github.com/whtcorpsinc/milevadb-prod@v0.0.0-20211104133533-f57f4be3b597/causetstore/stochastikctx/variable/sysvar_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 variable
    15  
    16  import (
    17  	"testing"
    18  
    19  	"github.com/whtcorpsinc/BerolinaSQL/allegrosql"
    20  	"github.com/whtcorpsinc/BerolinaSQL/terror"
    21  	. "github.com/whtcorpsinc/check"
    22  )
    23  
    24  func TestT(t *testing.T) {
    25  	CustomVerboseFlag = true
    26  	TestingT(t)
    27  }
    28  
    29  var _ = Suite(&testSysVarSuite{})
    30  
    31  type testSysVarSuite struct {
    32  }
    33  
    34  func (*testSysVarSuite) TestSysVar(c *C) {
    35  	f := GetSysVar("autocommit")
    36  	c.Assert(f, NotNil)
    37  
    38  	f = GetSysVar("wrong-var-name")
    39  	c.Assert(f, IsNil)
    40  
    41  	f = GetSysVar("explicit_defaults_for_timestamp")
    42  	c.Assert(f, NotNil)
    43  	c.Assert(f.Value, Equals, "1")
    44  
    45  	f = GetSysVar("port")
    46  	c.Assert(f, NotNil)
    47  	c.Assert(f.Value, Equals, "4000")
    48  
    49  	f = GetSysVar("milevadb_low_resolution_tso")
    50  	c.Assert(f.Value, Equals, "0")
    51  
    52  	f = GetSysVar("milevadb_replica_read")
    53  	c.Assert(f.Value, Equals, "leader")
    54  
    55  	f = GetSysVar("milevadb_enable_block_partition")
    56  	c.Assert(f.Value, Equals, "on")
    57  }
    58  
    59  func (*testSysVarSuite) TestTxnMode(c *C) {
    60  	seVar := NewStochastikVars()
    61  	c.Assert(seVar, NotNil)
    62  	c.Assert(seVar.TxnMode, Equals, "")
    63  	err := seVar.setTxnMode("pessimistic")
    64  	c.Assert(err, IsNil)
    65  	err = seVar.setTxnMode("optimistic")
    66  	c.Assert(err, IsNil)
    67  	err = seVar.setTxnMode("")
    68  	c.Assert(err, IsNil)
    69  	err = seVar.setTxnMode("something else")
    70  	c.Assert(err, NotNil)
    71  }
    72  
    73  func (*testSysVarSuite) TestBoolToInt32(c *C) {
    74  	c.Assert(BoolToInt32(true), Equals, int32(1))
    75  	c.Assert(BoolToInt32(false), Equals, int32(0))
    76  }
    77  
    78  func (*testSysVarSuite) TestError(c *C) {
    79  	ekvErrs := []*terror.Error{
    80  		ErrUnsupportedValueForVar,
    81  		ErrUnknownSystemVar,
    82  		ErrIncorrectScope,
    83  		ErrUnknownTimeZone,
    84  		ErrReadOnly,
    85  		ErrWrongValueForVar,
    86  		ErrWrongTypeForVar,
    87  		ErrTruncatedWrongValue,
    88  		ErrMaxPreparedStmtCountReached,
    89  		ErrUnsupportedIsolationLevel,
    90  	}
    91  	for _, err := range ekvErrs {
    92  		c.Assert(terror.ToALLEGROSQLError(err).Code != allegrosql.ErrUnknown, IsTrue)
    93  	}
    94  }