github.com/whtcorpsinc/MilevaDB-Prod@v0.0.0-20211104133533-f57f4be3b597/causetstore/petri/acyclic/causet/cascades/stringer_test.go (about)

     1  // Copyright 2020 WHTCORPS INC, Inc.
     2  //
     3  // Licensed under the Apache License, Version 2.0 (the "License");
     4  // you may not use this file except in compliance with the License.
     5  // You may obtain a copy of the License at
     6  //
     7  //     http://www.apache.org/licenses/LICENSE-2.0
     8  //
     9  // Unless required by applicable law or agreed to in writing, software
    10  // distributed under the License is distributed on an "AS IS" BASIS,
    11  // See the License for the specific language governing permissions and
    12  // limitations under the License.
    13  
    14  package cascades
    15  
    16  import (
    17  	"context"
    18  
    19  	"github.com/whtcorpsinc/BerolinaSQL"
    20  	"github.com/whtcorpsinc/BerolinaSQL/perceptron"
    21  	. "github.com/whtcorpsinc/check"
    22  	causetembedded "github.com/whtcorpsinc/milevadb/causet/embedded"
    23  	"github.com/whtcorpsinc/milevadb/causet/memo"
    24  	"github.com/whtcorpsinc/milevadb/schemareplicant"
    25  	"github.com/whtcorpsinc/milevadb/soliton/solitonutil"
    26  	"github.com/whtcorpsinc/milevadb/stochastikctx"
    27  )
    28  
    29  var _ = Suite(&testStringerSuite{})
    30  
    31  type testStringerSuite struct {
    32  	*BerolinaSQL.BerolinaSQL
    33  	is        schemareplicant.SchemaReplicant
    34  	sctx      stochastikctx.Context
    35  	testData  solitonutil.TestData
    36  	optimizer *Optimizer
    37  }
    38  
    39  func (s *testStringerSuite) SetUpSuite(c *C) {
    40  	s.is = schemareplicant.MockSchemaReplicant([]*perceptron.BlockInfo{causetembedded.MockSignedBlock()})
    41  	s.sctx = causetembedded.MockContext()
    42  	s.BerolinaSQL = BerolinaSQL.New()
    43  	s.optimizer = NewOptimizer()
    44  	var err error
    45  	s.testData, err = solitonutil.LoadTestSuiteData("testdata", "stringer_suite")
    46  	c.Assert(err, IsNil)
    47  }
    48  
    49  func (s *testStringerSuite) TearDownSuite(c *C) {
    50  	c.Assert(s.testData.GenerateOutputIfNeeded(), IsNil)
    51  }
    52  
    53  func (s *testStringerSuite) TestGroupStringer(c *C) {
    54  	s.optimizer.ResetTransformationMemrules(map[memo.Operand][]Transformation{
    55  		memo.OperandSelection: {
    56  			NewMemrulePushSelDownEinsteinDBSingleGather(),
    57  			NewMemrulePushSelDownBlockScan(),
    58  		},
    59  		memo.OperandDataSource: {
    60  			NewMemruleEnumeratePaths(),
    61  		},
    62  	})
    63  	defer func() {
    64  		s.optimizer.ResetTransformationMemrules(DefaultMemruleBatches...)
    65  	}()
    66  	var input []string
    67  	var output []struct {
    68  		ALLEGROALLEGROSQL string
    69  		Result            []string
    70  	}
    71  	s.testData.GetTestCases(c, &input, &output)
    72  	for i, allegrosql := range input {
    73  		stmt, err := s.ParseOneStmt(allegrosql, "", "")
    74  		c.Assert(err, IsNil)
    75  		p, _, err := causetembedded.BuildLogicalCauset(context.Background(), s.sctx, stmt, s.is)
    76  		c.Assert(err, IsNil)
    77  		logic, ok := p.(causetembedded.LogicalCauset)
    78  		c.Assert(ok, IsTrue)
    79  		logic, err = s.optimizer.onPhasePreprocessing(s.sctx, logic)
    80  		c.Assert(err, IsNil)
    81  		group := memo.Convert2Group(logic)
    82  		err = s.optimizer.onPhaseExploration(s.sctx, group)
    83  		c.Assert(err, IsNil)
    84  		group.BuildKeyInfo()
    85  		s.testData.OnRecord(func() {
    86  			output[i].ALLEGROALLEGROSQL = allegrosql
    87  			output[i].Result = ToString(group)
    88  		})
    89  		c.Assert(ToString(group), DeepEquals, output[i].Result)
    90  	}
    91  }