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package kafka
import (
"context"
"testing"
)
func TestClientMetadata(t *testing.T) {
client, topic, shutdown := newLocalClientAndTopic()
defer shutdown()
metadata, err := client.Metadata(context.Background(), &MetadataRequest{
Topics: []string{topic},
})
if err != nil {
t.Fatal(err)
}
if len(metadata.Brokers) == 0 {
t.Error("no brokers were returned in the metadata response")
}
for _, b := range metadata.Brokers {
if b == (Broker{}) {
t.Error("unexpected broker with zero-value in metadata response")
}
}
if len(metadata.Topics) == 0 {
t.Error("no topics were returned in the metadata response")
} else {
topicMetadata := metadata.Topics[0]
if topicMetadata.Name != topic {
t.Error("invalid topic name:", topicMetadata.Name)
}
if len(topicMetadata.Partitions) == 0 {
t.Error("no partitions were returned in the topic metadata response")
} else {
partitionMetadata := topicMetadata.Partitions[0]
if partitionMetadata.Topic != topic {
t.Error("invalid partition topic name:", partitionMetadata.Topic)
}
if partitionMetadata.ID != 0 {
t.Error("invalid partition index:", partitionMetadata.ID)
}
if partitionMetadata.Leader == (Broker{}) {
t.Error("no partition leader was returned in the partition metadata response")
}
if partitionMetadata.Error != nil {
t.Error("unexpected error found in the partition metadata response:", partitionMetadata.Error)
}
// assume newLocalClientAndTopic creates the topic with one
// partition
if len(topicMetadata.Partitions) > 1 {
t.Error("too many partitions were returned in the topic metadata response")
}
}
if topicMetadata.Error != nil {
t.Error("unexpected error found in the topic metadata response:", topicMetadata.Error)
}
if len(metadata.Topics) > 1 {
t.Error("too many topics were returned in the metadata response")
}
}
}
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