71 lines
2.3 KiB
Go
71 lines
2.3 KiB
Go
// Copyright 2017 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 ast_test
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import (
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. "github.com/pingcap/check"
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. "github.com/pingcap/tidb/ast"
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)
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var _ = Suite(&testDMLSuite{})
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type testDMLSuite struct {
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}
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func (ts *testDMLSuite) TestDMLVisitorCover(c *C) {
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ce := &checkExpr{}
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tableRefsClause := &TableRefsClause{TableRefs: &Join{Left: &TableSource{Source: &TableName{}}, On: &OnCondition{Expr: ce}}}
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stmts := []struct {
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node Node
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expectedEnterCnt int
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expectedLeaveCnt int
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}{
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{&DeleteStmt{TableRefs: tableRefsClause, Tables: &DeleteTableList{}, Where: ce,
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Order: &OrderByClause{}, Limit: &Limit{Count: ce, Offset: ce}}, 4, 4},
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{&ShowStmt{Table: &TableName{}, Column: &ColumnName{}, Pattern: &PatternLikeExpr{Expr: ce, Pattern: ce}, Where: ce}, 3, 3},
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{&LoadDataStmt{Table: &TableName{}, Columns: []*ColumnName{{}}, FieldsInfo: &FieldsClause{}, LinesInfo: &LinesClause{}}, 0, 0},
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{&Assignment{Column: &ColumnName{}, Expr: ce}, 1, 1},
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{&ByItem{Expr: ce}, 1, 1},
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{&GroupByClause{Items: []*ByItem{{Expr: ce}, {Expr: ce}}}, 2, 2},
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{&HavingClause{Expr: ce}, 1, 1},
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{&Join{Left: &TableSource{Source: &TableName{}}}, 0, 0},
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{&Limit{Count: ce, Offset: ce}, 2, 2},
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{&OnCondition{Expr: ce}, 1, 1},
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{&OrderByClause{Items: []*ByItem{{Expr: ce}, {Expr: ce}}}, 2, 2},
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{&SelectField{Expr: ce, WildCard: &WildCardField{}}, 1, 1},
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{&TableName{}, 0, 0},
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{tableRefsClause, 1, 1},
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{&TableSource{Source: &TableName{}}, 0, 0},
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{&WildCardField{}, 0, 0},
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// TODO: cover childrens
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{&InsertStmt{Table: tableRefsClause}, 1, 1},
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{&UnionStmt{}, 0, 0},
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{&UpdateStmt{TableRefs: tableRefsClause}, 1, 1},
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{&SelectStmt{}, 0, 0},
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{&FieldList{}, 0, 0},
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{&UnionSelectList{}, 0, 0},
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}
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for _, v := range stmts {
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ce.reset()
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v.node.Accept(checkVisitor{})
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c.Check(ce.enterCnt, Equals, v.expectedEnterCnt)
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c.Check(ce.leaveCnt, Equals, v.expectedLeaveCnt)
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v.node.Accept(visitor1{})
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}
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}
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