28947a0caa
Commit 2 (final scope) of the in-plugin editorial image pipeline (ARCHITECTURE.md #21). A deterministic local composer now runs between provider bytes and sideload: Image A yields a corner-marked featured (1200x632) + branded OG (1200x630, teal band, logo, baked caption in Poppins SemiBold) + square card (1080x1080, cream panel, Poppins Bold, teal footer with the reverse lockup); Image B gets the corner mark only. - Capability ladder: imagick (full compositing) -> wp_get_image_editor resize-only (unbranded, WARNING once) -> pass-through (WARNING once); probe cached in prautoblogger_image_compose_capability, fingerprinted by PHP version + imagick/gd presence so host flips auto-invalidate. compose() never throws; composition can never fail a publish. - Variants sideloaded with a role filename suffix; attachment meta _prautoblogger_image_role + _prautoblogger_base_attachment_id; post meta _prautoblogger_og_image_id (frozen for the rebuilt SEO stage) + _prautoblogger_square_image_id. No cost-tracker rows ($0 local stage; duration logged on the image_composer channel). - New Images settings: compose_enabled ('1'), compose_variants ('og,square'), featured_mark_enabled ('1') — read at point of use. Geometry ships as Layout defaults behind the prautoblogger_image_compose_layout filter. - Vendored brand rasters (assets/brand) + bundled OFL Poppins faces (assets/fonts) for per-environment byte-stable output (stripImage + PNG date/time chunks excluded). Validated on Hostinger PHP 8.3.30 / ImageMagick 7.1.1-43: php -l clean on all touched files, double render byte-identical (sha256), exact variant geometry. - Fix: featured/Image B alt text is the editorial caption (was the model name); model still persists in _prautoblogger_image_model. - Image_Attacher extracted from Image_Pipeline (300-line compliance); sideloader gains an optional filename suffix param (back-compat ''). - Version 0.16.0 -> 0.17.0 + CHANGELOG + ARCHITECTURE.md #21 + CONVENTIONS.md composer guide in this commit. Unit tests: layout clamp boundaries, capability ladder, cache invalidation, attacher meta-linking, pipeline integration, imagick determinism (gated). Agent-Session: engineer-prautoblogger-image-composer-20260611
457 lines
17 KiB
PHP
457 lines
17 KiB
PHP
<?php
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/**
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* Tests for PRAutoBlogger_Image_Pipeline.
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*
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* Validates image generation orchestration, including A/B generation,
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* cost tracking, and graceful failure handling.
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*
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* @package PRAutoBlogger\Tests\Core
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*/
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namespace PRAutoBlogger\Tests\Core;
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use PRAutoBlogger\Tests\BaseTestCase;
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use Brain\Monkey\Functions;
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class ImagePipelineTest extends BaseTestCase {
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protected function setUp(): void {
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parent::setUp();
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// v0.17.0: the composer caches its capability probe via update_option
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// and keeps a once-per-run warning flag that must not leak between tests.
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\PRAutoBlogger_Image_Composer::reset_run_state();
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Functions\when( 'update_option' )->justReturn( true );
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// Mock WordPress functions used by the pipeline and its dependencies.
