mirror of
https://github.com/danog/liquid.git
synced 2024-11-27 04:46:31 +01:00
96 lines
2.4 KiB
Go
96 lines
2.4 KiB
Go
package expressions
|
|
|
|
import (
|
|
"fmt"
|
|
"testing"
|
|
|
|
"github.com/stretchr/testify/require"
|
|
)
|
|
|
|
type testSymbol struct {
|
|
tok int
|
|
typ yySymType
|
|
}
|
|
|
|
func (s testSymbol) String() string {
|
|
return fmt.Sprintf("%d:%v", s.tok, s.typ)
|
|
}
|
|
|
|
func scanExpression(data string) ([]testSymbol, error) {
|
|
var (
|
|
lex = newLexer([]byte(data))
|
|
symbols []testSymbol
|
|
s yySymType
|
|
)
|
|
for {
|
|
tok := lex.Lex(&s)
|
|
if tok == 0 {
|
|
break
|
|
}
|
|
symbols = append(symbols, testSymbol{tok, s})
|
|
}
|
|
return symbols, nil
|
|
}
|
|
|
|
func TestLex(t *testing.T) {
|
|
ts, err := scanExpression("abc > 123")
|
|
require.NoError(t, err)
|
|
require.Len(t, ts, 3)
|
|
require.Equal(t, IDENTIFIER, ts[0].tok)
|
|
require.Equal(t, "abc", ts[0].typ.name)
|
|
require.Equal(t, LITERAL, ts[2].tok)
|
|
require.Equal(t, 123, ts[2].typ.val)
|
|
|
|
// verify these don't match "for", "or", or "false"
|
|
ts, _ = scanExpression("forage")
|
|
require.Len(t, ts, 1)
|
|
ts, _ = scanExpression("orange")
|
|
require.Len(t, ts, 1)
|
|
ts, _ = scanExpression("falsehood")
|
|
require.Len(t, ts, 1)
|
|
|
|
ts, _ = scanExpression("a.b-c")
|
|
require.Len(t, ts, 2)
|
|
require.Equal(t, PROPERTY, ts[1].tok)
|
|
require.Equal(t, "b-c", ts[1].typ.name)
|
|
|
|
// literals
|
|
ts, _ = scanExpression(`true false nil 2 2.3 "abc" 'abc'`)
|
|
require.Len(t, ts, 7)
|
|
require.Equal(t, LITERAL, ts[0].tok)
|
|
require.Equal(t, LITERAL, ts[1].tok)
|
|
require.Equal(t, LITERAL, ts[2].tok)
|
|
require.Equal(t, LITERAL, ts[3].tok)
|
|
require.Equal(t, LITERAL, ts[4].tok)
|
|
require.Equal(t, LITERAL, ts[5].tok)
|
|
require.Equal(t, LITERAL, ts[6].tok)
|
|
require.Equal(t, true, ts[0].typ.val)
|
|
require.Equal(t, false, ts[1].typ.val)
|
|
require.Equal(t, nil, ts[2].typ.val)
|
|
require.Equal(t, 2, ts[3].typ.val)
|
|
require.Equal(t, 2.3, ts[4].typ.val)
|
|
require.Equal(t, "abc", ts[5].typ.val)
|
|
require.Equal(t, "abc", ts[6].typ.val)
|
|
|
|
// identifiers
|
|
ts, _ = scanExpression(`abc ab_c ab-c abc?`)
|
|
require.Len(t, ts, 4)
|
|
require.Equal(t, IDENTIFIER, ts[0].tok)
|
|
require.Equal(t, IDENTIFIER, ts[1].tok)
|
|
require.Equal(t, IDENTIFIER, ts[2].tok)
|
|
require.Equal(t, IDENTIFIER, ts[3].tok)
|
|
require.Equal(t, "abc", ts[0].typ.name)
|
|
require.Equal(t, "ab_c", ts[1].typ.name)
|
|
require.Equal(t, "ab-c", ts[2].typ.name)
|
|
require.Equal(t, "abc?", ts[3].typ.name)
|
|
|
|
ts, _ = scanExpression(`{%cycle 'a', 'b'`)
|
|
require.Len(t, ts, 4)
|
|
|
|
ts, _ = scanExpression(`%loop i in (3 .. 5)`)
|
|
require.Len(t, ts, 8)
|
|
|
|
// ts, _ = scanExpression(`%loop i in (3..5)`)
|
|
// require.Len(t, ts, 9)
|
|
}
|