1 files changed, 107 insertions, 0 deletions
diff --git a/modules/test/suite.cpp b/modules/test/suite.cpp
new file mode 100644
index 0000000..0fca8f9
--- /dev/null
+++ b/modules/test/suite.cpp
@@ -0,0 +1,107 @@
+#include "suite.h"
+
+#include <map>
+#include <string>
+#include <chrono>
+#include <iostream>
+
+namespace saw {
+namespace test {
+	test_case* testCaseHead = nullptr;
+	test_case** testCaseTail = &testCaseHead;
+
+	test_case::test_case(const std::string& file_, uint line_, const std::string& description_):
+		file{file_},
+		line{line_},
+		description{description_},
+		matched_filter{false},
+		next{nullptr},
+		prev{testCaseTail}
+	{
+		*prev = this;
+		testCaseTail = &next;
+	}
+
+	test_case::~test_case(){
+		*prev = next;
+		if( next == nullptr ){
+			testCaseTail = prev;
+		}else{
+			next->prev = prev;
+		}
+	}
+
+	class test_runner {
+	private:
+		enum Colour {
+			RED,
+			GREEN,
+			BLUE,
+			WHITE
+		};
+
+		void write(Colour colour, const std::string& front, const std::string& message){
+			std::string start_col, end_col;
+			switch(colour){
+				case RED: start_col = "\033[0;1;31m"; break;
+				case GREEN: start_col = "\033[0;1;32m"; break;
+				case BLUE: start_col = "\033[0;1;34m"; break;
+				case WHITE: start_col = "\033[0m"; break;
+			}
+			end_col = "\033[0m";
+			std::cout<<start_col<<front<<end_col<<message<<'\n';
+		}	
+	public:
+		void allowAll(){
+			for(test_case* testCase = testCaseHead; testCase != nullptr; testCase = testCase->next){
+				testCase->matched_filter = true;
+			}
+		}
+
+		int run() {
+			size_t passed_count = 0;
+			size_t failed_count = 0;
+			
+			for(test_case* testCase = testCaseHead; testCase != nullptr; testCase =testCase->next){
+				if(testCase->matched_filter){
+					std::string name = testCase->file + std::string(":") + std::to_string(testCase->line) + std::string(": ") + testCase->description;
+					write(BLUE, "[ TEST ] ", name);
+					bool failed = true;
+					std::string fail_message;
+					auto start_clock = std::chrono::steady_clock::now();
+					try {
+						testCase->run();
+						failed = false;
+					}catch(std::exception& e){
+						fail_message = e.what();
+						failed = true;
+					}
+					auto stop_clock = std::chrono::steady_clock::now();
+
+					auto runtime_duration_intern = stop_clock - start_clock;
+					auto runtime_duration = std::chrono::duration_cast<std::chrono::microseconds>(runtime_duration_intern);
+					std::string message = name + std::string(" (") + std::to_string(runtime_duration.count()) + std::string(" µs)");
+					if(failed){
+						write(RED, "[ FAIL ] ", message + " " + fail_message);
+						++failed_count;
+					}else{
+						write(GREEN, "[ PASS ] ", message);
+						++passed_count;
+					}
+				}
+			}
+
+			if(passed_count>0) write(GREEN, std::to_string(passed_count) + std::string(" test(s) passed"), "");
+			if(failed_count>0) write(RED, std::to_string(failed_count) + std::string(" test(s) failed"), "");
+			return -failed_count;
+		}
+	};
+}
+}
+
+int main() {
+	saw::test::test_runner runner;
+	runner.allowAll();
+	int rv = runner.run();
+	return rv<0?-1:0;
+}