Split test struct and handler macros out for the emitter/spec tests

test/teststruct.h

@@ -0,0 +1,18 @@
+#pragma once
+
+#include <string>
+
+#define YAML_ASSERT(cond) do { if(!(cond)) return "  Assert failed: " #cond; } while(false)
+
+namespace Test
+{
+	struct TEST {
+		TEST(): ok(false) {}
+		TEST(bool ok_): ok(ok_) {}
+		TEST(const char *error_): ok(false), error(error_) {}
+		
+		bool ok;
+		std::string error;
+	};
+    
+}