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Diffstat (limited to 'libgo/go/ebnf/ebnf_test.go')
-rw-r--r--libgo/go/ebnf/ebnf_test.go77
1 files changed, 77 insertions, 0 deletions
diff --git a/libgo/go/ebnf/ebnf_test.go b/libgo/go/ebnf/ebnf_test.go
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+++ b/libgo/go/ebnf/ebnf_test.go
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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)
+ }
+}