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Functions\when( 'is_wp_error' )->alias( function ( $thing ) {
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return $thing instanceof \WP_Error;
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} );
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Functions\when( 'wp_generate_uuid4' )->justReturn( 'test-uuid' );
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Functions\when( 'get_option' )->alias( function ( $key, $default = false ) {
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static $options = [
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'prautoblogger_image_enabled' => '1',
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'prautoblogger_image_style_suffix' => 'Style: test style',
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];
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return $options[ $key ] ?? $default;
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} );
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Functions\when( 'sanitize_text_field' )->returnArg();
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Functions\when( 'wp_strip_all_tags' )->alias( function ( $str ) {
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return trim( strip_tags( $str ) );
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} );
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Functions\when( 'update_post_meta' )->justReturn( true );
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Functions\when( 'set_post_thumbnail' )->justReturn( true );
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Functions\when( 'get_post_meta' )->justReturn( '' );
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Functions\when( 'get_post' )->justReturn( (object) [ 'ID' => 1, 'post_content' => '<p>Test content</p>' ] );
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Functions\when( 'wp_update_post' )->justReturn( 1 );
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Functions\when( 'wp_get_attachment_url' )->justReturn( 'https://example.com/img.png' );
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Functions\when( 'sanitize_title' )->returnArg();
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Functions\when( 'esc_html__' )->returnArg();
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Functions\when( 'esc_url' )->returnArg();
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Functions\when( 'esc_attr' )->returnArg();
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Functions\when( 'esc_html' )->returnArg();
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}
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/**
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* Test generate_and_attach_images() returns early if disabled.
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*/
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public function test_generate_and_attach_images_skipped_if_disabled(): void {
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Functions\when( 'get_option' )->alias( function ( $key, $default = false ) {
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static $options = [ 'prautoblogger_image_enabled' => '0' ];
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return $options[ $key ] ?? $default;
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} );
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$provider = $this->createMock( \PRAutoBlogger_Image_Provider_Interface::class );
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$provider->expects( $this->never() )->method( 'generate_image' );
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$cost_tracker = $this->createMock( \PRAutoBlogger_Cost_Tracker::class );
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$pipeline = new \PRAutoBlogger_Image_Pipeline( $provider, $cost_tracker );
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$result = $pipeline->generate_and_attach_images( 1, [ 'post_title' => 'Test' ] );
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$this->assertArrayHasKey( 'cost_usd', $result );
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$this->assertArrayHasKey( 'errors', $result );
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$this->assertEmpty( $result['errors'] );
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}
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/**
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* Test generate_and_attach_images() returns cost and error array structure.
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*
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* Pipeline now calls generate_image_batch() with keyed requests.
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*/
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public function test_generate_and_attach_images_returns_correct_structure(): void {
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$image_result = [
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'bytes' => 'fake_image_data',
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'mime_type' => 'image/png',
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'width' => 1200,
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'height' => 630,
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'model' => 'test-model',
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'seed' => 123,
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'cost_usd' => 0.05,
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'latency_ms' => 2000,
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];
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$provider = $this->createMock( \PRAutoBlogger_Image_Provider_Interface::class );
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$provider->method( 'estimate_cost' )->willReturn( 0.05 );
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$provider->method( 'generate_image_batch' )->willReturn( [
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'image_a' => $image_result,
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] );
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$cost_tracker = $this->createMock( \PRAutoBlogger_Cost_Tracker::class );
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$cost_tracker->method( 'would_exceed_budget' )->willReturn( false );
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$pipeline = new \PRAutoBlogger_Image_Pipeline( $provider, $cost_tracker );
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Functions\when( 'get_temp_dir' )->justReturn( '/tmp/' );
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Functions\when( 'media_handle_sideload' )->justReturn( 42 );
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$result = $pipeline->generate_and_attach_images( 1, [ 'post_title' => 'Test' ] );
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$this->assertArrayHasKey( 'cost_usd', $result );
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$this->assertArrayHasKey( 'errors', $result );
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$this->assertIsFloat( $result['cost_usd'] );
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$this->assertIsArray( $result['errors'] );
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}
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/**
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* Test that cost is accumulated when both images are generated via batch.
