test(printif): add tests and solutions

Author: zainabdnaya

solutions/printif.go

@@ -0,0 +1,9 @@
+package solutions
+
+func PrintIf(arg string) string {
+	if len(arg) == 0 || len(arg) < 3 {
+		return "Invalid Output\n"
+	} else {
+		return "G\n"
+	}
+}

tests/printif_test/main.go

@@ -0,0 +1,15 @@
+package main
+
+import (
+	student "student"
+
+	"github.com/01-edu/go-tests/lib/challenge"
+	"github.com/01-edu/go-tests/solutions"
+)
+
+func main() {
+	table := []string{"First78last", "     ", " 280jsl", "he", "", "honey!", "Z", "email123@live.fr", "w45m$", "-552", "474abc", "<=>"}
+	for _, s := range table {
+		challenge.Function("PrintIf", student.PrintIf, solutions.PrintIf, s)
+	}
+}