github.com/pingcap/tiflow@v0.0.0-20240520035814-5bf52d54e205/dm/pkg/ha/relay_test.go (about)

     1  // Copyright 2021 PingCAP, 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 ha
    15  
    16  import (
    17  	. "github.com/pingcap/check"
    18  	"github.com/pingcap/tiflow/dm/config"
    19  )
    20  
    21  func (t *testForEtcd) TestGetRelayConfigEtcd(c *C) {
    22  	defer clearTestInfoOperation(c)
    23  
    24  	var (
    25  		worker = "dm-worker-1"
    26  		source = "mysql-replica-1"
    27  	)
    28  	cfg, err := config.LoadFromFile(sourceSampleFilePath)
    29  	c.Assert(err, IsNil)
    30  	cfg.SourceID = source
    31  	// no relay source and config
    32  	cfg1, rev1, err := GetRelayConfig(etcdTestCli, worker)
    33  	c.Assert(err, IsNil)
    34  	c.Assert(rev1, Greater, int64(0))
    35  	c.Assert(cfg1, IsNil)
    36  
    37  	rev2, err := PutRelayConfig(etcdTestCli, source, worker)
    38  	c.Assert(err, IsNil)
    39  	c.Assert(rev2, Greater, rev1)
    40  
    41  	// get relay source and config, but config is empty
    42  	_, _, err = GetRelayConfig(etcdTestCli, worker)
    43  	c.Assert(err, ErrorMatches, ".*doesn't have related source config in etcd.*")
    44  
    45  	rev3, err := PutSourceCfg(etcdTestCli, cfg)
    46  	c.Assert(err, IsNil)
    47  	c.Assert(rev3, Greater, rev2)
    48  	// get relay source and config
    49  	cfg2, rev4, err := GetRelayConfig(etcdTestCli, worker)
    50  	c.Assert(err, IsNil)
    51  	c.Assert(rev4, Equals, rev3)
    52  	c.Assert(cfg2, DeepEquals, cfg)
    53  
    54  	rev5, err := DeleteRelayConfig(etcdTestCli, worker)
    55  	c.Assert(err, IsNil)
    56  	c.Assert(rev5, Greater, rev4)
    57  
    58  	// though source config is saved in etcd, relay source is deleted so return nothing
    59  	cfg3, rev6, err := GetRelayConfig(etcdTestCli, worker)
    60  	c.Assert(err, IsNil)
    61  	c.Assert(rev6, Equals, rev5)
    62  	c.Assert(cfg3, IsNil)
    63  }