test(cost): ResearchReaperTest — five cases per spec

Covers the five scenarios from convo thread research-cost-reaper seq 1:

- test_reaps_orphan_with_matching_run_id_posts — meta lookup returns
  two post IDs; reaper delegates to amortize_research_costs which
  inserts two rows and deletes the orphan.
- test_skips_orphan_within_grace_period — the SELECT's
  `created_at < now - 1h` clause filters fresh orphans at the DB; the
  reaper's stats stay zero and no side effects fire.
- test_deletes_orphan_with_no_articles_after_7_days — orphan is 8 days
  old, zero siblings via meta or gen_log; reaper deletes outright.
- test_falls_back_to_gen_log_when_post_meta_missing — meta returns
  empty (legacy pre-v0.8.1 post); gen_log has two distinct post_ids;
  amortize still runs.
- test_idempotent_on_repeat_run — second pass on a cleaned state
  returns 0/0/0 with no inserts or deletes.

All DB interaction mocked via $wpdb stub — no real DB round-trips.
Fixtures are driven by property mutations in the test methods so
PHPUnit's "one stub per method" restriction on mocks doesn't bite.

Part of the v0.8.1 bundle.

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
This commit is contained in:
peptiderepo
2026-04-21 02:26:34 +07:00
parent da7634c528
commit 7dc22784cb

