初始化奇妙小屏幕控制器项目

2026-09-08 22:56:52 +08:00
commit 8d368de3b5
491 changed files with 67678 additions and 0 deletions
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+from __future__ import annotations
+
+from pathlib import Path
+
+import pytest
+
+from scripts.measure_gpio_status import MeasurementError, percentile_95, validate_samples
+
+
+def sample(frames: int, *, misses: int = 0, fault: int = 0, performance: bool = True):
+    return {
+        "screen": {
+            "driver_status": {
+                "actual_refresh_rate_hz": 97.4,
+                "panel_scan_rate_hz": 97.4,
+                "scans_per_frame": 1,
+                "completed_frames": frames,
+                "completed_scans": frames,
+                "deadline_misses": misses,
+                "oe_pulse_faults": fault,
+                "oe_forced_blanks": 0,
+                "driver_error": None,
+                "oe_timing_error": None,
+                "safeoff_error": None,
+                "cpu_affinity": 3,
+                "cpu_affinity_active": True,
+                "realtime_priority": 50,
+                "realtime_priority_active": True,
+                "memory_locked": True,
+            }
+        },
+        "system": {
+            "performance_mode": {
+                "requested": performance,
+                "effective": performance,
+                "current_governors": {"policy0": "performance" if performance else "schedutil"},
+                "restore_governors": {"policy0": "schedutil"},
+            }
+        },
+    }
+
+
+def test_gpio_measurement_accepts_equal_progress_and_fixed_rgb_frame():
+    result = validate_samples(
+        [sample(100), sample(198), sample(295)],
+        performance="on",
+        frame_before="same",
+        frame_after="same",
+    )
+    assert result["completed_frames_delta"] == 195
+    assert result["deadline_miss_rate"] == 0
+    assert percentile_95([1, 2, 3, 100]) == 100
+
+
+def test_gpio_measurement_rejects_fault_growth_and_changed_frame():
+    with pytest.raises(MeasurementError, match="oe_pulse_faults"):
+        validate_samples(
+            [sample(100), sample(198, fault=1)],
+            performance="on",
+            frame_before="same",
+            frame_after="same",
+        )
+    with pytest.raises(MeasurementError, match="RGB frame changed"):
+        validate_samples(
+            [sample(100), sample(198)],
+            performance="on",
+            frame_before="before",
+            frame_after="after",
+        )
+
+
+def test_gpio_measurement_requires_governor_restore_when_off():
+    off = [sample(100, performance=False), sample(198, performance=False)]
+    validate_samples(off, performance="off", frame_before="same", frame_after="same")
+    off[-1]["system"]["performance_mode"]["current_governors"] = {"policy0": "powersave"}
+    with pytest.raises(MeasurementError, match="not restored"):
+        validate_samples(off, performance="off", frame_before="same", frame_after="same")
+
+
+def test_preview_performance_unit_is_isolated_and_preserves_realtime_contract():
+    source_root = Path(__file__).resolve().parents[1]
+    unit = (source_root / "systemd/matrix-screen-controller-preview-perf.service").read_text(
+        encoding="utf-8"
+    )
+    assert "Conflicts=matrix-screen-controller.service" in unit
+    assert "MATRIX_DATA_DIR=/var/tmp/matrix-screen-controller-preview-perf-20260824" in unit
+    assert "MATRIX_RUNTIME_DIR=/run/matrix-screen-controller-preview-perf-20260824" in unit
+    assert "/var/lib/matrix-screen-controller" not in unit
+    assert "CPUAffinity=0 1 2" in unit
+    assert "LimitRTPRIO=50" in unit
+    assert "LimitMEMLOCK=infinity" in unit
+    assert unit.count("hub75_safeoff") == 2
+    assert "app.system.performance restore" in unit