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08 — Test coverage (behavioral)

No line/branch % claimed — no coverage tool is wired. This page is the definitive behavioral FEATURE × TEST matrix from the live tree: what is tested, where, and how. Gate wiring (lefthook, ctest registrations) lives on quality-gates.md and is only referenced, not repeated.

Dual harness (+ script gates)

Harness Source Runner Count (this refresh)
C++ Catch2 src/Engine/tests/engine_tests.cpp ctest → NPSEngineTests 90 TEST_CASEs (73 TEST_CASE + 17 TEST_CASE_METHOD)
C# xUnit tests/NPSEngine.Tests/*.cs (10 files) dotnet test 115 methods (111 [Fact] + 4 [Theory], all Theories in EngineBridgeTests.cs)
Script fitness scripts/*.sh lefthook pre-push + ctest layer-fitness (live), no-placeholder-scan (live), fixture-present (live), docs-deploy (live), structural-fitness (disabled), smoke-apps (disabled), production Test*-gate (ctest-only)

HOW legend — golden = real Benchy fixture with hard asserts; synthetic = embedded gcode/XML/temp files; crafted = byte-patched ZIP; bridge = P/Invoke into the real libNPSEngine.so; headless = Avalonia.Headless real controls; logic = pure managed math; ABI smoke = entry-point call without semantic assert; structural = grep/nm/script scan.

Golden fixture

4-colors+Benchy+AMS+test-v2.3mf (repo root) = 1 plate / 16562 vertices / 33097 triangles / 4 palette colors (0xFFC12E1F, 0xFFFEC600, 0xFF00AE42, 0xFF0A2989). Constants pinned at engine_tests.cpp:93-95; resolver ResolveBenchyPath() (:102), RAII BenchyFixture (:139). The fixture-present pre-push hook (lefthook.yml:139-140) refuses to push without it — there is no synthetic fallback for loader tests.

Consumers (hard golden asserts, not smoke):

Harness Tests
C++ load :287/:1092; ZIP :339/:1102; mesh query :374; BenchyFixture suite :621/:630/:638 (exact palette)/:651 (first-vertex transforms)/:674 (bounds); metadata-only :706; missing-entry ZIP :1056; bounds overload :4390; viewport/warp :1674; perf :1812; render SHA :2437; gen+analyze :2538-:2915
C# EngineBridgeTests.cs:292 (full contract via Marshal.Copy), :601, :669, :744, :1008, :1059 (unsafe reads), :1772 (SHA parity); EngineSessionTests.cs:95,:142,:166,:185,:211; MeshControllerTests.cs:51,:91; ViewportControllerTests.cs:460,:509

Test-hook-gated exports (why they exist)

NPS_ENABLE_TEST_HOOKS (src/Engine/CMakeLists.txt:31, auto-ON when BUILD_TESTING=ON at :50-60, defined at :212-213) compiles extra C ABI entry points that let both harnesses drive internals without exposing them in production: TestParseModelXmlForHarness, TestZipReaderExtractModelAndMetadata, TestZipReaderDirectError, TestGetPlateThumbnailSize, GetMeshBounds (abi/nps_c_api.h:247-274), TestGcodeParseForHarness, TestThermalGridForHarness, TestStructuralScoreForHarness, TestAnalysisManagerThermal (:398-411). GetMeshBounds is test-gated because no app/C# consumer exists — production computes bounds from the vertex stream. The production gate (nps-n1m-12-production-gate.sh) asserts zero Test* symbols via nm -D; see quality-gates.md for why that gate never runs inside lefthook (hooks always build Debug+tests).

Feature × test matrix

C++/C# cells give line anchors (engine_tests.cpp / the named C# file).

Load / 3MF / ZIP

Feature Where C++ C# Scripts HOW Verdict
3MF load end-to-end engine.cpp:540/550 :287,:1092,:621,:630 EngineBridgeTests:292,:601; EngineSessionTests:95 fixture-present golden covered
ZIP/OPC reader engine_zip.cpp :339,:1102 indirect via load tests — golden + Test* hooks covered (C++); partial C# (indirect only)
ZIP error paths (EOCD/truncated/sig/compression/deflate/missing/stored-size/null) engine_zip.cpp Zip error suite :965-:1084 (8 cases: 7 ZipReaderFixture + null-args plain TEST_CASE at :1084) only EngineBridgeTests:465 (magic/empty/size) — crafted byte-patched ZIPs covered (C++); partial C#
3MF XML parser engine.cpp:2084/2325/2472 :1178,:1206,:1224,:1240 — — synthetic real-derived XML covered (C++ only)
Mesh queries (verts/tris/colors/plates/unit) engine.cpp:988-1109 :374,:651 EngineBridgeTests:292,:1059 — golden, exact counts+samples covered
Mesh bounds (AABB) engine.cpp:1059/1077 :529,:674,:4390 — (test-gated export, by design) — golden via test-gated export covered (C++); N/A C#
Palette decode (4-color AMS) engine_color.cpp :638 exact hex EngineBridgeTests:292; MeshControllerTests:51 — golden exact-hex covered
Plate thumbnail engine.cpp:1116 size>1000B inside :374 — — golden, SIZE-only partial — PNG content never verified
Multi-plate / multi-object engine.cpp:885 hardcodes plate_1 — — — no multi-plate fixture exists NOT TESTED (feature single-plate by design)
Loader error model engine.cpp:550-970 :724,:743,:816 EngineBridgeTests:446,:465,:555; EngineSessionTests:127 — synthetic temp files + C ABI covered

