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 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 Test_TagIndex(t *testing.T) {
a := assert.New(t)
db := newDatabase(t)
if db == nil {
return
}
defer cleanDatabase(t, db)
if db == nil {
return
}
if rows, err := db.GetMetricKeys("environment", "production"); err != nil {
a.CheckError(err)
} else {
a.EqInt(len(rows), 0)
}
a.CheckError(db.AddToTagIndex("environment", "production", "a.b.c"))
a.CheckError(db.AddToTagIndex("environment", "production", "d.e.f"))
if rows, err := db.GetMetricKeys("environment", "production"); err != nil {
a.CheckError(err)
} else {
a.EqInt(len(rows), 2)
}
a.CheckError(db.RemoveFromTagIndex("environment", "production", "a.b.c"))
if rows, err := db.GetMetricKeys("environment", "production"); err != nil {
a.CheckError(err)
} else {
a.EqInt(len(rows), 1)
a.EqString(string(rows[0]), "d.e.f")
}
}
func TestFunctionName(t *testing.T) {
a := assert.New(t)
a.EqString(functionName(0), "TestFunctionName")
first, second := testFunction1()
a.EqString(first, "testFunction1")
a.EqString(second, "TestFunctionName")
}
func TestCompile_Good(t *testing.T) {
a := assert.New(t)
_, err := Compile(RawRule{
Pattern: "prefix.%foo%",
MetricKeyPattern: "test-metric",
})
a.CheckError(err)
}
func checkConversionErrorCode(t *testing.T, err error, expected ConversionErrorCode) {
casted, ok := err.(ConversionError)
if !ok {
t.Errorf("Invalid Error type")
return
}
a := assert.New(t)
a.EqInt(int(casted.Code()), int(expected))
}
func TestCompile(t *testing.T) {
for _, row := range inputs {
a := assert.New(t).Contextf(row)
p := Parser{Buffer: row}
p.Init()
a.CheckError(p.Parse())
p.Execute()
testParserResult(a, p)
}
}
func TestUnescapeLiteral(t *testing.T) {
a := assert.New(t)
a.EqString(unescapeLiteral("'foo'"), "foo")
a.EqString(unescapeLiteral("foo"), "foo")
a.EqString(unescapeLiteral("nodes.cpu.io"), "nodes.cpu.io")
a.EqString(unescapeLiteral(`"hello"`), `hello`)
a.EqString(unescapeLiteral(`"\"hello\""`), `"hello"`)
a.EqString(unescapeLiteral(`'\"hello\"'`), `"hello"`)
a.EqString(unescapeLiteral("\"\\`\""), "`")
}
func Test_Registry_Default(t *testing.T) {
a := assert.New(t)
sr := StandardRegistry{mapping: make(map[string]function.MetricFunction)}
a.Eq(sr.All(), []string{})
if err := sr.Register(function.MetricFunction{Name: "foo", Compute: dummyCompute}); err != nil {
a.CheckError(err)
}
if err := sr.Register(function.MetricFunction{Name: "bar", Compute: dummyCompute}); err != nil {
a.CheckError(err)
}
a.Eq(sr.All(), []string{"bar", "foo"})
}
func TestRandom(t *testing.T) {
a := assert.New(t)
expected := []string{"Apple", "apple", "file2", "file22", "file90", "file99", "file100", "Zoo", "zoo"}
test := []string{"Apple", "apple", "file2", "file22", "file90", "file99", "file100", "Zoo", "zoo"}
Sort(test)
a.Eq(test, expected)
for i := 0; i < 1000; i++ {
testShuffle(test)
a := a.Contextf("input: %+v", test)
Sort(test)
a.Eq(test, expected)
}
}
func TestLoadYAML_Invalid(t *testing.T) {
a := assert.New(t)
rawYAML := `
rules
-
pattern: foo.bar.baz.%tag%
metric_key: abc
regex: {}
`
ruleSet, err := LoadYAML([]byte(rawYAML))
checkRuleErrorCode(a, err, InvalidYaml)
a.EqInt(len(ruleSet.rules), 0)
}
func TestNaturalSort(t *testing.T) {
a := assert.New(t)
expected := []string{"Apple", "apple", "file2", "file22", "file90", "file99", "file100", "Zoo", "zoo"}
tests := [][]string{
