func TestCommand_Describe(t *testing.T) {
fakeApi := mocks.NewFakeApi()
fakeApi.AddPair(api.TaggedMetric{"series_0", api.ParseTagSet("dc=west,env=production,host=a")}, emptyGraphiteName)
fakeApi.AddPair(api.TaggedMetric{"series_0", api.ParseTagSet("dc=west,env=staging,host=b")}, emptyGraphiteName)
fakeApi.AddPair(api.TaggedMetric{"series_0", api.ParseTagSet("dc=east,env=production,host=c")}, emptyGraphiteName)
fakeApi.AddPair(api.TaggedMetric{"series_0", api.ParseTagSet("dc=east,env=staging,host=d")}, emptyGraphiteName)
for _, test := range []struct {
query string
backend api.API
length int // expected length of the result.
}{
{"describe series_0", fakeApi, 4},
{"describe`series_0`", fakeApi, 4},
{"describe series_0 where dc='west'", fakeApi, 2},
{"describe`series_0`where(dc='west')", fakeApi, 2},
{"describe series_0 where dc='west' or env = 'production'", fakeApi, 3},
{"describe series_0 where`dc`='west'or`env`='production'", fakeApi, 3},
{"describe series_0 where dc='west' or env = 'production' and doesnotexist = ''", fakeApi, 2},
{"describe series_0 where env = 'production' and doesnotexist = '' or dc = 'west'", fakeApi, 2},
{"describe series_0 where (dc='west' or env = 'production') and doesnotexist = ''", fakeApi, 0},
{"describe series_0 where(dc='west' or env = 'production')and`doesnotexist` = ''", fakeApi, 0},
} {
a := assert.New(t).Contextf("query=%s", test.query)
command, err := Parse(test.query)
if err != nil {
a.Errorf("Unexpected error while parsing")
continue
}
a.EqString(command.Name(), "describe")
rawResult, _ := command.Execute(ExecutionContext{Backend: nil, API: test.backend, FetchLimit: 1000, Timeout: 0})
parsedResult := rawResult.([]string)
a.EqInt(len(parsedResult), test.length)
}
}
func TestCommand_DescribeAll(t *testing.T) {
fakeApi := mocks.NewFakeApi()
fakeApi.AddPair(api.TaggedMetric{"series_0", api.ParseTagSet("")}, emptyGraphiteName)
fakeApi.AddPair(api.TaggedMetric{"series_1", api.ParseTagSet("")}, emptyGraphiteName)
fakeApi.AddPair(api.TaggedMetric{"series_2", api.ParseTagSet("")}, emptyGraphiteName)
fakeApi.AddPair(api.TaggedMetric{"series_3", api.ParseTagSet("")}, emptyGraphiteName)
for _, test := range []struct {
query string
backend api.API
expected []api.MetricKey
}{
{"describe all", fakeApi, []api.MetricKey{"series_0", "series_1", "series_2", "series_3"}},
{"describe all match '_0'", fakeApi, []api.MetricKey{"series_0"}},
{"describe all match '_5'", fakeApi, []api.MetricKey{}},
} {
a := assert.New(t).Contextf("query=%s", test.query)
command, err := Parse(test.query)
if err != nil {
a.Errorf("Unexpected error while parsing")
continue
}
a.EqString(command.Name(), "describe all")
rawResult, err := command.Execute(ExecutionContext{Backend: nil, API: test.backend, FetchLimit: 1000, Timeout: 0})
a.CheckError(err)
a.Eq(rawResult, test.expected)
}
}
func TestCommand_Describe(t *testing.T) {
fakeApi := mocks.NewFakeApi()
fakeApi.AddPair(api.TaggedMetric{"series_0", api.ParseTagSet("dc=west,env=production,host=a")}, emptyGraphiteName)
fakeApi.AddPair(api.TaggedMetric{"series_0", api.ParseTagSet("dc=west,env=staging,host=b")}, emptyGraphiteName)
fakeApi.AddPair(api.TaggedMetric{"series_0", api.ParseTagSet("dc=east,env=production,host=c")}, emptyGraphiteName)
fakeApi.AddPair(api.TaggedMetric{"series_0", api.ParseTagSet("dc=east,env=staging,host=d")}, emptyGraphiteName)
for _, test := range []struct {
query string
backend api.API
expected map[string][]string
}{
{"describe series_0", fakeApi, map[string][]string{"dc": {"east", "west"}, "env": {"production", "staging"}, "host": {"a", "b", "c", "d"}}},
