func TestToken(t *testing.T) {
l := new(compiler.Lexer).Init("package")
tok := l.NextToken()
// fmt.Printf("%s\n", tok)
if tok.GetTokenType() != compiler.PACKAGE {
t.Fatalf("Fail : PACKAGE not found")
}
}
func TestInitLexer(t *testing.T) {
l := new(compiler.Lexer).Init("package a")
if l.GetInput() != "package a" {
t.Fatalf("l.input failed")
}
if l.GetOffset() != 1 {
t.Fatalf("l.readOffset failed != 1")
}
if l.GetCh() != 'p' {
t.Fatalf("l.readOffset failed != p")
}
}
func TestConsume(t *testing.T) {
s := "package นี้"
l := new(compiler.Lexer).Init(s)
if l.GetInput() != "package นี้" {
t.Fatalf("l.input failed")
}
str := utf8.NewString(s)
for i := 0; i < str.RuneCount(); i++ {
if l.GetOffset() != i+1 {
t.Fatalf("l.readOffset failed != " + strconv.Itoa(i+1))
}
if l.GetCh() != str.At(i) {
t.Fatalf("ch " + strconv.Itoa(l.GetCh()) + " != at " + strconv.Itoa(str.At(i)))
}
l.Consume()
}
if l.GetCh() != compiler.EOF {
t.Fatalf("EOF not found")
}
}
