tasks.json

 1[
 2  {
 3    "label": "gleam test",
 4    "command": "gleam",
 5    "args": ["test"]
 6  },
 7  {
 8    "label": "gleam test $ZED_SYMBOL",
 9    "command": "gleam",
10    "args": ["test", "--", "--test-name-filter=$ZED_SYMBOL"],
11    "tags": ["gleam-test"]
12  }
13]