{"describe`series_0`", fakeApi, map[string][]string{"dc": {"east", "west"}, "env": {"production", "staging"}, "host": {"a", "b", "c", "d"}}},
{"describe series_0 where dc='west'", fakeApi, map[string][]string{"dc": {"west"}, "env": {"production", "staging"}, "host": {"a", "b"}}},
{"describe`series_0`where(dc='west')", fakeApi, map[string][]string{"dc": {"west"}, "env": {"production", "staging"}, "host": {"a", "b"}}},
{"describe series_0 where dc='west' or env = 'production'", fakeApi, map[string][]string{"dc": {"east", "west"}, "env": {"production", "staging"}, "host": {"a", "b", "c"}}},
{"describe series_0 where`dc`='west'or`env`='production'", fakeApi, map[string][]string{"dc": {"east", "west"}, "env": {"production", "staging"}, "host": {"a", "b", "c"}}},
{"describe series_0 where dc='west' or env = 'production' and doesnotexist = ''", fakeApi, map[string][]string{"dc": {"west"}, "env": {"production", "staging"}, "host": {"a", "b"}}},
{"describe series_0 where env = 'production' and doesnotexist = '' or dc = 'west'", fakeApi, map[string][]string{"dc": {"west"}, "env": {"production", "staging"}, "host": {"a", "b"}}},
{"describe series_0 where (dc='west' or env = 'production') and doesnotexist = ''", fakeApi, map[string][]string{}},
{"describe series_0 where(dc='west' or env = 'production')and`doesnotexist` = ''", fakeApi, map[string][]string{}},
} {
a := assert.New(t).Contextf("query=%s", test.query)
command, err := Parse(test.query)
if err != nil {
a.Errorf("Unexpected error while parsing")
continue
}
a.EqString(command.Name(), "describe")
rawResult, _ := command.Execute(ExecutionContext{Backend: nil, API: test.backend, FetchLimit: 1000, Timeout: 0})
a.Eq(rawResult, test.expected)
}
}
func TestMovingAverage(t *testing.T) {
fakeAPI := mocks.NewFakeApi()
fakeAPI.AddPair(api.TaggedMetric{"series", api.NewTagSet()}, "series")
fakeBackend := movingAverageBackend{}
timerange, err := api.NewTimerange(1200, 1500, 100)
if err != nil {
t.Fatalf(err.Error())
}
expression := &functionExpression{
functionName: "transform.moving_average",
groupBy: []string{},
arguments: []function.Expression{
&metricFetchExpression{"series", api.TruePredicate},
durationExpression{"300ms", 300 * time.Millisecond},
},
}
result, err := evaluateToSeriesList(expression,
function.EvaluationContext{
API: fakeAPI,
MultiBackend: backend.NewSequentialMultiBackend(fakeBackend),
Timerange: timerange,
SampleMethod: api.SampleMean,
FetchLimit: function.NewFetchCounter(1000),
Registry: registry.Default(),
})
if err != nil {
t.Errorf(err.Error())
}
expected := []float64{4, 3, 11.0 / 3, 5}
if len(result.Series) != 1 {
t.Fatalf("expected exactly 1 returned series")
}
if len(result.Series[0].Values) != len(expected) {
t.Fatalf("expected exactly %d values in returned series", len(expected))
}
const eps = 1e-7
for i := range expected {
if math.Abs(result.Series[0].Values[i]-expected[i]) > eps {
t.Fatalf("expected %+v but got %+v", expected, result.Series[0].Values)
}
}
}
func TestTag(t *testing.T) {
fakeApi := mocks.NewFakeApi()
fakeBackend := backend.NewSequentialMultiBackend(fakeApiBackend{})
tests := []struct {
query string
expected api.SeriesList
}{
{
query: "select series_2 | tag.drop('dc') from 0 to 120",
expected: api.SeriesList{
Series: []api.Timeseries{
{
Values: []float64{1, 2, 3, 4, 5},
TagSet: api.TagSet{},
},
{
Values: []float64{3, 0, 3, 6, 2},
TagSet: api.TagSet{},
},
},
},
},
{
query: "select series_2 | tag.drop('none') from 0 to 120",
expected: api.SeriesList{
Series: []api.Timeseries{
{
