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blend_text_gamma_setting switched the compositor's process-wide text gamma (psblend::set_text_gamma) to 1.0 and back while other engine unit tests ran in parallel threads. turns_at_every_depth_and_mode flattens a document with a type layer before a turn and again after edit.undo; when the toggle landed between the two flattens, anti-aliased glyph edges blended under different gammas and the bit-exact comparison failed (seen once on Windows CI). Move the gamma test to crates/engine/tests/text_gamma.rs (its own process), document the hazard on set_text_gamma, and make the undo assertion report the turn, depth, mode, differing pixel count, max difference and first pixel. Co-authored-by: Claude Opus 5.5 <noreply@anthropic.com>
31 lines
1.7 KiB
Rust
31 lines
1.7 KiB
Rust
//! Edit › Color Settings › "Blend Text Colors Using Gamma" drives the compositor's
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//! application-wide text gamma (`photocraft_compose::psblend::text_gamma`).
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//!
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//! This test lives in its own integration-test binary (its own process) on purpose: switching
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//! the gamma away from the default changes how every type layer composites, so running it next
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//! to the engine's unit tests let a concurrent test flatten one document under two gammas
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//! (`canvas_geom::tests::turns_at_every_depth_and_mode` compares the composite before an edit
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//! with the one after its undo, and failed on Windows CI that way). Keep any other test that
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//! changes the gamma in this file.
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use photocraft_engine::Session;
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use serde_json::json;
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#[test]
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fn blend_text_gamma_setting() {
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let mut s = Session::new();
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assert!((s.color.settings.blend_text_gamma - 1.45).abs() < 1e-6);
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assert!(s.execute("edit.colorSettings", json!({"blendTextGamma": 3.0})).is_err());
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// The compositor's (application-wide) gamma follows the setting.
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s.execute("edit.colorSettings", json!({"blendTextGamma": 1.45})).unwrap();
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assert!((photocraft_compose::psblend::text_gamma() - 1.45).abs() < 1e-6);
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let r = s.execute("edit.colorSettings", json!({"blendTextGamma": false})).unwrap();
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assert_eq!(r["settings"]["blendTextGamma"], 1.0);
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assert_eq!(photocraft_compose::psblend::text_gamma(), 1.0);
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s.execute("edit.colorSettings", json!({"blendTextGamma": 1.8})).unwrap();
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assert!((photocraft_compose::psblend::text_gamma() - 1.8).abs() < 1e-6);
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s.execute("edit.colorSettings", json!({"blendTextGamma": true})).unwrap();
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assert!((s.color.settings.blend_text_gamma - 1.45).abs() < 1e-6);
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assert!((photocraft_compose::psblend::text_gamma() - 1.45).abs() < 1e-6);
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}
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