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git-svn-id: svn://svn.code.sf.net/p/loki-lib/code/trunk@64 7ec92016-0320-0410-acc4-a06ded1c099a

tools/RegressionTest/DataGeneratorsTest.h

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+//DataGeneratorsTest.h
+
+
+#ifndef DATAGENERATORSTEST_H
+#define DATAGENERATORSTEST_H
+
+#include <typeinfo>
+#include <Loki/DataGenerators.h>
+#include "UnitTest.h"
+
+template<typename T>
+T& remove_const(const T& t)
+	{
+	return const_cast<T&>(t);
+	}
+
+
+struct DataGeneratorsTest : public Test
+	{
+	DataGeneratorsTest() : Test("DataGeneratorsTest.h")
+		{}
+	virtual void execute(TestResult& result)
+		{
+		this->printName(result);
+		
+		using namespace Loki;
+		using namespace Loki::TL;
+		
+		bool b;
+		typedef MakeTypelist<>::Result null_tl;
+		typedef MakeTypelist<char,
+		                     unsigned char,
+		                     signed char,
+		                     wchar_t>::Result char_types;
+		int n = Length<char_types>::value;
+		
+		std::vector<const char*> names;
+		names.reserve(n);
+		//Some fascist decided that all temporaries should be const.
+		//The following line of code stupidity is a direct result of the half-baked idea
+		iterate_types<char_types, name_from_type>(remove_const(std::back_inserter(names)));
+		b = names.size() == n;
+		testAssert("iterate_types - Check Length", b, result);
+		
+		std::vector<size_t> sizes;
+		sizes.reserve(n);
+		typedef MakeTypelist<char,
+		                     short,
+		                     int,
+		                     double>::Result some_types;
+		iterate_types<some_types, sizeof_type>(remove_const(std::back_inserter(sizes)));
+		size_t apriori_size[] = {sizeof(char), sizeof(short), sizeof(int), sizeof(double)};
+		b = true;
+		for(int i=0; i<n; ++i)
+			b &= sizes[i] == apriori_size[i];
+		testAssert("iterate_types - Check Elements", b, result);
+		
+		sizes.resize(0);
+		iterate_types<null_tl, sizeof_type>(sizes);
+		b = sizes.size() == 0;
+		testAssert("iterate_types - Degenerate Case 1 - Null List", b, result);
+
+		sizes.resize(0);
+		iterate_types<Loki::NullType, sizeof_type>(sizes);
+		b = sizes.size() == 0;
+		testAssert("iterate_types - Degenerate Case 2 - NullType", b, result);
+		}
+	};
+
+#endif //DATAGENERATORSTEST_H