G-code generation & parsing

Feature Where C++ C# Scripts HOW Verdict
GenerateGcode (demo toolpath, not slicing) engine.cpp:1215 :2538,:2637,:2780 EngineBridgeTests:744; EngineSessionTests:166 — golden + demo gen covered (as demo toolpath)
Gen errors + C ABI buffer/file roundtrip engine.cpp:1593/2947-3028 :2700,:2729 — — synthetic + golden + ABI covered (C++); partial (no C# gen-error cases)
Real slicing (slice/ module) does not exist (engine.h:155) — — — — N/A — feature not implemented
Text gcode parse (layers, M82/83, G92, M204, arcs, Bambu markers) engine.cpp:3621 :1290,:1346,:1371,:1398,:1410,:3178 EngineBridgeTests:636 — synthetic via Test*; optional real file covered
bgcode binary parse engine.cpp:3407/4049 :1509 (skips if fixture absent) EngineBridgeTests:823 (hard-requires, >1000 moves, maxL≥249) — real test_cube_binary.bgcode covered (happy path); corrupt bgcode (bad CRC) NOT TESTED anywhere
Parsed/generated text split engine.cpp:1436/1453 :1447 EngineBridgeTests:923 — synthetic via C ABI, sentinels covered
Move array (shared after gen or parse) engine.cpp:1460/1464 inside :1447,:2538,:2729 EngineSessionTests:142,:166 — bridge pointer+count covered
Parser robustness (null/empty/long-line/malformed metadata/false banners) engine.cpp:4011 :3368-:3516 (8 cases) EngineBridgeTests:1570 (Theory, empty only) — synthetic adversarial covered (C++ deep; C# one row)

Analysis & material

Feature Where C++ C# Scripts HOW Verdict
Thermal analyzer engine.cpp:4320 :1550, perf :1755 EngineBridgeTests:650 — synthetic; score>0, gridHeatSum==score only partial — no golden thermal values
Structural analyzer engine.cpp:4650 :1570 EngineBridgeTests:650 — synthetic; score>0 only partial
Motion analyzer (junction velocity) engine.cpp:4803 only via E2E :1625 only via EngineBridgeTests:669 — no analyzer-specific unit test; inferProfileFromGcode is a stub (:4851) partial
Hole findings engine.cpp:6606 :2896 ("diameter" in message) indirect via :1468 — golden + demo gen covered
Retraction + stringing engine.cpp:6839 :2940 — — synthetic gcode covered (C++); NOT TESTED in C#
Flow + volumetric overlays engine.cpp:6923 :2915,:3541 (108B POD, cap 7.5) EngineBridgeTests:1345 — golden + synthetic + ABI covered
Material catalog (10 rows, PLA fallback, key normalize) material_catalog.cpp :3249 (11 GENERATE rows),:3276,:3286,:3310 — — unit covered (C++); NOT TESTED in C#
Inferred profile (slicer/printer/material/FLAVOR/temp fallback) engine.cpp:176 :3021,:3092,:3131,:3154,:3331 EngineBridgeTests:1129,:1204,:1261 (Theory),:1307 (Theory) — synthetic headers, both harnesses covered

Findings / overlays / viewport

Feature Where C++ C# Scripts HOW Verdict
Findings summary (16B) + detail (300B) contract engine.cpp:1513/1538 via analysis tests only EngineBridgeTests:1468 (count/row equality, id -1→InvalidArgument, past-end→NotFound),:1548; EngineSessionTests:185,:211,:233 — bridge + synthetic covered (C# owns the contract)
Per-move overlay values + supported ids engine.cpp:1550/1557/5573 :2010,:1625,:3633 EngineSessionTests:253,:261 — synthetic + ABI covered — GetSupportedOverlayIds is a hardcoded stub (engine.cpp:5579), tested as-is
Overlay stats pipeline (Min/Max/Mean/SampleCount, zero-filter) ViewportController.cs:564-640 :4065,:4107 ViewportControllerTests:460,:509 — bridge + golden + demo gen covered (controller level)
Heatmap colors (ramp/invert/vmax/null) engine.cpp:6186 :2047 EngineBridgeTests:1642-:1686 (exact (0,1,0) mid) — unit + ABI covered
Warp grid (info + risk arrays) engine.cpp:1572/1578 :1674 (size==gridW*gridH) EngineSessionTests:241 (null guard only) — ABI shape only partial — risk VALUES never content-asserted
Viewport buffers (layer buckets/offsets/extrude counts) engine.cpp:5861 :1918 EngineBridgeTests:1008 (smoke, Assert.True(true) tail) — synthetic; C# ABI smoke covered (C++); C# smoke-only
Viewport MVP + camera engine.cpp:6102/5761 :1976,:3998,:4372 ViewportControllerTests:84,:104 — synthetic + mirror covered
ProjectOrbitXY engine.cpp:5400 :2078 (11 samples, 1e6 boundary) EngineBridgeTests:1697,:1741,:1753 — golden math vs legacy oracle ±1e-4 covered
Golden render parity (SHA-256) tests/golden/g6_orbit_render.sha256 :2437 EngineBridgeTests:1772 — golden + Bresenham oracle + SHA file covered — caveat: baseline self-writes on first run; a corrupted baseline would be blessed
Viewport move ownership / D5 copy engine.cpp:5714-5741 :4164,:4275 indirect ViewportControllerTests:138 — bit-identical rebuild + sentinels covered
Viewport colors (TYPE_COLORS port) engine.cpp:5692/6152 :1895,:4427 — — unit covered (C++ only)
Value types (Vec3/Color3/BedGeometry/CameraState/Position) internal/engine_value_types.h :3949,:4351 — — unit + static_assert covered
Viewport snapshot (applySnapshot) engine.cpp:5840 :4035 — — synthetic covered (C++ only)

