unit_tests/tests/ignition_injection/test_fuel_wall_wetting.cpp

Directory:	./
File:	unit_tests/tests/ignition_injection/test_fuel_wall_wetting.cpp
Date:	2025-10-24 14:26:41

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Functions:	100.0%	12	0	12
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Decisions:	100.0%	8	-	8

  
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      /*
    
       * @file test_fuel_wall_wetting.cpp
    
       *
    
       * See also test_accel_enrichment.cpp
    
       *
    
       * @date Oct 16, 2019
    
       * @author Andrey Belomutskiy, (c) 2012-2020
    
       */
    
      #include "pch.h"
    
      struct MockWallController : public IWallFuelController {
    
      111
      	MOCK_METHOD(bool, getEnable, (), (const, override));
    
      111
      	MOCK_METHOD(float, getAlpha, (), (const, override));
    
      111
      	MOCK_METHOD(float, getBeta, (), (const, override));
    
      };
    
      4
      TEST(fuel, testWallWettingEnrichmentMath) {
    
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      1
      	EngineTestHelper eth(engine_type_e::TEST_ENGINE);
    
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      1
      	MockWallController wallController;
    
      	// WW is enabled!
    
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      	EXPECT_CALL(wallController, getEnable()).WillRepeatedly(Return(true));
    
      	// 1/2 of fuel remains on walls
    
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      1
      	EXPECT_CALL(wallController, getAlpha()).WillRepeatedly(Return(0.5f));
    
      	// 1/4 of fuel is lands on walls
    
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      1
      	EXPECT_CALL(wallController, getBeta()).WillRepeatedly(Return(0.25f));
    
      	// install our mock in to the engine
    
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      1
      	engine->engineModules.get<WallFuelController>().set(&wallController);
    
      1
      	WallFuel wallFuel;
    
      	// each invocation of 'adjust' changes WallWetting internal state
    
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      	EXPECT_NEAR(1.3333, wallFuel.adjust(1), EPS4D);
    
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      	EXPECT_NEAR(1.1111, wallFuel.adjust(1), EPS4D);
    
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      	EXPECT_NEAR(1.0370, wallFuel.adjust(1), EPS4D);
    
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      	EXPECT_NEAR(1.0123, wallFuel.adjust(1), EPS4D);
    
      	// get to steady state
    
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      51
      	for (size_t i = 0; i < 50; i++) {
    
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      50
      		wallFuel.adjust(1);
    
      	}
    
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      	EXPECT_NEAR(1, wallFuel.adjust(1), EPS4D);
    
      	// now run half the fuel
    
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      	EXPECT_NEAR(0.3333, wallFuel.adjust(0.5), EPS4D);
    
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      	EXPECT_NEAR(0.4444, wallFuel.adjust(0.5), EPS4D);
    
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      	EXPECT_NEAR(0.4815, wallFuel.adjust(0.5), EPS4D);
    
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      	EXPECT_NEAR(0.4938, wallFuel.adjust(0.5), EPS4D);
    
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      	for (size_t i = 0; i < 50; i++) {
    
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      		wallFuel.adjust(0.5);
    
      	}
    
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      	EXPECT_NEAR(0.5, wallFuel.adjust(0.5), EPS4D);
    
      2
      }
    
      4
      TEST(fuel, testWallWettingEnrichmentScheduling) {
    
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      	EngineTestHelper eth(engine_type_e::TEST_ENGINE);
    
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      	engineConfiguration->isFasterEngineSpinUpEnabled = false;
    
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      	setCrankOperationMode();
    
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      	eth.setTriggerType(trigger_type_e::TT_HALF_MOON);
    
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      	eth.fireTriggerEvents2(/* count */ 4, 25 /* ms */);
    
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      	ASSERT_EQ( 1200,  Sensor::getOrZero(SensorType::Rpm)) << "RPM";
    
      1
      	int expectedInvocationCounter = 1;
    
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      	for	(int i = 0; i < 4; i++) {
    
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      		ASSERT_EQ(expectedInvocationCounter, engine->injectionEvents.elements[i].getWallFuel().invocationCounter);
    
      	}
    
      	// Cylinder 5 doesn't exist - shouldn't have been called!
    