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*/
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public function test_cost_is_accumulated_for_both_images(): void {
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$image_result = [
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'bytes' => 'fake_image_data',
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'mime_type' => 'image/png',
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'width' => 1200,
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'height' => 630,
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'model' => 'test-model',
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'cost_usd' => 0.05,
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'latency_ms' => 2000,
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];
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$provider = $this->createMock( \PRAutoBlogger_Image_Provider_Interface::class );
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$provider->method( 'estimate_cost' )->willReturn( 0.05 );
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$provider->method( 'generate_image_batch' )->willReturn( [
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'image_a' => $image_result,
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'image_b' => $image_result,
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] );
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$cost_tracker = $this->createMock( \PRAutoBlogger_Cost_Tracker::class );
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$cost_tracker->method( 'would_exceed_budget' )->willReturn( false );
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$cost_tracker->expects( $this->exactly( 2 ) )->method( 'log_image_generation' );
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$pipeline = new \PRAutoBlogger_Image_Pipeline( $provider, $cost_tracker );
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Functions\when( 'get_temp_dir' )->justReturn( '/tmp/' );
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Functions\when( 'media_handle_sideload' )->justReturn( 42 );
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$result = $pipeline->generate_and_attach_images(
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1,
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[ 'post_title' => 'Test' ],
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[ 'title' => 'Source' ]
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);
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// Cost should be accumulated from both images ($0.05 × 2 = $0.10).
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$this->assertEqualsWithDelta( 0.10, $result['cost_usd'], 0.001 );
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}
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/**
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* Test that Image B is NOT included in the batch when source_data is null.
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*
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* Regression test: the pipeline must only send 'image_a' in the batch
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* request when no source data is provided.
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*/
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public function test_image_b_skipped_when_source_data_is_null(): void {
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$image_result = [
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'bytes' => 'fake_image_data',
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'mime_type' => 'image/png',
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'width' => 1200,
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'height' => 630,
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'model' => 'test-model',
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'cost_usd' => 0.05,
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'latency_ms' => 2000,
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];
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$provider = $this->createMock( \PRAutoBlogger_Image_Provider_Interface::class );
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$provider->method( 'estimate_cost' )->willReturn( 0.05 );
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// Verify batch only contains 'image_a'.
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$provider->expects( $this->once() )
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->method( 'generate_image_batch' )
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->with( $this->callback( function ( $requests ) {
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return array_key_exists( 'image_a', $requests )
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&& ! array_key_exists( 'image_b', $requests );
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} ) )
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->willReturn( [ 'image_a' => $image_result ] );
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$cost_tracker = $this->createMock( \PRAutoBlogger_Cost_Tracker::class );
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$cost_tracker->method( 'would_exceed_budget' )->willReturn( false );
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$cost_tracker->expects( $this->exactly( 1 ) )->method( 'log_image_generation' );
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$pipeline = new \PRAutoBlogger_Image_Pipeline( $provider, $cost_tracker );
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Functions\when( 'get_temp_dir' )->justReturn( '/tmp/' );
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Functions\when( 'media_handle_sideload' )->justReturn( 42 );
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$result = $pipeline->generate_and_attach_images( 1, [ 'post_title' => 'Test' ], null );
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$this->assertArrayHasKey( 'image_a_id', $result );
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$this->assertArrayNotHasKey( 'image_b_id', $result );
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}
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/**
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* Test graceful handling when batch generation throws.
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*/
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public function test_graceful_failure_when_batch_generation_throws(): void {
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$provider = $this->createMock( \PRAutoBlogger_Image_Provider_Interface::class );
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$provider->method( 'estimate_cost' )->willReturn( 0.05 );
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$provider->method( 'generate_image_batch' )->willThrowException( new \Exception( 'API timeout' ) );
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$cost_tracker = $this->createMock( \PRAutoBlogger_Cost_Tracker::class );
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$cost_tracker->method( 'would_exceed_budget' )->willReturn( false );
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$pipeline = new \PRAutoBlogger_Image_Pipeline( $provider, $cost_tracker );
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$result = $pipeline->generate_and_attach_images( 1, [ 'post_title' => 'Test' ] );
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$this->assertIsArray( $result );
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$this->assertNotEmpty( $result['errors'] );
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$this->assertStringContainsString( 'API timeout', implode( ' ', $result['errors'] ) );
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}
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/**
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* Test that a Logger::warning row is persisted when image_data carries an error.
