95 lines
2.3 KiB
C++
95 lines
2.3 KiB
C++
#if GTEST
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#include <gtest/gtest.h>
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#include <limits>
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#include <math.h>
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#include "Polar.h"
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#define FLOAT_INFINITY std::numeric_limits<float>::infinity()
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TEST(Polar, FromVector2) {
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Vector2 v = Vector2(0, 1);
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Polar p = Polar(v);
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EXPECT_FLOAT_EQ(p.distance, 1.0F) << "p.distance 0 1";
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EXPECT_FLOAT_EQ(p.angle, 0.0F) << "s.angle 0 0 1";
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v = Vector2(1, 0);
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p = Polar(v);
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EXPECT_FLOAT_EQ(p.distance, 1.0F) << "p.distance 1 0";
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EXPECT_FLOAT_EQ(p.angle, 90.0F) << "s.angle 1 0";
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v = Vector2(-1, 1);
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p = Polar(v);
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EXPECT_FLOAT_EQ(p.distance, sqrt(2.0F)) << "p.distance -1 1";
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EXPECT_NEAR(p.angle, -45.0F, 1.0e-05) << "s.angle -1 1";
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}
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TEST(Polar, FromSpherical) {
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Spherical s;
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Polar p;
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s = Spherical(1, 0, 0);
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p = Polar(s);
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EXPECT_FLOAT_EQ(p.distance, 1.0F) << "p.distance FromSpherical(1 0 0)";
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EXPECT_FLOAT_EQ(p.angle, 0.0F) << "p.angle FromSpherical(1 0 0)";
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s = Spherical(1, 45, 0);
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p = Polar(s);
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EXPECT_FLOAT_EQ(p.distance, 1.0F) << "p.distance FromSpherical(1 45 0)";
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EXPECT_FLOAT_EQ(p.angle, 45.0F) << "p.angle FromSpherical(1 45 0)";
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s = Spherical(1, -45, 0);
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p = Polar(s);
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EXPECT_FLOAT_EQ(p.distance, 1.0F) << "p.distance FromSpherical(1 -45 0)";
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EXPECT_FLOAT_EQ(p.angle, -45.0F) << "p.angle FromSpherical(1 -45 0)";
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s = Spherical(0, 0, 0);
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p = Polar(s);
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EXPECT_FLOAT_EQ(p.distance, 0.0F) << "p.distance FromSpherical(0 0 0)";
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EXPECT_FLOAT_EQ(p.angle, 0.0F) << "p.angle FromSpherical(0 0 0)";
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s = Spherical(-1, 0, 0);
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p = Polar(s);
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EXPECT_FLOAT_EQ(p.distance, 1.0F) << "p.distance FromSpherical(-1 0 0)";
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EXPECT_FLOAT_EQ(p.angle, 180.0F) << "p.angle FromSpherical(-1 0 0)";
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s = Spherical(0, 0, 90);
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p = Polar(s);
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EXPECT_FLOAT_EQ(p.distance, 0.0F) << "p.distance FromSpherical(0 0 90)";
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EXPECT_FLOAT_EQ(p.angle, 0.0F) << "p.angle FromSpherical(0 0 90)";
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}
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TEST(Polar, Negate) {
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Polar v = Polar(2, 45);
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Polar r = Polar::zero;
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r = -v;
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EXPECT_FLOAT_EQ(r.distance, 2);
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EXPECT_FLOAT_EQ(r.angle, -135);
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EXPECT_TRUE(r == Polar(2, -135)) << "Negate(2 45)";
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v = Polar(2, -45);
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r = -v;
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EXPECT_TRUE(r == Polar(2, 135)) << "Negate(2 -45)";
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v = Polar(2, 0);
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r = -v;
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EXPECT_TRUE(r == Polar(2, 180)) << "Negate(2 0)";
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v = Polar(0, 0);
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r = -v;
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EXPECT_FLOAT_EQ(r.distance, 0.0f);
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EXPECT_FLOAT_EQ(r.angle, 0.0f);
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EXPECT_TRUE(r == Polar(0, 0)) << "Negate(0 0)";
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}
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#endif |