/
expression_test.go
237 lines (225 loc) · 8.45 KB
/
expression_test.go
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package clause_test
import (
"database/sql"
"fmt"
"reflect"
"sync"
"testing"
"gorm.io/gorm"
"gorm.io/gorm/clause"
"gorm.io/gorm/schema"
"gorm.io/gorm/utils/tests"
)
func TestExpr(t *testing.T) {
results := []struct {
SQL string
Result string
Vars []interface{}
}{{
SQL: "create table ? (? ?, ? ?)",
Vars: []interface{}{clause.Table{Name: "users"}, clause.Column{Name: "id"}, clause.Expr{SQL: "int"}, clause.Column{Name: "name"}, clause.Expr{SQL: "text"}},
Result: "create table `users` (`id` int, `name` text)",
}}
for idx, result := range results {
t.Run(fmt.Sprintf("case #%v", idx), func(t *testing.T) {
user, _ := schema.Parse(&tests.User{}, &sync.Map{}, db.NamingStrategy)
stmt := &gorm.Statement{DB: db, Table: user.Table, Schema: user, Clauses: map[string]clause.Clause{}}
clause.Expr{SQL: result.SQL, Vars: result.Vars}.Build(stmt)
if stmt.SQL.String() != result.Result {
t.Errorf("generated SQL is not equal, expects %v, but got %v", result.Result, stmt.SQL.String())
}
})
}
}
func TestNamedExpr(t *testing.T) {
type Base struct {
Name2 string
}
type NamedArgument struct {
Name1 string
Base
}
results := []struct {
SQL string
Result string
Vars []interface{}
ExpectedVars []interface{}
}{{
SQL: "create table ? (? ?, ? ?)",
Vars: []interface{}{clause.Table{Name: "users"}, clause.Column{Name: "id"}, clause.Expr{SQL: "int"}, clause.Column{Name: "name"}, clause.Expr{SQL: "text"}},
Result: "create table `users` (`id` int, `name` text)",
}, {
SQL: "name1 = @name AND name2 = @name",
Vars: []interface{}{sql.Named("name", "jinzhu")},
Result: "name1 = ? AND name2 = ?",
ExpectedVars: []interface{}{"jinzhu", "jinzhu"},
}, {
SQL: "name1 = @name AND name2 = @@name",
Vars: []interface{}{map[string]interface{}{"name": "jinzhu"}},
Result: "name1 = ? AND name2 = @@name",
ExpectedVars: []interface{}{"jinzhu"},
}, {
SQL: "name1 = @name1 AND name2 = @name2 AND name3 = @name1",
Vars: []interface{}{sql.Named("name1", "jinzhu"), sql.Named("name2", "jinzhu2")},
Result: "name1 = ? AND name2 = ? AND name3 = ?",
ExpectedVars: []interface{}{"jinzhu", "jinzhu2", "jinzhu"},
}, {
SQL: "name1 = @name1 AND name2 = @name2 AND name3 = @name1",
Vars: []interface{}{map[string]interface{}{"name1": "jinzhu", "name2": "jinzhu2"}},
Result: "name1 = ? AND name2 = ? AND name3 = ?",
ExpectedVars: []interface{}{"jinzhu", "jinzhu2", "jinzhu"},
}, {
SQL: "@@test AND name1 = @name1 AND name2 = @name2 AND name3 = @name1 @notexist",
Vars: []interface{}{sql.Named("name1", "jinzhu"), sql.Named("name2", "jinzhu2")},
Result: "@@test AND name1 = ? AND name2 = ? AND name3 = ? @notexist",
ExpectedVars: []interface{}{"jinzhu", "jinzhu2", "jinzhu"},
}, {
SQL: "@@test AND name1 = @Name1 AND name2 = @Name2 AND name3 = @Name1 @notexist",
Vars: []interface{}{NamedArgument{Name1: "jinzhu", Base: Base{Name2: "jinzhu2"}}},
Result: "@@test AND name1 = ? AND name2 = ? AND name3 = ? @notexist",
ExpectedVars: []interface{}{"jinzhu", "jinzhu2", "jinzhu"},
}, {
SQL: "create table ? (? ?, ? ?)",
Vars: []interface{}{},
Result: "create table ? (? ?, ? ?)",
}, {
SQL: "name1 = @name AND name2 = @name;",
Vars: []interface{}{sql.Named("name", "jinzhu")},
Result: "name1 = ? AND name2 = ?;",
ExpectedVars: []interface{}{"jinzhu", "jinzhu"},
}, {
SQL: "name1 = @name1\r\n AND name2 = @name2",
Vars: []interface{}{map[string]interface{}{"name1": "jinzhu", "name2": "jinzhu"}},
Result: "name1 = ?\r\n AND name2 = ?",
ExpectedVars: []interface{}{"jinzhu", "jinzhu"},
}, {
SQL: "name1 = @name1\r AND name2 = @name2",
Vars: []interface{}{map[string]interface{}{"name1": "jinzhu", "name2": "jinzhu"}},
Result: "name1 = ?\r AND name2 = ?",
ExpectedVars: []interface{}{"jinzhu", "jinzhu"},
}, {
SQL: "?",
Vars: []interface{}{clause.Column{Table: "table", Name: "col"}},
Result: "`table`.`col`",
}, {
SQL: "?",
Vars: []interface{}{clause.Column{Table: "table", Name: "col", Raw: true}},
Result: "table.col",
}, {
