GCC Code Coverage Report

Directory: ./
File: unit_tests/tests/sensor/test_fuel_level_func.cpp
Date: 2025-11-16 14:52:24
Coverage Exec Excl Total
Lines: 100.0% 68 0 68
Functions: 100.0% 12 0 12
Branches: 45.0% 45 0 100
Decisions: 100.0% 4 - 4
Line Branch Decision Exec Source
1 //
2 // Created by kifir on 12/19/24.
3 //
4
5 #include "pch.h"
6
7 #include "util/test_base.h"
8
9 #include "fuel_level_func.h"
10
11 namespace {
12 constexpr float calculateNextFilteredValue(float currentFilteredValue, float newValue, float alpha) {
13 return currentFilteredValue + (newValue - currentFilteredValue) * alpha;
14 }
15
16 class FuelLevelFuncTest: public TestBase<> {
17 protected:
18 static constexpr float TEST_FUEL_LEVEL_UPDATE_PERIOD_SEC = 0.932f;
19 static constexpr float TEST_FUEL_LEVEL_UPDATE_PERIOD_USEC = static_cast<int>(
20 TEST_FUEL_LEVEL_UPDATE_PERIOD_SEC * 1000000.0f
21 );
22 static constexpr float TEST_FUEL_LEVEL_ALPHA = 0.17f;
23 static constexpr float TEST_FUEL_LEVEL_LOW_THRESHOLD_VOLTAGE = 0.01f;
24 static constexpr float TEST_FUEL_LEVEL_HIGH_THRESHOLD_VOLTAGE = 100.0f;
25
26 static constexpr uint8_t TEST_DEFAULT_FUEL_LEVEL = 12;
27
28 static constexpr float INPUT_VALUE_0 = 51.932f;
29 static constexpr float EXPECTED_FILTERED_VALUE_0 = INPUT_VALUE_0;
30 static constexpr uint8_t EXPECTED_FUEL_LEVEL_0 = 89;
31
32 static constexpr float INPUT_VALUE_1 = 1.932f;
33 static constexpr float EXPECTED_FILTERED_VALUE_1 =
34 calculateNextFilteredValue(EXPECTED_FILTERED_VALUE_0, INPUT_VALUE_1, TEST_FUEL_LEVEL_ALPHA);
35 static constexpr uint8_t EXPECTED_FUEL_LEVEL_1 = 78;
36
37 static constexpr float INPUT_VALUE_2 = INPUT_VALUE_1;
38 static constexpr float EXPECTED_FILTERED_VALUE_2 =
39 calculateNextFilteredValue(EXPECTED_FILTERED_VALUE_1, INPUT_VALUE_2, TEST_FUEL_LEVEL_ALPHA);
40 static constexpr uint8_t EXPECTED_FUEL_LEVEL_2 = 67;
41
42 static const FuelLevelBinsCurve TEST_FUEL_LEVEL_BINS;
43 static const FuelLevelValuesCurve TEST_FUEL_LEVEL_VALUES;
44
45 void SetUp() override;
46
47 float convert(float newValue);
48 UnexpectedCode invalidConvert(float newValue);
49
50 void checkThatNewValueIsIgnoredDuringUpdatePeriod(float previousValue);
51 private:
52 static FuelLevelBinsCurve getTestFuelLevelBins();
53 static FuelLevelValuesCurve getTestFuelLevelValues();
54 std::unique_ptr<FuelLevelFunc> m_fuelLevelFunc;
55 };
56
57 const FuelLevelBinsCurve FuelLevelFuncTest::TEST_FUEL_LEVEL_BINS = FuelLevelFuncTest::getTestFuelLevelBins();
58 const FuelLevelValuesCurve FuelLevelFuncTest::TEST_FUEL_LEVEL_VALUES = FuelLevelFuncTest::getTestFuelLevelValues();
59
60 2 void FuelLevelFuncTest::SetUp() {
61 2 TestBase::SetUp();
62
63
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 6 setUpEngineConfiguration(EngineConfig()
64
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 6 .setFuelLevelUpdatePeriodSec(TEST_FUEL_LEVEL_UPDATE_PERIOD_SEC)
65
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 8 .setFuelLevelAveragingAlpha(TEST_FUEL_LEVEL_ALPHA)
66
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 8 .setFuelLevelLowThresholdVoltage(TEST_FUEL_LEVEL_LOW_THRESHOLD_VOLTAGE)
67
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 8 .setFuelLevelHighThresholdVoltage(TEST_FUEL_LEVEL_HIGH_THRESHOLD_VOLTAGE)
68 );
69
70 2 getTestPersistentConfiguration().setFuelLevelBinsCurve(TEST_FUEL_LEVEL_BINS);
71 2 getTestPersistentConfiguration().setFuelLevelValuesCurve(TEST_FUEL_LEVEL_VALUES);
72
73
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 2 m_fuelLevelFunc = std::make_unique<FuelLevelFunc>();
74 2 }
75
76 12 float FuelLevelFuncTest::convert(const float newValue) {
77
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 12 const SensorResult result = m_fuelLevelFunc->convert(newValue);
78
