500 lines
11 KiB
Go
500 lines
11 KiB
Go
package v1
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import (
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"encoding/json"
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"errors"
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"fmt"
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"io/ioutil"
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"net/http"
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"net/http/httptest"
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"net/url"
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"reflect"
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"testing"
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"time"
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"golang.org/x/net/context"
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clientmodel "github.com/prometheus/client_golang/model"
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"github.com/prometheus/prometheus/promql"
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"github.com/prometheus/prometheus/storage/metric"
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"github.com/prometheus/prometheus/util/route"
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)
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func TestEndpoints(t *testing.T) {
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suite, err := promql.NewTest(t, `
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load 1m
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test_metric1{foo="bar"} 0+100x100
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test_metric1{foo="boo"} 1+0x100
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test_metric2{foo="boo"} 1+0x100
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`)
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if err != nil {
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t.Fatal(err)
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}
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defer suite.Close()
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if err := suite.Run(); err != nil {
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t.Fatal(err)
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}
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api := &API{
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Storage: suite.Storage(),
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QueryEngine: suite.QueryEngine(),
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}
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start := clientmodel.Timestamp(0)
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var tests = []struct {
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endpoint apiFunc
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params map[string]string
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query url.Values
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response interface{}
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errType errorType
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}{
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{
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endpoint: api.query,
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query: url.Values{
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"query": []string{"2"},
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"time": []string{"123.3"},
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},
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response: &queryData{
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ResultType: promql.ExprScalar,
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Result: &promql.Scalar{
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Value: 2,
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Timestamp: start.Add(123*time.Second + 300*time.Millisecond),
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},
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},
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},
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{
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endpoint: api.query,
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query: url.Values{
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"query": []string{"0.333"},
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"time": []string{"1970-01-01T00:02:03Z"},
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},
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response: &queryData{
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ResultType: promql.ExprScalar,
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Result: &promql.Scalar{
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Value: 0.333,
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Timestamp: start.Add(123 * time.Second),
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},
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},
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},
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{
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endpoint: api.query,
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query: url.Values{
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"query": []string{"0.333"},
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"time": []string{"1970-01-01T01:02:03+01:00"},
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},
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response: &queryData{
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ResultType: promql.ExprScalar,
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Result: &promql.Scalar{
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Value: 0.333,
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Timestamp: start.Add(123 * time.Second),
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},
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},
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},
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{
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endpoint: api.queryRange,
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query: url.Values{
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"query": []string{"time()"},
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"start": []string{"0"},
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"end": []string{"2"},
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"step": []string{"1"},
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},
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response: &queryData{
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ResultType: promql.ExprMatrix,
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Result: promql.Matrix{
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&promql.SampleStream{
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Values: metric.Values{
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{Value: 0, Timestamp: start},
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{Value: 1, Timestamp: start.Add(1 * time.Second)},
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{Value: 2, Timestamp: start.Add(2 * time.Second)},
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},
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},
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},
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},
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},
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// Missing query params in range queries.
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{
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endpoint: api.queryRange,
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query: url.Values{
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"query": []string{"time()"},
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"end": []string{"2"},
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"step": []string{"1"},
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},
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errType: errorBadData,
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},
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{
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endpoint: api.queryRange,
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query: url.Values{
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"query": []string{"time()"},
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"start": []string{"0"},
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"step": []string{"1"},
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},
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errType: errorBadData,
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},
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{
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endpoint: api.queryRange,
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query: url.Values{
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"query": []string{"time()"},
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"start": []string{"0"},
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"end": []string{"2"},
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},
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errType: errorBadData,
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},
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// Missing evaluation time.
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{
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endpoint: api.query,
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query: url.Values{
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"query": []string{"0.333"},
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},
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errType: errorBadData,
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},
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// Bad query expression.
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{
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endpoint: api.query,
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query: url.Values{
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"query": []string{"invalid][query"},
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"time": []string{"1970-01-01T01:02:03+01:00"},
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},
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errType: errorBadData,
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},
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{
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endpoint: api.queryRange,
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query: url.Values{
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"query": []string{"invalid][query"},
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"start": []string{"0"},
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"end": []string{"100"},
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"step": []string{"1"},
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},
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errType: errorBadData,
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},
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{
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endpoint: api.labelValues,
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params: map[string]string{
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"name": "__name__",
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},
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response: clientmodel.LabelValues{
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"test_metric1",
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"test_metric2",
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},
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},
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{
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endpoint: api.labelValues,
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params: map[string]string{
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"name": "foo",
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},
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response: clientmodel.LabelValues{
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"bar",
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"boo",
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},
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},
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// Bad name parameter.