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*
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* Covers Issue 2 from the image-mime-bug thread: previously the pipeline
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* pushed the error into $result['errors'] silently, with no WARNING-level
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* event_log row visible to ops. This regression-guards that a WARNING row
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* now fires whether or not the outer catch in the caller triggers.
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*/
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public function test_partial_batch_failure_emits_warning_log_row(): void {
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// Seed Logger's log_level so warnings actually get written.
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Functions\when( 'get_option' )->alias( function ( $key, $default = false ) {
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static $options = [
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'prautoblogger_image_enabled' => '1',
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'prautoblogger_log_level' => 'info',
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];
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return $options[ $key ] ?? $default;
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} );
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$mock_wpdb = $this->create_mock_wpdb();
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$captured_rows = [];
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$mock_wpdb->method( 'insert' )->willReturnCallback(
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function ( $table, $row ) use ( &$captured_rows ) {
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$captured_rows[] = $row;
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return 1;
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}
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);
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$GLOBALS['wpdb'] = $mock_wpdb;
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$provider = $this->createMock( \PRAutoBlogger_Image_Provider_Interface::class );
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$provider->method( 'estimate_cost' )->willReturn( 0.05 );
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$provider->method( 'generate_image_batch' )->willReturn( [
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'image_a' => [ 'error' => 'HTTP 400: flux-1-schnell is not a valid model ID' ],
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] );
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$cost_tracker = $this->createMock( \PRAutoBlogger_Cost_Tracker::class );
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$cost_tracker->method( 'would_exceed_budget' )->willReturn( false );
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$pipeline = new \PRAutoBlogger_Image_Pipeline( $provider, $cost_tracker );
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$pipeline->generate_and_attach_images( 1, [ 'post_title' => 'Test' ], null );
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$warning_rows = array_filter(
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$captured_rows,
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static fn( $row ) => ( $row['level'] ?? '' ) === 'warning'
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&& ( $row['context'] ?? '' ) === 'image_pipeline'
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);
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$this->assertNotEmpty(
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$warning_rows,
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'Expected at least one image_pipeline WARNING row when image_data has an error key.'
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);
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unset( $GLOBALS['wpdb'] );
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}
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/**
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* NSFW-blocked slots should be retried once with a sanitized fallback
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* prompt. Retry success replaces the error entry with a real image.
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*/
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public function test_nsfw_blocked_slot_is_retried_with_fallback_prompt(): void {
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// NSFW retry is default on; explicit for clarity.
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Functions\when( 'get_option' )->alias( function ( $key, $default = false ) {
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static $options = [
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'prautoblogger_image_enabled' => '1',
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'prautoblogger_image_nsfw_retry' => '1',
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'prautoblogger_image_style_suffix' => 'Style: test suffix',
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'prautoblogger_log_level' => 'info',
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];
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return $options[ $key ] ?? $default;
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} );
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$success_result = [
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'bytes' => 'fake_image_bytes',
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'mime_type' => 'image/png',
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'width' => 1200,
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'height' => 632,
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'model' => 'flux-1-schnell',
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'cost_usd' => 0.000834,
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'latency_ms' => 1500,
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];
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$provider = $this->createMock( \PRAutoBlogger_Image_Provider_Interface::class );
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$provider->method( 'estimate_cost' )->willReturn( 0.001 );
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// First batch: NSFW. Second batch (retry for image_a): success.
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$provider->expects( $this->exactly( 2 ) )
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->method( 'generate_image_batch' )
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->willReturnOnConsecutiveCalls(
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[ 'image_a' => [ 'error' => 'NSFW', 'error_type' => 'nsfw_blocked' ] ],
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[ 'image_a' => $success_result ]
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);
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$cost_tracker = $this->createMock( \PRAutoBlogger_Cost_Tracker::class );
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$cost_tracker->method( 'would_exceed_budget' )->willReturn( false );
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Functions\when( 'get_temp_dir' )->justReturn( '/tmp/' );
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Functions\when( 'media_handle_sideload' )->justReturn( 42 );
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$pipeline = new \PRAutoBlogger_Image_Pipeline( $provider, $cost_tracker );
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$result = $pipeline->generate_and_attach_images( 1, [ 'post_title' => 'Test Article' ] );
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// Retry succeeded — image_a_id set, no errors.
