package token

import "testing"

func TestIsIdentifier(t *testing.T) {
	tests := []struct {
		name string
		in   string
		want bool
	}{
		{"Empty", "", false},
		{"Space", " ", false},
		{"SpaceSuffix", "foo ", false},
		{"Number", "123", false},
		{"Keyword", "func", false},

		{"LettersASCII", "foo", true},
		{"MixedASCII", "_bar123", true},
		{"UppercaseKeyword", "Func", true},