Values: []float64{1, 2, 3, 4, 5},
TagSet: api.TagSet{"dc": "west"},
},
{
Values: []float64{3, 0, 3, 6, 2},
TagSet: api.TagSet{"dc": "east"},
},
},
},
},
{
query: "select series_2 | tag.set('dc', 'north') from 0 to 120",
expected: api.SeriesList{
Series: []api.Timeseries{
{
Values: []float64{1, 2, 3, 4, 5},
TagSet: api.TagSet{"dc": "north"},
},
{
Values: []float64{3, 0, 3, 6, 2},
TagSet: api.TagSet{"dc": "north"},
},
},
},
},
{
query: "select series_2 | tag.set('none', 'north') from 0 to 120",
expected: api.SeriesList{
Series: []api.Timeseries{
{
Values: []float64{1, 2, 3, 4, 5},
TagSet: api.TagSet{"dc": "west", "none": "north"},
},
{
Values: []float64{3, 0, 3, 6, 2},
TagSet: api.TagSet{"dc": "east", "none": "north"},
},
},
},
},
}
for _, test := range tests {
command, err := Parse(test.query)
if err != nil {
t.Fatalf("Unexpected error while parsing")
return
}
if command.Name() != "select" {
t.Errorf("Expected select command but got %s", command.Name())
continue
}
rawResult, err := command.Execute(ExecutionContext{Backend: fakeBackend, API: fakeApi, FetchLimit: 1000, Timeout: 0})
if err != nil {
t.Errorf("Unexpected error while execution: %s", err.Error())
continue
}
seriesListList, ok := rawResult.([]api.SeriesList)
if !ok || len(seriesListList) != 1 {
t.Errorf("expected query `%s` to produce []value; got %+v :: %T", test.query, rawResult, rawResult)
continue
}
list := seriesListList[0]
if err != nil {
t.Fatal(err)
}
a := assert.New(t)
expectedSeries := test.expected.Series
for i, series := range list.Series {
a.EqFloatArray(series.Values, expectedSeries[i].Values, 1e-100)
if !series.TagSet.Equals(expectedSeries[i].TagSet) {
t.Errorf("expected tagset %+v but got %+v for series %d of query %s", expectedSeries[i].TagSet, series.TagSet, i, test.query)
}
}
}
}
func TestNaming(t *testing.T) {
fakeApi := mocks.NewFakeApi()
fakeBackend := backend.NewSequentialMultiBackend(fakeApiBackend{})
tests := []struct {
query string
expected string
}{
{
query: "select series_1 from 0 to 0",
expected: "series_1",
},
{
query: "select series_1 + 17 from 0 to 0",
expected: "(series_1 + 17)",
},
{
query: "select series_1 + 2342.32 from 0 to 0",
expected: "(series_1 + 2342.32)",
},
{
query: "select series_1*17 from 0 to 0",
expected: "(series_1 * 17)",
},
{
query: "select aggregate.sum(series_1) from 0 to 0",
expected: "aggregate.sum(series_1)",
},
{
query: "select aggregate.sum(series_1 group by dc) from 0 to 0",
expected: "aggregate.sum(series_1 group by dc)",
},
{
query: "select aggregate.sum(series_1 group by dc,env) from 0 to 0",
expected: "aggregate.sum(series_1 group by dc, env)",
},
{
query: "select aggregate.sum(series_1 collapse by dc) from 0 to 0",
expected: "aggregate.sum(series_1 collapse by dc)",
},
{
query: "select aggregate.sum(series_1 collapse by dc,env) from 0 to 0",
expected: "aggregate.sum(series_1 collapse by dc, env)",
},
{
query: "select transform.alias(aggregate.sum(series_1 group by dc,env), 'hello') from 0 to 0",
expected: "hello",
},
{
query: "select transform.moving_average(series_2, 2h) from 0 to 0",
expected: "transform.moving_average(series_2, 2h)",
},
{
query: "select filter.lowest_max(series_2, 6) from 0 to 0",
expected: "filter.lowest_max(series_2, 6)",
},
}
for _, test := range tests {
command, err := Parse(test.query)
if err != nil {
t.Fatalf("Unexpected error while parsing")
return
}
if command.Name() != "select" {
t.Errorf("Expected select command but got %s", command.Name())
continue
}
rawResult, err := command.Execute(ExecutionContext{Backend: fakeBackend, API: fakeApi, FetchLimit: 1000, Timeout: 0})