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{
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endpoint: api.labelValues,
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params: map[string]string{
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"name": "not!!!allowed",
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},
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errType: errorBadData,
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},
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{
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endpoint: api.series,
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query: url.Values{
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"match[]": []string{`test_metric2`},
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},
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response: []clientmodel.Metric{
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{
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"__name__": "test_metric2",
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"foo": "boo",
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},
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},
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},
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{
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endpoint: api.series,
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query: url.Values{
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"match[]": []string{`test_metric1{foo=~"o$"}`},
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},
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response: []clientmodel.Metric{
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{
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"__name__": "test_metric1",
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"foo": "boo",
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},
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},
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},
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{
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endpoint: api.series,
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query: url.Values{
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"match[]": []string{`test_metric1{foo=~"o$"}`, `test_metric1{foo=~"o$"}`},
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},
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response: []clientmodel.Metric{
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{
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"__name__": "test_metric1",
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"foo": "boo",
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},
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},
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},
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{
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endpoint: api.series,
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query: url.Values{
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"match[]": []string{`test_metric1{foo=~"o$"}`, `none`},
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},
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response: []clientmodel.Metric{
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{
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"__name__": "test_metric1",
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"foo": "boo",
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},
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},
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},
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// Missing match[] query params in series requests.
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{
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endpoint: api.series,
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errType: errorBadData,
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},
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{
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endpoint: api.dropSeries,
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errType: errorBadData,
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},
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// The following tests delete time series from the test storage. They
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// must remain at the end and are fixed in their order.
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{
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endpoint: api.dropSeries,
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query: url.Values{
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"match[]": []string{`test_metric1{foo=~"o$"}`},
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},
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response: struct {
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NumDeleted int `json:"numDeleted"`
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}{1},
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},
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{
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endpoint: api.series,
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query: url.Values{
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"match[]": []string{`test_metric1`},
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},
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response: []clientmodel.Metric{
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{
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"__name__": "test_metric1",
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"foo": "bar",
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},
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},
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}, {
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endpoint: api.dropSeries,
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query: url.Values{
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"match[]": []string{`{__name__=~".+"}`},
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},
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response: struct {
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NumDeleted int `json:"numDeleted"`
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}{2},
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},
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}
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for _, test := range tests {
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// Build a context with the correct request params.
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ctx := context.Background()
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for p, v := range test.params {
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ctx = route.WithParam(ctx, p, v)
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}
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api.context = func(r *http.Request) context.Context {
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return ctx
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}
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req, err := http.NewRequest("ANY", fmt.Sprintf("http://example.com?%s", test.query.Encode()), nil)
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if err != nil {
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t.Fatal(err)
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}
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resp, apiErr := test.endpoint(req)
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if apiErr != nil {
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if test.errType == errorNone {
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t.Fatalf("Unexpected error: %s", apiErr)
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}
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if test.errType != apiErr.typ {
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t.Fatalf("Expected error of type %q but got type %q", test.errType, apiErr.typ)
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}
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continue
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}
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if apiErr == nil && test.errType != errorNone {
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t.Fatalf("Expected error of type %q but got none", test.errType)
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}
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if !reflect.DeepEqual(resp, test.response) {
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t.Fatalf("Response does not match, expected:\n%#v\ngot:\n%#v", test.response, resp)
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}
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// Ensure that removed metrics are unindexed before the next request.
