36 lines
1.0 KiB
Go
36 lines
1.0 KiB
Go
// Copyright 2018 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 memo
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import (
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. "github.com/pingcap/check"
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plannercore "github.com/pingcap/tidb/planner/core"
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)
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func (s *testMemoSuite) TestNewGroupExpr(c *C) {
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p := &plannercore.LogicalLimit{}
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expr := NewGroupExpr(p)
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c.Assert(expr.ExprNode, Equals, p)
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c.Assert(expr.Children, IsNil)
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c.Assert(expr.Explored, IsFalse)
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}
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func (s *testMemoSuite) TestGroupExprFingerprint(c *C) {
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p := &plannercore.LogicalLimit{}
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expr := NewGroupExpr(p)
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// we haven't set the id of the created LogicalLimit, so the result is 0.
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c.Assert(expr.FingerPrint(), Equals, "0")
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}
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