File cache improvement, deleting old temp files

libsrc/ffdec_lib/test/com/jpexs/decompiler/flash/FileHashMapTest.java

@@ -0,0 +1,53 @@
+
+package com.jpexs.decompiler.flash;
+
+import com.jpexs.helpers.FileHashMap;
+import java.io.File;
+import java.io.FileNotFoundException;
+import java.util.logging.Level;
+import java.util.logging.Logger;
+import org.testng.Assert;
+import org.testng.annotations.Test;
+import static org.testng.Assert.assertEquals;
+import static org.testng.Assert.assertNull;
+import static org.testng.Assert.assertTrue;
+import static org.testng.Assert.assertFalse;
+import static org.testng.Assert.fail;
+
+
+/**
+ *
+ * @author JPEXS
+ */
+public class FileHashMapTest {
+    @Test
+    public void testFileHashMap() throws Exception {
+        File tfile = new File("fmtest.bin");        
+        FileHashMap<String,String> map = new FileHashMap<>(tfile);
+        assertTrue(map.isEmpty()); 
+        assertEquals(map.size(), 0);
+        map.put("A", "cat");
+        assertEquals(map.get("A"),"cat");
+        assertNull(map.get("B"));        
+        map.put("B", "dog");
+        assertEquals(map.get("B"),"dog");
+        assertEquals(map.get("A"),"cat");        
+        map.put("C", "parrot");
+        assertTrue(map.containsKey("A"));
+        assertTrue(map.containsKey("B"));
+        assertTrue(map.containsKey("C"));
+        assertFalse(map.containsKey("D"));                                
+        assertEquals(map.size(), 3);        
+        map.remove("A");
+        assertFalse(map.containsKey("A"));  
+        map.put("X", "tac");
+        map.delete();
+        try{
+            map.get("A");
+            fail();
+        }catch(NullPointerException nfe){
+            //okay
+        }
+        
+    }
+}