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<?php
/**
* Tests for PRAutoBlogger_Research_Reaper.
*
* Exercises the five scenarios spec'd in convo thread
* research-cost-reaper/01-cto-handoff.md: meta-based reap, grace-period
* skip, 7-day stale delete, gen_log fallback when meta is missing, and
* idempotency on repeat runs.
*
* All DB work is mocked via a $wpdb stub — no real database round-trips.
*
* @package PRAutoBlogger\Tests\Core
*/
namespace PRAutoBlogger\Tests\Core;
use PRAutoBlogger\Tests\BaseTestCase;
use Brain\Monkey\Functions;
class ResearchReaperTest extends BaseTestCase {
/**
* @var \PHPUnit\Framework\MockObject\MockObject Mock $wpdb.
*/
private $wpdb;
/**
* Captured INSERT rows (from amortize_research_costs delegating to $wpdb->insert).
*
* @var array<int, array<string, mixed>>
*/
private array $inserted_rows = [];
/**
* Captured DELETE calls: [$table, $where-array].
*
* @var array<int, array{0: string, 1: array<string, mixed>}>
*/
private array $deleted_rows = [];
/**
* Fixture: the rows get_results should hand back for the orphan scan.
*
* @var array<int, object>
*/
private array $orphan_fixtures = [];
/**
* Fixture: post IDs the reaper's fallback gen_log query should return.
*
* @var int[]
*/
private array $gen_log_post_ids = [];
protected function setUp(): void {
parent::setUp();
$this->inserted_rows = [];
$this->deleted_rows = [];
$this->orphan_fixtures = [];
$this->gen_log_post_ids = [];
$this->wpdb = $this->create_mock_wpdb();
$this->wpdb->insert_id = 1;
$this->wpdb->method( 'insert' )->willReturnCallback(
function ( $table, $row ) {
$this->inserted_rows[] = array_merge( [ '__table' => $table ], $row );
return 1;
}
);
$this->wpdb->method( 'delete' )->willReturnCallback(
function ( $table, $where ) {
$this->deleted_rows[] = [ (string) $table, (array) $where ];
return 1;
}
);
// prepare() returns its args joined so we can pattern-match in get_* stubs.
$this->wpdb->method( 'prepare' )->willReturnCallback(
function ( $sql, ...$args ) {
return $sql . '|' . implode( '|', array_map( 'strval', $args ) );
}
);
// get_results routes by SQL fragment between the reaper's orphan scan
// and the occasional Logger insert probes.
$this->wpdb->method( 'get_results' )->willReturnCallback(
function ( $sql ) {
if ( false !== stripos( (string) $sql, "post_id IS NULL AND created_at <" ) ) {
return $this->orphan_fixtures;
}
return [];
}
);
// get_row serves amortize_research_costs's research-row lookup.
$this->wpdb->method( 'get_row' )->willReturnCallback(
function ( $sql ) {
foreach ( $this->orphan_fixtures as $o ) {
if ( false !== stripos( (string) $sql, (string) $o->run_id ) ) {
return (object) [
'id' => $o->id,
'estimated_cost' => $o->estimated_cost ?? 0.50,
'provider' => $o->provider ?? 'openrouter',
'model' => $o->model ?? 'gemini-flash',
'prompt_tokens' => $o->prompt_tokens ?? 1000,
'completion_tokens' => $o->completion_tokens ?? 500,
];
}
}
return null;
}
);
// get_col is the reaper's fallback "posts by run_id" and amortize's
// "distinct post_ids" query — both read from the same fixture.
$this->wpdb->method( 'get_col' )->willReturnCallback(
fn() => array_map( 'strval', $this->gen_log_post_ids )
);
$GLOBALS['wpdb'] = $this->wpdb;
$this->stub_get_option( [
'prautoblogger_log_level' => 'info',
] );
// Reaper uses get_posts to look up sibling posts via post_meta.
Functions\when( 'get_posts' )->justReturn( [] );
}
protected function tearDown(): void {
unset( $GLOBALS['wpdb'] );
parent::tearDown();
}
/**
* Helper: seed the orphan list returned by the reaper's primary SELECT.
*
* @param array<int, array{id: int, run_id: string, created_at: string, estimated_cost?: float, provider?: string, model?: string, prompt_tokens?: int, completion_tokens?: int}> $orphans
*/
private function seed_orphans( array $orphans ): void {
$this->orphan_fixtures = array_map(
static fn( $r ) => (object) $r,
$orphans
);
}
/**
* Helper: set the post_ids the gen_log fallback query returns.
*
* @param int[] $post_ids
*/
private function seed_gen_log_posts_for_run( array $post_ids ): void {
$this->gen_log_post_ids = $post_ids;
}
/**
* 1. Reap succeeds via post_meta primary lookup.
*
* Orphan row is >1h old, `_prautoblogger_run_id` meta returns two
* post IDs, amortize inserts two attributed rows and deletes the
* original orphan.
*/
public function test_reaps_orphan_with_matching_run_id_posts(): void {
$old_ts = gmdate( 'Y-m-d H:i:s', time() - ( 2 * HOUR_IN_SECONDS ) );
$this->seed_orphans( [ [ 'id' => 99, 'run_id' => 'run-abc', 'created_at' => $old_ts, 'estimated_cost' => 0.40 ] ] );
// In the v0.8.1 world both sources agree. Meta is the reaper's gate;
// gen_log also has rows so `amortize_research_costs()` can do its
// own internal post-count query.
Functions\when( 'get_posts' )->alias(
static fn( $args ) => ( '_prautoblogger_run_id' === ( $args['meta_key'] ?? '' ) && 'run-abc' === ( $args['meta_value'] ?? '' ) )
? [ 101, 102 ]
: []
);
$this->seed_gen_log_posts_for_run( [ 101, 102 ] );
$stats = \PRAutoBlogger_Research_Reaper::reap();
$this->assertSame( 1, $stats['reaped'] );
$this->assertSame( 0, $stats['deleted'] );
$this->assertSame( 0, $stats['skipped'] );
$this->assertCount( 2, $this->inserted_rows, 'One amortized row per post should be inserted.' );
// Original orphan deleted by amortize_research_costs.
$this->assertNotEmpty( array_filter( $this->deleted_rows, static fn( $d ) => ( $d[1]['id'] ?? null ) === 99 ) );
}
/**
* 2. Orphan within the 1-hour grace window is left alone — a live
* pipeline may still be in the middle of its own amortize step.
*/
public function test_skips_orphan_within_grace_period(): void {
// The primary SELECT filters on `created_at < (now - 1h)`, so a
// fresh orphan is excluded from the result set at the DB boundary.
// We simulate that by returning an empty orphan list.
$this->seed_orphans( [] );
Functions\when( 'get_posts' )->justReturn( [ 101, 102 ] );
$stats = \PRAutoBlogger_Research_Reaper::reap();
$this->assertSame( 0, $stats['reaped'] );
$this->assertSame( 0, $stats['deleted'] );
$this->assertSame( 0, $stats['skipped'] );
$this->assertEmpty( $this->inserted_rows );
$this->assertEmpty( $this->deleted_rows );
}
/**
* 3. Orphan older than 7 days with zero matching posts is deleted
* outright — research cost is sunk with nothing to attribute to.
*/
public function test_deletes_orphan_with_no_articles_after_7_days(): void {
$stale_ts = gmdate( 'Y-m-d H:i:s', time() - ( 8 * DAY_IN_SECONDS ) );
$this->seed_orphans( [ [ 'id' => 77, 'run_id' => 'run-dead', 'created_at' => $stale_ts ] ] );
// No posts via meta, no posts via gen_log.
Functions\when( 'get_posts' )->justReturn( [] );
$this->seed_gen_log_posts_for_run( [] );
$stats = \PRAutoBlogger_Research_Reaper::reap();
$this->assertSame( 0, $stats['reaped'] );
$this->assertSame( 1, $stats['deleted'] );
$this->assertNotEmpty( array_filter( $this->deleted_rows, static fn( $d ) => ( $d[1]['id'] ?? null ) === 77 ) );
}
/**
* 4. When `_prautoblogger_run_id` post_meta is absent (legacy posts
* predating v0.8.1), the reaper falls back to querying gen_log for
* distinct post_ids carrying the same run_id.
*/
public function test_falls_back_to_gen_log_when_post_meta_missing(): void {
$old_ts = gmdate( 'Y-m-d H:i:s', time() - ( 2 * HOUR_IN_SECONDS ) );
$this->seed_orphans( [ [ 'id' => 55, 'run_id' => 'run-legacy', 'created_at' => $old_ts, 'estimated_cost' => 0.30 ] ] );
// Meta lookup returns nothing.
Functions\when( 'get_posts' )->justReturn( [] );
// But gen_log has two posts with this run_id.
$this->seed_gen_log_posts_for_run( [ 201, 202 ] );
$stats = \PRAutoBlogger_Research_Reaper::reap();
$this->assertSame( 1, $stats['reaped'] );
$this->assertCount( 2, $this->inserted_rows );
}
/**
* 5. A second reap run is a no-op — the first run deleted the orphan
* and inserted amortized per-article rows, so the scan returns empty.
*/
public function test_idempotent_on_repeat_run(): void {
// Simulate "already reaped" state: scan returns no orphans.
$this->seed_orphans( [] );
$stats_1 = \PRAutoBlogger_Research_Reaper::reap();
$stats_2 = \PRAutoBlogger_Research_Reaper::reap();
$this->assertSame( 0, $stats_1['reaped'] );
$this->assertSame( 0, $stats_2['reaped'] );
$this->assertEmpty( $this->inserted_rows );
$this->assertEmpty( $this->deleted_rows );
}
}