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suite.Storage().WaitForIndexing()
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}
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}
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func TestRespondSuccess(t *testing.T) {
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s := httptest.NewServer(http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
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respond(w, "test")
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}))
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defer s.Close()
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resp, err := http.Get(s.URL)
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if err != nil {
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t.Fatalf("Error on test request: %s", err)
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}
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body, err := ioutil.ReadAll(resp.Body)
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defer resp.Body.Close()
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if err != nil {
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t.Fatalf("Error reading response body: %s", err)
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}
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if resp.StatusCode != 200 {
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t.Fatalf("Return code %d expected in success response but got %d", 200, resp.StatusCode)
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}
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if h := resp.Header.Get("Content-Type"); h != "application/json" {
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t.Fatalf("Expected Content-Type %q but got %q", "application/json", h)
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}
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var res response
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if err = json.Unmarshal([]byte(body), &res); err != nil {
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t.Fatalf("Error unmarshaling JSON body: %s", err)
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}
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exp := &response{
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Status: statusSuccess,
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Data: "test",
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}
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if !reflect.DeepEqual(&res, exp) {
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t.Fatalf("Expected response \n%v\n but got \n%v\n", res, exp)
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}
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}
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func TestRespondError(t *testing.T) {
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s := httptest.NewServer(http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
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respondError(w, &apiError{errorTimeout, errors.New("message")}, "test")
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}))
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defer s.Close()
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resp, err := http.Get(s.URL)
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if err != nil {
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t.Fatalf("Error on test request: %s", err)
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}
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body, err := ioutil.ReadAll(resp.Body)
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defer resp.Body.Close()
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if err != nil {
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t.Fatalf("Error reading response body: %s", err)
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}
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if resp.StatusCode != 422 {
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t.Fatalf("Return code %d expected in error response but got %d", 422, resp.StatusCode)
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}
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if h := resp.Header.Get("Content-Type"); h != "application/json" {
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t.Fatalf("Expected Content-Type %q but got %q", "application/json", h)
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}
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var res response
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if err = json.Unmarshal([]byte(body), &res); err != nil {
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t.Fatalf("Error unmarshaling JSON body: %s", err)
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}
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exp := &response{
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Status: statusError,
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Data: "test",
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ErrorType: errorTimeout,
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Error: "message",
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}
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if !reflect.DeepEqual(&res, exp) {
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t.Fatalf("Expected response \n%v\n but got \n%v\n", res, exp)
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}
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}
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func TestParseTime(t *testing.T) {
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ts, err := time.Parse(time.RFC3339Nano, "2015-06-03T13:21:58.555Z")
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if err != nil {
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panic(err)
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}
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var tests = []struct {
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input string
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fail bool
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result time.Time
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}{
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{
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input: "",
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fail: true,
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}, {
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input: "abc",
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fail: true,
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}, {
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input: "30s",
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fail: true,
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}, {
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input: "123",
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result: time.Unix(123, 0),
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}, {
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input: "123.123",
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result: time.Unix(123, 123000000),
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}, {
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input: "123.123",
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result: time.Unix(123, 123000000),
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}, {
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input: "2015-06-03T13:21:58.555Z",
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result: ts,
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}, {
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input: "2015-06-03T14:21:58.555+01:00",
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result: ts,
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},
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}
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for _, test := range tests {
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ts, err := parseTime(test.input)
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if err != nil && !test.fail {
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t.Errorf("Unexpected error for %q: %s", test.input, err)
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continue
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}
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if err == nil && test.fail {
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t.Errorf("Expected error for %q but got none", test.input)
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continue
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}
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res := clientmodel.TimestampFromTime(test.result)
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if !test.fail && ts != res {
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t.Errorf("Expected time %v for input %q but got %v", res, test.input, ts)
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}
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}
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}
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func TestParseDuration(t *testing.T) {
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var tests = []struct {
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input string
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fail bool
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result time.Duration
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}{
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{
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input: "",
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fail: true,
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}, {
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input: "abc",
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fail: true,
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}, {
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input: "2015-06-03T13:21:58.555Z",
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fail: true,
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}, {
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input: "123",
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result: 123 * time.Second,
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}, {
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input: "123.333",
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result: 123*time.Second + 333*time.Millisecond,
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}, {
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input: "15s",
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result: 15 * time.Second,
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}, {
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input: "5m",
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result: 5 * time.Minute,
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},
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}
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for _, test := range tests {
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d, err := parseDuration(test.input)
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if err != nil && !test.fail {
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t.Errorf("Unexpected error for %q: %s", test.input, err)
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continue
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}
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if err == nil && test.fail {
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t.Errorf("Expected error for %q but got none", test.input)
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continue
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}
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if !test.fail && d != test.result {
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t.Errorf("Expected duration %v for input %q but got %v", test.result, test.input, d)
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}
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}
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}
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