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$this->assertArrayHasKey( 'image_a_id', $result );
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$this->assertEmpty( $result['errors'] );
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}
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/**
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* When `prautoblogger_image_nsfw_retry` is off, blocked slots stay
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* blocked — no second HTTP call, pipeline publishes without that
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* image. Failsafe for when the filter gets trigger-happy.
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*/
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public function test_nsfw_retry_skipped_when_setting_disabled(): void {
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Functions\when( 'get_option' )->alias( function ( $key, $default = false ) {
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static $options = [
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'prautoblogger_image_enabled' => '1',
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'prautoblogger_image_nsfw_retry' => '0',
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];
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return $options[ $key ] ?? $default;
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} );
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$provider = $this->createMock( \PRAutoBlogger_Image_Provider_Interface::class );
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$provider->method( 'estimate_cost' )->willReturn( 0.001 );
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$provider->expects( $this->exactly( 1 ) )
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->method( 'generate_image_batch' )
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->willReturn( [
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'image_a' => [ 'error' => 'NSFW', 'error_type' => 'nsfw_blocked' ],
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] );
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$cost_tracker = $this->createMock( \PRAutoBlogger_Cost_Tracker::class );
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$cost_tracker->method( 'would_exceed_budget' )->willReturn( false );
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$pipeline = new \PRAutoBlogger_Image_Pipeline( $provider, $cost_tracker );
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$result = $pipeline->generate_and_attach_images( 1, [ 'post_title' => 'Test Article' ] );
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$this->assertArrayNotHasKey( 'image_a_id', $result );
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$this->assertNotEmpty( $result['errors'] );
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}
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/**
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* v0.17.0: composed OG/square variants are sideloaded and meta-linked —
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* role + base-attachment meta on the variant attachments, role-specific
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* image ID meta on the post, and the featured attachment tagged with its
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* role. Composition adds no cost-tracker rows beyond the primary image.
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*/
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public function test_composed_variants_are_sideloaded_and_meta_linked(): void {
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$image_result = [
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'bytes' => 'fake_image_data',
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'mime_type' => 'image/png',
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'width' => 1200,
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'height' => 632,
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'model' => 'test-model',
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'cost_usd' => 0.05,
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'latency_ms' => 2000,
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];
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$provider = $this->createMock( \PRAutoBlogger_Image_Provider_Interface::class );
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$provider->method( 'estimate_cost' )->willReturn( 0.05 );
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$provider->method( 'generate_image_batch' )->willReturn( [ 'image_a' => $image_result ] );
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$cost_tracker = $this->createMock( \PRAutoBlogger_Cost_Tracker::class );
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$cost_tracker->method( 'would_exceed_budget' )->willReturn( false );
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// Exactly one cost row: the primary image. Variants are $0 local renders.
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$cost_tracker->expects( $this->exactly( 1 ) )->method( 'log_image_generation' );
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$composer = new class() implements \PRAutoBlogger_Image_Composer_Interface {
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public function compose( array $image_data, array $context ): array {
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return [
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[ 'bytes' => 'marked', 'mime_type' => 'image/png', 'width' => 1200, 'height' => 632, 'role' => 'featured' ],
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[ 'bytes' => 'og_png', 'mime_type' => 'image/png', 'width' => 1200, 'height' => 630, 'role' => 'og' ],
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[ 'bytes' => 'sq_png', 'mime_type' => 'image/png', 'width' => 1080, 'height' => 1080, 'role' => 'square' ],
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];
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}
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};
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Functions\when( 'get_temp_dir' )->justReturn( '/tmp/' );
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$next_id = 41;
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Functions\when( 'media_handle_sideload' )->alias( function () use ( &$next_id ) {
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return ++$next_id; // 42 featured, 43 og, 44 square.
