WIP: Retreived the unit tests (formerly test cases)

Some of these still work, others have just been dummied out for now.

Also added tests for console colors tool, and tweaked it to work
properly.

tests/units/test_print.c

@@ -0,0 +1,167 @@
+#include "toy_print.h"
+#include "toy_console_colors.h"
+
+#include <stdio.h>
+
+int counter = 0;
+
+void counterCallback(const char* msg) {
+	(void)msg;
+	counter++;
+}
+
+int test_callbacks(void) {
+	//set a custom print callback, invoke it, and reset
+	{
+		//setup
+		Toy_setPrintCallback(counterCallback);
+
+		//invoke
+		Toy_print("");
+
+		//check
+		if (counter != 1) {
+			fprintf(stderr, TOY_CC_ERROR "ERROR: Failed to set print callback\n" TOY_CC_RESET);
+			return -1;
+		}
+
+		//reset and retry
+		Toy_resetPrintCallback();
+		Toy_print("");
+
+		if (counter != 1) {
+			fprintf(stderr, TOY_CC_ERROR "ERROR: Failed to reset print callback\n" TOY_CC_RESET);
+			return -1;
+		}
+
+		//cleanup
+		counter = 0;
+	}
+
+	//set a custom error callback, invoke it, and reset
+	{
+		//setup
+		Toy_setErrorCallback(counterCallback);
+
+		//invoke
+		Toy_error("");
+
+		//check
+		if (counter != 1) {
+			fprintf(stderr, TOY_CC_ERROR "ERROR: Failed to set error callback\n" TOY_CC_RESET);
+			return -1;
+		}
+
+		//reset and retry
+		Toy_resetErrorCallback();
+		Toy_error("");
+
+		if (counter != 1) {
+			fprintf(stderr, TOY_CC_ERROR "ERROR: Failed to reset error callback\n" TOY_CC_RESET);
+			return -1;
+		}
+
+		//cleanup
+		counter = 0;
+	}
+
+	//set a custom assert failure callback, invoke it, and reset
+	{
+		//setup
+		Toy_setAssertFailureCallback(counterCallback);
+
+		//invoke
+		Toy_assertFailure("");
+
+		//check
+		if (counter != 1) {
+			fprintf(stderr, TOY_CC_ERROR "ERROR: Failed to set assert failure callback\n" TOY_CC_RESET);
+			return -1;
+		}
+
+		//reset and retry
+		Toy_resetAssertFailureCallback();
+		Toy_assertFailure("");
+
+		if (counter != 1) {
+			fprintf(stderr, TOY_CC_ERROR "ERROR: Failed to reset assert failure callback\n" TOY_CC_RESET);
+			return -1;
+		}
+
+		//cleanup
+		counter = 0;
+	}
+
+	return 0;
+}
+
+int test_console_colors(void) {
+	//test each font color
+	{
+#define TEST_FONT(value) printf("\033[" value "m" #value TOY_CC_RESET "\n")
+		TEST_FONT(TOY_CC_FONT_BLACK);
+		TEST_FONT(TOY_CC_FONT_RED);
+		TEST_FONT(TOY_CC_FONT_GREEN);
+		TEST_FONT(TOY_CC_FONT_YELLOW);
+		TEST_FONT(TOY_CC_FONT_BLUE);
+		TEST_FONT(TOY_CC_FONT_MAGENTA);
+		TEST_FONT(TOY_CC_FONT_CYAN);
+		TEST_FONT(TOY_CC_FONT_WHITE);
+		TEST_FONT(TOY_CC_FONT_DEFAULT);
+#undef TEST_FONT
+	}
+
+	//test each background color
+	{
+#define TEST_BACK(value) printf("\033[" value "m" #value TOY_CC_RESET "\n")
+		TEST_BACK(TOY_CC_BACK_BLACK);
+		TEST_BACK(TOY_CC_BACK_RED);
+		TEST_BACK(TOY_CC_BACK_GREEN);
+		TEST_BACK(TOY_CC_BACK_YELLOW);
+		TEST_BACK(TOY_CC_BACK_BLUE);
+		TEST_BACK(TOY_CC_BACK_MAGENTA);
+		TEST_BACK(TOY_CC_BACK_CYAN);
+		TEST_BACK(TOY_CC_BACK_WHITE);
+		TEST_BACK(TOY_CC_BACK_DEFAULT);
+#undef TEST_BACK
+	}
+
+	//test the commonly used shorthands
+	{
+#define TEST_MACRO(value) printf(value #value TOY_CC_RESET "\n")
+		TEST_MACRO(TOY_CC_DEBUG);
+		TEST_MACRO(TOY_CC_NOTICE);
+		TEST_MACRO(TOY_CC_WARN);
+		TEST_MACRO(TOY_CC_ERROR);
+		TEST_MACRO(TOY_CC_ASSERT);
+		TEST_MACRO(TOY_CC_RESET);
+#undef TEST_MACRO
+	}
+
+	//This will always return zero, so it needs a visual check
+	return 0;
+}
+
+int main(void) {
+	//run each test set, returning the total errors given
+	int total = 0, res = 0;
+
+	{
+		res = test_callbacks();
+		if (res == 0) {
+			printf(TOY_CC_NOTICE "All good\n" TOY_CC_RESET);
+		}
+		total += res;
+	}
+
+	{
+		res = test_console_colors();
+		if (res == 0) {
+			printf(TOY_CC_NOTICE "All good\n" TOY_CC_RESET);
+		}
+		total += res;
+	}
+
+	return total;
+}
+