Improve tests

test/meson.build

@@ -1,5 +1,5 @@
-test1 = executable('RCBTest', 'RCBTest.cpp', include_directories : inc)
+test1 = executable('CTest', 'test.cpp', include_directories : inc)
 test2 = executable('VTest', 'visualTest.cpp', include_directories : inc)
 
-test('Redirect Cout Buffer', test1)
+test('Catch Tests', test1)
 test('Visual Test', test2)

test/test.cpp

@@ -0,0 +1,29 @@
+#define CATCH_CONFIG_MAIN
+#include "catch.hpp"
+
+#include "rang.hpp"
+#include <fstream>
+#include <string>
+
+TEST_CASE("Rang printing to non-terminals", "[file]")
+{
+	std::string s = "Hello World";
+
+	SECTION("output is to a file")
+	{
+		std::ofstream out("out.txt");
+		std::streambuf *coutbuf = std::cout.rdbuf();
+		std::cout.rdbuf(out.rdbuf());
+
+		std::cout << rang::fg::blue << s << rang::style::reset;
+
+		std::cout.rdbuf(coutbuf);
+		out.close();
+
+		std::ifstream in("out.txt");
+		std::string output;
+		std::getline(in, output);
+
+		REQUIRE(s == output);
+	}
+}