if err != nil {
t.Errorf("Unexpected error while execution: %s", err.Error())
continue
}
seriesListList, ok := rawResult.([]api.SeriesList)
if !ok || len(seriesListList) != 1 {
t.Errorf("expected query `%s` to produce []value; got %+v :: %T", test.query, rawResult, rawResult)
continue
}
actual := seriesListList[0].Name
if actual != test.expected {
t.Errorf("Expected `%s` but got `%s` for query `%s`", test.expected, actual, test.query)
continue
}
}
}
func TestCommand_Select(t *testing.T) {
epsilon := 1e-10
fakeApi := mocks.NewFakeApi()
fakeApi.AddPair(api.TaggedMetric{"series_1", api.ParseTagSet("dc=west")}, emptyGraphiteName)
fakeApi.AddPair(api.TaggedMetric{"series_2", api.ParseTagSet("dc=east")}, emptyGraphiteName)
fakeApi.AddPair(api.TaggedMetric{"series_2", api.ParseTagSet("dc=west")}, emptyGraphiteName)
fakeApi.AddPair(api.TaggedMetric{"series_3", api.ParseTagSet("dc=west")}, emptyGraphiteName)
fakeApi.AddPair(api.TaggedMetric{"series_3", api.ParseTagSet("dc=east")}, emptyGraphiteName)
fakeApi.AddPair(api.TaggedMetric{"series_3", api.ParseTagSet("dc=north")}, emptyGraphiteName)
fakeApi.AddPair(api.TaggedMetric{"series_timeout", api.ParseTagSet("dc=west")}, emptyGraphiteName)
var fakeBackend fakeApiBackend
testTimerange, err := api.NewTimerange(0, 120, 30)
if err != nil {
t.Errorf("Invalid test timerange")
return
}
earlyTimerange, err := api.NewTimerange(0, 60, 30)
if err != nil {
t.Errorf("Invalid test timerange")
}
lateTimerange, err := api.NewTimerange(60, 120, 30)
if err != nil {
t.Errorf("Invalid test timerange")
}
for _, test := range []struct {
query string
expectError bool
expected api.SeriesList
}{
{"select does_not_exist from 0 to 120 resolution 30ms", true, api.SeriesList{}},
{"select series_1 from 0 to 120 resolution 30ms", false, api.SeriesList{
Series: []api.Timeseries{{
[]float64{1, 2, 3, 4, 5},
api.ParseTagSet("dc=west"),
}},
Timerange: testTimerange,
Name: "series_1",
}},
{"select series_timeout from 0 to 120 resolution 30ms", true, api.SeriesList{}},
{"select series_1 + 1 from 0 to 120 resolution 30ms", false, api.SeriesList{
Series: []api.Timeseries{{
[]float64{2, 3, 4, 5, 6},
api.ParseTagSet("dc=west"),
}},
Timerange: testTimerange,
Name: "",
}},
{"select series_1 * 2 from 0 to 120 resolution 30ms", false, api.SeriesList{
Series: []api.Timeseries{{
[]float64{2, 4, 6, 8, 10},
api.ParseTagSet("dc=west"),
}},
Timerange: testTimerange,
Name: "",
}},
{"select aggregate.max(series_2) from 0 to 120 resolution 30ms", false, api.SeriesList{
Series: []api.Timeseries{{
[]float64{3, 2, 3, 6, 5},
api.NewTagSet(),
}},
Timerange: testTimerange,
Name: "series_2",
}},
{"select (1 + series_2) | aggregate.max from 0 to 120 resolution 30ms", false, api.SeriesList{
Series: []api.Timeseries{{
[]float64{4, 3, 4, 7, 6},
api.NewTagSet(),
}},
Timerange: testTimerange,
Name: "series_2",
}},
{"select series_1 from 0 to 60 resolution 30ms", false, api.SeriesList{
Series: []api.Timeseries{{
[]float64{1, 2, 3},
api.ParseTagSet("dc=west"),
}},
Timerange: earlyTimerange,
Name: "series_1",
}},
{"select transform.timeshift(series_1,31ms) from 0 to 60 resolution 30ms", false, api.SeriesList{
Series: []api.Timeseries{{
[]float64{2, 3, 4},
api.ParseTagSet("dc=west"),
}},
Timerange: earlyTimerange,
Name: "series_1",
}},
{"select transform.timeshift(series_1,62ms) from 0 to 60 resolution 30ms", false, api.SeriesList{
Series: []api.Timeseries{{
[]float64{3, 4, 5},
api.ParseTagSet("dc=west"),
}},
Timerange: earlyTimerange,
Name: "series_1",
}},
{"select transform.timeshift(series_1,29ms) from 0 to 60 resolution 30ms", false, api.SeriesList{
