Add unit test TestKeePass2Reader.

src/format/KeePass2Reader.cpp

@@ -74,6 +74,7 @@ Database* KeePass2Reader::readDatabase(QIODevice* device, const CompositeKey& ke
 
     if (realStart != m_streamStartBytes) {
         raiseError("4");
+        return 0;
     }
 
     HashedBlockStream hashedStream(&cipherStream);

src/keys/PasswordKey.cpp

@@ -19,6 +19,15 @@
 
 #include "crypto/CryptoHash.h"
 
+PasswordKey::PasswordKey()
+{
+}
+
+PasswordKey::PasswordKey(const QString& password)
+{
+    setPassword(password);
+}
+
 QByteArray PasswordKey::rawKey() const
 {
     return m_key;

src/keys/PasswordKey.h

@@ -25,6 +25,8 @@
 class PasswordKey : public Key
 {
 public:
+    PasswordKey();
+    PasswordKey(const QString& password);
     QByteArray rawKey() const;
     void setPassword(const QString& password);
     PasswordKey* clone() const;