Modification: Functional tests initialized

Author: gistrec

functional_tests/SphericalUtil/computeAngleBetween.cpp

@@ -0,0 +1,41 @@
+#include "gtest/gtest.h"
+
+#include <PolyUtil.hpp>
+
+
+TEST(SphericalUtil, computeAngleBetween) {
+	LatLng up(90, 0);
+	LatLng down(-90, 0);
+	LatLng front(0, 0);
+	LatLng right(0, 90);
+	LatLng back(0, -180);
+	LatLng left(0, -90);
+
+	EXPECT_NEAR(SphericalUtil::computeAngleBetween(up, up),       0, 1e-6);
+	EXPECT_NEAR(SphericalUtil::computeAngleBetween(down, down),   0, 1e-6);
+	EXPECT_NEAR(SphericalUtil::computeAngleBetween(left, left),   0, 1e-6);
+	EXPECT_NEAR(SphericalUtil::computeAngleBetween(right, right), 0, 1e-6);
+	EXPECT_NEAR(SphericalUtil::computeAngleBetween(front, front), 0, 1e-6);
+	EXPECT_NEAR(SphericalUtil::computeAngleBetween(back, back),   0, 1e-6);
+
+	// Adjacent vertices
+	EXPECT_NEAR(SphericalUtil::computeAngleBetween(up, front), M_PI / 2, 1e-6);
+	EXPECT_NEAR(SphericalUtil::computeAngleBetween(up, right), M_PI / 2, 1e-6);
+	EXPECT_NEAR(SphericalUtil::computeAngleBetween(up, back),  M_PI / 2, 1e-6);
+	EXPECT_NEAR(SphericalUtil::computeAngleBetween(up, left),  M_PI / 2, 1e-6);
+
+	EXPECT_NEAR(SphericalUtil::computeAngleBetween(down, front), M_PI / 2, 1e-6);
+	EXPECT_NEAR(SphericalUtil::computeAngleBetween(down, right), M_PI / 2, 1e-6);
+	EXPECT_NEAR(SphericalUtil::computeAngleBetween(down, back),  M_PI / 2, 1e-6);
+	EXPECT_NEAR(SphericalUtil::computeAngleBetween(down, left),  M_PI / 2, 1e-6);
+
+	EXPECT_NEAR(SphericalUtil::computeAngleBetween(back, up),    M_PI / 2, 1e-6);
+	EXPECT_NEAR(SphericalUtil::computeAngleBetween(back, right), M_PI / 2, 1e-6);
+	EXPECT_NEAR(SphericalUtil::computeAngleBetween(back, down),  M_PI / 2, 1e-6);
+	EXPECT_NEAR(SphericalUtil::computeAngleBetween(back, left),  M_PI / 2, 1e-6);
+
+	// Opposite vertices
+	EXPECT_NEAR(SphericalUtil::computeAngleBetween(up, down),    M_PI, 1e-6);
+	EXPECT_NEAR(SphericalUtil::computeAngleBetween(front, back), M_PI, 1e-6);
+	EXPECT_NEAR(SphericalUtil::computeAngleBetween(left, right), M_PI, 1e-6);
+}

functional_tests/SphericalUtil/computeDistanceBetween.cpp

@@ -0,0 +1,11 @@
+#include "gtest/gtest.h"
+
+#include <PolyUtil.hpp>
+
+
+TEST(SphericalUtil, computeDistanceBetween) {
+	LatLng up(90, 0);
+	LatLng down(-90, 0);
+
+	EXPECT_NEAR(SphericalUtil::computeDistanceBetween(up, down), M_PI * MathUtil::EARTH_RADIUS, 1e-6);
+}

functional_tests/SphericalUtil/computeHeading.cpp

@@ -0,0 +1,34 @@
+#include "gtest/gtest.h"
+
+#include <PolyUtil.hpp>
+
+
+TEST(SphericalUtil, computeHeading) {
+	LatLng up(90, 0);
+	LatLng down(-90, 0);
+	LatLng front(0, 0);
+	LatLng right(0, 90);
+	LatLng back(0, -180);
+	LatLng left(0, -90);
+
+	// Opposing vertices for which there is a result
+	EXPECT_NEAR(SphericalUtil::computeHeading(up, down), -180, 1e-6);
+	EXPECT_NEAR(SphericalUtil::computeHeading(down, up), 0, 1e-6);
+
+	// Adjacent vertices for which there is a result
+	EXPECT_NEAR(SphericalUtil::computeHeading(front, up), 0, 1e-6);
+	EXPECT_NEAR(SphericalUtil::computeHeading(right, up), 0, 1e-6);
+	EXPECT_NEAR(SphericalUtil::computeHeading(back, up),  0, 1e-6);
+	EXPECT_NEAR(SphericalUtil::computeHeading(down, up),  0, 1e-6);
+
+	EXPECT_NEAR(SphericalUtil::computeHeading(front, down), -180, 1e-6);
+	EXPECT_NEAR(SphericalUtil::computeHeading(right, down), -180, 1e-6);
+	EXPECT_NEAR(SphericalUtil::computeHeading(back, down),  -180, 1e-6);
+	EXPECT_NEAR(SphericalUtil::computeHeading(left, down),  -180, 1e-6);
+
+	EXPECT_NEAR(SphericalUtil::computeHeading(right, front), -90, 1e-6);
+	EXPECT_NEAR(SphericalUtil::computeHeading(left, front),   90, 1e-6);
+
+	EXPECT_NEAR(SphericalUtil::computeHeading(front, right), 90, 1e-6);
+	EXPECT_NEAR(SphericalUtil::computeHeading(back, right), -90, 1e-6);
+}