Series: []api.Timeseries{{
[]float64{2, 3, 4},
api.ParseTagSet("dc=west"),
}},
Timerange: earlyTimerange,
Name: "series_1",
}},
{"select transform.timeshift(series_1,-31ms) from 60 to 120 resolution 30ms", false, api.SeriesList{
Series: []api.Timeseries{{
[]float64{2, 3, 4},
api.ParseTagSet("dc=west"),
}},
Timerange: lateTimerange,
Name: "series_1",
}},
{"select transform.timeshift(series_1,-29ms) from 60 to 120 resolution 30ms", false, api.SeriesList{
Series: []api.Timeseries{{
[]float64{2, 3, 4},
api.ParseTagSet("dc=west"),
}},
Timerange: lateTimerange,
Name: "series_1",
}},
{"select series_3 from 0 to 120 resolution 30ms", false, api.SeriesList{
Series: []api.Timeseries{
{
[]float64{1, 1, 1, 4, 4},
api.ParseTagSet("dc=west"),
},
{
[]float64{5, 5, 5, 2, 2},
api.ParseTagSet("dc=east"),
},
{
[]float64{3, 3, 3, 3, 3},
api.ParseTagSet("dc=north"),
},
},
}},
{"select series_3 | filter.recent_highest_max(3, 30ms) from 0 to 120 resolution 30ms", false, api.SeriesList{
Series: []api.Timeseries{
{
[]float64{1, 1, 1, 4, 4},
api.ParseTagSet("dc=west"),
},
{
[]float64{3, 3, 3, 3, 3},
api.ParseTagSet("dc=north"),
},
{
[]float64{5, 5, 5, 2, 2},
api.ParseTagSet("dc=east"),
},
},
}},
{"select series_3 | filter.recent_highest_max(2, 30ms) from 0 to 120 resolution 30ms", false, api.SeriesList{
Series: []api.Timeseries{
{
[]float64{1, 1, 1, 4, 4},
api.ParseTagSet("dc=west"),
},
{
[]float64{3, 3, 3, 3, 3},
api.ParseTagSet("dc=north"),
},
},
}},
{"select series_3 | filter.recent_highest_max(1, 30ms) from 0 to 120 resolution 30ms", false, api.SeriesList{
Series: []api.Timeseries{
{
[]float64{1, 1, 1, 4, 4},
api.ParseTagSet("dc=west"),
},
},
}},
{"select series_3 | filter.recent_lowest_max(3, 30ms) from 0 to 120 resolution 30ms", false, api.SeriesList{
Series: []api.Timeseries{
{
[]float64{5, 5, 5, 2, 2},
api.ParseTagSet("dc=east"),
},
{
[]float64{3, 3, 3, 3, 3},
api.ParseTagSet("dc=north"),
},
{
[]float64{1, 1, 1, 4, 4},
api.ParseTagSet("dc=west"),
},
},
}},
{"select series_3 | filter.recent_lowest_max(4, 30ms) from 0 to 120 resolution 30ms", false, api.SeriesList{
Series: []api.Timeseries{
{
[]float64{5, 5, 5, 2, 2},
api.ParseTagSet("dc=east"),
},
{
[]float64{3, 3, 3, 3, 3},
api.ParseTagSet("dc=north"),
},
{
[]float64{1, 1, 1, 4, 4},
api.ParseTagSet("dc=west"),
},
},
}},
{"select series_3 | filter.recent_highest_max(70, 30ms) from 0 to 120 resolution 30ms", false, api.SeriesList{
Series: []api.Timeseries{
{
[]float64{1, 1, 1, 4, 4},
api.ParseTagSet("dc=west"),
},
{
[]float64{3, 3, 3, 3, 3},
api.ParseTagSet("dc=north"),
},
{
[]float64{5, 5, 5, 2, 2},
api.ParseTagSet("dc=east"),
},
},
}},
{"select series_3 | filter.recent_lowest_max(2, 30ms) from 0 to 120 resolution 30ms", false, api.SeriesList{
Series: []api.Timeseries{
{
[]float64{5, 5, 5, 2, 2},
api.ParseTagSet("dc=east"),
},
{
[]float64{3, 3, 3, 3, 3},
api.ParseTagSet("dc=north"),
},
},
}},
{"select series_3 | filter.recent_lowest_max(1, 30ms) from 0 to 120 resolution 30ms", false, api.SeriesList{
Series: []api.Timeseries{
{
[]float64{5, 5, 5, 2, 2},
api.ParseTagSet("dc=east"),
},
},
}},
{"select series_3 | filter.recent_highest_max(3, 3000ms) from 0 to 120 resolution 30ms", false, api.SeriesList{
Series: []api.Timeseries{
{
[]float64{5, 5, 5, 2, 2},
api.ParseTagSet("dc=east"),
},
{
[]float64{1, 1, 1, 4, 4},
api.ParseTagSet("dc=west"),
},
{
[]float64{3, 3, 3, 3, 3},
api.ParseTagSet("dc=north"),
},
},
}},
{"select series_3 | filter.recent_highest_max(2, 3000ms) from 0 to 120 resolution 30ms", false, api.SeriesList{
