pylucene 3.5.0-3

[pylucene.git] / lucene-java-3.5.0 / lucene / contrib / spatial / src / test / org / apache / lucene / spatial / geometry / TestDistanceUnits.java

diff --git a/lucene-java-3.5.0/lucene/contrib/spatial/src/test/org/apache/lucene/spatial/geometry/TestDistanceUnits.java b/lucene-java-3.5.0/lucene/contrib/spatial/src/test/org/apache/lucene/spatial/geometry/TestDistanceUnits.java
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+++ b/lucene-java-3.5.0/lucene/contrib/spatial/src/test/org/apache/lucene/spatial/geometry/TestDistanceUnits.java
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+package org.apache.lucene.spatial.geometry;
+
+/**
+ * Licensed to the Apache Software Foundation (ASF) under one or more
+ * contributor license agreements.  See the NOTICE file distributed with
+ * this work for additional information regarding copyright ownership.
+ * The ASF licenses this file to You under the Apache License, Version 2.0
+ * (the "License"); you may not use this file except in compliance with
+ * the License.  You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+import org.apache.lucene.util.LuceneTestCase;
+import org.junit.Test;
+
+/**
+ * Tests for {@link org.apache.lucene.spatial.geometry.DistanceUnits}
+ */
+public class TestDistanceUnits extends LuceneTestCase {
+
+  /**
+   * Pass condition: When finding the DistanceUnit for "km", KILOMETRES is found.  When finding the DistanceUnit for
+   * "miles", MILES is found.
+   */
+  @Test
+  public void testFindDistanceUnit() {
+    assertEquals(DistanceUnits.KILOMETERS, DistanceUnits.findDistanceUnit("km"));
+    assertEquals(DistanceUnits.MILES, DistanceUnits.findDistanceUnit("miles"));
+  }
+
+  /**
+   * Pass condition: Searching for the DistanceUnit of an unknown unit "mls" should throw an IllegalArgumentException.
+   */
+  @Test
+  public void testFindDistanceUnit_unknownUnit() {
+    try {
+      DistanceUnits.findDistanceUnit("mls");
+      assertTrue("IllegalArgumentException should have been thrown", false);
+    } catch (IllegalArgumentException iae) {
+      // Expected
+    }
+  }
+
+  /**
+   * Pass condition: Converting between the same units should not change the value.  Converting from MILES to KILOMETRES
+   * involves multiplying the distance by the ratio, and converting from KILOMETRES to MILES involves dividing by the ratio
+   */
+  @Test
+  public void testConvert() {
+    assertEquals(10.5, DistanceUnits.MILES.convert(10.5, DistanceUnits.MILES), 0D);
+    assertEquals(10.5, DistanceUnits.KILOMETERS.convert(10.5, DistanceUnits.KILOMETERS), 0D);
+    assertEquals(10.5 * 1.609344, DistanceUnits.KILOMETERS.convert(10.5, DistanceUnits.MILES), 0D);
+    assertEquals(10.5 / 1.609344, DistanceUnits.MILES.convert(10.5, DistanceUnits.KILOMETERS), 0D);
+  }
+}