65 lines
1.7 KiB
Go
65 lines
1.7 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 implementation
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import (
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"testing"
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. "github.com/pingcap/check"
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"github.com/pingcap/parser"
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"github.com/pingcap/parser/model"
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"github.com/pingcap/tidb/infoschema"
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plannercore "github.com/pingcap/tidb/planner/core"
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"github.com/pingcap/tidb/sessionctx"
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"github.com/pingcap/tidb/util/testleak"
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)
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func TestT(t *testing.T) {
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CustomVerboseFlag = true
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TestingT(t)
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}
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var _ = Suite(&testImplSuite{})
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type testImplSuite struct {
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*parser.Parser
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is infoschema.InfoSchema
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sctx sessionctx.Context
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}
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func (s *testImplSuite) SetUpSuite(c *C) {
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testleak.BeforeTest()
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s.is = infoschema.MockInfoSchema([]*model.TableInfo{plannercore.MockSignedTable()})
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s.sctx = plannercore.MockContext()
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s.Parser = parser.New()
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}
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func (s *testImplSuite) TearDownSuite(c *C) {
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testleak.AfterTest(c)()
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}
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func (s *testImplSuite) TestBaseImplementation(c *C) {
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p := plannercore.PhysicalLimit{}.Init(s.sctx, nil, nil)
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impl := &baseImpl{plan: p}
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c.Assert(impl.GetPlan(), Equals, p)
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childCosts := []float64{5.0}
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cost := impl.CalcCost(10, childCosts, nil)
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c.Assert(cost, Equals, 5.0)
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c.Assert(impl.GetCost(), Equals, 5.0)
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impl.SetCost(6.0)
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c.Assert(impl.GetCost(), Equals, 6.0)
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}
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