Series: []api.Timeseries{
{
[]float64{5, 5, 5, 2, 2},
api.ParseTagSet("dc=east"),
},
{
[]float64{1, 1, 1, 4, 4},
api.ParseTagSet("dc=west"),
},
},
}},
{"select series_3 | filter.recent_highest_max(1, 3000ms) from 0 to 120 resolution 30ms", false, api.SeriesList{
Series: []api.Timeseries{
{
[]float64{5, 5, 5, 2, 2},
api.ParseTagSet("dc=east"),
},
},
}},
{"select series_3 | filter.recent_lowest_max(3, 3000ms) from 0 to 120 resolution 30ms", false, api.SeriesList{
Series: []api.Timeseries{
{
[]float64{3, 3, 3, 3, 3},
api.ParseTagSet("dc=north"),
},
{
[]float64{1, 1, 1, 4, 4},
api.ParseTagSet("dc=west"),
},
{
[]float64{5, 5, 5, 2, 2},
api.ParseTagSet("dc=east"),
},
},
}},
{"select series_3 | filter.recent_lowest_max(2, 3000ms) from 0 to 120 resolution 30ms", false, api.SeriesList{
Series: []api.Timeseries{
{
[]float64{3, 3, 3, 3, 3},
api.ParseTagSet("dc=north"),
},
{
[]float64{1, 1, 1, 4, 4},
api.ParseTagSet("dc=west"),
},
},
}},
{"select series_3 | filter.recent_lowest_max(1, 3000ms) from 0 to 120 resolution 30ms", false, api.SeriesList{
Series: []api.Timeseries{
{
[]float64{3, 3, 3, 3, 3},
api.ParseTagSet("dc=north"),
},
},
}},
{"select series_1 from -1000d to now resolution 30s", true, api.SeriesList{}},
} {
a := assert.New(t).Contextf("query=%s", test.query)
expected := test.expected
command, err := Parse(test.query)
if err != nil {
a.Errorf("Unexpected error while parsing")
continue
}
a.EqString(command.Name(), "select")
rawResult, err := command.Execute(ExecutionContext{
Backend: backend.NewSequentialMultiBackend(fakeBackend),
API: fakeApi,
FetchLimit: 1000,
Timeout: 10 * time.Millisecond,
})
if err != nil {
if !test.expectError {
a.Errorf("Unexpected error while executing: %s", err.Error())
}
} else {
casted := rawResult.([]function.Value)
actual, _ := casted[0].ToSeriesList(api.Timerange{})
a.EqInt(len(actual.Series), len(expected.Series))
if len(actual.Series) == len(expected.Series) {
for i := 0; i < len(expected.Series); i++ {
a.Eq(actual.Series[i].TagSet, expected.Series[i].TagSet)
actualLength := len(actual.Series[i].Values)
expectedLength := len(actual.Series[i].Values)
a.Eq(actualLength, expectedLength)
if actualLength == expectedLength {
for j := 0; j < actualLength; j++ {
a.EqFloat(actual.Series[i].Values[j], expected.Series[i].Values[j], epsilon)
}
}
}
}
}
}
// Test that the limit is correct
command, err := Parse("select series_1, series_2 from 0 to 120 resolution 30ms")
if err != nil {
t.Fatalf("Unexpected error while parsing")
return
}
context := ExecutionContext{Backend: backend.NewSequentialMultiBackend(fakeBackend), API: fakeApi, FetchLimit: 3, Timeout: 0}
_, err = command.Execute(context)
if err != nil {
t.Fatalf("expected success with limit 3 but got err = %s", err.Error())
return
}
context.FetchLimit = 2
_, err = command.Execute(context)
if err == nil {
t.Fatalf("expected failure with limit = 2")
return
}
command, err = Parse("select series2 from 0 to 120 resolution 30ms")
if err != nil {
t.Fatalf("Unexpected error while parsing")
return
}
_, err = command.Execute(context)
if err != nil {
t.Fatalf("expected success with limit = 2 but got %s", err.Error())
}
}
func Test_Blueflood(t *testing.T) {
timerange, err := api.NewTimerange(12000, 13000, 1000)
if err != nil {
t.Fatalf("invalid testcase timerange")
return
}
defaultClientConfig := Config{
"https://blueflood.url",
"square",
make(map[string]int64),
time.Millisecond,
0,
}
// Not really MIN1440, but that's what default TTLs will get with the Timerange we use
