telegraf/plugins/inputs/memcached/memcached_test.go

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package memcached
import (
"bufio"
"strings"
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"testing"
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"github.com/influxdata/telegraf/testutil"
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"github.com/stretchr/testify/assert"
"github.com/stretchr/testify/require"
)
func TestMemcachedGeneratesMetrics(t *testing.T) {
if testing.Short() {
t.Skip("Skipping integration test in short mode")
}
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m := &Memcached{
Servers: []string{testutil.GetLocalHost()},
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}
var acc testutil.Accumulator
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err := acc.GatherError(m.Gather)
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require.NoError(t, err)
intMetrics := []string{"get_hits", "get_misses", "evictions",
"limit_maxbytes", "bytes", "uptime", "curr_items", "total_items",
"curr_connections", "total_connections", "connection_structures", "cmd_get",
"cmd_set", "delete_hits", "delete_misses", "incr_hits", "incr_misses",
"decr_hits", "decr_misses", "cas_hits", "cas_misses",
"bytes_read", "bytes_written", "threads", "conn_yields"}
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for _, metric := range intMetrics {
assert.True(t, acc.HasInt64Field("memcached", metric), metric)
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}
}
func TestMemcachedParseMetrics(t *testing.T) {
r := bufio.NewReader(strings.NewReader(memcachedStats))
values, err := parseResponse(r)
require.NoError(t, err, "Error parsing memcached response")
tests := []struct {
key string
value string
}{
{"pid", "23235"},
{"uptime", "194"},
{"time", "1449174679"},
{"version", "1.4.14 (Ubuntu)"},
{"libevent", "2.0.21-stable"},
{"pointer_size", "64"},
{"rusage_user", "0.000000"},
{"rusage_system", "0.007566"},
{"curr_connections", "5"},
{"total_connections", "6"},
{"connection_structures", "6"},
{"reserved_fds", "20"},
{"cmd_get", "0"},
{"cmd_set", "0"},
{"cmd_flush", "0"},
{"cmd_touch", "0"},
{"get_hits", "0"},
{"get_misses", "0"},
{"delete_misses", "0"},
{"delete_hits", "0"},
{"incr_misses", "0"},
{"incr_hits", "0"},
{"decr_misses", "0"},
{"decr_hits", "0"},
{"cas_misses", "0"},
{"cas_hits", "0"},
{"cas_badval", "0"},
{"touch_hits", "0"},
{"touch_misses", "0"},
{"auth_cmds", "0"},
{"auth_errors", "0"},
{"bytes_read", "7"},
{"bytes_written", "0"},
{"limit_maxbytes", "67108864"},
{"accepting_conns", "1"},
{"listen_disabled_num", "0"},
{"threads", "4"},
{"conn_yields", "0"},
{"hash_power_level", "16"},
{"hash_bytes", "524288"},
{"hash_is_expanding", "0"},
{"expired_unfetched", "0"},
{"evicted_unfetched", "0"},
{"bytes", "0"},
{"curr_items", "0"},
{"total_items", "0"},
{"evictions", "0"},
{"reclaimed", "0"},
}
for _, test := range tests {
value, ok := values[test.key]
if !ok {
t.Errorf("Did not find key for metric %s in values", test.key)
continue
}
if value != test.value {
t.Errorf("Metric: %s, Expected: %s, actual: %s",
test.key, test.value, value)
}
}
}
var memcachedStats = `STAT pid 23235
STAT uptime 194
STAT time 1449174679
STAT version 1.4.14 (Ubuntu)
STAT libevent 2.0.21-stable
STAT pointer_size 64
STAT rusage_user 0.000000
STAT rusage_system 0.007566
STAT curr_connections 5
STAT total_connections 6
STAT connection_structures 6
STAT reserved_fds 20
STAT cmd_get 0
STAT cmd_set 0
STAT cmd_flush 0
STAT cmd_touch 0
STAT get_hits 0
STAT get_misses 0
STAT delete_misses 0
STAT delete_hits 0
STAT incr_misses 0
STAT incr_hits 0
STAT decr_misses 0
STAT decr_hits 0
STAT cas_misses 0
STAT cas_hits 0
STAT cas_badval 0
STAT touch_hits 0
STAT touch_misses 0
STAT auth_cmds 0
STAT auth_errors 0
STAT bytes_read 7
STAT bytes_written 0
STAT limit_maxbytes 67108864
STAT accepting_conns 1
STAT listen_disabled_num 0
STAT threads 4
STAT conn_yields 0
STAT hash_power_level 16
STAT hash_bytes 524288
STAT hash_is_expanding 0
STAT expired_unfetched 0
STAT evicted_unfetched 0
STAT bytes 0
STAT curr_items 0
STAT total_items 0
STAT evictions 0
STAT reclaimed 0
END
`