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      	ASSERT_EQ(0, engine->injectionEvents.elements[5].getWallFuel().invocationCounter);
    
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      	eth.engine.periodicFastCallback();
    
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      	eth.engine.periodicFastCallback();
    
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      	eth.engine.periodicFastCallback();
    
      	// still same 1 per cylinder - wall wetting is NOT invoked from 'periodicFastCallback'
    
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      	for	(int i = 0; i < 4; i++) {
    
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      		ASSERT_EQ(expectedInvocationCounter, engine->injectionEvents.elements[i].getWallFuel().invocationCounter);
    
      	}
    
      	// Cylinder 5 doesn't exist - shouldn't have been called!
    
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      	ASSERT_EQ(0, engine->injectionEvents.elements[5].getWallFuel().invocationCounter);
    
      1
      }

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1				/*
2				* @file test_fuel_wall_wetting.cpp
3				*
4				* See also test_accel_enrichment.cpp
5				*
6				* @date Oct 16, 2019
7				* @author Andrey Belomutskiy, (c) 2012-2020
8				*/
9
10				#include "pch.h"
11
12				struct MockWallController : public IWallFuelController {
13			111	MOCK_METHOD(bool, getEnable, (), (const, override));
14			111	MOCK_METHOD(float, getAlpha, (), (const, override));
15			111	MOCK_METHOD(float, getBeta, (), (const, override));
16				};
17
18			4	TEST(fuel, testWallWettingEnrichmentMath) {
19	1/1 ✓ Branch 2 taken 1 time.		1	EngineTestHelper eth(engine_type_e::TEST_ENGINE);
20
21	1/1 ✓ Branch 2 taken 1 time.		1	MockWallController wallController;
22
23				// WW is enabled!
24	6/6 ✓ Branch 2 taken 1 time. ✓ Branch 6 taken 1 time. ✓ Branch 10 taken 1 time. ✓ Branch 15 taken 1 time. ✓ Branch 18 taken 1 time. ✓ Branch 21 taken 1 time.		1	EXPECT_CALL(wallController, getEnable()).WillRepeatedly(Return(true));
25
26				// 1/2 of fuel remains on walls
27	6/6 ✓ Branch 2 taken 1 time. ✓ Branch 6 taken 1 time. ✓ Branch 10 taken 1 time. ✓ Branch 15 taken 1 time. ✓ Branch 18 taken 1 time. ✓ Branch 21 taken 1 time.		1	EXPECT_CALL(wallController, getAlpha()).WillRepeatedly(Return(0.5f));
28
29				// 1/4 of fuel is lands on walls
30	6/6 ✓ Branch 2 taken 1 time. ✓ Branch 6 taken 1 time. ✓ Branch 10 taken 1 time. ✓ Branch 15 taken 1 time. ✓ Branch 18 taken 1 time. ✓ Branch 21 taken 1 time.		1	EXPECT_CALL(wallController, getBeta()).WillRepeatedly(Return(0.25f));
31
32				// install our mock in to the engine
33	1/1 ✓ Branch 1 taken 1 time.		1	engine->engineModules.get<WallFuelController>().set(&wallController);
34
35			1	WallFuel wallFuel;
36
37				// each invocation of 'adjust' changes WallWetting internal state
38	3/7 ✓ Branch 2 taken 1 time. ✓ Branch 5 taken 1 time. ✗ Branch 8 not taken. ✓ Branch 9 taken 1 time. ✗ Branch 12 not taken. ✗ Branch 17 not taken. ✗ Branch 20 not taken.		1	EXPECT_NEAR(1.3333, wallFuel.adjust(1), EPS4D);
