diff --git a/Exchange/tests/Exchange.test.mq5 b/Exchange/tests/Exchange.test.mq5
index d3d289c61..38ac7cbe8 100644
--- a/Exchange/tests/Exchange.test.mq5
+++ b/Exchange/tests/Exchange.test.mq5
@@ -30,50 +30,87 @@
 #include "../Exchange.h"
 
 // Test classes.
-class AccountDummy : public AccountBase {};  // <AccountForexState, AccountForexEntry>
-class ExchangeDummy : public Exchange {};
-class SymbolDummy : public SymbolInfo {};
-class TradeDummy : public Trade {
- public:
-  TradeDummy(IndicatorBase *_indi_candle) : Trade(_indi_candle) {}
-};
-
-// Global variables.
-ExchangeDummy ex_dummy;
-
-// Test dummy Exchange.
-bool TestExchange01() {
-  bool _result = true;
-  // Initialize a dummy Exchange instance.
-  Ref<ExchangeDummy> exchange = new ExchangeDummy();
-
-  // Attach instances of dummy accounts.
-  Ref<AccountDummy> account01 = new AccountDummy();
-  Ref<AccountDummy> account02 = new AccountDummy();
-  exchange REF_DEREF AccountAdd(account01.Ptr(), "Account01");
-  exchange REF_DEREF AccountAdd(account02.Ptr(), "Account02");
-
-  // Attach instances of dummy symbols.
-  Ref<SymbolDummy> symbol01 = new SymbolDummy();
-  Ref<SymbolDummy> symbol02 = new SymbolDummy();
-  exchange REF_DEREF SymbolAdd(symbol01.Ptr(), "Symbol01");
-  exchange REF_DEREF SymbolAdd(symbol02.Ptr(), "Symbol02");
-
-  // Attach instances of dummy trades.
-  Ref<TradeDummy> trade01 = new TradeDummy(Platform::FetchDefaultCandleIndicator(_Symbol, PERIOD_CURRENT));
-  Ref<TradeDummy> trade02 = new TradeDummy(Platform::FetchDefaultCandleIndicator(_Symbol, PERIOD_CURRENT));
-
-  exchange REF_DEREF TradeAdd(trade01.Ptr(), "Trade01");
-  exchange REF_DEREF TradeAdd(trade02.Ptr(), "Trade02");
-  return _result;
-}
+class AccountDummy : public AccountBase {
+  /**
+   * Returns balance value of the current account.
+   */
+  float GetBalance() { return 0; }
 
-/**
- * Implements OnInit().
- */
-int OnInit() {
-  Platform::Init();
-  bool _result = true;
-  assertTrueOrFail(TestExchange01(), "Fail!");
-  return _result && GetLastError() == 0 ? INIT_SUCCEEDED : INIT_FAILED;
-}
+  /**
+   * Returns credit value of the current account.
+   */
+  float GetCredit() { return 0; }
+
+  /**
+   * Returns profit value of the current account.
+   */
+  float GetProfit() { return 0; }
+
+  /**
+   * Returns equity value of the current account.
+   */
+  float GetEquity() { return 0; }
+
+  /**
+   * Returns margin value of the current account.
+   */
+  float GetMarginUsed() { return 0; }
+
+  /**
+   * Returns free margin value of the current account.
+   */
+  float GetMarginFree() { return 0; }
+
+  /**
+   * Get account available margin.
+   */
+  float GetMarginAvail() {
+    return 0;
+    {}
+  };  // <AccountForexState, AccountForexEntry>
+  class ExchangeDummy : public Exchange {};
+  class SymbolDummy : public SymbolInfo {};
+  class TradeDummy : public Trade {
+   public:
+    TradeDummy(IndicatorBase *_indi_candle) : Trade(_indi_candle) {}
+  };
+
+  // Global variables.
+  ExchangeDummy ex_dummy;
+
+  // Test dummy Exchange.
+  bool TestExchange01() {
+    bool _result = true;
+    // Initialize a dummy Exchange instance.
+    Ref<ExchangeDummy> exchange = new ExchangeDummy();
+
+    // Attach instances of dummy accounts.
+    Ref<AccountDummy> account01 = new AccountDummy();
+    Ref<AccountDummy> account02 = new AccountDummy();
+    exchange REF_DEREF AccountAdd(account01.Ptr(), "Account01");
+    exchange REF_DEREF AccountAdd(account02.Ptr(), "Account02");
+
+    // Attach instances of dummy symbols.
+    Ref<SymbolDummy> symbol01 = new SymbolDummy();
+    Ref<SymbolDummy> symbol02 = new SymbolDummy();
+    exchange REF_DEREF SymbolAdd(symbol01.Ptr(), "Symbol01");
+    exchange REF_DEREF SymbolAdd(symbol02.Ptr(), "Symbol02");
+
+    // Attach instances of dummy trades.
+    Ref<TradeDummy> trade01 = new TradeDummy(Platform::FetchDefaultCandleIndicator(_Symbol, PERIOD_CURRENT));
+    Ref<TradeDummy> trade02 = new TradeDummy(Platform::FetchDefaultCandleIndicator(_Symbol, PERIOD_CURRENT));
+
+    exchange REF_DEREF TradeAdd(trade01.Ptr(), "Trade01");
+    exchange REF_DEREF TradeAdd(trade02.Ptr(), "Trade02");
+    return _result;
+  }
+
+  /**
+   * Implements OnInit().
+   */
+  int OnInit() {
+    Platform::Init();
+    bool _result = true;
+    assertTrueOrFail(TestExchange01(), "Fail!");
+    return _result && GetLastError() == 0 ? INIT_SUCCEEDED : INIT_FAILED;
+  }