# `Nous.Eval.Result`
[🔗](https://github.com/nyo16/nous/blob/v0.17.1/lib/nous/eval/result.ex#L1)

Result of a single test case evaluation.

Contains the actual output, evaluation score, metrics, and any errors.

## Fields

  * `:test_case_id` - ID of the test case
  * `:test_case_name` - Display name of the test case
  * `:passed` - Whether the test passed
  * `:score` - Numeric score (0.0 to 1.0)
  * `:actual_output` - The output from the agent
  * `:expected_output` - The expected output
  * `:evaluation_details` - Details from the evaluator
  * `:metrics` - Collected metrics (tokens, latency, etc.)
  * `:error` - Error if the test failed to run
  * `:duration_ms` - Total test duration in milliseconds
  * `:run_at` - When the test was run

# `t`

```elixir
@type t() :: %Nous.Eval.Result{
  actual_output: term(),
  agent_result: map() | nil,
  duration_ms: non_neg_integer(),
  error: term() | nil,
  evaluation_details: map(),
  expected_output: term(),
  metrics: Nous.Eval.Metrics.t() | nil,
  passed: boolean(),
  run_at: DateTime.t(),
  score: float(),
  test_case_id: String.t(),
  test_case_name: String.t()
}
```

# `error`

```elixir
@spec error(keyword()) :: t()
```

Create an error result (test failed to run).

# `failure`

```elixir
@spec failure(keyword()) :: t()
```

Create a failed result.

# `has_error?`

```elixir
@spec has_error?(t()) :: boolean()
```

Check if the result has an error (test didn't complete).

# `success`

```elixir
@spec success(keyword()) :: t()
```

Create a successful result.

---

*Consult [api-reference.md](api-reference.md) for complete listing*