{"Apple", "apple", "file2", "file90", "file99", "file100", "Zoo", "zoo", "file22"},
{"Zoo", "Apple", "apple", "file100", "file2", "file90", "file99", "zoo", "file22"},
{"file2", "file90", "apple", "Zoo", "file100", "file22", "file99", "zoo", "Apple"},
}
Sort([]string{}) // check that no panic occurs
for _, test := range tests {
Sort(test)
a.Eq(test, expected)
}
}
func Test_FetchCounter(t *testing.T) {
c := NewFetchCounter(10)
a := assert.New(t)
a.EqInt(c.Current(), 0)
a.EqInt(c.Limit(), 10)
a.EqBool(c.Consume(5), true)
a.EqInt(c.Current(), 5)
a.EqBool(c.Consume(4), true)
a.EqInt(c.Current(), 9)
a.EqBool(c.Consume(1), true)
a.EqInt(c.Current(), 10)
a.EqBool(c.Consume(1), false)
a.EqInt(c.Current(), 11)
}
func TestLoadYAML(t *testing.T) {
a := assert.New(t)
rawYAML := `
rules:
-
pattern: foo.bar.baz.%tag%
metric_key: abc
regex: {}
`
ruleSet, err := LoadYAML([]byte(rawYAML))
a.CheckError(err)
a.EqInt(len(ruleSet.rules), 1)
a.EqString(string(ruleSet.rules[0].raw.MetricKeyPattern), "abc")
a.Eq(ruleSet.rules[0].graphitePatternTags, []string{"tag"})
}
func Test_ParallelMultiBackend_Success(t *testing.T) {
a := assert.New(t)
suite := newSuite()
defer suite.cleanup()
go func() {
_, err := suite.multiBackend.FetchMultipleSeries(api.FetchMultipleRequest{
Metrics: []api.TaggedMetric{api.TaggedMetric{"a", api.NewTagSet()}},
Cancellable: suite.cancellable,
})
a.CheckError(err)
suite.waitGroup.Done()
}()
suite.backend.tickets <- struct{}{}
suite.waitGroup.Wait()
}
func TestToGraphiteName(t *testing.T) {
a := assert.New(t)
rule, err := Compile(RawRule{
Pattern: "prefix.%foo%",
MetricKeyPattern: "test-metric",
})
a.CheckError(err)
tm := api.TaggedMetric{
MetricKey: "test-metric",
TagSet: api.ParseTagSet("foo=fooValue"),
}
reversed, err := rule.ToGraphiteName(tm)
a.CheckError(err)
a.EqString(string(reversed), "prefix.fooValue")
}
func TestCompile_Error(t *testing.T) {
for _, test := range []struct {
rawRule RawRule
expectedCode RuleErrorCode
}{
{RawRule{Pattern: "prefix.%foo%", MetricKeyPattern: ""}, InvalidMetricKey},
{RawRule{Pattern: "prefix.%foo%abc%", MetricKeyPattern: "test-metric"}, InvalidPattern},
{RawRule{Pattern: "", MetricKeyPattern: "test-metric"}, InvalidPattern},
{RawRule{Pattern: "prefix.%foo%.%foo%", MetricKeyPattern: "test-metric"}, InvalidPattern},
{RawRule{Pattern: "prefix.%foo%.abc.%%", MetricKeyPattern: "test-metric"}, InvalidPattern},
{RawRule{Pattern: "prefix.%foo%", MetricKeyPattern: "test-metric", Regex: map[string]string{"foo": "(bar)"}}, InvalidCustomRegex},
} {
_, err := Compile(test.rawRule)
a := assert.New(t).Contextf("%s", test.rawRule.Pattern)
checkRuleErrorCode(a, err, test.expectedCode)
}
}
func TestTimeseries_Downsample(t *testing.T) {
a := assert.New(t)
for _, suite := range []struct {
input []float64
inputRange Timerange
newRange Timerange
sampler func([]float64) float64
expected []float64
}{
{[]float64{1, 2, 3, 4, 5}, Timerange{0, 4, 1}, Timerange{0, 4, 2}, max, []float64{2, 4, 5}},
} {
tagset := ParseTagSet("key=value")
ts := Timeseries{suite.input, tagset}
sampled, err := ts.downsample(suite.inputRange, suite.newRange, suite.sampler)
a.CheckError(err)
a.Eq(sampled.Values, suite.expected)
}
}
func Test_ScalarExpression(t *testing.T) {
timerangeA, err := api.NewTimerange(0, 10, 2)
if err != nil {
t.Fatalf("invalid timerange used for testcase")
return
}
for _, test := range []struct {
