telegraf/plugins/inputs/postfix/postfix_test.go

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2017-11-28 18:08:41 +00:00
package postfix
import (
"io/ioutil"
"os"
"path"
"testing"
"github.com/influxdata/telegraf/testutil"
"github.com/stretchr/testify/assert"
"github.com/stretchr/testify/require"
)
func TestGather(t *testing.T) {
td, err := ioutil.TempDir("", "")
require.NoError(t, err)
defer os.RemoveAll(td)
for _, q := range []string{"active", "hold", "incoming", "maildrop", "deferred"} {
require.NoError(t, os.Mkdir(path.Join(td, q), 0755))
}
for _, q := range []string{"0", "1", "2", "3", "4", "5", "6", "7", "8", "9", "A", "B", "C", "D", "F"} { // "E" deliberately left off
require.NoError(t, os.Mkdir(path.Join(td, "deferred", q), 0755))
}
require.NoError(t, ioutil.WriteFile(path.Join(td, "active", "01"), []byte("abc"), 0644))
require.NoError(t, ioutil.WriteFile(path.Join(td, "active", "02"), []byte("defg"), 0644))
require.NoError(t, ioutil.WriteFile(path.Join(td, "hold", "01"), []byte("abc"), 0644))
require.NoError(t, ioutil.WriteFile(path.Join(td, "incoming", "01"), []byte("abcd"), 0644))
require.NoError(t, ioutil.WriteFile(path.Join(td, "deferred", "0", "01"), []byte("abc"), 0644))
require.NoError(t, ioutil.WriteFile(path.Join(td, "deferred", "F", "F1"), []byte("abc"), 0644))
p := Postfix{
QueueDirectory: td,
}
var acc testutil.Accumulator
require.NoError(t, p.Gather(&acc))
metrics := map[string]*testutil.Metric{}
for _, m := range acc.Metrics {
metrics[m.Tags["queue"]] = m
}
assert.Equal(t, int64(2), metrics["active"].Fields["length"])
assert.Equal(t, int64(7), metrics["active"].Fields["size"])
assert.InDelta(t, 0, metrics["active"].Fields["age"], 10)
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assert.Equal(t, int64(1), metrics["hold"].Fields["length"])
assert.Equal(t, int64(3), metrics["hold"].Fields["size"])
assert.Equal(t, int64(1), metrics["incoming"].Fields["length"])
assert.Equal(t, int64(4), metrics["incoming"].Fields["size"])
assert.Equal(t, int64(0), metrics["maildrop"].Fields["length"])
assert.Equal(t, int64(0), metrics["maildrop"].Fields["size"])
assert.Equal(t, int64(0), metrics["maildrop"].Fields["age"])
assert.Equal(t, int64(2), metrics["deferred"].Fields["length"])
assert.Equal(t, int64(6), metrics["deferred"].Fields["size"])
}