telegraf/plugins/inputs/redis/redis_test.go

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package redis
import (
"bufio"
"fmt"
"strings"
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"testing"
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"github.com/influxdata/telegraf/testutil"
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"github.com/stretchr/testify/require"
)
func TestRedisConnect(t *testing.T) {
if testing.Short() {
t.Skip("Skipping integration test in short mode")
}
addr := fmt.Sprintf(testutil.GetLocalHost() + ":6379")
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r := &Redis{
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Servers: []string{addr},
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}
var acc testutil.Accumulator
err := r.Gather(&acc)
require.NoError(t, err)
}
func TestRedis_ParseMetrics(t *testing.T) {
var acc testutil.Accumulator
tags := map[string]string{"host": "redis.net"}
rdr := bufio.NewReader(strings.NewReader(testOutput))
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err := gatherInfoOutput(rdr, &acc, tags)
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require.NoError(t, err)
tags = map[string]string{"host": "redis.net", "role": "master"}
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fields := map[string]interface{}{
"uptime": uint64(238),
"clients": uint64(1),
"used_memory": uint64(1003936),
"used_memory_rss": uint64(811008),
"used_memory_peak": uint64(1003936),
"used_memory_lua": uint64(33792),
"rdb_changes_since_last_save": uint64(0),
"total_connections_received": uint64(2),
"total_commands_processed": uint64(1),
"instantaneous_ops_per_sec": uint64(0),
"sync_full": uint64(0),
"sync_partial_ok": uint64(0),
"sync_partial_err": uint64(0),
"expired_keys": uint64(0),
"evicted_keys": uint64(0),
"keyspace_hits": uint64(1),
"keyspace_misses": uint64(1),
"pubsub_channels": uint64(0),
"pubsub_patterns": uint64(0),
"latest_fork_usec": uint64(0),
"connected_slaves": uint64(0),
"master_repl_offset": uint64(0),
"repl_backlog_active": uint64(0),
"repl_backlog_size": uint64(1048576),
"repl_backlog_histlen": uint64(0),
"mem_fragmentation_ratio": float64(0.81),
"instantaneous_input_kbps": float64(876.16),
"instantaneous_output_kbps": float64(3010.23),
"used_cpu_sys": float64(0.14),
"used_cpu_user": float64(0.05),
"used_cpu_sys_children": float64(0.00),
"used_cpu_user_children": float64(0.00),
"keyspace_hitrate": float64(0.50),
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}
keyspaceTags := map[string]string{"host": "redis.net", "role": "master", "database": "db0"}
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keyspaceFields := map[string]interface{}{
"avg_ttl": uint64(0),
"expires": uint64(0),
"keys": uint64(2),
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}
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acc.AssertContainsTaggedFields(t, "redis", fields, tags)
acc.AssertContainsTaggedFields(t, "redis_keyspace", keyspaceFields, keyspaceTags)
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}
const testOutput = `# Server
redis_version:2.8.9
redis_git_sha1:00000000
redis_git_dirty:0
redis_build_id:9ccc8119ea98f6e1
redis_mode:standalone
os:Darwin 14.1.0 x86_64
arch_bits:64
multiplexing_api:kqueue
gcc_version:4.2.1
process_id:40235
run_id:37d020620aadf0627282c0f3401405d774a82664
tcp_port:6379
uptime_in_seconds:238
uptime_in_days:0
hz:10
lru_clock:2364819
config_file:/usr/local/etc/redis.conf
# Clients
connected_clients:1
client_longest_output_list:0
client_biggest_input_buf:0
blocked_clients:0
# Memory
used_memory:1003936
used_memory_human:980.41K
used_memory_rss:811008
used_memory_peak:1003936
used_memory_peak_human:980.41K
used_memory_lua:33792
mem_fragmentation_ratio:0.81
mem_allocator:libc
# Persistence
loading:0
rdb_changes_since_last_save:0
rdb_bgsave_in_progress:0
rdb_last_save_time:1428427941
rdb_last_bgsave_status:ok
rdb_last_bgsave_time_sec:-1
rdb_current_bgsave_time_sec:-1
aof_enabled:0
aof_rewrite_in_progress:0
aof_rewrite_scheduled:0
aof_last_rewrite_time_sec:-1
aof_current_rewrite_time_sec:-1
aof_last_bgrewrite_status:ok
aof_last_write_status:ok
# Stats
total_connections_received:2
total_commands_processed:1
instantaneous_ops_per_sec:0
instantaneous_input_kbps:876.16
instantaneous_output_kbps:3010.23
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rejected_connections:0
sync_full:0
sync_partial_ok:0
sync_partial_err:0
expired_keys:0
evicted_keys:0
keyspace_hits:1
keyspace_misses:1
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pubsub_channels:0
pubsub_patterns:0
latest_fork_usec:0
# Replication
role:master
connected_slaves:0
master_repl_offset:0
repl_backlog_active:0
repl_backlog_size:1048576
repl_backlog_first_byte_offset:0
repl_backlog_histlen:0
# CPU
used_cpu_sys:0.14
used_cpu_user:0.05
used_cpu_sys_children:0.00
used_cpu_user_children:0.00
# Keyspace
db0:keys=2,expires=0,avg_ttl=0
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(error) ERR unknown command 'eof'
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`