38 lines
843 B
C++
38 lines
843 B
C++
#include <rusefi/math.h>
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#include <gtest/gtest.h>
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#include <math.h>
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TEST(Util_Math, ExpTaylor)
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{
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// test from -2 < x < 0
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for(float x = -2; x < 0; x += 0.05)
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{
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// Compare taylor to libc implementation
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EXPECT_NEAR(expf_taylor(x), expf(x), 0.01f);
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}
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}
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TEST(Util_Math, clampf) {
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// off scale low
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EXPECT_EQ(clampF(10, 5, 20), 10);
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EXPECT_EQ(clampF(-10, -50, 10), -10);
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// in range (unclamped)
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EXPECT_EQ(clampF(10, 15, 20), 15);
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EXPECT_EQ(clampF(-10, -5, 10), -5);
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// off scale high
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EXPECT_EQ(clampF(10, 25, 20), 20);
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EXPECT_EQ(clampF(-10, 50, 10), 10);
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}
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TEST(Util_Math, tanf_taylor) {
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// Function is only specified from [0, pi/2) ish, so test that range
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for (float i = 0; i < 1.5; i += 0.1f)
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{
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// Compare to libc implementation
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EXPECT_NEAR(tanf_taylor(i), tanf(i), 0.05f) << "I = " << i;
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}
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}
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