C# facades & UI

Feature Where C++ C# Scripts HOW Verdict
EngineSession facade (lifecycle/load/gen/analyze/findings/warp/overlay/dispose) src/Nps.EngineHost/EngineSession.cs — EngineSessionTests:48-:261 (13 tests) — bridge + golden covered — gap: Analyze only with ("PLA",210,60); no full-profile override matrix
MeshController (snapshot/reload-replace/spans) MeshController.cs — MeshControllerTests:36,:51,:91,:132 — bridge + golden covered
ViewportController (lifecycle/moves/camera/sim/overlay/warp) src/Nps.Shell/ViewportController.cs — ViewportControllerTests:31-:218 — bridge + guards covered
Camera presets + Zoom to Fit math ViewportController.cs:294-482 — ViewportControllerTests:253,:305,:376,:415,:439 (exact values) — bridge covered (math) — toolbar button wiring NOT TESTED
GcodeToolpathPainter Controls/GcodeToolpathPainter.cs — GcodeToolpathPainterTests:19,:42 (no-op guards only) — logic partial — happy-path draw (lines/colors/markers) NOT TESTED
MeshCanvasPainter Controls/MeshCanvasPainter.cs — — — — NOT TESTED
FindingsPanel (7 category chips, no search) Controls/FindingsPanel.axaml(.cs) — FindingsPanelTests:43-:248 + ShellChromeTests:209-:374 — headless; chip clicks via reflection, not pointer events covered (panel level); keyboard/a11y NOT TESTED
PlaybackPanel + timer logic Controls/PlaybackPanel.axaml(.cs); SimulatorApp MainWindow.axaml.cs:510-658 — existence only AppHeadlessSmokeTests:58,:141; math TimelineMarkerHelperTests (13 Facts) — headless existence + logic partial — scrubber press/release latch, DispatcherTimer stepping, speed→interval, auto-pause \|moveIndex-simIndex\|<2 (:645) have ZERO tests
SliceParams (Slicer VM) src/SlicerApp/SliceParams.cs — SliceParamsTests:17,:30,:49,:64 — logic covered (VM level) — ApplySliceButton chain NOT TESTED
Shell collapse + width memory MainWindowShell.axaml.cs:294-412 — AppHeadlessSmokeTests:152 (250/350 restore) — headless covered
Activity bar + panel host + tabs ActivityBarHost.cs; PanelHost.cs — ShellChromeTests:130-:188 — logic covered — per-app OnActivityTabClick handlers are dead code, untested
Keybindings (P / Ctrl+L / Left / Right — the only 4 that exist) ShellKeybindings.cs:82-113 — ShellChromeTests:50,:69,:89,:114 — logic covered
ViewportToolbar (10 code-built buttons) Controls/ViewportToolbar.cs — — — — NOT TESTED — zero tests enumerate/click its buttons
Viewport pointer gestures (drag orbit/pan) SlicerApp MainWindow.axaml.cs:560-593; SimulatorApp :661-692 — — — — NOT TESTED — math covered, event chain not
App wiring (Load+Gen+Analyze, ApplySliceButton, overlay radios incl "None"→"motion-type", layer slider, finding navigation) SlicerApp :155-318; SimulatorApp :205-314 — existence only AppHeadlessSmokeTests:58,:141 — headless existence NOT TESTED at behavior level
App boot (Program.cs, ABI gate, window load) src/SlicerApp/Program.cs; src/SimulatorApp/Program.cs — AppHeadlessSmokeTests:58,:141; EngineBridgeTests:194 (ABI==1) smoke-apps.sh (disabled, lefthook.yml:131-132) headless + bridge partial — Sim raw-ABI boot smoke only in the disabled script
StatusSink stderr dual-write StatusSink.cs:57 — status TextBlock substring only (:58/:141) _smoke_scan.py via disabled script headless (visible bar only) partial — stderr path only covered by disabled script

