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package syntax_test
import (
"io"
"reflect"
"strings"
"testing"
"github.com/tendermint/tendermint/internal/pubsub/query/syntax"
)
func TestScanner(t *testing.T) {
tests := []struct {
input string
want []syntax.Token
}{
// Empty inputs
{"", nil},
{" ", nil},
{"\t\n ", nil},
// Numbers
{`0 123`, []syntax.Token{syntax.TNumber, syntax.TNumber}},
{`0.32 3.14`, []syntax.Token{syntax.TNumber, syntax.TNumber}},
// Tags
{`foo foo.bar`, []syntax.Token{syntax.TTag, syntax.TTag}},
// Strings (values)
{` '' x 'x' 'x y'`, []syntax.Token{syntax.TString, syntax.TTag, syntax.TString, syntax.TString}},
{` 'you are not your job' `, []syntax.Token{syntax.TString}},
// Comparison operators
{`< <= = > >=`, []syntax.Token{
syntax.TLt, syntax.TLeq, syntax.TEq, syntax.TGt, syntax.TGeq,
}},
// Mixed values of various kinds.
{`x AND y`, []syntax.Token{syntax.TTag, syntax.TAnd, syntax.TTag}},
{`x.y CONTAINS 'z'`, []syntax.Token{syntax.TTag, syntax.TContains, syntax.TString}},
{`foo EXISTS`, []syntax.Token{syntax.TTag, syntax.TExists}},
{`and AND`, []syntax.Token{syntax.TTag, syntax.TAnd}},
// Timestamp
{`TIME 2021-11-23T15:16:17Z`, []syntax.Token{syntax.TTime}},
// Datestamp
{`DATE 2021-11-23`, []syntax.Token{syntax.TDate}},
}
for _, test := range tests {
s := syntax.NewScanner(strings.NewReader(test.input))
var got []syntax.Token
for s.Next() == nil {
got = append(got, s.Token())
}
if err := s.Err(); err != io.EOF {
t.Errorf("Next: unexpected error: %w", err)
}
if !reflect.DeepEqual(got, test.want) {
t.Logf("Scanner input: %q", test.input)
t.Errorf("Wrong tokens:\ngot: %+v\nwant: %+v", got, test.want)
}
}
}
func TestScannerErrors(t *testing.T) {
tests := []struct {
input string
}{
{`'incomplete string`},
{`-23`},
{`&`},
{`DATE xyz-pdq`},
{`DATE xyzp-dq-zv`},
{`DATE 0000-00-00`},
{`DATE 0000-00-000`},
{`DATE 2021-01-99`},
{`TIME 2021-01-01T34:56:78Z`},
{`TIME 2021-01-99T14:56:08Z`},
{`TIME 2021-01-99T34:56:08`},
{`TIME 2021-01-99T34:56:11+3`},
}
for _, test := range tests {
s := syntax.NewScanner(strings.NewReader(test.input))
if err := s.Next(); err == nil {
t.Errorf("Next: got %v (%#q), want error", s.Token(), s.Text())
}
}
}
// These parser tests were copied from the original implementation of the query
// parser, and are preserved here as a compatibility check.
func TestParseValid(t *testing.T) {
tests := []struct {
input string
valid bool
}{
{"tm.events.type='NewBlock'", true},
{"tm.events.type = 'NewBlock'", true},
{"tm.events.name = ''", true},
{"tm.events.type='TIME'", true},
{"tm.events.type='DATE'", true},
{"tm.events.type='='", true},
{"tm.events.type='TIME", false},
{"tm.events.type=TIME'", false},
{"tm.events.type==", false},
{"tm.events.type=NewBlock", false},
{">==", false},
{"tm.events.type 'NewBlock' =", false},
{"tm.events.type>'NewBlock'", false},
{"", false},
{"=", false},
{"='NewBlock'", false},
{"tm.events.type=", false},
{"tm.events.typeNewBlock", false},
{"tm.events.type'NewBlock'", false},
{"'NewBlock'", false},
{"NewBlock", false},
{"", false},
{"tm.events.type='NewBlock' AND abci.account.name='Igor'", true},
{"tm.events.type='NewBlock' AND", false},
{"tm.events.type='NewBlock' AN", false},
{"tm.events.type='NewBlock' AN tm.events.type='NewBlockHeader'", false},
{"AND tm.events.type='NewBlock' ", false},
{"abci.account.name CONTAINS 'Igor'", true},
{"tx.date > DATE 2013-05-03", true},
{"tx.date < DATE 2013-05-03", true},
{"tx.date <= DATE 2013-05-03", true},
{"tx.date >= DATE 2013-05-03", true},
{"tx.date >= DAT 2013-05-03", false},
{"tx.date <= DATE2013-05-03", false},
{"tx.date <= DATE -05-03", false},
{"tx.date >= DATE 20130503", false},
{"tx.date >= DATE 2013+01-03", false},
// incorrect year, month, day
{"tx.date >= DATE 0013-01-03", false},
{"tx.date >= DATE 2013-31-03", false},
{"tx.date >= DATE 2013-01-83", false},
{"tx.date > TIME 2013-05-03T14:45:00+07:00", true},
{"tx.date < TIME 2013-05-03T14:45:00-02:00", true},
{"tx.date <= TIME 2013-05-03T14:45:00Z", true},
{"tx.date >= TIME 2013-05-03T14:45:00Z", true},
{"tx.date >= TIME2013-05-03T14:45:00Z", false},
{"tx.date = IME 2013-05-03T14:45:00Z", false},
{"tx.date = TIME 2013-05-:45:00Z", false},
{"tx.date >= TIME 2013-05-03T14:45:00", false},
{"tx.date >= TIME 0013-00-00T14:45:00Z", false},
{"tx.date >= TIME 2013+05=03T14:45:00Z", false},
{"account.balance=100", true},
{"account.balance >= 200", true},
{"account.balance >= -300", false},
{"account.balance >>= 400", false},
{"account.balance=33.22.1", false},
{"slashing.amount EXISTS", true},
{"slashing.amount EXISTS AND account.balance=100", true},
{"account.balance=100 AND slashing.amount EXISTS", true},
{"slashing EXISTS", true},
{"hash='136E18F7E4C348B780CF873A0BF43922E5BAFA63'", true},
{"hash=136E18F7E4C348B780CF873A0BF43922E5BAFA63", false},
}
for _, test := range tests {
q, err := syntax.Parse(test.input)
if test.valid != (err == nil) {
t.Errorf("Parse %#q: valid %v got err=%v", test.input, test.valid, err)
}
// For valid queries, check that the query round-trips.
if test.valid {
qstr := q.String()
r, err := syntax.Parse(qstr)
if err != nil {
t.Errorf("Reparse %#q failed: %v", qstr, err)
}
if rstr := r.String(); rstr != qstr {
t.Errorf("Reparse diff\nold: %#q\nnew: %#q", qstr, rstr)
}
}
}
}