1 files changed, 66 insertions, 0 deletions
diff --git a/tests/src/cgeo/geocaching/utils/LeastRecentlyUsedSetTest.java b/tests/src/cgeo/geocaching/utils/LeastRecentlyUsedSetTest.java
new file mode 100644
index 0000000..4b4e5f7
--- /dev/null
+++ b/tests/src/cgeo/geocaching/utils/LeastRecentlyUsedSetTest.java
@@ -0,0 +1,66 @@
+package cgeo.geocaching.utils;
+
+import cgeo.geocaching.cgCache;
+
+import java.util.Set;
+
+public class LeastRecentlyUsedSetTest extends AbstractLRUTest {
+
+    public static void testLruMode() {
+        final Set<String> set = new LeastRecentlyUsedSet<String>(5);
+        set.add("one");
+        set.add("two");
+        set.add("three");
+        // read does not change anything
+        set.contains("one");
+        set.add("four");
+        // re-put should update the order
+        set.add("three");
+        set.add("five");
+        // read does not change anything
+        set.contains("one");
+        set.add("six");
+        set.add("seven");
+
+        assertEquals("four, three, five, six, seven", colToStr(set));
+    }
+
+    public static void testRemoveEldestEntry() {
+        final LeastRecentlyUsedSet<cgCache> caches = new LeastRecentlyUsedSet<cgCache>(10);
+        final cgCache first = new cgCache();
+        first.setGeocode("1");
+        assertTrue(caches.add(first));
+
+        final cgCache second = new cgCache();
+        second.setGeocode("2");
+        assertTrue(caches.add(second));
+
+        assertEquals(2, caches.size());
+        assertTrue(caches.contains(first));
+        assertTrue(caches.contains(second));
+
+        // adding first cache again does not change set
+        assertFalse(caches.add(first));
+        assertEquals(2, caches.size());
+
+        for (int i = 3; i <= 10; i++) {
+            final cgCache cache = new cgCache();
+            cache.setGeocode(Integer.toString(i));
+            assertTrue(caches.add(cache));
+        }
+
+        assertEquals(10, caches.size());
+        assertTrue(caches.contains(first));
+        assertTrue(caches.contains(second));
+
+        final cgCache c11 = new cgCache();
+        c11.setGeocode("11");
+        assertTrue(caches.add(c11));
+
+        assertEquals(10, caches.size());
+
+        // first was used again, there second is the oldest and has been overwritten by 11
+        assertTrue(caches.contains(first));
+        assertFalse(caches.contains(second));
+    }
+}
+\ No newline at end of file