1 files changed, 74 insertions, 0 deletions
diff --git a/tests/src/cgeo/geocaching/location/UnitsTest.java b/tests/src/cgeo/geocaching/location/UnitsTest.java
new file mode 100644
index 0000000..f03f6f0
--- /dev/null
+++ b/tests/src/cgeo/geocaching/location/UnitsTest.java
@@ -0,0 +1,74 @@
+package cgeo.geocaching.location;
+
+import static org.assertj.core.api.Assertions.assertThat;
+
+import cgeo.CGeoTestCase;
+import cgeo.geocaching.location.Units;
+import cgeo.geocaching.settings.Settings;
+import cgeo.geocaching.settings.TestSettings;
+
+import org.apache.commons.lang3.StringUtils;
+
+public class UnitsTest extends CGeoTestCase {
+
+    private static void assertDistance(final String expected, final float distance) {
+        final String actual = Units.getDistanceFromKilometers(distance);
+        if (!StringUtils.equals(expected, actual.replace(',', '.'))) { // make 1.2 the same as 1,2
+            fail("getHumanDistance(" + distance +
+                    ") [metric: " + (!Settings.useImperialUnits() ? "yes" : "no") +
+                    "] fails to match " + expected + ": " + actual);
+        }
+    }
+
+    // Make method non-static so that Settings is initialized
+    @SuppressWarnings("static-method")
+    public void testDistance() {
+        assertThat(Units.getDistanceFromKilometers(null)).isEqualTo("?");
+        final boolean savedImperial = Settings.useImperialUnits();
+        try {
+            TestSettings.setUseImperialUnits(false);
+            assertDistance("123 km", 122.782f);
+            assertDistance("123 km", 123.456f);
+            assertDistance("12.3 km", 12.3456f);
+            assertDistance("1.23 km", 1.23456f);
+            assertDistance("123 m", 0.123456f);
+            TestSettings.setUseImperialUnits(true);
+            assertDistance("76.7 mi", 123.456f);
+            assertDistance("7.67 mi", 12.3456f);
+            assertDistance("0.77 mi", 1.23456f);
+            assertDistance("405 ft", 0.123456f);
+            assertDistance("40.5 ft", 0.0123456f);
+        } finally {
+            TestSettings.setUseImperialUnits(savedImperial);
+        }
+    }
+
+    // Make method non-static so that Settings is initialized
+    @SuppressWarnings("static-method")
+    public void testSpeed() {
+        assertThat(Units.getDistanceFromKilometers(null)).isEqualTo("?");
+        final boolean savedImperial = Settings.useImperialUnits();
+        try {
+            TestSettings.setUseImperialUnits(false);
+            assertSpeed("123 km/h", 122.782f);
+            assertSpeed("123 km/h", 123.456f);
+            assertSpeed("12 km/h", 12.3456f);
+            assertSpeed("1 km/h", 1.23456f);
+            assertSpeed("0 km/h", 0.123456f);
+            TestSettings.setUseImperialUnits(true);
+            assertSpeed("77 mph", 123.456f);
+            assertSpeed("8 mph", 12.3456f);
+            assertSpeed("1 mph", 1.23456f);
+        } finally {
+            TestSettings.setUseImperialUnits(savedImperial);
+        }
+    }
+
+    private static void assertSpeed(final String expected, final float kilometersPerHour) {
+        final String actual = Units.getSpeed(kilometersPerHour);
+        if (!StringUtils.equals(expected, actual.replace(',', '.'))) {
+            fail("speed " + actual + " does not match expected " + expected);
+        }
+    }
+
+}