defaultQueryUrl := "https://blueflood.url/v2.0/square/views/some.key.graphite?from=12000&resolution=MIN1440&select=numPoints%2Caverage&to=14000"
for _, test := range []struct {
name string
metricMap map[api.GraphiteMetric]api.TaggedMetric
queryMetric api.TaggedMetric
sampleMethod api.SampleMethod
timerange api.Timerange
clientConfig Config
queryUrl string
queryResponse string
queryResponseCode int
queryDelay time.Duration
expectedErrorCode api.BackendErrorCode
expectedSeriesList api.Timeseries
}{
{
name: "Success case",
metricMap: map[api.GraphiteMetric]api.TaggedMetric{
api.GraphiteMetric("some.key.graphite"): api.TaggedMetric{
MetricKey: api.MetricKey("some.key"),
TagSet: api.ParseTagSet("tag=value"),
},
},
queryMetric: api.TaggedMetric{
MetricKey: api.MetricKey("some.key"),
TagSet: api.ParseTagSet("tag=value"),
},
sampleMethod: api.SampleMean,
timerange: timerange,
queryUrl: defaultQueryUrl,
clientConfig: defaultClientConfig,
queryResponse: `{
"unit": "unknown",
"values": [
{
"numPoints": 1,
"timestamp": 12000,
"average": 5
},
{
"numPoints": 1,
"timestamp": 13000,
"average": 3
}
],
"metadata": {
"limit": null,
"next_href": null,
"count": 2,
"marker": null
}
}`,
expectedSeriesList: api.Timeseries{
Values: []float64{5, 3},
TagSet: api.ParseTagSet("tag=value"),
},
},
{
name: "Failure case - invalid JSON",
metricMap: map[api.GraphiteMetric]api.TaggedMetric{
api.GraphiteMetric("some.key.graphite"): api.TaggedMetric{
MetricKey: api.MetricKey("some.key"),
TagSet: api.ParseTagSet("tag=value"),
},
},
queryMetric: api.TaggedMetric{
MetricKey: api.MetricKey("some.key"),
TagSet: api.ParseTagSet("tag=value"),
},
sampleMethod: api.SampleMean,
timerange: timerange,
clientConfig: defaultClientConfig,
queryUrl: defaultQueryUrl,
queryResponse: `{invalid}`,
expectedErrorCode: api.FetchIOError,
},
{
name: "Failure case - HTTP error",
metricMap: map[api.GraphiteMetric]api.TaggedMetric{
api.GraphiteMetric("some.key.graphite"): api.TaggedMetric{
MetricKey: api.MetricKey("some.key"),
TagSet: api.ParseTagSet("tag=value"),
},
},
queryMetric: api.TaggedMetric{
MetricKey: api.MetricKey("some.key"),
TagSet: api.ParseTagSet("tag=value"),
},
sampleMethod: api.SampleMean,
timerange: timerange,
clientConfig: defaultClientConfig,
queryUrl: defaultQueryUrl,
queryResponse: `{}`,
queryResponseCode: 400,
expectedErrorCode: api.FetchIOError,
},
{
name: "Failure case - timeout",
metricMap: map[api.GraphiteMetric]api.TaggedMetric{
api.GraphiteMetric("some.key.graphite"): api.TaggedMetric{
MetricKey: api.MetricKey("some.key"),
TagSet: api.ParseTagSet("tag=value"),
},
},
queryMetric: api.TaggedMetric{
MetricKey: api.MetricKey("some.key"),
TagSet: api.ParseTagSet("tag=value"),
},
sampleMethod: api.SampleMean,
timerange: timerange,
clientConfig: defaultClientConfig,
queryUrl: defaultQueryUrl,
queryResponse: `{}`,
queryDelay: 1 * time.Second,
expectedErrorCode: api.FetchTimeoutError,
},
} {
a := assert.New(t).Contextf("%s", test.name)
fakeApi := mocks.NewFakeApi()
for k, v := range test.metricMap {
fakeApi.AddPair(v, k)
}
fakeHttpClient := mocks.NewFakeHttpClient()
code := test.queryResponseCode
if code == 0 {
code = http.StatusOK
}
fakeHttpClient.SetResponse(test.queryUrl, mocks.Response{test.queryResponse, test.queryDelay, code})
b := NewBlueflood(test.clientConfig).(*blueflood)
b.client = fakeHttpClient
seriesList, err := b.FetchSingleSeries(api.FetchSeriesRequest{
Metric: test.queryMetric,
SampleMethod: test.sampleMethod,
Timerange: test.timerange,
API: fakeApi,
Cancellable: api.NewCancellable(),
})
if test.expectedErrorCode != 0 {
if err == nil {
a.Errorf("Expected error, but was successful.")
