Gonna start unit testing to resolve issues

scripts/test/functions.toy

@@ -0,0 +1,55 @@
+//test function return
+fn testFourtyTwo() {
+	return 42;
+}
+
+assert testFourtyTwo() == 42, "function returns failed";
+
+
+//test function parameters
+fn identity(x) {
+	return x;
+}
+
+assert identity("hello world") == "hello world", "identity function failed";
+
+
+//test closures
+fn make() {
+	var counter = 0;
+
+	fn count() {
+		return ++counter;
+	}
+
+	return count;
+}
+
+var tally = make();
+
+assert tally() == 1 && tally() == 2, "Closures failed";
+
+
+//test expressions as arguments
+fn argFn() {
+	return 42;
+}
+
+fn outerFn(val) {
+	assert val == 42, "expression as argument failed";
+}
+
+outerFn(argFn());
+
+
+//test extra parameters
+fn extra(one, two, ...rest) {
+	assert rest == ["three", "four", "five", "six", "seven"], "rest parameters failed";
+}
+
+extra("one", "two", "three", "four", "five", "six", "seven");
+
+
+
+
+print "All good";