telegraf/metric/parse_test.go

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package metric
import (
"testing"
"time"
"github.com/stretchr/testify/assert"
)
const trues = `booltest b=T
booltest b=t
booltest b=True
booltest b=TRUE
booltest b=true
`
const falses = `booltest b=F
booltest b=f
booltest b=False
booltest b=FALSE
booltest b=false
`
const withEscapes = `w\,\ eather,host=local temp=99 1465839830100400200
w\,eather,host=local temp=99 1465839830100400200
weather,location=us\,midwest temperature=82 1465839830100400200
weather,location=us-midwest temp\=rature=82 1465839830100400200
weather,location\ place=us-midwest temperature=82 1465839830100400200
weather,location=us-midwest temperature="too\"hot\"" 1465839830100400200
`
const withTimestamps = `cpu usage=99 1480595849000000000
cpu usage=99 1480595850000000000
cpu usage=99 1480595851700030000
cpu usage=99 1480595852000000300
`
const sevenMetrics = `cpu,host=foo,datacenter=us-east idle=99,busy=1i,b=true,s="string"
cpu,host=foo,datacenter=us-east idle=99,busy=1i,b=true,s="string"
cpu,host=foo,datacenter=us-east idle=99,busy=1i,b=true,s="string"
cpu,host=foo,datacenter=us-east idle=99,busy=1i,b=true,s="string"
cpu,host=foo,datacenter=us-east idle=99,busy=1i,b=true,s="string"
cpu,host=foo,datacenter=us-east idle=99,busy=1i,b=true,s="string"
cpu,host=foo,datacenter=us-east idle=99,busy=1i,b=true,s="string"
`
const negMetrics = `weather,host=local temp=-99i,temp_float=-99.4 1465839830100400200
`
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// some metrics are invalid
const someInvalid = `cpu,host=foo,datacenter=us-east usage_idle=99,usage_busy=1
cpu,host=foo,datacenter=us-east usage_idle=99,usage_busy=1
cpu,host=foo,datacenter=us-east usage_idle=99,usage_busy=1
cpu,cpu=cpu3, host=foo,datacenter=us-east usage_idle=99,usage_busy=1
cpu,cpu=cpu4 , usage_idle=99,usage_busy=1
cpu 1480595852000000300
cpu usage=99 1480595852foobar300
cpu,host=foo,datacenter=us-east usage_idle=99,usage_busy=1
`
func TestParse(t *testing.T) {
start := time.Now()
metrics, err := Parse([]byte(sevenMetrics))
assert.NoError(t, err)
assert.Len(t, metrics, 7)
// all metrics parsed together w/o a timestamp should have the same time.
firstTime := metrics[0].Time()
for _, m := range metrics {
assert.Equal(t,
map[string]interface{}{
"idle": float64(99),
"busy": int64(1),
"b": true,
"s": "string",
},
m.Fields(),
)
assert.Equal(t,
map[string]string{
"host": "foo",
"datacenter": "us-east",
},
m.Tags(),
)
assert.True(t, m.Time().After(start))
assert.True(t, m.Time().Equal(firstTime))
}
}
func TestParseNegNumbers(t *testing.T) {
metrics, err := Parse([]byte(negMetrics))
assert.NoError(t, err)
assert.Len(t, metrics, 1)
assert.Equal(t,
map[string]interface{}{
"temp": int64(-99),
"temp_float": float64(-99.4),
},
metrics[0].Fields(),
)
assert.Equal(t,
map[string]string{
"host": "local",
},
metrics[0].Tags(),
)
}
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func TestParseErrors(t *testing.T) {
start := time.Now()
metrics, err := Parse([]byte(someInvalid))
assert.Error(t, err)
assert.Len(t, metrics, 4)
// all metrics parsed together w/o a timestamp should have the same time.
