| Line | Branch | Decision | Exec | Source |
|---|---|---|---|---|
| 1 | #include "pch.h" | |||
| 2 | #include "vehicle_speed_converter.h" | |||
| 3 | ||||
| 4 | ||||
| 5 | 8 | float GetVssFor(float revPerKm, float axle, float teeth, float hz) { | ||
| 6 |
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8 | EngineTestHelper eth(engine_type_e::TEST_ENGINE); | |
| 7 | ||||
| 8 | 8 | VehicleSpeedConverter dut; | ||
| 9 | ||||
| 10 | 8 | engineConfiguration->driveWheelRevPerKm = revPerKm; | ||
| 11 | 8 | engineConfiguration->vssGearRatio = axle; | ||
| 12 | 8 | engineConfiguration->vssToothCount = teeth; | ||
| 13 | ||||
| 14 |
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16 | return dut.convert(hz).value_or(-1); | |
| 15 | 8 | } | ||
| 16 | ||||
| 17 | 4 | TEST(VehicleSpeed, FakeCases) { | ||
| 18 | // 0hz -> 0kph | |||
| 19 |
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1 | EXPECT_NEAR_M3(0, GetVssFor(500, 5, 10, 0)); | |
| 20 | ||||
| 21 | // 1000hz -> 144 kph | |||
| 22 |
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1 | EXPECT_NEAR_M3(144, GetVssFor(500, 5, 10, 1000)); | |
| 23 | ||||
| 24 | // Half size tires -> half speed | |||
| 25 |
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1 | EXPECT_NEAR_M3(72, GetVssFor(1000, 5, 10, 1000)); | |
| 26 | ||||
| 27 | // Double the axle ratio -> half the speed | |||
| 28 |
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1 | EXPECT_NEAR_M3(72, GetVssFor(500, 10, 10, 1000)); | |
| 29 | ||||
| 30 | // Twice as many teeth -> half speed | |||
| 31 |
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1 | EXPECT_NEAR_M3(72, GetVssFor(500, 5, 20, 1000)); | |
| 32 | 1 | } | ||
| 33 | ||||
| 34 | 4 | TEST(VehicleSpeed, RealCases) { | ||
| 35 | // V8 Volvo | |||
| 36 | // 205/50R16 tire -> 521 rev/km | |||
| 37 | // 3.73 axle ratio | |||
| 38 | // 17 tooth speedo gear | |||
| 39 |
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1 | EXPECT_NEAR_M3(108.970f, GetVssFor(521, 3.73, 17, 1000)); | |
| 40 | ||||
| 41 | // NB miata | |||
| 42 | // 205/50R15 tire -> 544 rev/km | |||
| 43 | // 4.3 axle ratio | |||
| 44 | // 21 tooth speedo gear | |||
| 45 |
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1 | EXPECT_NEAR_M3(73.285f, GetVssFor(544, 4.3, 21, 1000)); | |
| 46 | ||||
| 47 | // Some truck with ABS sensors | |||
| 48 | // 265/65R18 tire -> 391 rev/km | |||
| 49 | // 1.0 ratio because ABS sensors are hub mounted | |||
| 50 | // 48 tooth abs sensor | |||
| 51 |
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1 | EXPECT_NEAR_M3(191.816f, GetVssFor(391, 1, 48, 1000)); | |
| 52 | 1 | } | ||
| 53 |