mock.go

Documentation: k8s.io/kubernetes/test/e2e/storage/drivers/csi-test/driver

     1  /*
     2  Copyright 2021 The Kubernetes Authors.
     3  
     4  Licensed under the Apache License, Version 2.0 (the "License");
     5  you may not use this file except in compliance with the License.
     6  You may obtain a copy of the License at
     7  
     8      http://www.apache.org/licenses/LICENSE-2.0
     9  
    10  Unless required by applicable law or agreed to in writing, software
    11  distributed under the License is distributed on an "AS IS" BASIS,
    12  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
    13  See the License for the specific language governing permissions and
    14  limitations under the License.
    15  */
    16  
    17  package driver
    18  
    19  import (
    20  	"net"
    21  
    22  	"google.golang.org/grpc"
    23  )
    24  
    25  type MockCSIDriverServers struct {
    26  	Controller *MockControllerServer
    27  	Identity   *MockIdentityServer
    28  	Node       *MockNodeServer
    29  }
    30  
    31  type MockCSIDriver struct {
    32  	CSIDriver
    33  	conn        *grpc.ClientConn
    34  	interceptor grpc.UnaryServerInterceptor
    35  }
    36  
    37  func NewMockCSIDriver(servers *MockCSIDriverServers, interceptor grpc.UnaryServerInterceptor) *MockCSIDriver {
    38  	return &MockCSIDriver{
    39  		CSIDriver: CSIDriver{
    40  			servers: &CSIDriverServers{
    41  				Controller: servers.Controller,
    42  				Node:       servers.Node,
    43  				Identity:   servers.Identity,
    44  			},
    45  		},
    46  		interceptor: interceptor,
    47  	}
    48  }
    49  
    50  // StartOnAddress starts a new gRPC server listening on given address.
    51  func (m *MockCSIDriver) StartOnAddress(network, address string) error {
    52  	l, err := net.Listen(network, address)
    53  	if err != nil {
    54  		return err
    55  	}
    56  
    57  	if err := m.CSIDriver.Start(l, m.interceptor); err != nil {
    58  		l.Close()
    59  		return err
    60  	}
    61  
    62  	return nil
    63  }
    64  
    65  // Start starts a new gRPC server listening on a random TCP loopback port.
    66  func (m *MockCSIDriver) Start() error {
    67  	// Listen on a port assigned by the net package
    68  	return m.StartOnAddress("tcp", "127.0.0.1:0")
    69  }
    70  
    71  func (m *MockCSIDriver) Close() {
    72  	m.conn.Close()
    73  	m.server.Stop()
    74  }
    75
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