Index: trunk/test/unit/org/openstreetmap/josm/data/projection/CustomProjectionTest.java
===================================================================
--- trunk/test/unit/org/openstreetmap/josm/data/projection/CustomProjectionTest.java	(revision 10870)
+++ trunk/test/unit/org/openstreetmap/josm/data/projection/CustomProjectionTest.java	(revision 10870)
@@ -0,0 +1,73 @@
+// License: GPL. For details, see LICENSE file.
+package org.openstreetmap.josm.data.projection;
+
+import static org.junit.Assert.assertEquals;
+import static org.junit.Assert.assertTrue;
+import static org.junit.Assert.fail;
+
+import java.util.stream.Stream;
+
+import org.junit.Rule;
+import org.junit.Test;
+import org.openstreetmap.josm.testutils.JOSMTestRules;
+
+import edu.umd.cs.findbugs.annotations.SuppressFBWarnings;
+
+/**
+ * Tests for {@link CustomProjection}.
+ * @author Michael Zangl
+ */
+public class CustomProjectionTest {
+    /**
+     * Need pref to load pref.
+     */
+    @Rule
+    @SuppressFBWarnings(value = "URF_UNREAD_PUBLIC_OR_PROTECTED_FIELD")
+    public JOSMTestRules test = new JOSMTestRules().preferences();
+
+    /**
+     * Test {@link CustomProjection#parseAngle(String, String)}
+     * @throws ProjectionConfigurationException in case of error
+     */
+    @Test
+    public void testParseAngle() throws ProjectionConfigurationException {
+        assertEquals(0, CustomProjection.parseAngle("0", "xxx"), 1e-10);
+        assertEquals(1, CustomProjection.parseAngle("1", "xxx"), 1e-10);
+        assertEquals(1.1, CustomProjection.parseAngle("1.1", "xxx"), 1e-10);
+
+        assertEquals(1, CustomProjection.parseAngle("1d", "xxx"), 1e-10);
+        assertEquals(1.1, CustomProjection.parseAngle("1.1d", "xxx"), 1e-10);
+
+        assertEquals(1 / 60.0, CustomProjection.parseAngle("1'", "xxx"), 1e-10);
+        assertEquals(1.1 / 60.0, CustomProjection.parseAngle("1.1'", "xxx"), 1e-10);
+
+        assertEquals(1 / 3600.0, CustomProjection.parseAngle("1\"", "xxx"), 1e-10);
+        assertEquals(1.1 / 3600.0, CustomProjection.parseAngle("1.1\"", "xxx"), 1e-10);
+
+        // negate
+        assertEquals(-1.1, CustomProjection.parseAngle("-1.1", "xxx"), 1e-10);
+        assertEquals(1.1, CustomProjection.parseAngle("1.1N", "xxx"), 1e-10);
+        assertEquals(1.1, CustomProjection.parseAngle("1.1E", "xxx"), 1e-10);
+        assertEquals(-1.1, CustomProjection.parseAngle("1.1S", "xxx"), 1e-10);
+        assertEquals(-1.1, CustomProjection.parseAngle("1.1W", "xxx"), 1e-10);
+        assertEquals(-1.1, CustomProjection.parseAngle("-1.1N", "xxx"), 1e-10);
+        assertEquals(-1.1, CustomProjection.parseAngle("-1.1E", "xxx"), 1e-10);
+        assertEquals(1.1, CustomProjection.parseAngle("-1.1S", "xxx"), 1e-10);
+        assertEquals(1.1, CustomProjection.parseAngle("-1.1W", "xxx"), 1e-10);
+
+        // combine
+        assertEquals(1.1 + 3 / 60.0 + 5.2 / 3600.0, CustomProjection.parseAngle("1.1d3'5.2\"", "xxx"), 1e-10);
+
+        // fail
+        Stream.of("", "-", "-N", "N", "1.1 ", "x", "1.1d1.1d", "1.1e", "1.1.1", ".1", "1.1d3\"5.2'").forEach(
+                s -> {
+                    try {
+                        CustomProjection.parseAngle(s, "xxxx");
+                        fail("Expected exception for " + s);
+                    } catch (ProjectionConfigurationException e) {
+                        // good!
+                        assertTrue(e.getMessage().contains("xxx"));
+                    }
+                });
+    }
+}