Fixing bug in url query reader and added test cases

pkg/util/validation_test.go

@@ -0,0 +1,22 @@
+package util
+
+import (
+	"testing"
+
+	. "github.com/smartystreets/goconvey/convey"
+)
+
+func TestIsEmail(t *testing.T) {
+
+	Convey("When validating a string that is a valid email", t, func() {
+		result := IsEmail("abc@def.com")
+
+		So(result, ShouldEqual, true)
+	})
+
+	Convey("When validating a string that is not a valid email", t, func() {
+		result := IsEmail("abcdef.com")
+
+		So(result, ShouldEqual, false)
+	})
+}