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tokenizer_test.go
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package xmltokenizer_test
import (
"bytes"
"errors"
"fmt"
"io"
"io/fs"
"math"
"os"
"path/filepath"
"strings"
"testing"
"github.com/google/go-cmp/cmp"
"github.com/muktihari/xmltokenizer"
"github.com/muktihari/xmltokenizer/internal/gpx"
"github.com/muktihari/xmltokenizer/internal/xlsx"
"github.com/muktihari/xmltokenizer/internal/xlsx/schema"
)
var tokenHeader = xmltokenizer.Token{Data: []byte(`<?xml version="1.0" encoding="UTF-8"?>`), SelfClosing: true}
func TestTokenWithInmemXML(t *testing.T) {
tt := []struct {
name string
xml string
expecteds []xmltokenizer.Token
err error
}{
{
name: "dtd without entity",
xml: `
<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN"
"http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<body xmlns:foo="ns1" xmlns="ns2" xmlns:tag="ns3" ` +
"\r\n\t" + ` >
<hello lang="en">World <>'" 白鵬翔</hello>
<query>&何; &is-it;</query>
<goodbye />
<outer foo:attr="value" xmlns:tag="ns4">
<inner/>
</outer>
<tag:name>
<![CDATA[Some text here.]]>
</tag:name>
</body><!-- missing final newline -->`, // Note: retrieved from stdlib xml test.
expecteds: []xmltokenizer.Token{
{
Data: []byte(`<?xml version="1.0" encoding="UTF-8"?>`),
SelfClosing: true,
},
{
Data: []byte("<!DOCTYPE html PUBLIC \"-//W3C//DTD XHTML 1.0 Transitional//EN\"\n" +
" \"http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd\">"),
SelfClosing: true,
},
{
Name: xmltokenizer.Name{Local: []byte("body"), Full: []byte("body")},
Attrs: []xmltokenizer.Attr{
{Name: xmltokenizer.Name{Prefix: []byte("xmlns"), Local: []byte("foo"), Full: []byte("xmlns:foo")}, Value: []byte("ns1")},
{Name: xmltokenizer.Name{Local: []byte("xmlns"), Full: []byte("xmlns")}, Value: []byte("ns2")},
{Name: xmltokenizer.Name{Prefix: []byte("xmlns"), Local: []byte("tag"), Full: []byte("xmlns:tag")}, Value: []byte("ns3")},
},
},
{
Name: xmltokenizer.Name{Local: []byte("hello"), Full: []byte("hello")},
Attrs: []xmltokenizer.Attr{
{Name: xmltokenizer.Name{Local: []byte("lang"), Full: []byte("lang")}, Value: []byte("en")},
},
Data: []byte("World <>'" 白鵬翔"),
},
{
Name: xmltokenizer.Name{Local: []byte("hello"), Full: []byte("hello")},
IsEndElement: true,
},
{
Name: xmltokenizer.Name{Local: []byte("query"), Full: []byte("query")},
Data: []byte("&何; &is-it;"),
},
{
Name: xmltokenizer.Name{Local: []byte("query"), Full: []byte("query")},
IsEndElement: true,
},
{
Name: xmltokenizer.Name{Local: []byte("goodbye"), Full: []byte("goodbye")},
SelfClosing: true,
},
{
Name: xmltokenizer.Name{Local: []byte("outer"), Full: []byte("outer")},
Attrs: []xmltokenizer.Attr{
{Name: xmltokenizer.Name{Prefix: []byte("foo"), Local: []byte("attr"), Full: []byte("foo:attr")}, Value: []byte("value")},
{Name: xmltokenizer.Name{Prefix: []byte("xmlns"), Local: []byte("tag"), Full: []byte("xmlns:tag")}, Value: []byte("ns4")},
},
},
{
Name: xmltokenizer.Name{Local: []byte("inner"), Full: []byte("inner")},
SelfClosing: true,
},
{
Name: xmltokenizer.Name{Local: []byte("outer"), Full: []byte("outer")},
