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|---|---|---|---|---|
| 1 | /* | |||
| 2 | * @author Matthew Kennedy, (c) 2019 | |||
| 3 | */ | |||
| 4 | ||||
| 5 | #include "pch.h" | |||
| 6 | ||||
| 7 | #include "resistance_func.h" | |||
| 8 | ||||
| 9 | 4 | TEST(resistance, OutOfRange) | ||
| 10 | { | |||
| 11 | 1 | ResistanceFunc f; | ||
| 12 |
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1 | f.configure(5, 10000, false); | |
| 13 | ||||
| 14 | // Something in the middle should be valid | |||
| 15 | { | |||
| 16 |
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1 | auto r = f.convert(2.5f); | |
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1 | ASSERT_TRUE(r.Valid); | |
| 18 | } | |||
| 19 | ||||
| 20 | // Something near 0.05v should be valid | |||
| 21 | { | |||
| 22 |
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1 | auto r = f.convert(0.051f); | |
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1 | EXPECT_TRUE(r.Valid); | |
| 24 | } | |||
| 25 | ||||
| 26 | // Something just under 0.05v should be invalid | |||
| 27 | { | |||
| 28 |
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1 | auto r = f.convert(0.049f); | |
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1 | EXPECT_FALSE(r.Valid); | |
| 30 | } | |||
| 31 | ||||
| 32 | // Something near 0.98 * 5v should be valid | |||
| 33 | { | |||
| 34 |
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1 | auto r = f.convert(0.97f * 5); | |
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1 | EXPECT_TRUE(r.Valid); | |
| 36 | } | |||
| 37 | ||||
| 38 | // Something just above 0.98 * 5v should be invalid | |||
| 39 | { | |||
| 40 |
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1 | auto r = f.convert(0.99f * 5); | |
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1 | EXPECT_FALSE(r.Valid); | |
| 42 | } | |||
| 43 | } | |||
| 44 | ||||
| 45 | 4 | TEST(resistance, InRange) | ||
| 46 | { | |||
| 47 | 1 | ResistanceFunc f; | ||
| 48 |
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1 | f.configure(5, 10000, false); | |
| 49 | ||||
| 50 | // 1 volt -> 2500 ohms low side | |||
| 51 | { | |||
| 52 |
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1 | auto r = f.convert(1.0f); | |
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1 | EXPECT_TRUE(r.Valid); | |
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1 | EXPECT_FLOAT_EQ(r.Value, 2500); | |
| 55 | } | |||
| 56 | ||||
| 57 | // 2 volt -> 6666.667 ohm ohms low side | |||
| 58 | // 20k/3 gives us an exact result | |||
| 59 | { | |||
| 60 |
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1 | auto r = f.convert(2.0f); | |
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1 | EXPECT_TRUE(r.Valid); | |
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1 | EXPECT_FLOAT_EQ(r.Value, 20000.0f / 3); | |
| 63 | } | |||
| 64 | ||||
| 65 | // 3 volt -> 15000 ohms low side | |||
| 66 | { | |||
| 67 |
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1 | auto r = f.convert(3.0f); | |
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1 | EXPECT_TRUE(r.Valid); | |
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1 | EXPECT_FLOAT_EQ(r.Value, 15000); | |
| 70 | } | |||
| 71 | ||||
| 72 | // 4 volt -> 40000 ohms low side | |||
| 73 | { | |||
| 74 |
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1 | auto r = f.convert(4.0f); | |
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1 | EXPECT_TRUE(r.Valid); | |
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1 | EXPECT_FLOAT_EQ(r.Value, 40000); | |
| 77 | } | |||
| 78 | 1 | } | ||
| 79 | ||||
| 80 | 4 | TEST(resistance, PulldownMode) | ||
| 81 | { | |||
| 82 | 1 | ResistanceFunc f; | ||
| 83 |
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1 | f.configure(5, 10000, true); | |
| 84 | ||||
| 85 | // 4 volt -> 2500 ohms high side | |||
| 86 | { | |||
| 87 |
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1 | auto r = f.convert(4.0f); | |
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1 | EXPECT_TRUE(r.Valid); | |
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1 | EXPECT_FLOAT_EQ(r.Value, 2500); | |
| 90 | } | |||
| 91 | ||||
| 92 | // 3 volt -> 6666.667 ohm ohms high side | |||
| 93 | // 20k/3 gives us an exact result | |||
| 94 | { | |||
| 95 |
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1 | auto r = f.convert(3.0f); | |
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1 | EXPECT_TRUE(r.Valid); | |
| 97 |
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1 | EXPECT_FLOAT_EQ(r.Value, 20000.0f / 3); | |
| 98 | } | |||
| 99 | ||||
| 100 | // 2 volt -> 15000 ohms high side | |||
| 101 | { | |||
| 102 |
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1 | auto r = f.convert(2.0f); | |
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1 | EXPECT_TRUE(r.Valid); | |
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1 | EXPECT_FLOAT_EQ(r.Value, 15000); | |
| 105 | } | |||
| 106 | ||||
| 107 | // 1 volt -> 40000 ohms high side | |||
| 108 | { | |||
| 109 |
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1 | auto r = f.convert(1.0f); | |
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1 | EXPECT_TRUE(r.Valid); | |
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1 | EXPECT_FLOAT_EQ(r.Value, 40000); | |
| 112 | } | |||
| 113 | 1 | } | ||
| 114 |