Errors, ABI, scripts, perf

Feature Where C++ C# Scripts HOW Verdict
Error paths: engine overall engine.cpp lastErrorMessage_ :724,:743,:816,:1240,:2700, ZIP suite :446,:465,:555,:127,:233,:1548 — synthetic/crafted covered
Error paths: UI (load-fail status, fixture-missing, no-moves, session-invalid guards) SlicerApp :157-167; SimulatorApp :207-217 — — — — NOT TESTED — no failure driven through an app handler
C ABI surface contract (POD sizes, string-out, null-handle, enum/wire-id mirrors) abi/nps_c_api.h static_asserts nps_c_api.h:215-222; tests :3633,:3541 EngineBridgeTests:230 (Theory 7 rows),:255,:279 — marshal sizeof + synthetic, both sides covered
layer-fitness gate scripts/layer-fitness.sh — — LIVE pre-push + ctest + mutation ctest structural + adversarial fixtures covered
structural-fitness gate scripts/structural-fitness.sh — — commented out (lefthook.yml:165-166) structural partial — disabled by design; mutation suite manual-only
closure-integrity scripts/closure-integrity.sh — — manual close protocol fail-closed branch tests, manual partial (manual-only)
no-placeholder-scan scripts/no-placeholder-scan.sh — — LIVE pre-push (:135-136) structural covered (gate live; no self-test)
Production Test*-export hygiene scripts/nps-n1m-12-production-gate.sh — — ctest only when BUILD_TESTING=OFF + header grep ctest nm -D scan covered — caveat: never runs in the lefthook path (always Debug+tests)
debug-mixed.sh launcher scripts/debug-mixed.sh :3843 (popen smoke) — 4 ctest syntax/content tests popen + structural covered (bash); debug-mixed.ps1 NOT TESTED
docs-deploy scripts/deploy-docs.sh — — LIVE pre-push on docs/guide/** fail-closed wrangler/zensical covered (gate live; no self-test)
Perf (parse/analyze/load/build timings) — :1755 (<5000ms),:1812 — — synthetic 20k moves + golden covered (smoke thresholds only)
FixtureLocator walk src/Nps.Shell/FixtureLocator.cs:60-90 — — fixture-present hook implicit in every bridge/golden test partial (no walk-order unit test)

Zero-coverage rows (brutally honest)

  1. ViewportToolbar — no test enumerates or clicks any of its 10 code-built buttons.
  2. Playback runtime — scrubber pointer latch, DispatcherTimer stepping, speed→interval, auto-pause rule: zero tests.
  3. App event handlers — OnLoadAnalyzeClick, OnApplySliceClick, OnOverlayModeChanged, OnLayerSliderChanged, OnFindingSelected: existence-only.
  4. Pointer-drag orbit/pan + Zoom-to-Fit button — math covered, event chain not.
  5. UI error paths — no failure ever driven through an app handler.
  6. MeshCanvasPainter + GcodeToolpathPainter happy path — only no-op guards.
  7. Warp grid risk values — ABI shape only, content never asserted.
  8. Analyzer value correctness — thermal/structural/motion scores asserted >0, never against golden expected values; motion profile inference is a stub.
  9. Retraction analyzer + MaterialCatalog C# parity, corrupt-bgcode, multi-plate fixtures, debug-mixed.ps1 — all absent.

How to run each harness

# C++ Catch2 (Debug build auto-enables NPS_ENABLE_TEST_HOOKS):
cmake -S src/Engine -B build -DCMAKE_BUILD_TYPE=Debug
cmake --build build --parallel
ctest --test-dir build --output-on-failure

# C# xUnit (build the engine first; lib must be on the loader path):
DOTNET_SYSTEM_GLOBALIZATION_INVARIANT=1 $HOME/.dotnet/dotnet test tests/NPSEngine.Tests
#   (lefthook.yml:110 — place libNPSEngine.so next to the test binary or set LD_LIBRARY_PATH)

# Script fitness gates:
./scripts/layer-fitness.sh                 # live in pre-push
./scripts/no-placeholder-scan.sh           # live in pre-push
./scripts/structural-fitness.sh            # manual (gate disabled by design)
./scripts/closure-integrity.sh <beadId>    # manual close protocol

Re-count baselines:

grep -c 'TEST_CASE(' src/Engine/tests/engine_tests.cpp        # 73 (+17 TEST_CASE_METHOD)
grep -rnE '^\s*\[Fact' tests/NPSEngine.Tests/*.cs | wc -l     # 111 (+4 [Theory])

Optional future: gcov/llvm-cov + coverlet for true % — not wired today.

Full test inventory (every name)

Mechanically extracted from the live tree (same grep the re-count one-liners use). The matrix above groups them by feature; this list is the complete checklist the refresh gate diffs against.

