Files
tidb/expression/regexp_test.go
2015-09-21 18:02:27 +08:00

92 lines
2.2 KiB
Go

// Copyright 2015 PingCAP, Inc.
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// See the License for the specific language governing permissions and
// limitations under the License.
package expression
import (
"github.com/juju/errors"
. "github.com/pingcap/check"
)
var _ = Suite(&testRegexpSuite{})
type testRegexpSuite struct {
}
func (rs *testRegexpSuite) TestT(c *C) {
tbl := []struct {
pattern string
input string
match bool
}{
{"^$", "a", false},
{"a", "a", true},
{"a", "b", false},
{"aA", "aA", true},
{".", "a", true},
{"^.$", "ab", false},
{"..", "b", false},
{".ab", "aab", true},
{".*", "abcd", true},
}
for _, v := range tbl {
pattern := &PatternRegexp{
Pattern: &Value{v.pattern},
Expr: &Value{v.input},
}
match, err := pattern.Eval(nil, nil)
c.Assert(err, IsNil)
c.Assert(match.(bool), Equals, v.match, Commentf("%v", v))
}
pat := &PatternRegexp{
Pattern: &mockExpr{err: errors.Errorf("test error")},
Expr: &mockExpr{err: errors.Errorf("test error")},
}
c.Assert(pat.Clone(), NotNil)
_, err := pat.Eval(nil, nil)
c.Assert(err, NotNil)
pat.Expr = &Value{"^$"}
c.Assert(pat.Clone(), NotNil)
_, err = pat.Eval(nil, nil)
c.Assert(err, NotNil)
pat.Pattern = &Value{"a"}
c.Assert(pat.Clone(), NotNil)
_, err = pat.Eval(nil, nil)
c.Assert(err, IsNil)
c.Assert(pat.IsStatic(), IsTrue)
c.Assert(pat.String(), Not(Equals), "")
pat.Not = true
_, err = pat.Eval(nil, nil)
c.Assert(err, IsNil)
pat.Re = nil
pat.Pattern = &Value{123}
_, err = pat.Eval(nil, nil)
c.Assert(err, NotNil)
pat.Pattern = &Value{"["}
_, err = pat.Eval(nil, nil)
c.Assert(err, NotNil)
pat.Pattern = &Value{nil}
_, err = pat.Eval(nil, nil)
c.Assert(err, IsNil)
pat.Sexpr = nil
pat.Expr = &Value{123}
_, err = pat.Eval(nil, nil)
c.Assert(err, NotNil)
pat.Expr = &Value{nil}
_, err = pat.Eval(nil, nil)
c.Assert(err, IsNil)
}