139 lines
3.2 KiB
Go
139 lines
3.2 KiB
Go
// Copyright 2015 PingCAP, Inc.
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// See the License for the specific language governing permissions and
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// limitations under the License.
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package expression_test
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import (
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. "github.com/pingcap/check"
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"github.com/pingcap/tidb/expression"
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"github.com/pingcap/tidb/model"
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"github.com/pingcap/tidb/util/mock"
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)
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var _ = Suite(&testPatternInSuite{})
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type testPatternInSuite struct {
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}
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func (t *testPatternInSuite) TestPatternIn(c *C) {
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e := &expression.PatternIn{
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Expr: expression.Value{Val: 1},
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List: []expression.Expression{expression.Value{Val: 1}, expression.Value{Val: 2}, expression.Value{Val: 3}},
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}
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ctx := mock.NewContext()
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v, err := e.Eval(ctx, nil)
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c.Assert(err, IsNil)
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c.Assert(v, IsTrue)
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c.Assert(e.IsStatic(), IsTrue)
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str := e.String()
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c.Assert(len(str), Greater, 0)
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ec := e.Clone()
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e2, ok := ec.(*expression.PatternIn)
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c.Assert(ok, IsTrue)
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vv, err := e2.Eval(ctx, nil)
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c.Assert(err, IsNil)
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c.Assert(vv, IsTrue)
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str = e2.String()
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c.Assert(len(str), Greater, 0)
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e2.List = []expression.Expression{&expression.Ident{CIStr: model.NewCIStr("c1")}, &expression.Ident{CIStr: model.NewCIStr("c2")}}
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c.Assert(e2.IsStatic(), IsFalse)
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e2.Expr = &expression.Ident{CIStr: model.NewCIStr("c1")}
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c.Assert(e2.IsStatic(), IsFalse)
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e2.Not = true
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str = e2.String()
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c.Assert(len(str), Greater, 0)
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e2.Expr = expression.Value{Val: 1}
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e2.List = []expression.Expression{expression.Value{}}
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vvv, err := e2.Eval(ctx, nil)
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c.Assert(err, IsNil)
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c.Assert(vvv, IsNil)
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e2.List = nil
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vv, err = e2.Eval(ctx, nil)
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c.Assert(err, IsNil)
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c.Assert(vv, IsTrue)
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e2.Expr = expression.Value{}
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vvv, err = e2.Eval(ctx, nil)
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c.Assert(err, IsNil)
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c.Assert(vvv, IsNil)
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sel := newMockSubQuery([][]interface{}{{1, 2}}, []string{"id", "name"})
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e2.Sel = sel
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str = e2.String()
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c.Assert(len(str), Greater, 0)
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e2.Not = false
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str = e2.String()
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c.Assert(len(str), Greater, 0)
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e2.Expr = expression.Value{Val: 1}
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args := make(map[interface{}]interface{})
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_, err = e2.Eval(ctx, args)
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c.Assert(err, NotNil)
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e2.Sel = newMockSubQuery([][]interface{}{{1}, {2}}, []string{"id"})
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vv, err = e2.Eval(ctx, args)
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c.Assert(err, IsNil)
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c.Assert(vv, IsTrue)
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e2.Sel.SetValue([]interface{}{1, 2})
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vv, err = e2.Eval(ctx, args)
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c.Assert(err, IsNil)
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c.Assert(vv, IsTrue)
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e2.Sel.SetValue(nil)
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e2.Expr = expression.NewTestRow(1, 2)
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e2.Sel = newMockSubQuery([][]interface{}{{1, 2}}, []string{"id", "name"})
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_, err = e2.Eval(ctx, args)
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c.Assert(err, IsNil)
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e2.Expr = expression.NewTestRow(1, 2, 3)
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_, err = e2.Eval(ctx, args)
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c.Assert(err, NotNil)
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e2.Sel.SetValue(nil)
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e2.Sel = nil
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e2.List = []expression.Expression{expression.NewTestRow(1, 2, 3)}
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_, err = e2.Eval(ctx, args)
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c.Assert(err, IsNil)
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e2.List = []expression.Expression{expression.Value{Val: 1}}
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_, err = e2.Eval(ctx, args)
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c.Assert(err, NotNil)
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}
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