expr scalarExpression
timerange api.Timerange
expectedSeries []api.Timeseries
}{
{
scalarExpression{5},
timerangeA,
[]api.Timeseries{
api.Timeseries{
[]float64{5.0, 5.0, 5.0, 5.0, 5.0, 5.0},
api.NewTagSet(),
},
},
},
} {
a := assert.New(t).Contextf("%+v", test)
result, err := evaluateToSeriesList(test.expr, function.EvaluationContext{
MultiBackend: backend.NewSequentialMultiBackend(FakeBackend{}),
Timerange: test.timerange,
SampleMethod: api.SampleMean,
FetchLimit: function.NewFetchCounter(1000),
Registry: registry.Default(),
})
if err != nil {
t.Fatalf("failed to convert number into serieslist")
}
a.EqInt(len(result.Series), len(test.expectedSeries))
for i := 0; i < len(result.Series); i += 1 {
a.Eq(result.Series[i].Values, test.expectedSeries[i].Values)
}
}
}
func Test_GetAllMetrics(t *testing.T) {
a := assert.New(t)
db := newDatabase(t)
if db == nil {
return
}
defer cleanDatabase(t, db)
a.CheckError(db.AddMetricName("metric.a", api.ParseTagSet("foo=a")))
a.CheckError(db.AddMetricName("metric.a", api.ParseTagSet("foo=b")))
keys, err := db.GetAllMetrics()
a.CheckError(err)
sort.Sort(api.MetricKeys(keys))
a.Eq(keys, []api.MetricKey{"metric.a"})
a.CheckError(db.AddMetricName("metric.b", api.ParseTagSet("foo=c")))
a.CheckError(db.AddMetricName("metric.b", api.ParseTagSet("foo=c")))
keys, err = db.GetAllMetrics()
a.CheckError(err)
sort.Sort(api.MetricKeys(keys))
a.Eq(keys, []api.MetricKey{"metric.a", "metric.b"})
}
func TestMatchRule_FilterTag(t *testing.T) {
a := assert.New(t)
rule, err := Compile(RawRule{
Pattern: "prefix.%foo%.%bar%",
MetricKeyPattern: "test-metric.%bar%",
})
a.CheckError(err)
originalName := "prefix.fooValue.barValue"
matcher, matched := rule.MatchRule(originalName)
if !matched {
t.Errorf("Expected matching but didn't occur")
return
}
a.EqString(string(matcher.MetricKey), "test-metric.barValue")
a.Eq(matcher.TagSet, api.TagSet(map[string]string{"foo": "fooValue"}))
// perform the reverse.
reversed, err := rule.ToGraphiteName(matcher)
a.CheckError(err)
a.EqString(string(reversed), originalName)
}
func TestToGraphiteName_Error(t *testing.T) {
a := assert.New(t)
rule, err := Compile(RawRule{
Pattern: "prefix.%foo%",
MetricKeyPattern: "test-metric",
})
a.CheckError(err)
reversed, err := rule.ToGraphiteName(api.TaggedMetric{
MetricKey: "test-metric",
TagSet: api.ParseTagSet(""),
})
checkConversionErrorCode(t, err, MissingTag)
a.EqString(string(reversed), "")
reversed, err = rule.ToGraphiteName(api.TaggedMetric{
MetricKey: "test-metric-foo",
TagSet: api.ParseTagSet("foo=fooValue"),
})
checkConversionErrorCode(t, err, CannotInterpolate)
a.EqString(string(reversed), "")
}
func Test_Registry_Error(t *testing.T) {
for _, suite := range []struct {
Name string
Function function.MetricFunction
}{
{"empty name", function.MetricFunction{Name: "", Compute: dummyCompute}},
{"duplicate name", function.MetricFunction{Name: "existing", Compute: dummyCompute}},
{"no compute", function.MetricFunction{Name: "notexisting", Compute: nil}},
} {
a := assert.New(t).Contextf("%s", suite.Name)
// set up the standard registry
sr := StandardRegistry{mapping: make(map[string]function.MetricFunction)}
if err := sr.Register(function.MetricFunction{Name: "existing", Compute: dummyCompute}); err != nil {
a.CheckError(err)
return
}
if err := sr.Register(suite.Function); err == nil {
a.Errorf("Expected error, but got none.")