firstTime := metrics[0].Time()
for _, m := range metrics {
assert.Equal(t,
map[string]interface{}{
"usage_idle": float64(99),
"usage_busy": float64(1),
},
m.Fields(),
)
assert.Equal(t,
map[string]string{
"host": "foo",
"datacenter": "us-east",
},
m.Tags(),
)
assert.True(t, m.Time().After(start))
assert.True(t, m.Time().Equal(firstTime))
}
}
func TestParseWithTimestamps(t *testing.T) {
metrics, err := Parse([]byte(withTimestamps))
assert.NoError(t, err)
assert.Len(t, metrics, 4)
expectedTimestamps := []time.Time{
time.Unix(0, 1480595849000000000),
time.Unix(0, 1480595850000000000),
time.Unix(0, 1480595851700030000),
time.Unix(0, 1480595852000000300),
}
// all metrics parsed together w/o a timestamp should have the same time.
for i, m := range metrics {
assert.Equal(t,
map[string]interface{}{
"usage": float64(99),
},
m.Fields(),
)
assert.True(t, m.Time().Equal(expectedTimestamps[i]))
}
}
func TestParseEscapes(t *testing.T) {
metrics, err := Parse([]byte(withEscapes))
assert.NoError(t, err)
assert.Len(t, metrics, 6)
tests := []struct {
name string
fields map[string]interface{}
tags map[string]string
}{
{
name: `w, eather`,
fields: map[string]interface{}{"temp": float64(99)},
tags: map[string]string{"host": "local"},
},
{
name: `w,eather`,
fields: map[string]interface{}{"temp": float64(99)},
tags: map[string]string{"host": "local"},
},
{
name: `weather`,
fields: map[string]interface{}{"temperature": float64(82)},
tags: map[string]string{"location": `us,midwest`},
},
{
name: `weather`,
fields: map[string]interface{}{`temp=rature`: float64(82)},
tags: map[string]string{"location": `us-midwest`},
},
{
name: `weather`,
fields: map[string]interface{}{"temperature": float64(82)},
tags: map[string]string{`location place`: `us-midwest`},
},
{
name: `weather`,
fields: map[string]interface{}{`temperature`: `too"hot"`},
tags: map[string]string{"location": `us-midwest`},
},
}
for i, test := range tests {
assert.Equal(t, test.name, metrics[i].Name())
assert.Equal(t, test.fields, metrics[i].Fields())
assert.Equal(t, test.tags, metrics[i].Tags())
}
}
func TestParseTrueBooleans(t *testing.T) {
metrics, err := Parse([]byte(trues))
assert.NoError(t, err)
assert.Len(t, metrics, 5)
for _, metric := range metrics {
assert.Equal(t, "booltest", metric.Name())
assert.Equal(t, true, metric.Fields()["b"])
}
}
func TestParseFalseBooleans(t *testing.T) {
metrics, err := Parse([]byte(falses))
assert.NoError(t, err)
assert.Len(t, metrics, 5)
for _, metric := range metrics {
assert.Equal(t, "booltest", metric.Name())
assert.Equal(t, false, metric.Fields()["b"])
}
}
func TestParsePointBadNumber(t *testing.T) {
for _, tt := range []string{
"cpu v=- ",
"cpu v=-i ",
"cpu v=-. ",
"cpu v=. ",
"cpu v=1.0i ",
"cpu v=1ii ",
"cpu v=1a ",
"cpu v=-e-e-e ",
"cpu v=42+3 ",
"cpu v= ",
} {
_, err := Parse([]byte(tt + "\n"))
assert.Error(t, err, tt)
}
}
func TestParseTagsMissingParts(t *testing.T) {
for _, tt := range []string{
`cpu,host`,
`cpu,host,`,
`cpu,host=`,
`cpu,f=oo=bar value=1`,
`cpu,host value=1i`,
`cpu,host=serverA,region value=1i`,
`cpu,host=serverA,region= value=1i`,
