denoland-deno/tests/specs/add/only_unstable_versions/__test__.jsonc

{
  "tempDir": true,
  "tests": {
    "npm_package": {
      "steps": [
        {
          "args": "add npm:@denotest/unstable",
          "output": "add.out"
        }
      ]
    },
    "jsr_package": {
      "steps": [
        {
          "args": "add jsr:@denotest/unstable",
          "output": "add_jsr.out",
          "exitCode": 1
        }
      ]
    }
  }
}