[
{
"name": "empty group header",
"first": true,
"frame": "{\"offset\":0,\"records\":[]}"
},
{
"name": "group header from zero",
"first": true,
"frame": "{\"offset\":0,\"records\":[{\"n\":0},{\"n\":1}]}"
},
{
"name": "group header with a non-zero offset",
"first": true,
"frame": "{\"offset\":7,\"records\":[{\"n\":7}]}"
},
{
"name": "push",
"first": false,
"frame": "{\"push\":{\"n\":2}}"
},
{
"name": "pop one",
"first": false,
"frame": "{\"pop\":1}"
},
{
"name": "pop several",
"first": false,
"frame": "{\"pop\":3}"
}
]