constellation/internal/grpc/retry/retry_test.go
Otto Bittner c743398a23 AB#2181: retry k8s downloads (#286)
Generalize retrier:
* Generalize Do to use a supplied 'retriable' function
* Make clock an optional argument in NewIntervalRetrier
* Move grpc/retrier to interal package
* Update existing unittests to not use retry feature

Add retryDownloadToTempDir:
* Wrap downloadToTempDir with retrier.
* Retry if TCP connection is reset.
* Abort by canceling the context.
* Use a mock server in the unit test that serves responses
depending on the state received through a state channel.

Co-authored-by: katexochen <49727155+katexochen@users.noreply.github.com>
2022-07-21 15:20:12 +02:00

48 lines
1.1 KiB
Go

package retry
import (
"errors"
"fmt"
"testing"
"github.com/stretchr/testify/assert"
"google.golang.org/grpc/codes"
"google.golang.org/grpc/status"
)
func TestServiceIsUnavailable(t *testing.T) {
testCases := map[string]struct {
err error
wantUnavailable bool
}{
"nil": {},
"not status error": {
err: errors.New("error"),
},
"not unavailable": {
err: status.Error(codes.Internal, "error"),
},
"unavailable error with authentication handshake failure": {
err: status.Error(codes.Unavailable, `connection error: desc = "transport: authentication handshake failed`),
},
"normal unavailable error": {
err: status.Error(codes.Unavailable, "error"),
wantUnavailable: true,
},
"wrapped error": {
err: fmt.Errorf("some wrapping: %w", status.Error(codes.Unavailable, "error")),
wantUnavailable: true,
},
"code unknown": {
err: status.Error(codes.Unknown, "unknown"),
},
}
for name, tc := range testCases {
t.Run(name, func(t *testing.T) {
assert := assert.New(t)
assert.Equal(tc.wantUnavailable, ServiceIsUnavailable(tc.err))
})
}
}