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package api
import (
"errors"
"math"
"reflect"
"strings"
"testing"
"time"
)
func TestNewTypesDB(t *testing.T) {
input := `
percent value:GAUGE:0:100.1
total_bytes value:DERIVE:0:U
signal_noise value:GAUGE:U:0
mysql_qcache hits:COUNTER:0:U, inserts:COUNTER:0:U, not_cached:COUNTER:0:U, lowmem_prunes:COUNTER:0:U, queries_in_cache:GAUGE:0:U
`
db, err := NewTypesDB(strings.NewReader(input))
if err != nil {
t.Errorf("NewTypesDB() = %v, want %v", err, nil)
}
want := &DataSet{
Name: "percent",
Sources: []DataSource{
DataSource{
Name: "value",
Type: reflect.TypeOf(Gauge(0)),
Min: 0.0,
Max: 100.1,
},
},
}
got, ok := db.DataSet("percent")
if !ok || !reflect.DeepEqual(got, want) {
t.Errorf("db[%q] = %v, %v, want %v, %v", "percent", got, ok, want, true)
}
got, ok = db.DataSet("total_bytes")
if !ok {
t.Fatal(`db.DataSet("total_bytes") missing`)
}
if !math.IsNaN(got.Sources[0].Max) {
t.Errorf("got.Sources[0].Max = %g, want %g", got.Sources[0].Max, math.NaN())
}
got, ok = db.DataSet("signal_noise")
if !ok {
t.Fatal(`db.DataSet("signal_noise") missing`)
}
if !math.IsNaN(got.Sources[0].Min) {
t.Errorf("got.Sources[0].Min = %g, want %g", got.Sources[0].Min, math.NaN())
}
got, ok = db.DataSet("mysql_qcache")
if !ok {
t.Fatal(`db.DataSet("mysql_qcache") missing`)
}
if len(got.Sources) != 5 {
t.Errorf("len(got.Sources) = %d, want %d", len(got.Sources), 5)
}
for i, name := range []string{"hits", "inserts", "not_cached", "lowmem_prunes", "queries_in_cache"} {
if got.Sources[i].Name != name {
t.Errorf("got.Sources[%d].Name = %q, want %q", i, got.Sources[i].Name, name)
}
}
}
func TestTypesDB_ValueList(t *testing.T) {
db, err := NewTypesDB(strings.NewReader(`
counter value:COUNTER:U:U
gauge value:GAUGE:U:U
derive value:DERIVE:0:U
if_octets rx:DERIVE:0:U, tx:DERIVE:0:U
`))
if err != nil {
t.Errorf("NewTypesDB() = %v, want %v", err, nil)
}
id := Identifier{
Host: "example.com",
Plugin: "golang",
Type: "gauge",
}
vl, err := db.ValueList(id, time.Unix(1469175855, 0), 10*time.Second, Gauge(42))
if err != nil {
t.Errorf("db.Values(%v, %v, %v, %v) = (%v, %v), want (..., %v)", id, time.Unix(1469175855, 0), 10*time.Second, Gauge(42.0), vl, err, nil)
}
}
func TestDataSource_Value(t *testing.T) {
cases := []struct {
arg interface{}
typ reflect.Type
wantValue Value
wantErr bool
}{
// COUNTER
{int(42), dsTypeCounter, Counter(42), false},
{uint(42), dsTypeCounter, Counter(42), false},
{int64(42), dsTypeCounter, Counter(42), false},
{uint64(42), dsTypeCounter, Counter(42), false},
{float32(42.5), dsTypeCounter, Counter(42), false},
{float64(42.8), dsTypeCounter, Counter(42), false},
{Counter(42), dsTypeCounter, Counter(42), false},
{true, dsTypeCounter, nil, true},
{"42", dsTypeCounter, nil, true},
// DERIVE
{int(42), dsTypeDerive, Derive(42), false},
{uint(42), dsTypeDerive, Derive(42), false},
{int64(42), dsTypeDerive, Derive(42), false},
{uint64(42), dsTypeDerive, Derive(42), false},
{float32(42.5), dsTypeDerive, Derive(42), false},
{float64(42.8), dsTypeDerive, Derive(42), false},
{Derive(42), dsTypeDerive, Derive(42), false},
{true, dsTypeDerive, nil, true},
{"42", dsTypeDerive, nil, true},
// GAUGE
{int(42), dsTypeGauge, Gauge(42), false},
{uint(42), dsTypeGauge, Gauge(42), false},
{int64(42), dsTypeGauge, Gauge(42), false},
{uint64(42), dsTypeGauge, Gauge(42), false},
{float32(42.5), dsTypeGauge, Gauge(42.5), false},
{float64(42.8), dsTypeGauge, Gauge(42.8), false},
{Gauge(42.9), dsTypeGauge, Gauge(42.9), false},
{true, dsTypeGauge, nil, true},
{"42", dsTypeGauge, nil, true},
}
for _, c := range cases {
dsrc := DataSource{
Name: "value",
Type: c.typ,
Min: 0.0,
Max: math.NaN(),
}
got, err := dsrc.Value(c.arg)
if err != nil {
if !c.wantErr {
t.Errorf("dsrc.Type = %s; dsrc.Value(%v) = (%v, %v), want <err>", dsrc.Type.Name(), c.arg, got, err)
}
continue
}
if c.wantErr || !reflect.DeepEqual(got, c.wantValue) {
var wantErr error
if c.wantErr {
wantErr = errors.New("<err>")
}
t.Errorf("dsrc.Type = %s; dsrc.Value(%v) = (%v, %v), want (%v, %v)", dsrc.Type.Name(), c.arg, got, err, c.wantValue, wantErr)
}
}
}
|
