tests/specs/task/input_cache/__test__.jsonc - main - githubmirror/deno

tests/specs/task/input_cache/__test__.jsonc
178 строк5 KB
Bartek Iwańczuk
feat(task): input-based caching with files/output/env (#34509)
24 июн 2026, 09:33
24 июн 2026, 09:3372497f3
{
  "tempDir": true,
  "tests": {
    // Changing the contents of an input file invalidates the cache; an
    // unchanged re-run hits.
    "content_change": {
      "steps": [
        {
          "args": "task build",
          "output": "first.out"
        },
        {
          "args": "task build",
          "output": "cached.out"
        },
        {
          "args": [
            "eval",
            "Deno.writeTextFileSync('src/in.ts', 'console.log(2)')"
          ],
          "output": ""
        },
        {
          "args": "task build",
          "output": "changed.out"
        },
        {
          "args": "task build",
          "output": "cached.out"
        }
      ]
    },
    // Arguments appended on the CLI are part of the fingerprint: re-running
    // with the same args hits, but different args miss and run again.
    "args_are_fingerprinted": {
      "steps": [
        {
          "args": "task build foo",
          "output": "Task build deno run src/in.ts 'foo'\n1\n"
        },
        {
          "args": "task build foo",
          "output": "Task build deno run src/in.ts 'foo' (cached, inputs unchanged)\n"
        },
        {
          "args": "task build bar",
          "output": "Task build deno run src/in.ts 'bar'\n1\n"
        },
        {
          "args": "task build bar",
          "output": "Task build deno run src/in.ts 'bar' (cached, inputs unchanged)\n"
        }
      ]
    },
    // A listed env var's value is part of the fingerprint: same value hits,
    // a changed value misses.
    "env_is_fingerprinted": {
      "steps": [
        {
          "args": "task with_env",
          "envs": { "MY_VAR": "a" },
          "output": "Task with_env deno run src/in.ts\n1\n"
        },
        {
          "args": "task with_env",
          "envs": { "MY_VAR": "a" },
          "output": "Task with_env deno run src/in.ts (cached, inputs unchanged)\n"
        },
        {
          "args": "task with_env",
          "envs": { "MY_VAR": "b" },
          "output": "Task with_env deno run src/in.ts\n1\n"
        }
      ]
    },
    // Changing the command itself invalidates the cache even when inputs are
    // untouched.
    "command_change_invalidates": {
      "steps": [
        {
          "args": "task build",
          "output": "first.out"
        },
        {
          "args": [
            "eval",
            "Deno.writeTextFileSync('deno.json', JSON.stringify({tasks:{build:{command:'deno run -q src/in.ts',files:['src/**/*.ts']}}}))"
          ],
          "output": ""
        },
        {
          "args": "task build",
          "output": "Task build deno run -q src/in.ts\n1\n"
        }
      ]
    },
    // An input glob that matches nothing is treated as non-cacheable, so the
    // task runs on every invocation instead of always hitting.
    "glob_matching_nothing_never_caches": {
      "steps": [
        {
          "args": "task no_inputs",
          "output": "Task no_inputs deno run src/in.ts\n1\n"
        },
        {
          "args": "task no_inputs",
          "output": "Task no_inputs deno run src/in.ts\n1\n"
        }
      ]
    },
    // Declared outputs are captured on a successful run and restored on a hit,
    // so deleting them and re-running regenerates them from the cache instead
    // of leaving them missing.
    "output_restored_on_hit": {
      "steps": [
        {
          "args": "task build_out",
          "output": "Task build_out deno run -A src/gen.ts\ngenerated\n"
        },
        {
          "args": [
            "eval",
            "console.log(Deno.readTextFileSync('dist/out.txt'))"
          ],
          "output": "artifact\n"
        },
        {
          "args": ["eval", "Deno.removeSync('dist', { recursive: true })"],
          "output": ""
        },
        {
          "args": "task build_out",
          "output": "Task build_out deno run -A src/gen.ts (cached, inputs unchanged)\n"
        },
        // The deleted output is back, restored from the cache.
        {
          "args": [
            "eval",
            "console.log(Deno.readTextFileSync('dist/out.txt'))"
          ],
          "output": "artifact\n"
        }
      ]
    },
    // A task that depends on another invalidates when the upstream task
    // re-runs, even if its own inputs are unchanged (dependency cascade).
    "dependency_cascade_invalidates": {
      "steps": [
        {
          "args": "task downstream",
          "output": "Task dep deno run src/dep_in.ts\ndep\nTask downstream deno run src/down_in.ts\ndown\n"
        },
        {
          "args": "task downstream",
          "output": "Task dep deno run src/dep_in.ts (cached, inputs unchanged)\nTask downstream deno run src/down_in.ts (cached, inputs unchanged)\n"
        },
        {
          "args": [
            "eval",
            "Deno.writeTextFileSync('src/dep_in.ts', 'console.log(\"dep2\")')"
          ],
          "output": ""
        },
        // `dep` re-runs because its input changed; `downstream` re-runs too,
        // even though `src/down_in.ts` is untouched, because `dep`'s
        // fingerprint is part of `downstream`'s cache key.
        {
          "args": "task downstream",
          "output": "Task dep deno run src/dep_in.ts\ndep2\nTask downstream deno run src/down_in.ts\ndown\n"
        },
        {
          "args": "task downstream",
          "output": "Task dep deno run src/dep_in.ts (cached, inputs unchanged)\nTask downstream deno run src/down_in.ts (cached, inputs unchanged)\n"
        }
      ]
    }
  }
}