plan

type FormatTimingMetadata struct {
	// MedianDuration is the median of historical timings used to backfill
	// cases without history. Nil when no history existed at all.
	MedianDuration *float64 `json:"median_duration"`
	// DefaultDuration is the assumed duration when no history exists at all.
	DefaultDuration float64 `json:"default_duration"`
}

type Task struct {
	NodeNumber int `json:"node_number"`
	// When splitting by file, this tests array is essentially an array of test files.
	// When splitting by example, this array is an array of proper test cases.
	// See comment above, we plan to split TestCase into two types or clarify its usage.
	Tests []TestCase `json:"tests"`
}

type TestCase struct {
	EstimatedDuration int            `json:"estimated_duration,omitempty"`
	Format            TestCaseFormat `json:"format,omitempty"`
	Identifier        string         `json:"identifier,omitempty"`
	Name              string         `json:"name,omitempty"`
	// Path is the path of the individual test or test file that the test runner can interpret.
	// For example:
	// In RSpec, the path can be a test file like `user_spec.rb` or an individual test id like `user_spec.rb[1,2]`.
	// In Jest, the path is a test file like `src/components/Button.spec.tsx`.
	// In pytest, the path can be a test file like `test_hello.py` or a node id like `test_hello.py::TestHello::test_greet`
	// In go test, the path can only be package name like "example.com/foo/bar".
	Path  string `json:"path"`
	Scope string `json:"scope,omitempty"`
	// Value is the runnable selector for selector-based plans, for example a Go package import path.
	Value string `json:"value,omitempty"`
	// TimingSampleSize is the number of historical executions/runs behind this
	// case's EstimatedDuration. For file-scoped cases this is distinct runs,
	// for example-scoped cases this is raw executions. Defaults to 0 when no
	// history is available or the field is missing on older/cached plans.
	TimingSampleSize int `json:"timing_sample_size,omitempty"`
}

type TestCaseFormat string

type TestPlan struct {
	Identifier   string           `json:"identifier"`
	Parallelism  int              `json:"parallelism"`
	Experiment   string           `json:"experiment"`
	Tasks        map[string]*Task `json:"tasks"`
	Fallback     bool
	MutedTests   []TestCase `json:"muted_tests,omitempty"`
	SkippedTests []TestCase `json:"skipped_tests,omitempty"`
	// TimingMetadata describes the historical timing data the server used to
	// build this plan. Nil when missing (e.g. error plans, plans cached before
	// the server began emitting it).
	TimingMetadata *TimingMetadata `json:"timing_metadata,omitempty"`
	// KnownTimingsRatio is the fraction (0.0–1.0) of cases that had historical
	// timing data when the plan was built. The server only emits it at
	// parallelism > 1, where the split summary instead uses per-format
	// TimingMetadata. Currently unread; retained for wire compatibility.
	KnownTimingsRatio *float64 `json:"known_timings_ratio,omitempty"`
}

type TimingMetadata struct {
	File     *FormatTimingMetadata `json:"file,omitempty"`
	Example  *FormatTimingMetadata `json:"example,omitempty"`
	Selector *FormatTimingMetadata `json:"selector,omitempty"`
}