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||
} );
|
||
|
||
$meta_calls = [];
|
||
Functions\when( 'update_post_meta' )->alias( function ( $object_id, $key, $value ) use ( &$meta_calls ) {
|
||
$meta_calls[] = [ $object_id, $key, $value ];
|
||
return true;
|
||
} );
|
||
|
||
$pipeline = new \PRAutoBlogger_Image_Pipeline( $provider, $cost_tracker, null, $composer );
|
||
$result = $pipeline->generate_and_attach_images( 1, [ 'post_title' => 'Test' ], null );
|
||
|
||
$this->assertSame( 42, $result['image_a_id'] );
|
||
$this->assertContains( [ 42, '_prautoblogger_image_role', 'featured' ], $meta_calls );
|
||
$this->assertContains( [ 43, '_prautoblogger_image_role', 'og' ], $meta_calls );
|
||
$this->assertContains( [ 43, '_prautoblogger_base_attachment_id', 42 ], $meta_calls );
|
||
$this->assertContains( [ 1, '_prautoblogger_og_image_id', 43 ], $meta_calls );
|
||
$this->assertContains( [ 44, '_prautoblogger_image_role', 'square' ], $meta_calls );
|
||
$this->assertContains( [ 44, '_prautoblogger_base_attachment_id', 42 ], $meta_calls );
|
||
$this->assertContains( [ 1, '_prautoblogger_square_image_id', 44 ], $meta_calls );
|
||
}
|
||
|
||
/**
|
||
* Test graceful handling when one image in the batch returns an error.
|
||
*/
|
||
public function test_partial_batch_failure_handled_gracefully(): void {
|
||
$provider = $this->createMock( \PRAutoBlogger_Image_Provider_Interface::class );
|
||
$provider->method( 'estimate_cost' )->willReturn( 0.05 );
|
||
$provider->method( 'generate_image_batch' )->willReturn( [
|
||
'image_a' => [
|
||
'bytes' => 'fake_image_data',
|
||
'mime_type' => 'image/png',
|
||
'width' => 1200,
|
||
'height' => 630,
|
||
'model' => 'test-model',
|
||
'cost_usd' => 0.05,
|
||
'latency_ms' => 2000,
|
||
],
|
||
'image_b' => [ 'error' => 'HTTP 429: rate limited' ],
|
||
] );
|
||
|
||
$cost_tracker = $this->createMock( \PRAutoBlogger_Cost_Tracker::class );
|
||
$cost_tracker->method( 'would_exceed_budget' )->willReturn( false );
|
||
// Only Image A gets logged — Image B failed.
|
||
$cost_tracker->expects( $this->exactly( 1 ) )->method( 'log_image_generation' );
|
||
|
||
$pipeline = new \PRAutoBlogger_Image_Pipeline( $provider, $cost_tracker );
|
||
|
||
Functions\when( 'get_temp_dir' )->justReturn( '/tmp/' );
|
||
Functions\when( 'media_handle_sideload' )->justReturn( 42 );
|
||
|
||
$result = $pipeline->generate_and_attach_images(
|
||
1,
|
||
[ 'post_title' => 'Test' ],
|
||
[ 'title' => 'Source' ]
|
||
);
|
||
|
||
// Image A succeeds, Image B records an error.
|
||
$this->assertArrayHasKey( 'image_a_id', $result );
|
||
$this->assertArrayNotHasKey( 'image_b_id', $result );
|
||
$this->assertNotEmpty( $result['errors'] );
|
||
$this->assertStringContainsString( '429', implode( ' ', $result['errors'] ) );
|
||
}
|
||
}
|