Improved error messages for EndToEnd tests.

test/ExecutionFramework.h

@@ -131,6 +131,8 @@ public:
 		}
 	}
 
+	static std::pair<bool, std::string> compareAndCreateMessage(bytes const& _result, bytes const& _expectation);
+
 	static bytes encode(bool _value) { return encode(byte(_value)); }
 	static bytes encode(int _value) { return encode(u256(_value)); }
 	static bytes encode(size_t _value) { return encode(u256(_value)); }
@@ -293,6 +295,12 @@ protected:
 	u256 m_gasUsed;
 };
 
+#define ABI_CHECK(result, expectation) do { \
+	auto abiCheckResult = ExecutionFramework::compareAndCreateMessage((result), (expectation)); \
+	BOOST_CHECK_MESSAGE(abiCheckResult.first, abiCheckResult.second); \
+} while (0)
+
+
 }
 } // end namespaces