var tests = []struct { name string expected string given string }{ {"", "", "",}, } for _, tt := range tests { tt := tt t.Run(tt.name, func(t *testing.T){ actual := {{++}}(tt.given) if actual != tt.expected { t.Errorf("{{+~\~1+}}(%s): expected %s, actual %s", tt.given, tt.expected, actual) } }) }