C++ Catch2 — all 90 TEST_CASEs (engine_tests.cpp)
  • Bead nps-f8v.5: Retraction events parsing and analysis on custom G-code — engine_tests.cpp:2940
  • Bead nps-f8v.8: Bambu comments parsing and override detection — engine_tests.cpp:3021
  • Bead nps-f8v.8: Bambu proprietary commands are tolerated without crash — engine_tests.cpp:3178
  • Bead nps-f8v.8: Malformed / boundary inputs are tolerated without crash / — engine_tests.cpp:3368
  • Bead nps-f8v.8: Malformed / boundary inputs are tolerated without crash / ; — engine_tests.cpp:3425
  • Bead nps-f8v.8: Malformed / boundary inputs are tolerated without crash / ;FLAVOR: with — engine_tests.cpp:3454
  • Bead nps-f8v.8: Malformed / boundary inputs are tolerated without crash / ParseGcode — engine_tests.cpp:3385
  • Bead nps-f8v.8: Malformed / boundary inputs are tolerated without crash / Very long — engine_tests.cpp:3401
  • Bead nps-f8v.8: Marlin + Klipper firmware detection via FLAVOR comment / Klipper flavor — engine_tests.cpp:3154
  • Bead nps-f8v.8: Marlin + Klipper firmware detection via FLAVOR comment / Marlin flavor — engine_tests.cpp:3131
  • Bead nps-f8v.8: NpsMaterialProfile POD layout is 108 bytes and round-trips via C ABI — engine_tests.cpp:3541
  • Bead nps-f8v.8: OrcaSlicer comments parsing — engine_tests.cpp:3092
  • Bead nps-f8v.8: Slicer detection rejects non-banner CURA/BAMBU substrings / Comment — engine_tests.cpp:3474
  • Bead nps-f8v.8: Slicer detection rejects non-banner CURA/BAMBU substrings / Comment — engine_tests.cpp:3495
  • Bead nps-f8v.8: Slicer detection rejects non-banner CURA/BAMBU substrings / Real banner — engine_tests.cpp:3516
  • Benchy analysis populates flow overlays — engine_tests.cpp:2915
  • Benchy analysis reports hole findings — engine_tests.cpp:2896
  • Benchy parse + viewport build timing smoke (nps-n1m.40 G16) — engine_tests.cpp:1812
  • Benchy validation exposes transformed mesh data — engine_tests.cpp:651
  • Benchy validation keeps bounds and indices consumable — engine_tests.cpp:674
  • Benchy validation loads the primary fixture — engine_tests.cpp:621
  • Benchy validation preserves golden mesh counts — engine_tests.cpp:630
  • Benchy validation preserves the four-color palette — engine_tests.cpp:638
  • Benchy validation supports metadata-only reload — engine_tests.cpp:706
  • C ABI string-output contract (nps-n1m.27): null/zero-cap no-op + UTF-8 NUL + truncation — engine_tests.cpp:3633
  • Default material profiles are parameterized by material key — engine_tests.cpp:3249
  • E2E: mesh load + synthetic gcode parse/analyze + overlay data assert (nps-f8v.11) — engine_tests.cpp:1625
  • Engine GetLastParsedGcode split semantics (nps-n1m.32) — engine_tests.cpp:1447
  • Engine LoadModelFromFile error cases for robustness (nps-l7k.14) — engine_tests.cpp:743
  • Engine LoadModelFromFile returns failure for missing file — engine_tests.cpp:724
  • Engine LoadModelFromFile wires parser via ZIP/OPC reader (nps-l7k.3) on real Benchy — engine_tests.cpp:287
  • Engine ZipArchiveReader extracts model XML + metadata on primary Benchy (nps-l7k.3) — engine_tests.cpp:339
  • Engine basic lifecycle and version — engine_tests.cpp:272
  • Engine core mesh and plate data structures + append/combine (nps-l7k.4) — engine_tests.cpp:474
  • Engine mesh prep for scalar fields & shared viewport (nps-l7k.11) — engine_tests.cpp:529
  • Engine mesh query API surface (nps-l7k.2 design) — engine_tests.cpp:374
  • Gcode bgcode basic header + optional full decode (nps-f8v.4) — engine_tests.cpp:1509
  • Gcode gen + C ABI buffer + file roundtrip (nps-f8v.10 interop) — engine_tests.cpp:2729
  • Gcode generation error cases and defaults (nps-f8v.10) — engine_tests.cpp:2700
  • Gcode generation from loaded mesh + params (nps-f8v.10 basic) — engine_tests.cpp:2538
  • Gcode generation non-planar + roundtrip validate structure (nps-f8v.10) — engine_tests.cpp:2637
  • Gcode generation real geometry and scalar fields (nps-f8v.7.1) — engine_tests.cpp:2780
  • Gcode parse + analyze roundtrip via C ABI harness hooks (integration) — engine_tests.cpp:1592
  • Gcode parse from real test_cube + roundtrip structure (nps-f8v.4 + Gcode files) — engine_tests.cpp:1410
  • Gcode parser multi-format layers + Bambu markers (nps-f8v.4) — engine_tests.cpp:1346
  • Gcode parser relative E + M82/M83 + G92 + accel M204 (nps-f8v.4) — engine_tests.cpp:1371
