Disabled external gits

Alpano/tests/ch/epfl/alpano/DistanceTest.java

@@ -0,0 +1,37 @@
+package ch.epfl.alpano;
+
+import static ch.epfl.test.TestRandomizer.RANDOM_ITERATIONS;
+import static ch.epfl.test.TestRandomizer.newRandom;
+import static java.lang.Math.PI;
+import static java.lang.Math.scalb;
+import static org.junit.Assert.assertEquals;
+
+import java.util.Random;
+
+import org.junit.Test;
+
+public class DistanceTest {
+    private static double EARTH_CIRCUMFERENCE = 40_030_174; // rounded to nearest integer
+
+    @Test
+    public void toRadiansAndToMetersAreInverseForRandomValues() {
+        Random rng = newRandom();
+        for (int i = 0; i < RANDOM_ITERATIONS; ++i) {
+            double dRad = rng.nextDouble() * scalb(PI, 1);
+            double dRad2 = Distance.toRadians(Distance.toMeters(dRad));
+            assertEquals(dRad, dRad2, 1e-10);
+        }
+    }
+
+    @Test
+    public void toMetersIsCorrectForKnownValues() {
+        assertEquals(0, Distance.toMeters(0), 0);
+        assertEquals(EARTH_CIRCUMFERENCE, Distance.toMeters(scalb(PI, 1)), 0.5);
+    }
+
+    @Test
+    public void toRadiansIsCorrectForKnownValues() {
+        assertEquals(0, Distance.toRadians(0), 0);
+        assertEquals(scalb(PI, 1), Distance.toRadians(EARTH_CIRCUMFERENCE), 1e-5);
+    }
+}