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eu07_unit_tests: C++ tests (doctest) of the simulation, which set up the
conditions, run the code and check the outcome. No game data, no window.
- the code under test is the core library (eu07_core), the very objects
the game links, built with the game's settings; engine_stubs.cpp stands
in for the logs, settings and scenery layers the library reaches for.
python gets linked with the settings but isn't needed to run the tests
- test vehicles are JSON definitions in tests/unit/data, with the sections
and keys of the game's vehicle definitions (tables as "rows", _keys are
comments), changed by the tests where needed and loaded from memory by
the game's own loader; an unknown section is an error rather than
silently skipped
- test::vehicle creates the mover the way TDynamicObject::Init() does and
steps it the way the simulation loop does, on a straight track of given
friction and gradient, optionally holding the brake pipe pressure the
way a coupled locomotive would
- the random numbers of the simulation are reseeded before every test
case, so a test gives the same result alone (IDE) or among the others
- building the game runs the tests at the end, once the game is linked,
and prints a one line summary ("Unit tests: 11/11 passed (80 checks)").
A failure prints the full report and fails the build, in CI and locally
alike, and removes the game binary so the next build reruns them. A
change of the tests alone relinks the game so they run (Ninja and
Makefile generators). -DWITH_TESTS=OFF leaves them out
- first tests: definitions reach the vehicle, KE service application and
release, deeper reduction brakes harder, every implemented distributor
valve charges/applies/releases, service braking stops a moving wagon
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
13 lines
927 B
JSON
13 lines
927 B
JSON
{
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"_comment": "Passenger wagon with a KE distributor valve, made after a real one so the defaults make physical sense. Sections and keys are those of the game's vehicle definitions; tests change only the keys they're about.",
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"Param": { "Category": "train", "M": 42200, "Vmax": 120 },
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"Dimensions": { "L": 26.8, "H": 4.7, "W": 2.88, "Cx": 0.15 },
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"Wheels": { "D": 0.96, "Tw": 1.435, "Axle": "2'2'", "Ad": 2.5, "Bd": 19.5, "Rmin": 80, "BearingType": "Roll" },
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"Brake": {
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"BrakeValve": "KE", "NBpA": 6, "MBF": 15, "MaxBP": 3.8, "TareMaxBP": 2.3,
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"BCN": 12, "BCR": 0.127, "BCD": 0.04, "BCM": 1.5, "BCS": 1.2, "BSA": 0, "BM": "Disk1", "BVV": 125
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},
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"BuffCoupl": { "CType": "Screw", "kB": 9200, "DmaxB": 0.11, "FmaxB": 320, "kC": 4500, "DmaxC": 0.1, "FmaxC": 850, "beta": 0.58, "AllowedFlag": 115 },
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"Cntrl": { "BrakeSystem": "Pneumatic", "LocalBrake": "ManualBrake", "BrakeDelays": "P", "MaxBPMass": 63 }
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}
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