package parse
import (
"testing"
)
func TestAccept(t *testing.T) {
// Accept(0) will always match :)
p0 := Accept(0)
if n, r := p0(""); !n.Matched || n.Content != "" || n.Nodes != nil || r != "" {
t.Error("Invalid result for Accept empty match test", n)
}
// Test with a non-zero amount of bytes
p := Accept(1)
if n, r := p(""); n.Matched || n.Content != "" || n.Nodes != nil || r != "" {
t.Error("Invalid result for Accept no-match test", n)
}
if n, r := p("a"); !n.Matched || n.Content != "a" || n.Nodes != nil || r != "" {
t.Error("Invalid result for Accept match test", n)
}
}
func TestK(t *testing.T) {
p := Accept(1)
k := K(p)
if n, r := k("aaa"); !n.Matched || n.Content != "aaa" || n.Nodes == nil || r != "" {
t.Error("Invalid result for K* match test", n)
}
if n, r := k(""); !n.Matched || n.Content != "" || n.Nodes != nil || r != "" {
t.Error("Invalid result for K* no-match test", n)
}
}
func TestSeq(t *testing.T) {
p1, p2 := Accept(1), Accept(1)
s := Seq(p1, p2)
if n, r := s("aa"); !n.Matched || n.Content != "aa" || n.Nodes == nil || r != "" {
t.Error("Invalid result for Seq positive test", n)
}
if n, r := s("a"); n.Matched || n.Content != "a" || n.Nodes == nil || r != "" {
t.Error("Invalid result for Seq partial match test", n)
}
if n, r := s(""); n.Matched || n.Content != "" || n.Nodes == nil || r != "" {
t.Error("Invalid result for Seq no-match test", n)
}
}
func TestAny(t *testing.T) {
p, p0 := Accept(1), Accept(0)
a := Any(p, p0)
if n, r := a(""); !n.Matched || n.Content != "" || n.Nodes != nil || r != "" {
t.Error("Invalid result for Any match test", n)
}
if n, r := a("aa"); !n.Matched || n.Content != "a" || n.Nodes != nil || r != "a" {
t.Error("Invalid result for Any match test", n)
}
}
func TestDefer(t *testing.T) {
d, dp := Defer()
*dp = Accept(1)
if n, r := d(""); n.Matched || n.Content != "" || n.Nodes != nil || r != "" {
t.Error("Invalid result for Defer no-match test", n)
}
if n, r := d("a"); !n.Matched || n.Content != "a" || n.Nodes != nil || r != "" {
t.Error("Invalid result for Defer match test", n)
}
}
func TestString(t *testing.T) {
s := String("aa")
if n, r := s("aa"); !n.Matched || n.Content != "aa" || n.Nodes != nil || r != "" {
t.Error("Invalid result for String match test", n)
}
if n, r := s("ab"); n.Matched || n.Content != "" || n.Nodes == nil || r != "ab" {
t.Error("Invalid result for String no-match test", n, r, len(r))
}
}
func TestDigit(t *testing.T) {
d := Digit()
if n, r := d("a"); n.Matched || n.Content != "" || n.Nodes == nil || r != "a" {
t.Error("Invalid result for Digit no-match test", n)
}
if n, r := d("1"); !n.Matched || n.Content != "1" || n.Nodes != nil || r != "" {
t.Error("Invalid result for Digit match test", n)
}
}