Function parseExpectError

pkg/sql/parser/uat_bugs_test.go:43–61

--------------------------------------------------------------------------- Bug 1 - Error positions (HIGH) Every parser error used to say "line 0, column 0" regardless of position. ParseFromModelTokens now uses convertModelTokensWithPositions internally. ---------------------------------------------

(t *testing.T, sql string)

// parseExpectError is a test helper that tokenises + parses and expects an
// error to be returned.
func parseExpectError(t *testing.T, sql string) error {
	t.Helper()
	tkz := tokenizer.GetTokenizer()
	defer tokenizer.PutTokenizer(tkz)

	tokens, err := tkz.Tokenize([]byte(sql))
	if err != nil {
		t.Fatalf("tokenize unexpectedly failed: %v", err)
	}

	p := parser.GetParser()
	defer parser.PutParser(p)

	_, parseErr := p.ParseFromModelTokens(tokens)
	if parseErr == nil {
		t.Fatalf("expected parse error, but SQL parsed successfully: %s", sql)
	}
	return parseErr
}

func TestBug1_ErrorPositionNonZeroOnSimpleSyntaxError(t *testing.T) {
	// "SELECT FROM users" – missing column list; error should be on line 1 at col > 0