}
}
}
func TestMatchRule_Simple(t *testing.T) {
a := assert.New(t)
rule, err := Compile(RawRule{
Pattern: "prefix.%foo%",
MetricKeyPattern: "test-metric",
})
a.CheckError(err)
_, matches := rule.MatchRule("")
if matches {
t.Errorf("Unexpected matching")
}
matcher, matches := rule.MatchRule("prefix.abc")
if !matches {
t.Errorf("Expected matching but didn't occur")
}
a.EqString(string(matcher.MetricKey), "test-metric")
a.EqString(matcher.TagSet["foo"], "abc")
_, matches = rule.MatchRule("prefix.abc.def")
if matches {
t.Errorf("Unexpected matching")
}
}
func TestMatchRule_CustomRegex(t *testing.T) {
a := assert.New(t)
regex := make(map[string]string)
regex["name"] = "[a-z]+"
regex["shard"] = "[0-9]+"
rule, err := Compile(RawRule{
Pattern: "feed.%name%-shard-%shard%",
MetricKeyPattern: "test-feed-metric",
Regex: regex,
})
a.CheckError(err)
_, matches := rule.MatchRule("")
if matches {
t.Errorf("Unexpected matching")
}
matcher, matches := rule.MatchRule("feed.feedname-shard-12")
if !matches {
t.Errorf("Expected matching but didn't occur")
}
a.EqString(string(matcher.MetricKey), "test-feed-metric")
a.EqString(matcher.TagSet["name"], "feedname")
a.EqString(matcher.TagSet["shard"], "12")
}
func Test_ParallelMultiBackend_Timeout(t *testing.T) {
a := assert.New(t)
suite := newSuite()
defer suite.cleanup()
go func() {
_, err := suite.multiBackend.FetchMultipleSeries(api.FetchMultipleRequest{
Metrics: []api.TaggedMetric{api.TaggedMetric{"a", api.NewTagSet()}},
Cancellable: suite.cancellable,
})
if err == nil {
t.Errorf("Error expected, but got nil")
} else {
casted, ok := err.(api.BackendError)
if !ok {
t.Errorf("Invalid error type")
} else {
a.Eq(casted.Code, api.FetchTimeoutError)
}
}
suite.waitGroup.Done()
}()
close(suite.cancellable.Done())
suite.waitGroup.Wait()
}
func Test_MetricName_GetTagSet(t *testing.T) {
a := assert.New(t)
db := newDatabase(t)
if db == nil {
return
}
defer cleanDatabase(t, db)
if db == nil {
return
}
if tags, err := db.GetTagSet("sample"); err != nil {
t.Errorf("Error fetching tags from Cassandra")
} else {
a.EqInt(len(tags), 0)
}
metricNamesTests := []struct {
addTest bool
metricName string
tagString string
expectedTags map[string][]string // { metricName: [ tags ] }
}{
{true, "sample", "foo=bar1", map[string][]string{
"sample": []string{"foo=bar1"},
}},
{true, "sample", "foo=bar2", map[string][]string{
"sample": []string{"foo=bar1", "foo=bar2"},
}},
{true, "sample2", "foo=bar2", map[string][]string{
"sample": []string{"foo=bar1", "foo=bar2"},
"sample2": []string{"foo=bar2"},
}},
{false, "sample2", "foo=bar2", map[string][]string{
"sample": []string{"foo=bar1", "foo=bar2"},
}},
{false, "sample", "foo=bar1", map[string][]string{
"sample": []string{"foo=bar2"},
}},
}
for _, c := range metricNamesTests {
if c.addTest {
a.CheckError(db.AddMetricName(api.MetricKey(c.metricName), api.ParseTagSet(c.tagString)))
} else {
a.CheckError(db.RemoveMetricName(api.MetricKey(c.metricName), api.ParseTagSet(c.tagString)))
}
for k, v := range c.expectedTags {
if tags, err := db.GetTagSet(api.MetricKey(k)); err != nil {
t.Errorf("Error fetching tags")
} else {
stringTags := make([]string, len(tags))
for i, tag := range tags {
stringTags[i] = tag.Serialize()
}
a.EqInt(len(stringTags), len(v))
sort.Sort(sort.StringSlice(stringTags))
sort.Sort(sort.StringSlice(v))
a.Eq(stringTags, v)
}
}
}
}
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 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())
}
}