package parser import ( "fmt" "io" "os" "strings" "testing" ) func TestParseFile(t *testing.T) { s := ` html lang="en" { >head attr { >title {- My Website } meta .→{} x="y"{} } >body { >div #some-id {} div key="val" .class-1 .class-2 { p {- This is some @em{-emphatic} text } } tags key = "Some long value" {} } }` // Write the source to a temp file r := strings.NewReader(s) f, _ := os.CreateTemp("", "tmp*") defer f.Close() io.Copy(f, r) f.Seek(0, 0) ast, _ := ParseFile(f) // This is just… easier s = fmt.Sprintf("%+v", ast) result := `{Type:1 Text: Attrs:[] Children:[{Type:0 Text:html Attrs:[{Key:lang Value:en}] Children:[{Type:0 Text:head Attrs:[{Key:attr Value:}] Children:[{Type:0 Text:title Attrs:[] Children:[{Type:1 Text: Attrs:[] Children:[{Type:3 Text: My Website Attrs:[] Children:[] Newline:false}] Newline:false}] Newline:true} {Type:0 Text:meta Attrs:[{Key:class Value:→{}} {Key:x Value:y}] Children:[] Newline:false}] Newline:true} {Type:0 Text:body Attrs:[] Children:[{Type:0 Text:div Attrs:[{Key:id Value:some-id}] Children:[] Newline:true} {Type:0 Text:div Attrs:[{Key:key Value:val} {Key:class Value:class-1} {Key:class Value:class-2}] Children:[{Type:0 Text:p Attrs:[] Children:[{Type:1 Text: Attrs:[] Children:[{Type:3 Text: This is some Attrs:[] Children:[] Newline:false} {Type:0 Text:em Attrs:[] Children:[{Type:1 Text: Attrs:[] Children:[{Type:3 Text:emphatic Attrs:[] Children:[] Newline:false}] Newline:false}] Newline:false} {Type:3 Text: text Attrs:[] Children:[] Newline:false}] Newline:false}] Newline:false}] Newline:false} {Type:0 Text:tags Attrs:[{Key:key Value:Some long value}] Children:[] Newline:false}] Newline:true}] Newline:false}] Newline:false}` if s != result { t.Fatalf("ParseFile() parsed unexpected AST ‘%s’", s) } } func TestValidNameStartChar(t *testing.T) { for _, r := range "HELLO_th:re_wörld" { if !validNameStartChar(r) { t.Fatalf("validNameStartChar() returned false on valid rune ‘%c’", r) } } } func TestValidNameChar(t *testing.T) { for _, r := range "hello69-th.re-wörld" { if !validNameChar(r) { t.Fatalf("validNameChar() returned false on valid rune ‘%c’", r) } } }