Add test, Fix #233

src/test/java/net/openhft/chronicle/map/LostKeyTest.java

@@ -0,0 +1,60 @@
+package net.openhft.chronicle.map;
+
+import net.openhft.chronicle.core.values.LongValue;
+import net.openhft.chronicle.values.Values;
+import org.junit.Assert;
+import org.junit.Test;
+import shaded.org.apache.commons.codec.binary.Hex;
+
+import java.io.File;
+
+public class LostKeyTest {
+
+    // See https://github.com/OpenHFT/Chronicle-Map/issues/233
+    @Test
+    public void lostkeysTest() throws Exception {
+
+        File storagetmp = new File("./tmp.dat");
+        if (storagetmp.exists()) {
+            storagetmp.delete();
+        }
+        storagetmp.deleteOnExit();
+        try {
+            LongValue valueSample = Values.newHeapInstance(LongValue.class);
+            ChronicleMap<byte[], LongValue> mmap = ChronicleMap
+                    .of(byte[].class, LongValue.class)
+                    .entries(10)
+                    .actualSegments(1)
+                    .constantValueSizeBySample(valueSample)
+                    .constantKeySizeBySample(new byte[36])
+                    .removeReturnsNull(false)
+                    .createPersistedTo(storagetmp);
+
+            valueSample.setValue(1);
+            String lostKey = "12b5633bad1f9c167d523ad1aa1947b2732a865bf5414eab2f9e5ae5d5c191ba00000001";
+
+            byte[] h1add = Hex.decodeHex("591e91f809d716912ca1d4a9295e70c3e78bab077683f79350f101da6458807300000000");
+            mmap.put(h1add, valueSample);
+
+            byte[] bLostKey = Hex.decodeHex(lostKey);
+            mmap.put(bLostKey, valueSample);
+
+            LongValue v1 = mmap.remove(h1add);
+            Assert.assertEquals(1L, v1.getValue());
+
+            byte[] h3add = Hex.decodeHex("6f80ca7441710cf0942cf99e3e8aa59d38d73b124730306afeb1aec8f08fd76b00000000");
+            mmap.put(h3add, valueSample);
+            //here we lost key
+            LongValue lostKeyVal = mmap.get(bLostKey);
+            Assert.assertEquals(1L, lostKeyVal.getValue());
+
+            LongValue v2 = mmap.remove(bLostKey);
+            Assert.assertEquals(1L, v2.getValue());
+        } finally {
+            if (storagetmp.exists()) {
+                storagetmp.delete();
+            }
+        }
+    }
+
+}