`cpu,host=serverA,region=,zone=us-west value=1i`,
`cpu, value=1`,
`cpu, ,,`,
`cpu,,,`,
`cpu,host=serverA,=us-east value=1i`,
`cpu,host=serverAa\,,=us-east value=1i`,
`cpu,host=serverA\,,=us-east value=1i`,
`cpu, =serverA value=1i`,
} {
_, err := Parse([]byte(tt + "\n"))
assert.Error(t, err, tt)
}
}
func TestParsePointWhitespace(t *testing.T) {
for _, tt := range []string{
`cpu value=1.0 1257894000000000000`,
`cpu value=1.0 1257894000000000000`,
`cpu value=1.0 1257894000000000000`,
`cpu value=1.0 1257894000000000000 `,
} {
m, err := Parse([]byte(tt + "\n"))
assert.NoError(t, err, tt)
assert.Equal(t, "cpu", m[0].Name())
assert.Equal(t, map[string]interface{}{"value": float64(1)}, m[0].Fields())
}
}
func TestParsePointInvalidFields(t *testing.T) {
for _, tt := range []string{
"test,foo=bar a=101,=value",
"test,foo=bar =value",
"test,foo=bar a=101,key=",
"test,foo=bar key=",
`test,foo=bar a=101,b="foo`,
} {
_, err := Parse([]byte(tt + "\n"))
assert.Error(t, err, tt)
}
}
func TestParsePointNoFields(t *testing.T) {
for _, tt := range []string{
"cpu_load_short,host=server01,region=us-west",
"very_long_measurement_name",
"cpu,host==",
"============",
"cpu",
"cpu\n\n\n\n\n\n\n",
" ",
} {
_, err := Parse([]byte(tt + "\n"))
assert.Error(t, err, tt)
}
}
// a b=1 << this is the shortest possible metric
// any shorter is just ignored
func TestParseBufTooShort(t *testing.T) {
for _, tt := range []string{
"",
"a",
"a ",
"a b=",
} {
_, err := Parse([]byte(tt + "\n"))
assert.Error(t, err, tt)
}
}
func TestParseInvalidBooleans(t *testing.T) {
for _, tt := range []string{
"test b=tru",
"test b=fals",
"test b=faLse",
"test q=foo",
"test b=lambchops",
} {
_, err := Parse([]byte(tt + "\n"))
assert.Error(t, err, tt)
}
}
func TestParseInvalidNumbers(t *testing.T) {
for _, tt := range []string{
"test b=-",
"test b=1.1.1",
"test b=nan",
"test b=9i10",
"test b=9999999999999999999i",
} {
_, err := Parse([]byte(tt + "\n"))
assert.Error(t, err, tt)
}
}
func TestParseNegativeTimestamps(t *testing.T) {
for _, tt := range []string{
"test foo=101 -1257894000000000000",
} {
metrics, err := Parse([]byte(tt + "\n"))
assert.NoError(t, err, tt)
assert.True(t, metrics[0].Time().Equal(time.Unix(0, -1257894000000000000)))
}
}
func TestParsePrecision(t *testing.T) {
for _, tt := range []struct {
line string
precision string
expected int64
}{
{"test v=42 1491847420", "s", 1491847420000000000},
{"test v=42 1491847420123", "ms", 1491847420123000000},
{"test v=42 1491847420123456", "u", 1491847420123456000},
{"test v=42 1491847420123456789", "ns", 1491847420123456789},
{"test v=42 1491847420123456789", "1s", 1491847420123456789},
{"test v=42 1491847420123456789", "asdf", 1491847420123456789},
} {
metrics, err := ParseWithDefaultTimePrecision(
[]byte(tt.line+"\n"), time.Now(), tt.precision)
assert.NoError(t, err, tt)
assert.Equal(t, tt.expected, metrics[0].UnixNano())
}
}
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func TestParseMaxKeyLength(t *testing.T) {
key := ""
for {
if len(key) > MaxKeyLength {
break
}
key += "test"
}
_, err := Parse([]byte(key + " value=1\n"))
assert.Error(t, err)
}