continue
}
berr, ok := err.(api.BackendError)
if !ok {
a.Errorf("Failed to cast error to BackendError")
continue
}
a.Eq(berr.Code, test.expectedErrorCode)
} else {
if err != nil {
a.CheckError(err)
continue
}
a.Eq(seriesList, test.expectedSeriesList)
}
}
}
func TestFullResolutionDataFilling(t *testing.T) {
// The queries have to be relative to "now"
defaultClientConfig := Config{
"https://blueflood.url",
"square",
make(map[string]int64),
time.Millisecond,
14400,
}
baseTime := 1438734300000
regularQueryURL := fmt.Sprintf(
"https://blueflood.url/v2.0/square/views/some.key.value?from=%d&resolution=MIN5&select=numPoints%%2Caverage&to=%d",
baseTime-300*1000*10, // 50 minutes ago
baseTime-300*1000*3, // 15 minutes ago
)
regularResponse := fmt.Sprintf(`{
"unit": "unknown",
"values": [
{
"numPoints": 28,
"timestamp": %d,
"average": 100
},
{
"numPoints": 29,
"timestamp": %d,
"average": 142
},
{
"numPoints": 27,
"timestamp": %d,
"average": 138
},
{
"numPoints": 28,
"timestamp": %d,
"average": 182
}
],
"metadata": {
"limit": null,
"next_href": null,
"count": 4,
"marker": null
}
}`,
baseTime-300*1000*10, // 50 minutes ago
baseTime-300*1000*9, // 45 minutes ago
baseTime-300*1000*8, // 40 minutes ago
baseTime-300*1000*7, // 35 minutes ago
)
fullResolutionQueryURL := fmt.Sprintf(
"https://blueflood.url/v2.0/square/views/some.key.value?from=%d&resolution=FULL&select=numPoints%%2Caverage&to=%d",
baseTime-300*1000*10, // 50 minutes ago
baseTime-300*1000*3, // 15 minutes ago
)
fullResolutionResponse := fmt.Sprintf(`{
"unit": "unknown",
"values": [
{
"numPoints": 28,
"timestamp": %d,
"average": 13
},
{
"numPoints": 29,
"timestamp": %d,
"average": 16
},
{
"numPoints": 27,
"timestamp": %d,
"average": 19
},
{
"numPoints": 28,
"timestamp": %d,
"average": 27
}
],
"metadata": {
"limit": null,
"next_href": null,
"count": 4,
"marker": null
}
}`,
baseTime-300*1000*6, // 30m ago
baseTime-300*1000*5+17, // 25m ago with random shuffling
baseTime-300*1000*4+2821, // 20m ago with random shuffling
baseTime-300*1000*3, // 15m ago
)
fakeHttpClient := mocks.NewFakeHttpClient()
fakeHttpClient.SetResponse(regularQueryURL, mocks.Response{regularResponse, 0, http.StatusOK})
fakeHttpClient.SetResponse(fullResolutionQueryURL, mocks.Response{fullResolutionResponse, 0, http.StatusOK})
fakeApi := mocks.NewFakeApi()
fakeApi.AddPair(
api.TaggedMetric{
MetricKey: api.MetricKey("some.key"),
TagSet: api.ParseTagSet("tag=value"),
},
api.GraphiteMetric("some.key.value"),
)
b := NewBlueflood(defaultClientConfig).(*blueflood)
b.client = fakeHttpClient
queryTimerange, err := api.NewSnappedTimerange(
int64(baseTime)-300*1000*10, // 50 minutes ago
int64(baseTime)-300*1000*4, // 20 minutes ago
300*1000, // 5 minute resolution
)
if err != nil {
t.Fatalf("timerange error: %s", err.Error())
}
seriesList, err := b.FetchSingleSeries(api.FetchSeriesRequest{
Metric: api.TaggedMetric{
MetricKey: api.MetricKey("some.key"),
TagSet: api.ParseTagSet("tag=value"),
},
SampleMethod: api.SampleMean,
Timerange: queryTimerange,
API: fakeApi,
Cancellable: api.NewCancellable(),
})
if err != nil {
t.Fatalf("Expected success, but got error: %s", err.Error())
}
expected := []float64{100, 142, 138, 182, 13, 16, 19}
if len(seriesList.Values) != len(expected) {
t.Fatalf("Expected %+v but got %+v", expected, seriesList)
}
for i, expect := range expected {
if seriesList.Values[i] != expect {
t.Fatalf("Expected %+v but got %+v", expected, seriesList)
}
}
}