  • Gcode parser section types + G2/G3 arcs (nps-f8v.4) — engine_tests.cpp:1398
  • Gcode parser state machine + moves (nps-f8v.11 + f8v.9 model) — engine_tests.cpp:1290
  • LoadModelFromFile ABI forwarder rejects null engine handle (nps-n1m.32) — engine_tests.cpp:816
  • M104 metadata fallback is parameterized by hotend temperature — engine_tests.cpp:3331
  • MaterialCatalog table exposes expected entry count + PLA fallback at index 0 — engine_tests.cpp:3286
  • MaterialCatalog::forType normalizes key (case + underscore-to-dash) and falls back to PLA — engine_tests.cpp:3310
  • ModelXMLParser direct nps::Parse populates full result incl triangles — engine_tests.cpp:1224
  • ModelXMLParser handles object/component graph, unit, build items — engine_tests.cpp:1206
  • ModelXMLParser reports PARSE_ERROR on bad data (integrates .14 model) — engine_tests.cpp:1240
  • ModelXMLParser streams vertices + triangles from real 3MF sample — engine_tests.cpp:1178
  • Performance: large G-code parse + analysis time (nps-f8v.11) — engine_tests.cpp:1755
  • Primary Benchy ZIP hook extracts model and metadata — engine_tests.cpp:1102
  • Primary Benchy ZIP load preserves golden counts — engine_tests.cpp:1092
  • ProjectOrbitXY C ABI parity with previous UI math (nps-n1m.30 G6) — engine_tests.cpp:2078
  • Structural score analyzer with GcodeMove (nps-f8v.11 + f8v.9) — engine_tests.cpp:1570
  • Thermal grid analyzer math with GcodeMove (nps-f8v.11 + f8v.9) — engine_tests.cpp:1550
  • Unknown material profile falls back to PLA — engine_tests.cpp:3276
  • Viewport camera MVP + layer vis + sim offsets (nps-f8v.3) — engine_tests.cpp:1976
  • Viewport color logic matches TYPE_COLORS port (nps-f8v.3) — engine_tests.cpp:1895
  • Viewport harness integration: moves from parse + analyze feed (nps-f8v.3 + f8v.11) — engine_tests.cpp:2010
  • Viewport layer buffers + move offsets from GcodeMove (nps-f8v.3 + f8v.9) — engine_tests.cpp:1918
  • ViewportGetHeatmapColor C ABI matches GcodeViewport::GetHeatmapColor (nps-n1m.30 G6) — engine_tests.cpp:2047
  • Visual/golden render parity via engine C ABI (nps-n1m.30 G6) — engine_tests.cpp:2437
  • WarpGrid ABI + viewport render smoke (nps-f8v.6.1) — engine_tests.cpp:1674
  • Zip reader rejects a bad deflate stream — engine_tests.cpp:1032
  • Zip reader rejects a bad local header signature — engine_tests.cpp:995
  • Zip reader rejects a corrupt EOCD — engine_tests.cpp:965
  • Zip reader rejects a truncated archive — engine_tests.cpp:982
  • Zip reader rejects null arguments — engine_tests.cpp:1084
  • Zip reader rejects stored-size mismatches — engine_tests.cpp:1067
  • Zip reader rejects unsupported compression — engine_tests.cpp:1014
  • Zip reader reports a missing entry — engine_tests.cpp:1056
  • nps-580 scripts/debug-mixed.sh --help and print-modes — engine_tests.cpp:3843
  • nps-n1m.18 D5: Viewport SetGcodeMoves copies (engine buffer mutation after Set does not — engine_tests.cpp:4275
  • nps-n1m.18 D5: Viewport survives engine Load/Parse after SetGcodeMoves (no UAF) — engine_tests.cpp:4164
  • nps-n1m.41 G17: ApplyOverlay(OverlayState) collapses the three-setter sequence — engine_tests.cpp:4065
  • nps-n1m.41 G17: GetExtrudeColorForType Color3* overload matches float[3] overload — engine_tests.cpp:4427
  • nps-n1m.41 G17: GetMeshBounds Position* overload matches float[3] overload — engine_tests.cpp:4390
  • nps-n1m.41 G17: Mat4LookAt now takes three Vec3 — engine_tests.cpp:4372
  • nps-n1m.41 G17: Position alias exists and is a Vec3 — engine_tests.cpp:4351
  • nps-n1m.41 G17: SetCamera(CameraState) overload forwards all five floats — engine_tests.cpp:3998
  • nps-n1m.41 G17: Vec3/Color3/BedGeometry/CameraState aggregate value types — engine_tests.cpp:3949
  • nps-n1m.41 G17: ViewportApplyOverlay C ABI aggregate equals three-setter sequence — engine_tests.cpp:4107
  • nps-n1m.41 G17: applySnapshot(EngineSnapshot) feeds moves to viewport — engine_tests.cpp:4035
C# xUnit — all 115 Facts/Theories (tests/NPSEngine.Tests)
  • MainWindowShell_Collapse_Width_Memory_Smoke — AppHeadlessSmokeTests.cs:150
  • SimulatorApp_MainWindow_Loads_Layout_And_Bindings — AppHeadlessSmokeTests.cs:139
  • SlicerApp_MainWindow_Loads_Layout_And_Bindings — AppHeadlessSmokeTests.cs:57
  • AbiPODLayout_Frozen — EngineBridgeTests.cs:227
