hopp/generate/lex_test.go

55 lines
1.4 KiB
Go

package generate
import "strings"
import "testing"
import "git.tebibyte.media/sashakoshka/goparse"
func TestLex(test *testing.T) {
lexer, err := Lex("test.pdl", strings.NewReader(`
M0001 User {
0000 Name String,
0001 Users []User,
0002 Followers U32,
}`))
if err != nil { test.Fatal(parse.Format(err)) }
correctTokens := []parse.Token {
tok(TokenMethod, "0001"),
tok(TokenIdent, "User"),
tok(TokenLBrace, "{"),
tok(TokenKey, "0000"),
tok(TokenIdent, "Name"),
tok(TokenIdent, "String"),
tok(TokenComma, ","),
tok(TokenKey, "0001"),
tok(TokenIdent, "Users"),
tok(TokenLBracket, "["),
tok(TokenRBracket, "]"),
tok(TokenIdent, "User"),
tok(TokenComma, ","),
tok(TokenKey, "0002"),
tok(TokenIdent, "Followers"),
tok(TokenIdent, "U32"),
tok(TokenComma, ","),
tok(TokenRBrace, "}"),
tok(parse.EOF, ""),
}
for index, correct := range correctTokens {
got, err := lexer.Next()
if err != nil { test.Fatal(parse.Format(err)) }
if got.Kind != correct.Kind || got.Value != correct.Value {
test.Logf("token %d mismatch", index)
test.Log("GOT:", tokenNames[got.Kind], got.Value)
test.Fatal("CORRECT:", tokenNames[correct.Kind], correct.Value)
}
}
}
func tok(kind parse.TokenKind, value string) parse.Token {
return parse.Token {
Kind: kind,
Value: value,
}
}