IsEndElement: true,
},
{
Name: xmltokenizer.Name{Prefix: []byte("tag"), Local: []byte("name"), Full: []byte("tag:name")},
Data: []byte("Some text here."),
},
{
Name: xmltokenizer.Name{Prefix: []byte("tag"), Local: []byte("name"), Full: []byte("tag:name")},
IsEndElement: true,
},
{
Name: xmltokenizer.Name{Local: []byte("body"), Full: []byte("body")},
IsEndElement: true,
},
{
Data: []byte("<!-- missing final newline -->"),
SelfClosing: true,
},
},
},
{
name: "unexpected EOF truncated XML after `<!`",
xml: "<?xml version=\"1.0\" encoding=\"UTF-8\"?><!",
expecteds: []xmltokenizer.Token{
{
Data: []byte(`<?xml version="1.0" encoding="UTF-8"?>`),
SelfClosing: true,
},
},
err: io.ErrUnexpectedEOF,
},
{
name: "unexpected quote before attr name",
xml: "<?xml version=\"1.0\" encoding=\"UTF-8\"?><a =\"ns2\"></a>",
expecteds: []xmltokenizer.Token{
{
Data: []byte(`<?xml version="1.0" encoding="UTF-8"?>`),
SelfClosing: true,
},
{Name: xmltokenizer.Name{Local: []byte("a"), Full: []byte("a")}},
{Name: xmltokenizer.Name{Local: []byte("a"), Full: []byte("a")}, IsEndElement: true},
},
},
{
name: "unexpected equals in attr name",
xml: "<?xml version=\"1.0\" encoding=\"UTF-8\"?><Image URL=\"https://test.com/my-url-ending-in-=\" URL2=\"https://ok.com\"/>",
expecteds: []xmltokenizer.Token{
{
Data: []byte(`<?xml version="1.0" encoding="UTF-8"?>`),
SelfClosing: true,
IsEndElement: false,
},
{Name: xmltokenizer.Name{Local: []byte("Image"), Full: []byte("Image")},
Attrs: []xmltokenizer.Attr{
{
Name: xmltokenizer.Name{Local: []uint8("URL"), Full: []uint8("URL")},
Value: []uint8("https://test.com/my-url-ending-in-="),
},
{
Name: xmltokenizer.Name{Local: []uint8("URL2"), Full: []uint8("URL2")},
Value: []uint8("https://ok.com"),
},
},
SelfClosing: true,
},
},
},
{
name: "tab after node name",
xml: `<sample foo="bar"/>`,
expecteds: []xmltokenizer.Token{
{
Name: xmltokenizer.Name{
Local: []uint8("sample"),
Full: []uint8("sample"),
},
Attrs: []xmltokenizer.Attr{
{
Name: xmltokenizer.Name{
Local: []uint8("foo"),
Full: []uint8("foo")},
Value: []uint8("bar"),
},
},
SelfClosing: true,
},
},
},
{
name: "tab after attribute value",
xml: `<sample foo="bar" />`,
expecteds: []xmltokenizer.Token{
{
Name: xmltokenizer.Name{
Local: []uint8("sample"),
Full: []uint8("sample"),
},
Attrs: []xmltokenizer.Attr{
{
Name: xmltokenizer.Name{
Local: []uint8("foo"),
Full: []uint8("foo")},
Value: []uint8("bar"),
},
},
SelfClosing: true,
},
},
},
{
name: "tab between attributes",
xml: `<sample foo="bar" baz="quux"/>`,
expecteds: []xmltokenizer.Token{
{
Name: xmltokenizer.Name{
Local: []uint8("sample"),
Full: []uint8("sample"),
},
Attrs: []xmltokenizer.Attr{
{
Name: xmltokenizer.Name{
Local: []uint8("foo"),
Full: []uint8("foo")},
Value: []uint8("bar"),
},
{
Name: xmltokenizer.Name{
Local: []uint8("baz"),
Full: []uint8("baz")},
Value: []uint8("quux"),
},
},
SelfClosing: true,
},
},
},
}
for i, tc := range tt {
t.Run(fmt.Sprintf("[%d]: %s", i, tc.name), func(t *testing.T) {
tok := xmltokenizer.New(
bytes.NewReader([]byte(tc.xml)),
