Package bttest contains test helpers for working with the bigtable package.
To use a Server, create it, and then connect to it with no security: (The project/instance values are ignored.)
srv , err := bttest . NewServer ( "localhost:0" ) ... conn , err := grpc . Dial ( srv . Addr , grpc . WithTransportCredentials ( insecure . NewCredentials ())) ... client , err := bigtable . NewClient ( ctx , proj , instance , option . WithGRPCConn ( conn )) ...
Server
type
Server
struct
{
Addr
string
// contains filtered or unexported fields
}
Server is an in-memory Cloud Bigtable fake. It is unauthenticated, and only a rough approximation.
func NewServer
func
NewServer
(
laddr
string
,
opt
...
grpc
.
ServerOption
)
(
*
Server
,
error
)
NewServer creates a new Server. The Server will be listening for gRPC connections, without TLS, on the provided address. The resolved address is named by the Addr field.
Example
package
main
import
(
"context"
"fmt"
"log"
"cloud.google.com/go/bigtable"
"cloud.google.com/go/bigtable/bttest"
"google.golang.org/api/option"
"google.golang.org/grpc"
)
func
main
()
{
srv
,
err
:=
bttest
.
NewServer
(
"localhost:0"
)
if
err
!=
nil
{
log
.
Fatalln
(
err
)
}
ctx
:=
context
.
Background
()
conn
,
err
:=
grpc
.
Dial
(
srv
.
Addr
,
grpc
.
WithInsecure
())
if
err
!=
nil
{
log
.
Fatalln
(
err
)
}
proj
,
instance
:=
"proj"
,
"instance"
adminClient
,
err
:=
bigtable
.
NewAdminClient
(
ctx
,
proj
,
instance
,
option
.
WithGRPCConn
(
conn
))
if
err
!=
nil
{
log
.
Fatalln
(
err
)
}
if
err
=
adminClient
.
CreateTable
(
ctx
,
"example"
);
err
!=
nil
{
log
.
Fatalln
(
err
)
}
if
err
=
adminClient
.
CreateColumnFamily
(
ctx
,
"example"
,
"links"
);
err
!=
nil
{
log
.
Fatalln
(
err
)
}
client
,
err
:=
bigtable
.
NewClientWithConfig
(
ctx
,
proj
,
instance
,
bigtable
.
ClientConfig
{
MetricsProvider
:
bigtable
.
NoopMetricsProvider
{}},
option
.
WithGRPCConn
(
conn
))
if
err
!=
nil
{
log
.
Fatalln
(
err
)
}
tbl
:=
client
.
Open
(
"example"
)
mut
:=
bigtable
.
NewMutation
()
mut
.
Set
(
"links"
,
"golang.org"
,
bigtable
.
Now
(),
[]
byte
(
"Gophers!"
))
if
err
=
tbl
.
Apply
(
ctx
,
"com.google.cloud"
,
mut
);
err
!=
nil
{
log
.
Fatalln
(
err
)
}
if
row
,
err
:=
tbl
.
ReadRow
(
ctx
,
"com.google.cloud"
);
err
!=
nil
{
log
.
Fatalln
(
err
)
}
else
{
for
_
,
column
:=
range
row
[
"links"
]
{
fmt
.
Println
(
column
.
Column
)
fmt
.
Println
(
string
(
column
.
Value
))
}
}
}
func (*Server) Close
func
(
s
*
Server
)
Close
()
Close shuts down the server.