  • CreateInitializeVersionDestroy_Works — EngineBridgeTests.cs:167
  • E2E_MeshLoadPlusGcodeAnalyze_AssertsOverlays — EngineBridgeTests.cs:667
  • EnumMirrors_MatchFrozenAbiInts — EngineBridgeTests.cs:254
  • GcodeGenerate_RoundtripAndNonplanar_Validates — EngineBridgeTests.cs:742
  • GcodeParse_RoundtripViaTestHook_Works — EngineBridgeTests.cs:634
  • GetAbiVersion_MatchesExpectedAtStartup — EngineBridgeTests.cs:193
  • GetLastParsedGcode_SplitSemantics_RoundTripViaCAbi — EngineBridgeTests.cs:922
  • LoadModelFromFile_ErrorCasesAndOptions_Robustness — EngineBridgeTests.cs:463
  • LoadModelFromFile_MissingFile_ReturnsSpecificErrorAndMessage — EngineBridgeTests.cs:444
  • LoadModelFromFile_NullEngineHandle_ReturnsInvalidArgument — EngineBridgeTests.cs:554
  • LoadModelFromFile_OnBenchy3Mf_SucceedsWithAssertion — EngineBridgeTests.cs:290
  • Loader_IntegratesViaEngineHost_Succeeds — EngineBridgeTests.cs:600
  • ParseBgcode_RealTestCubeBinary_FullRoundtripAssertsMovesAndLayers — EngineBridgeTests.cs:821
  • ProjectOrbitXY_IdentityRotation_ZContributesToScreenXY — EngineBridgeTests.cs:1739
  • ProjectOrbitXY_MatchesLegacyUiMath — EngineBridgeTests.cs:1695
  • ProjectOrbitXY_NullOutIsNoop — EngineBridgeTests.cs:1751
  • TestAnalysisFindingsSummary_BeforeAnalyze_ReportsNoData — EngineBridgeTests.cs:1547
  • TestAnalysisFindingsSummary_RoundTripsThroughDetail — EngineBridgeTests.cs:1467
  • TestInferredMaterialTemperatureFallback — EngineBridgeTests.cs:1302
  • TestInferredPropertiesFromGcode — EngineBridgeTests.cs:1127
  • TestInferredSlicerFlavor — EngineBridgeTests.cs:1257
  • TestInferredSlicerOrcaSlicer — EngineBridgeTests.cs:1203
  • TestMaterialProfilePODRoundTrip — EngineBridgeTests.cs:1344
  • TestParseGcodeMalformedInputs — EngineBridgeTests.cs:1568
  • ThermalAndStructural_AnalyzerInterop_ReturnsData — EngineBridgeTests.cs:648
  • ViewportGetHeatmapColor_InvertFlipsRamp — EngineBridgeTests.cs:1659
  • ViewportGetHeatmapColor_MidValue_IsGreen — EngineBridgeTests.cs:1640
  • ViewportGetHeatmapColor_NullOutIsNoop — EngineBridgeTests.cs:1684
  • ViewportGetHeatmapColor_VmaxMapsToRedEnd — EngineBridgeTests.cs:1673
  • ViewportMeshRender_BenchyFixture_Validates — EngineBridgeTests.cs:1057
  • ViewportRenderLogic_Smoke_BridgeCalls_NoCrash — EngineBridgeTests.cs:1007
  • VisualGolden_RenderOrbit_BytesMatchCppBaseline — EngineBridgeTests.cs:1771
  • WireIdMirrors_MatchFrozenAbiIds — EngineBridgeTests.cs:278
  • CreateAndInitialize_ProducesValidSession — EngineSessionTests.cs:47
  • Dispose_MakesSessionInvalid — EngineSessionTests.cs:58
  • Dispose_Twice_IsIdempotent — EngineSessionTests.cs:67
  • Findings_AreEmptyBeforeAnalyze_AndPopulatedAfter — EngineSessionTests.cs:183
  • GenerateDemoToolpath_AfterBenchyLoad_ReturnsMoves — EngineSessionTests.cs:164
  • GetFindingDetail_ReturnsFullRecordForKnownId — EngineSessionTests.cs:209
  • GetFindingDetail_StaleId_ReturnsNull — EngineSessionTests.cs:231
  • GetOverlayValue_BeforeLoad_ReturnsZero — EngineSessionTests.cs:259
  • GetOverlayValue_ThrowsAfterDispose — EngineSessionTests.cs:251
  • GetWarpGrid_BeforeAnalyze_ReturnsNull — EngineSessionTests.cs:239
  • LoadModel_ClearsPriorMoveBuffer — EngineSessionTests.cs:140
  • LoadModel_MissingFile_ReturnsFailureWithMessage — EngineSessionTests.cs:125
  • LoadModel_OnBenchy3Mf_ReturnsStructuredPlatesAndPalette — EngineSessionTests.cs:93
  • FindingsPanel_AllChip_RestoresBothAxes — FindingsPanelTests.cs:154
  • FindingsPanel_CategoryFilter_AlsoUnchecksAll — FindingsPanelTests.cs:128
  • FindingsPanel_DefaultChips_AllChecked — FindingsPanelTests.cs:42
  • FindingsPanel_Selection_RaisesFindingSelected_WithItem — FindingsPanelTests.cs:187
  • FindingsPanel_SetFindings_RebuildsItemsSource_And_Count — FindingsPanelTests.cs:71
  • FindingsPanel_SeverityFilter_ShrinksVisibleCount — FindingsPanelTests.cs:92
  • FindingsPanel_TryGetCachedItem_ReturnsNull_ForUnknownFindingId — FindingsPanelTests.cs:246
  • FindingsPanel_UpdateDetail_PopulatesStyledProperties — FindingsPanelTests.cs:216
  • RenderTo_FreshViewport_ZeroMoves_IsNoOp — GcodeToolpathPainterTests.cs:40
  • RenderTo_NullViewport_IsNoOp — GcodeToolpathPainterTests.cs:18
  • Constructor_BeforeReload_HasZeroPlatesAndEmptyPalette — MeshControllerTests.cs:35
  • PlateMesh_EmptyArrays_ReportZeroCountsAndEmptySpans — MeshControllerTests.cs:130
