diff options
Diffstat (limited to 'libgo/go/ebnf/ebnf_test.go')
-rw-r--r-- | libgo/go/ebnf/ebnf_test.go | 77 |
1 files changed, 77 insertions, 0 deletions
diff --git a/libgo/go/ebnf/ebnf_test.go b/libgo/go/ebnf/ebnf_test.go new file mode 100644 index 000000000..bbe530c27 --- /dev/null +++ b/libgo/go/ebnf/ebnf_test.go @@ -0,0 +1,77 @@ +// 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) + } +} |