SECTION( "reserving smaller does not change size or capacity", "" ) {
+        v.reserve( 0 );
+        
+        REQUIRE( v.size() == 5 );
+        REQUIRE( v.capacity() >= 5 );
+    }
+}