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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 (
"io";
"strings";
"testing";
)
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(filename, src);
if err != nil {
t.Errorf("Parse(%s) failed: %v", src, err);
}
if err = Verify(grammar, "Program"); err != nil {
t.Errorf("Verify(%s) failed: %v", src, err);
}
}
func TestGrammars(t *testing.T) {
for _, src := range grammars {
check(t, "", strings.Bytes(src));
}
}
var files = []string {
// TODO(gri) add some test files
}
func TestFiles(t *testing.T) {
for _, filename := range files {
src, err := io.ReadFile(filename);
if err != nil {
t.Fatal(err);
}
check(t, filename, src);
}
}
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