SQL: "?",
Vars: []interface{}{clause.Column{Table: "table", Name: clause.PrimaryKey, Raw: true}},
Result: "table.id",
}, {
SQL: "?",
Vars: []interface{}{clause.Column{Table: "table", Name: "col", Alias: "alias"}},
Result: "`table`.`col` AS `alias`",
}, {
SQL: "?",
Vars: []interface{}{clause.Column{Table: "table", Name: "col", Alias: "alias", Raw: true}},
Result: "table.col AS alias",
}, {
SQL: "?",
Vars: []interface{}{clause.Table{Name: "table", Alias: "alias"}},
Result: "`table` `alias`",
}, {
SQL: "?",
Vars: []interface{}{clause.Table{Name: "table", Alias: "alias", Raw: true}},
Result: "table alias",
}}
for idx, result := range results {
t.Run(fmt.Sprintf("case #%v", idx), func(t *testing.T) {
user, _ := schema.Parse(&tests.User{}, &sync.Map{}, db.NamingStrategy)
stmt := &gorm.Statement{DB: db, Table: user.Table, Schema: user, Clauses: map[string]clause.Clause{}}
clause.NamedExpr{SQL: result.SQL, Vars: result.Vars}.Build(stmt)
if stmt.SQL.String() != result.Result {
t.Errorf("generated SQL is not equal, expects %v, but got %v", result.Result, stmt.SQL.String())
}
if !reflect.DeepEqual(result.ExpectedVars, stmt.Vars) {
t.Errorf("generated vars is not equal, expects %v, but got %v", result.ExpectedVars, stmt.Vars)
}
})
}
}
func TestExpression(t *testing.T) {
column := "column-name"
results := []struct {
Expressions []clause.Expression
ExpectedVars []interface{}
Result string
}{{
Expressions: []clause.Expression{
clause.Eq{Column: column, Value: "column-value"},
},
ExpectedVars: []interface{}{"column-value"},
Result: "`column-name` = ?",
}, {
Expressions: []clause.Expression{
clause.Eq{Column: column, Value: nil},
clause.Eq{Column: column, Value: (*string)(nil)},
clause.Eq{Column: column, Value: (*int)(nil)},
clause.Eq{Column: column, Value: (*bool)(nil)},
clause.Eq{Column: column, Value: (interface{})(nil)},
clause.Eq{Column: column, Value: sql.NullString{String: "", Valid: false}},
},
Result: "`column-name` IS NULL",
}, {
Expressions: []clause.Expression{
clause.Neq{Column: column, Value: "column-value"},
},
ExpectedVars: []interface{}{"column-value"},
Result: "`column-name` <> ?",
}, {
Expressions: []clause.Expression{
clause.Neq{Column: column, Value: nil},
clause.Neq{Column: column, Value: (*string)(nil)},
clause.Neq{Column: column, Value: (*int)(nil)},
clause.Neq{Column: column, Value: (*bool)(nil)},
clause.Neq{Column: column, Value: (interface{})(nil)},
},
Result: "`column-name` IS NOT NULL",
}, {
Expressions: []clause.Expression{
clause.Eq{Column: column, Value: []string{"a", "b"}},
},
ExpectedVars: []interface{}{"a", "b"},
Result: "`column-name` IN (?,?)",
}, {
Expressions: []clause.Expression{
clause.Neq{Column: column, Value: []string{"a", "b"}},
},
ExpectedVars: []interface{}{"a", "b"},
Result: "`column-name` NOT IN (?,?)",
}, {
Expressions: []clause.Expression{
clause.Eq{Column: column, Value: []string{}},
},
Result: "`column-name` IN (NULL)",
}, {
Expressions: []clause.Expression{
clause.Eq{Column: clause.Expr{SQL: "SUM(?)", Vars: []interface{}{clause.Column{Name: "id"}}}, Value: 100},
},
ExpectedVars: []interface{}{100},
Result: "SUM(`id`) = ?",
}, {
Expressions: []clause.Expression{
clause.Gte{Column: clause.Expr{SQL: "SUM(?)", Vars: []interface{}{clause.Column{Table: "users", Name: "id"}}}, Value: 100},
},
ExpectedVars: []interface{}{100},
Result: "SUM(`users`.`id`) >= ?",
}}
for idx, result := range results {
for idy, expression := range result.Expressions {
t.Run(fmt.Sprintf("case #%v.%v", idx, idy), func(t *testing.T) {
user, _ := schema.Parse(&tests.User{}, &sync.Map{}, db.NamingStrategy)
stmt := &gorm.Statement{DB: db, Table: user.Table, Schema: user, Clauses: map[string]clause.Clause{}}
expression.Build(stmt)
if stmt.SQL.String() != result.Result {
t.Errorf("generated SQL is not equal, expects %v, but got %v", result.Result, stmt.SQL.String())
}
if !reflect.DeepEqual(result.ExpectedVars, stmt.Vars) {
t.Errorf("generated vars is not equal, expects %v, but got %v", result.ExpectedVars, stmt.Vars)
}
})
}
}
}