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 12 EXPECT_TRUE(result.Valid);
79 12 return result.Value;
80 }
81
82 2 UnexpectedCode FuelLevelFuncTest::invalidConvert(const float newValue) {
83 2 const SensorResult result = m_fuelLevelFunc->convert(newValue);
84
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 2 EXPECT_FALSE(result.Valid);
85 2 return result.Code;
86 }
87
88 3 void FuelLevelFuncTest::checkThatNewValueIsIgnoredDuringUpdatePeriod(const float previousValue) {
89 3 advanceTimeUs(1);
90
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 3 EXPECT_EQ(convert(99.9f), previousValue);
91
92 3 advanceTimeUs(TEST_FUEL_LEVEL_UPDATE_PERIOD_USEC - 1);
93
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 3 EXPECT_EQ(convert(11.1f), previousValue);
94 3 }
95
96 1 FuelLevelBinsCurve FuelLevelFuncTest::getTestFuelLevelBins() {
97 FuelLevelBinsCurve result;
98 1 const long binsCount = result.size();
99 1 float nextBin = 0.0f;
100 // Initialize first bins with arbitrary increasing values:
101
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 6 for (int i = 0; i < binsCount - 3; i++) {
102 5 nextBin += 0.1f;
103 5 result[i] = nextBin;
104 }
105 1 result[binsCount - 3] = EXPECTED_FILTERED_VALUE_2;
106 1 result[binsCount - 2] = EXPECTED_FILTERED_VALUE_1;
107 1 result[binsCount - 1] = EXPECTED_FILTERED_VALUE_0;
108
109 // Validate bins - they should be increasing
110 1 float latestBin = 0.0f;
111
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 9 for (const float bin: result) {
112
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 8 EXPECT_TRUE(latestBin < bin);
113 8 latestBin = bin;
114 }
115
116 1 return result;
117 }
118
119 1 FuelLevelValuesCurve FuelLevelFuncTest::getTestFuelLevelValues() {
120 1 FuelLevelValuesCurve result;
121
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 1 result.fill(TEST_DEFAULT_FUEL_LEVEL);
122 1 const long valuesCount = result.size();
123 1 result[valuesCount - 3] = EXPECTED_FUEL_LEVEL_2;
124 1 result[valuesCount - 2] = EXPECTED_FUEL_LEVEL_1;
125 1 result[valuesCount - 1] = EXPECTED_FUEL_LEVEL_0;
126 1 return result;
127 }
128
129 4 TEST_F(FuelLevelFuncTest, checkConversion) {
130
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 1 EXPECT_EQ(convert(INPUT_VALUE_0), EXPECTED_FUEL_LEVEL_0);
131 1 checkThatNewValueIsIgnoredDuringUpdatePeriod(EXPECTED_FUEL_LEVEL_0);
132
133 1 advanceTimeUs(1);
134
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 1 EXPECT_EQ(convert(INPUT_VALUE_1), EXPECTED_FUEL_LEVEL_1);
135 1 checkThatNewValueIsIgnoredDuringUpdatePeriod(EXPECTED_FUEL_LEVEL_1);
136
137 1 advanceTimeUs(1);
138
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 1 EXPECT_EQ(convert(INPUT_VALUE_2), EXPECTED_FUEL_LEVEL_2);
139 1 checkThatNewValueIsIgnoredDuringUpdatePeriod(EXPECTED_FUEL_LEVEL_2);
140 1 }
141
142 4 TEST_F(FuelLevelFuncTest, checkThresholds) {
143
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 1 EXPECT_EQ(convert(TEST_FUEL_LEVEL_LOW_THRESHOLD_VOLTAGE), TEST_DEFAULT_FUEL_LEVEL);
144
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 1 EXPECT_EQ(invalidConvert(TEST_FUEL_LEVEL_LOW_THRESHOLD_VOLTAGE - EPS5D), UnexpectedCode::Low);
145
146 // conversion result is not affected by previous successful conversion result:
147
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 1 EXPECT_EQ(convert(INPUT_VALUE_0), EXPECTED_FUEL_LEVEL_0);
148
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 1 EXPECT_EQ(invalidConvert(TEST_FUEL_LEVEL_HIGH_THRESHOLD_VOLTAGE + EPS5D), UnexpectedCode::High);
150 // conversion result is not affected by previous successful conversion result:
151
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 1 EXPECT_EQ(convert(TEST_FUEL_LEVEL_HIGH_THRESHOLD_VOLTAGE), EXPECTED_FUEL_LEVEL_0);
152 1 }
153 }
154