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// Copyright 2017 syzkaller project authors. All rights reserved.
// Use of this source code is governed by Apache 2 LICENSE that can be found in the LICENSE file.
package ast
import (
"bytes"
"io/ioutil"
"path/filepath"
"reflect"
"strings"
"testing"
)
func TestParseAll(t *testing.T) {
files, err := filepath.Glob(filepath.Join("..", "..", "sys", "linux", "*.txt"))
if err != nil || len(files) == 0 {
t.Fatalf("failed to read sys dir: %v", err)
}
for _, file := range files {
data, err := ioutil.ReadFile(file)
if err != nil {
t.Fatalf("failed to read file: %v", err)
}
t.Run(file, func(t *testing.T) {
eh := func(pos Pos, msg string) {
t.Fatalf("%v: %v", pos, msg)
}
desc := Parse(data, file, eh)
if desc == nil {
t.Fatalf("parsing failed, but no error produced")
}
data2 := Format(desc)
desc2 := Parse(data2, file, eh)
if desc2 == nil {
t.Fatalf("parsing failed, but no error produced")
}
if len(desc.Nodes) != len(desc2.Nodes) {
t.Fatalf("formatting number of top level decls: %v/%v",
len(desc.Nodes), len(desc2.Nodes))
}
for i := range desc.Nodes {
n1, n2 := desc.Nodes[i], desc2.Nodes[i]
if n1 == nil {
t.Fatalf("got nil node")
}
if !reflect.DeepEqual(n1, n2) {
t.Fatalf("formatting changed code:\n%#v\nvs:\n%#v", n1, n2)
}
}
data3 := Format(Clone(desc))
if !bytes.Equal(data, data3) {
t.Fatalf("Clone lost data")
}
})
}
}
func TestParse(t *testing.T) {
for _, test := range parseTests {
t.Run(test.name, func(t *testing.T) {
errorHandler := func(pos Pos, msg string) {
t.Logf("%v: %v", pos, msg)
}
Parse([]byte(test.input), "foo", errorHandler)
})
}
}
var parseTests = []struct {
name string
input string
result []interface{}
}{
{
"empty",
``,
[]interface{}{},
},
{
"new-line",
`
`,
[]interface{}{},
},
{
"nil",
"\x00",
[]interface{}{},
},
}
func TestErrors(t *testing.T) {
files, err := ioutil.ReadDir("testdata")
if err != nil {
t.Fatal(err)
}
if len(files) == 0 {
t.Fatal("no input files")
}
for _, f := range files {
if !strings.HasSuffix(f.Name(), ".txt") {
continue
}
name := f.Name()
t.Run(name, func(t *testing.T) {
em := NewErrorMatcher(t, filepath.Join("testdata", name))
desc := Parse(em.Data, name, em.ErrorHandler)
if desc != nil && em.Count() != 0 {
em.DumpErrors(t)
t.Fatalf("parsing succeed, but got errors")
}
if desc == nil && em.Count() == 0 {
t.Fatalf("parsing failed, but got no errors")
}
em.Check(t)
})
}
}
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