xmltokenizer.WithReadBufferSize(1), // Read per char so we can cover more code paths
)
for i := 0; ; i++ {
token, err := tok.Token()
if err == io.EOF {
if i != len(tc.expecteds) {
t.Fatalf("expected %d tokens, got %d", len(tc.expecteds), i)
}
break
}
if err != nil {
if !errors.Is(err, tc.err) {
t.Fatalf("expected error: %v, got: %v", tc.err, err)
}
return
}
if diff := cmp.Diff(token, tc.expecteds[i]); diff != "" {
t.Fatalf("%d: %s", i, diff)
}
}
})
}
}
func TestTokenWithSmallXMLFiles(t *testing.T) {
tt := []struct {
filename string
expecteds []xmltokenizer.Token
err error
}{
{filename: "cdata.xml", expecteds: []xmltokenizer.Token{
tokenHeader,
{Name: xmltokenizer.Name{Local: []byte("content"), Full: []byte("content")}},
{
Name: xmltokenizer.Name{Local: []byte("data"), Full: []byte("data")},
Data: []byte("text"),
},
{
Name: xmltokenizer.Name{Local: []byte("data"), Full: []byte("data")},
IsEndElement: true,
},
{
Name: xmltokenizer.Name{Local: []byte("data"), Full: []byte("data")},
Data: []byte("<element>text</element>"),
},
{
Name: xmltokenizer.Name{Local: []byte("data"), Full: []byte("data")},
IsEndElement: true,
},
{
Name: xmltokenizer.Name{Local: []byte("data"), Full: []byte("data")},
Data: []byte("<element>text</element>"),
},
{
Name: xmltokenizer.Name{Local: []byte("data"), Full: []byte("data")},
IsEndElement: true,
},
{
Name: xmltokenizer.Name{Local: []byte("content"), Full: []byte("content")},
IsEndElement: true,
},
}},
{filename: "cdata_clrf.xml", expecteds: []xmltokenizer.Token{
tokenHeader,
{Name: xmltokenizer.Name{Local: []byte("content"), Full: []byte("content")}},
{
Name: xmltokenizer.Name{Local: []byte("data"), Full: []byte("data")},
Data: []byte("text"),
},
{
Name: xmltokenizer.Name{Local: []byte("data"), Full: []byte("data")},
IsEndElement: true,
},
{
Name: xmltokenizer.Name{Local: []byte("data"), Full: []byte("data")},
Data: []byte("<element>text</element>"),
},
{
Name: xmltokenizer.Name{Local: []byte("data"), Full: []byte("data")},
IsEndElement: true,
},
{
Name: xmltokenizer.Name{Local: []byte("data"), Full: []byte("data")},
Data: []byte("<element>text</element>"),
},
{
Name: xmltokenizer.Name{Local: []byte("data"), Full: []byte("data")},
IsEndElement: true,
},
{
Name: xmltokenizer.Name{Local: []byte("content"), Full: []byte("content")},
IsEndElement: true,
},
}},
{filename: filepath.Join("corrupted", "cdata_truncated.xml"), expecteds: []xmltokenizer.Token{
tokenHeader,
{Name: xmltokenizer.Name{Local: []byte("content"), Full: []byte("content")}},
{
Name: xmltokenizer.Name{Local: []byte("data"), Full: []byte("data")},
},
},
err: io.ErrUnexpectedEOF,
},
{filename: "self_closing.xml", expecteds: []xmltokenizer.Token{
tokenHeader,
{Name: xmltokenizer.Name{Local: []byte("a"), Full: []byte("a")}, SelfClosing: true},
{Name: xmltokenizer.Name{Local: []byte("b"), Full: []byte("b")}, SelfClosing: true},
}},
{filename: "copyright_header.xml", expecteds: []xmltokenizer.Token{
{Data: []byte("<!--\n Copyright 2024 Example Licence Authors.\n-->"), SelfClosing: true},
tokenHeader,
}},
{filename: "dtd.xml", expecteds: []xmltokenizer.Token{
tokenHeader,
{
