diff --git a/cache.hpp b/cache.hpp
index 503b2f4..811b161 100644
--- a/cache.hpp
+++ b/cache.hpp
@@ -90,7 +90,7 @@ void DataBase::Cache<K, V>::changeRecord(const K& key, const V& value) {
 
     if (*mode == Mode::full) {
         typename std::map<K, V>::iterator itr = cache->find(key);
-        if (itr != cache->end()) {
+        if (itr == cache->end()) {
             throw NotFound(DataBase::_Table::toString(key), DataBase::Table<K, V>::db->name, DataBase::Table<K, V>::name);
         }
         Table<K, V>::changeRecord(key, value);
diff --git a/test/basic.cpp b/test/basic.cpp
index 499c0ee..2ee0262 100644
--- a/test/basic.cpp
+++ b/test/basic.cpp
@@ -219,3 +219,62 @@ TEST_F(DataBaseTest, CountAndDrop) {
     EXPECT_EQ(c1->count(), 2);
 }
 
+TEST_F(DataBaseTest, Change) {
+    EXPECT_EQ(db->ready(), true);
+    EXPECT_EQ(t1->count(), 1);
+    EXPECT_EQ(t2->count(), 1);
+    EXPECT_EQ(c1->count(), 2);
+
+    EXPECT_EQ(t1->getRecord(2), 2);
+    EXPECT_EQ(t2->getRecord("sdfhga"), "world");
+    EXPECT_EQ(c1->getRecord(15), "world");
+    EXPECT_EQ(c1->getRecord(12), "grr grr");
+
+    t1->addRecord(58, 39);
+    t2->addRecord("lawfirm", "stumble");
+    c1->addRecord(89, "answer");
+
+    t1->changeRecord(2, 49);
+    t2->changeRecord("sdfhga", "void");
+    c1->changeRecord(15, "recording");
+    c1->changeRecord(12, "thermal");
+
+    EXPECT_EQ(t1->getRecord(2), 49);
+    EXPECT_EQ(t2->getRecord("sdfhga"), "void");
+    EXPECT_EQ(c1->getRecord(15), "recording");
+    EXPECT_EQ(c1->getRecord(12), "thermal");
+
+    EXPECT_EQ(t1->getRecord(58), 39);
+    EXPECT_EQ(t2->getRecord("lawfirm"), "stumble");
+    EXPECT_EQ(c1->getRecord(89), "answer");
+
+    EXPECT_EQ(t1->count(), 2);
+    EXPECT_EQ(t2->count(), 2);
+    EXPECT_EQ(c1->count(), 3);
+}
+
+TEST_F(DataBaseTest, Force) {
+    EXPECT_EQ(db->ready(), true);
+
+    t1->forceRecord(58, 35);                    //changing
+    t1->forceRecord(68, 36);                    //adding
+    t2->forceRecord("prophecy", "dumpling");    //adding
+    t2->forceRecord("lawfirm", "paracetamol");  //changing
+    c1->forceRecord(89, "canine");              //changing
+    c1->forceRecord(98, "duration");            //adding
+
+    EXPECT_EQ(t1->getRecord(2), 49);
+    EXPECT_EQ(t1->getRecord(58), 35);
+    EXPECT_EQ(t1->getRecord(68), 36);
+    EXPECT_EQ(t2->getRecord("sdfhga"), "void");
+    EXPECT_EQ(t2->getRecord("prophecy"), "dumpling");
+    EXPECT_EQ(t2->getRecord("lawfirm"), "paracetamol");
+    EXPECT_EQ(c1->getRecord(15), "recording");
+    EXPECT_EQ(c1->getRecord(12), "thermal");
+    EXPECT_EQ(c1->getRecord(89), "canine");
+    EXPECT_EQ(c1->getRecord(98), "duration");
+
+    EXPECT_EQ(t1->count(), 3);
+    EXPECT_EQ(t2->count(), 3);
+    EXPECT_EQ(c1->count(), 4);
+}