  • Reload_AfterSecondLoad_ReplacesSnapshotInPlace — MeshControllerTests.cs:89
  • Reload_OnBenchy_SnapshotsOnePlateWithGoldenCounts — MeshControllerTests.cs:49
  • ActivityBarHost_FiresTabClicked_ForRegisteredKey — ShellChromeTests.cs:145
  • ActivityBarHost_NoTabClicked_When_Button_Tag_Unregistered — ShellChromeTests.cs:129
  • FindingFormatter_CategoryLabel_And_Brush_For_All_Known_Categories — ShellChromeTests.cs:243
  • FindingFormatter_FromSummaryAndDetail_Stamps_Category_From_Detail — ShellChromeTests.cs:333
  • FindingItem_DefaultShape_Mirrors_Api_Contract — ShellChromeTests.cs:208
  • FindingsFilterState_Default_Matches_All_Rows — ShellChromeTests.cs:288
  • PanelHost_Show_FlipsExactlyOneVisible_And_FiresOnShown — ShellChromeTests.cs:163
  • PanelHost_Show_UnknownKey_NoOp_NoOnShown — ShellChromeTests.cs:187
  • SeverityPalette_Resolves_Fallback_Brushes — ShellChromeTests.cs:373
  • ShellKeybindings_Left_Right_Step_And_Handle — ShellChromeTests.cs:88
  • ShellKeybindings_Mod_L_TogglesInspector_Only_With_Ctrl — ShellChromeTests.cs:68
  • ShellKeybindings_P_TogglesPlay_And_Handles — ShellChromeTests.cs:49
  • ShellKeybindings_Unhandled_Key_FallsThrough — ShellChromeTests.cs:113
  • CreateDefaults_Matches_HardCoded_Demo_Toolpath_Options — SliceParamsTests.cs:16
  • PropertyChanged_Does_Not_Fire_On_Same_Value — SliceParamsTests.cs:62
  • PropertyChanged_Fires_On_Mutation — SliceParamsTests.cs:47
  • ToGcodeGenOptions_Reflects_Mutated_Fields — SliceParamsTests.cs:28
  • BuildMarkers_EmptyFindings_ReturnsEmpty — TimelineMarkerHelperTests.cs:108
  • BuildMarkers_EmptyTimeline_ReturnsEmpty — TimelineMarkerHelperTests.cs:116
  • BuildMarkers_ExcludesMoveIndexMinusOne — TimelineMarkerHelperTests.cs:136
  • BuildMarkers_NullFindings_ReturnsEmpty — TimelineMarkerHelperTests.cs:100
  • BuildMarkers_PreservesInputOrder — TimelineMarkerHelperTests.cs:182
  • BuildMarkers_ProjectOffsetsAcrossFullTimeline — TimelineMarkerHelperTests.cs:161
  • Fraction_EmptyTimeline_ReturnsZero — TimelineMarkerHelperTests.cs:62
  • Fraction_FirstMove_ReturnsZero — TimelineMarkerHelperTests.cs:40
  • Fraction_LastMove_ReturnsOne — TimelineMarkerHelperTests.cs:46
  • Fraction_Midpoint_ReturnsHalf — TimelineMarkerHelperTests.cs:54
  • Fraction_MoveBeyondEnd_ClampsToOne — TimelineMarkerHelperTests.cs:88
  • Fraction_NegativeMoveIndex_ClampsToZero — TimelineMarkerHelperTests.cs:80
  • Fraction_SingleMove_ReturnsZero — TimelineMarkerHelperTests.cs:72
  • ApplyOverlay_FromSession_ComputesStatsAndAppliesOverlay — ViewportControllerTests.cs:458
  • ApplyOverlay_MirrorsMode_AndDoesNotThrow — ViewportControllerTests.cs:166
  • ApplyOverlay_NonThermal_LastOverlayMeanMatchesStatsMeanAndSampleCountExcludesZeros — ViewportControllerTests.cs:507
  • ApplyOverlay_NullValues_Throws — ViewportControllerTests.cs:194
  • BuildBuffers_IsCallableAndDoesNotThrow — ViewportControllerTests.cs:126
  • CameraPresets_ProduceNonCollapsedProjectedBoundsAndDistinctOrientations — ViewportControllerTests.cs:303
  • ComputeZoomFit_ReturnsPlacingContentAtApproximately90PercentFill — ViewportControllerTests.cs:413
  • ComputeZoomFit_WithMoves_ReturnsExpectedZoomAndPan — ViewportControllerTests.cs:374
  • ComputeZoomFit_WithNonSquareViewportAndContent_ReturnsExpectedZoomAndFill — ViewportControllerTests.cs:437
  • CreateAndInitialize_ProducesValidViewport — ViewportControllerTests.cs:30
  • Dispose_MakesViewportInvalid — ViewportControllerTests.cs:39
  • Dispose_Twice_IsIdempotent — ViewportControllerTests.cs:48
  • MovesSpan_EmptyBeforeSetMoves — ViewportControllerTests.cs:209
  • MovesSpan_ReflectsSetMovesCount — ViewportControllerTests.cs:216
  • SetCameraPreset_UpdatesCameraRotationAndZeroPan — ViewportControllerTests.cs:251
  • SetCamera_FiveArgOverload_MirrorsCameraState — ViewportControllerTests.cs:102
  • SetCamera_RecordOverload_MirrorsCameraState — ViewportControllerTests.cs:82
  • SetLayerVisibility_MirrorsMaxLayer — ViewportControllerTests.cs:74
  • SetMoves_MirrorsCountAndPointer — ViewportControllerTests.cs:136
  • SetSimulationState_MirrorsSimMoveIndex — ViewportControllerTests.cs:118
  • SetWarpParams_DoesNotThrow — ViewportControllerTests.cs:201

See also

  • quality-gates.md — lefthook/ctest wiring for every gate named here
  • overview.md — golden fixture in the architecture context
  • c-abi.md — the ABI surface the bridge tests pin