Data: []byte("<!DOCTYPE note [\n" +
" <!ENTITY nbsp \" \">\n" +
" <!ENTITY writer \"Writer: Donald Duck.\">\n" +
" <!ENTITY copyright \"Copyright: W3Schools.\">\n" +
"]>"),
SelfClosing: true,
},
{Name: xmltokenizer.Name{Local: []byte("note"), Full: []byte("note")}},
{Name: xmltokenizer.Name{Local: []byte("to"), Full: []byte("to")}, Data: []byte("Tove")},
{Name: xmltokenizer.Name{Local: []byte("to"), Full: []byte("to")}, IsEndElement: true},
{Name: xmltokenizer.Name{Local: []byte("from"), Full: []byte("from")}, Data: []byte("Jani")},
{Name: xmltokenizer.Name{Local: []byte("from"), Full: []byte("from")}, IsEndElement: true},
{Name: xmltokenizer.Name{Local: []byte("heading"), Full: []byte("heading")}, Data: []byte("Reminder")},
{Name: xmltokenizer.Name{Local: []byte("heading"), Full: []byte("heading")}, IsEndElement: true},
{Name: xmltokenizer.Name{Local: []byte("body"), Full: []byte("body")}, Data: []byte("Don't forget me this weekend!")},
{Name: xmltokenizer.Name{Local: []byte("body"), Full: []byte("body")}, IsEndElement: true},
{Name: xmltokenizer.Name{Local: []byte("footer"), Full: []byte("footer")}, Data: []byte("&writer; ©right;")},
{Name: xmltokenizer.Name{Local: []byte("footer"), Full: []byte("footer")}, IsEndElement: true},
{Name: xmltokenizer.Name{Local: []byte("note"), Full: []byte("note")}, IsEndElement: true},
}},
}
for i, tc := range tt {
t.Run(fmt.Sprintf("[%d], %s", i, tc.filename), func(t *testing.T) {
path := filepath.Join("testdata", tc.filename)
f, err := os.Open(path)
if err != nil {
panic(err)
}
defer f.Close()
tok := xmltokenizer.New(f, xmltokenizer.WithReadBufferSize(1))
for i := 0; ; i++ {
token, err := tok.Token()
if err == io.EOF {
break
}
if err != nil {
if !errors.Is(err, tc.err) {
t.Fatalf("expected error: %v, got: %v", tc.err, err)
}
return
}
if diff := cmp.Diff(token, tc.expecteds[i]); diff != "" {
t.Fatal(diff)
}
}
})
}
}
func TestTokenOnGPXFiles(t *testing.T) {
filepath.Walk("testdata", func(path string, info fs.FileInfo, _ error) error {
t.Run(path, func(t *testing.T) {
if info.IsDir() {
return
}
if strings.ToLower(filepath.Ext(path)) != ".gpx" {
return
}
data, err := os.ReadFile(path)
if err != nil {
t.Skip(err)
}
gpx1, err := gpx.UnmarshalWithXMLTokenizer(bytes.NewReader(data))
if err != nil {
t.Fatalf("xmltokenizer: %v", err)
}
gpx2, err := gpx.UnmarshalWithStdlibXML(bytes.NewReader(data))
if err != nil {
t.Fatalf("xml: %v", err)
}
if diff := cmp.Diff(gpx1, gpx2,
cmp.Transformer("float64", func(x float64) uint64 {
return math.Float64bits(x)
}),
); diff != "" {
t.Fatal(diff)
}
})
return nil
})
}
func TestTokenOnXLSXFiles(t *testing.T) {
path := filepath.Join("testdata", "xlsx_sheet1.xml")
data, err := os.ReadFile(path)
if err != nil {
t.Skip(err)
}
sheet1, err := xlsx.UnmarshalWithXMLTokenizer(bytes.NewReader(data))
if err != nil {
t.Fatalf("xmltokenizer: %v", err)
}
sheet2, err := xlsx.UnmarshalWithStdlibXML(bytes.NewReader(data))
if err != nil {
t.Fatalf("xml: %v", err)
}
if diff := cmp.Diff(sheet1, sheet2); diff != "" {
t.Fatal(diff)
}
}
func TestAutoGrowBufferCorrectness(t *testing.T) {
