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// Copyright 2009 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
package ebnf
import (
"go/token"
"io/ioutil"
"testing"
)
var fset = token.NewFileSet()
var grammars = []string{
`Program = .
`,
`Program = foo .
foo = "foo" .
`,
`Program = "a" | "b" "c" .
`,
`Program = "a" ... "z" .
`,
`Program = Song .
Song = { Note } .
Note = Do | (Re | Mi | Fa | So | La) | Ti .
Do = "c" .
Re = "d" .
Mi = "e" .
Fa = "f" .
So = "g" .
La = "a" .
Ti = ti .
ti = "b" .
`,
}
func check(t *testing.T, filename string, src []byte) {
grammar, err := Parse(fset, filename, src)
if err != nil {
t.Errorf("Parse(%s) failed: %v", src, err)
}
if err = Verify(fset, grammar, "Program"); err != nil {
t.Errorf("Verify(%s) failed: %v", src, err)
}
}
func TestGrammars(t *testing.T) {
for _, src := range grammars {
check(t, "", []byte(src))
}
}
var files = []string{
// TODO(gri) add some test files
}
func TestFiles(t *testing.T) {
for _, filename := range files {
src, err := ioutil.ReadFile(filename)
if err != nil {
t.Fatal(err)
}
check(t, filename, src)
}
}
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