39	3/7 ✓ Branch 2 taken 1 time. ✓ Branch 5 taken 1 time. ✗ Branch 8 not taken. ✓ Branch 9 taken 1 time. ✗ Branch 12 not taken. ✗ Branch 17 not taken. ✗ Branch 20 not taken.		1	EXPECT_NEAR(1.1111, wallFuel.adjust(1), EPS4D);
40	3/7 ✓ Branch 2 taken 1 time. ✓ Branch 5 taken 1 time. ✗ Branch 8 not taken. ✓ Branch 9 taken 1 time. ✗ Branch 12 not taken. ✗ Branch 17 not taken. ✗ Branch 20 not taken.		1	EXPECT_NEAR(1.0370, wallFuel.adjust(1), EPS4D);
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42
43				// get to steady state
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45	1/1 ✓ Branch 1 taken 50 times.		50	wallFuel.adjust(1);
46				}
47
48	3/7 ✓ Branch 2 taken 1 time. ✓ Branch 5 taken 1 time. ✗ Branch 8 not taken. ✓ Branch 9 taken 1 time. ✗ Branch 12 not taken. ✗ Branch 17 not taken. ✗ Branch 20 not taken.		1	EXPECT_NEAR(1, wallFuel.adjust(1), EPS4D);
49
50				// now run half the fuel
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55
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57	1/1 ✓ Branch 1 taken 50 times.		50	wallFuel.adjust(0.5);
58				}
59
60	3/7 ✓ Branch 2 taken 1 time. ✓ Branch 5 taken 1 time. ✗ Branch 8 not taken. ✓ Branch 9 taken 1 time. ✗ Branch 12 not taken. ✗ Branch 17 not taken. ✗ Branch 20 not taken.		1	EXPECT_NEAR(0.5, wallFuel.adjust(0.5), EPS4D);
61			2	}
62
63			4	TEST(fuel, testWallWettingEnrichmentScheduling) {
64
65	1/1 ✓ Branch 2 taken 1 time.		1	EngineTestHelper eth(engine_type_e::TEST_ENGINE);
66			1	engineConfiguration->isFasterEngineSpinUpEnabled = false;
67
68	1/1 ✓ Branch 1 taken 1 time.		1	setCrankOperationMode();
69
70	1/1 ✓ Branch 1 taken 1 time.		1	eth.setTriggerType(trigger_type_e::TT_HALF_MOON);
71
72
73	1/1 ✓ Branch 1 taken 1 time.		1	eth.fireTriggerEvents2(/* count / 4, 25 / ms */);
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75
76			1	int expectedInvocationCounter = 1;
77
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80				}
81
82				// Cylinder 5 doesn't exist - shouldn't have been called!
83	4/9 ✓ Branch 2 taken 1 time. ✓ Branch 6 taken 1 time. ✗ Branch 10 not taken. ✓ Branch 11 taken 1 time. ✗ Branch 14 not taken. ✗ Branch 19 not taken. ✗ Branch 22 not taken. ✓ Branch 29 taken 1 time. ✗ Branch 30 not taken.		1	ASSERT_EQ(0, engine->injectionEvents.elements[5].getWallFuel().invocationCounter);
84
85	1/1 ✓ Branch 1 taken 1 time.		1	eth.engine.periodicFastCallback();
86	1/1 ✓ Branch 1 taken 1 time.		1	eth.engine.periodicFastCallback();
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88
89				// still same 1 per cylinder - wall wetting is NOT invoked from 'periodicFastCallback'
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92				}
93
94				// Cylinder 5 doesn't exist - shouldn't have been called!
95	4/9 ✓ Branch 2 taken 1 time. ✓ Branch 6 taken 1 time. ✗ Branch 10 not taken. ✓ Branch 11 taken 1 time. ✗ Branch 14 not taken. ✗ Branch 19 not taken. ✗ Branch 22 not taken. ✓ Branch 29 taken 1 time. ✗ Branch 30 not taken.		1	ASSERT_EQ(0, engine->injectionEvents.elements[5].getWallFuel().invocationCounter);
96			1	}
97