Add missing SELECT when dumping DB

acceptance-tests/acceptance.bats

@@ -1,6 +1,39 @@
 #!/usr/bin/env bats
 
+@test "Prints help on -h" {
+  run /redis-dump-go -h
+  [ "${lines[0]}" == 'Usage: /redis-dump-go [OPTION]...' ]
+  [ "$status" -eq 0 ]
+}
+
+@test "fail on incorrect parameters" {
+  run /redis-dump-go -fail
+  [ "$status" -eq 1 ]
+}
+
+@test "Pass when using a non-default db" {
+  run tests/select-db.sh
+  [ "$status" -eq 0 ]
+}
+
+@test "Pass when using a non-default db, and a password" {
+  run tests/select-db-with-password.sh
+  [ "$status" -eq 0 ]
+}
+
 @test "Dumping / restoring all databases" {
   run tests/multiple-dbs.sh
   [ "$status" -eq 0 ]
 }
+
+# https://github.com/yannh/redis-dump-go/issues/11
+# https://github.com/yannh/redis-dump-go/issues/18
+@test "Pass when importing a ZSET with 1M entries" {
+  run tests/large-zset.sh
+  [ "$status" -eq 0 ]
+}
+
+@test "Pass when importing 1M key/values" {
+  run tests/1mkeys.sh
+  [ "$status" -eq 0 ]
+}

acceptance-tests/tests/multiple-dbs.sh

@@ -9,7 +9,7 @@ for DB in `seq 1 $NDBS`; do
 done
 
 echo "-> Dumping DB..."
-time /redis-dump-go -host redis -n 250 -output resp >backup
+time /redis-dump-go -host redis -n 250 -output commands >backup
 
 echo "-> Flushing DB and restoring dump..."
 redis-cli -h redis FLUSHALL

pkg/redisdump/redisdump.go

@@ -355,6 +355,8 @@ func dumpDB(client radix.Client, db *uint8, filter string, nWorkers int, withTTL
 		keyGenerator = scanKeysLegacy
 	}
 
+	logger.Print(serializer([]string{"SELECT", fmt.Sprint(*db)}))
+
 	errors := make(chan error)
 	nErrors := 0
 	go func() {