path := filepath.Join("testdata", "xlsx_sheet1.xml")
f, err := os.Open(path)
if err != nil {
panic(err)
}
defer f.Close()
tok := xmltokenizer.New(f,
xmltokenizer.WithReadBufferSize(1),
)
var token xmltokenizer.Token
var sheetData1 schema.SheetData
loop:
for {
token, err = tok.Token()
if err == io.EOF {
break
}
if err != nil {
t.Fatal(err)
}
switch string(token.Name.Local) {
case "sheetData":
se := xmltokenizer.GetToken().Copy(token)
err = sheetData1.UnmarshalToken(tok, se)
xmltokenizer.PutToken(se)
if err != nil {
t.Fatal(err)
}
break loop
}
}
f2, err := os.Open(path)
if err != nil {
panic(err)
}
defer f2.Close()
sheetData2, err := xlsx.UnmarshalWithStdlibXML(f2)
if err != nil {
t.Fatal(err)
}
if diff := cmp.Diff(sheetData1, sheetData2); diff != "" {
t.Fatal(err)
}
}
func TestRawTokenWithInmemXML(t *testing.T) {
tt := []struct {
name string
xml string
expecteds []string
err error
}{
{
name: "simple xml happy flow",
xml: `<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN"
"http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<body xmlns:foo="ns1" xmlns="ns2" xmlns:tag="ns3" ` +
"\r\n\t" + ` >
<hello lang="en">World <>'" 白鵬翔</hello>
<query>&何; &is-it;</query>
<goodbye />
<outer foo:attr="value" xmlns:tag="ns4">
<inner/>
</outer>
<tag:name>
<![CDATA[Some text here.]]>
</tag:name>
</body><!-- missing final newline -->`, // Note: retrieved from stdlib xml test.
expecteds: []string{
"<?xml version=\"1.0\" encoding=\"UTF-8\"?>",
"<!DOCTYPE html PUBLIC \"-//W3C//DTD XHTML 1.0 Transitional//EN\"\n" +
" \"http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd\">",
"<body xmlns:foo=\"ns1\" xmlns=\"ns2\" xmlns:tag=\"ns3\" " +
"\r\n\t" + " >",
"<hello lang=\"en\">World <>'" 白鵬翔",
"</hello>",
"<query>&何; &is-it;",
"</query>",
"<goodbye />",
"<outer foo:attr=\"value\" xmlns:tag=\"ns4\">",
"<inner/>",
"</outer>",
"<tag:name>\n <![CDATA[Some text here.]]>",
"</tag:name>",
"</body>",
"<!-- missing final newline -->",
},
},
{
name: "unexpected EOF truncated XML after `<!`",
xml: "<?xml version=\"1.0\" encoding=\"UTF-8\"?><!",
expecteds: []string{
"<?xml version=\"1.0\" encoding=\"UTF-8\"?>",
"<!",
},
err: io.ErrUnexpectedEOF,
},
}
for i, tc := range tt {
t.Run(fmt.Sprintf("[%d]: %s", i, tc.name), func(t *testing.T) {
tok := xmltokenizer.New(
bytes.NewReader([]byte(tc.xml)),
xmltokenizer.WithReadBufferSize(1), // Read per char so we can cover more code paths
)
for i := 0; ; i++ {
token, err := tok.RawToken()
if err == io.EOF {
break
}
if err != nil {
if !errors.Is(err, tc.err) {
t.Fatalf("expected error: %v, got: %v", tc.err, err)
}
return
}
if diff := cmp.Diff(string(token), tc.expecteds[i]); diff != "" {
t.Fatal(diff)
}
}
})
}
t.Run("with prior error", func(t *testing.T) {
// Test in case RawToken() is reinvoked when there is prior error.
tok := xmltokenizer.New(bytes.NewReader([]byte{}))
token, err := tok.RawToken()
if err != io.EOF {
t.Fatalf("expected error: %v, got: %v", io.EOF, err)
}
_ = token
token, err = tok.RawToken() // Reinvoke
if err != io.EOF {
t.Fatalf("expected error: %v, got: %v", io.EOF, err)
}
_ = token
})
}