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influxdb/influxql/select_test.go

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package influxql_test
import (
"math"
"reflect"
"testing"
"time"
"github.com/davecgh/go-spew/spew"
"github.com/influxdb/influxdb/influxql"
"github.com/influxdb/influxdb/pkg/deep"
)
// Second represents a helper for type converting durations.
const Second = int64(time.Second)
// Ensure a SELECT min() query can be executed.
func TestSelect_Min(t *testing.T) {
var ic IteratorCreator
ic.CreateIteratorFn = func(opt influxql.IteratorOptions) (influxql.Iterator, error) {
if !reflect.DeepEqual(opt.Expr, MustParseExpr(`min(value)`)) {
t.Fatalf("unexpected expr: %s", spew.Sdump(opt.Expr))
}
return influxql.NewCallIterator(&FloatIterator{Points: []influxql.FloatPoint{
{Name: "cpu", Tags: ParseTags("region=west,host=A"), Time: 0 * Second, Value: 20},
{Name: "cpu", Tags: ParseTags("region=west,host=B"), Time: 5 * Second, Value: 10},
{Name: "cpu", Tags: ParseTags("region=east,host=A"), Time: 9 * Second, Value: 19},
{Name: "cpu", Tags: ParseTags("region=east,host=A"), Time: 10 * Second, Value: 2},
{Name: "cpu", Tags: ParseTags("region=west,host=A"), Time: 11 * Second, Value: 3},
{Name: "cpu", Tags: ParseTags("region=west,host=A"), Time: 31 * Second, Value: 100},
}}, opt), nil
}
// Execute selection.
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itrs, err := influxql.Select(MustParseSelectStatement(`SELECT min(value) FROM cpu WHERE time >= '1970-01-01T00:00:00Z' AND time < '1970-01-02T00:00:00Z' GROUP BY time(10s), host fill(none)`), &ic)
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if err != nil {
t.Fatal(err)
} else if a := Iterators(itrs).ReadAll(); !deep.Equal(a, [][]influxql.Point{
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{&influxql.FloatPoint{Name: "cpu", Tags: ParseTags("host=A"), Time: 0 * Second, Value: 19}},
{&influxql.FloatPoint{Name: "cpu", Tags: ParseTags("host=B"), Time: 0 * Second, Value: 10}},
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{&influxql.FloatPoint{Name: "cpu", Tags: ParseTags("host=A"), Time: 10 * Second, Value: 2}},
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{&influxql.FloatPoint{Name: "cpu", Tags: ParseTags("host=A"), Time: 30 * Second, Value: 100}},
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}) {
t.Fatalf("unexpected points: %s", spew.Sdump(a))
}
}
// Ensure a SELECT distinct() query can be executed.
func TestSelect_Distinct(t *testing.T) {
var ic IteratorCreator
ic.CreateIteratorFn = func(opt influxql.IteratorOptions) (influxql.Iterator, error) {
return &FloatIterator{Points: []influxql.FloatPoint{
{Name: "cpu", Tags: ParseTags("region=west,host=A"), Time: 0 * Second, Value: 20},
{Name: "cpu", Tags: ParseTags("region=west,host=A"), Time: 1 * Second, Value: 19},
{Name: "cpu", Tags: ParseTags("region=west,host=B"), Time: 5 * Second, Value: 10},
{Name: "cpu", Tags: ParseTags("region=east,host=A"), Time: 9 * Second, Value: 19},
{Name: "cpu", Tags: ParseTags("region=east,host=A"), Time: 10 * Second, Value: 2},
{Name: "cpu", Tags: ParseTags("region=east,host=A"), Time: 11 * Second, Value: 2},
{Name: "cpu", Tags: ParseTags("region=east,host=A"), Time: 12 * Second, Value: 2},
}}, nil
}
// Execute selection.
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itrs, err := influxql.Select(MustParseSelectStatement(`SELECT distinct(value) FROM cpu WHERE time >= '1970-01-01T00:00:00Z' AND time < '1970-01-02T00:00:00Z' GROUP BY time(10s), host fill(none)`), &ic)
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if err != nil {
t.Fatal(err)
} else if a := Iterators(itrs).ReadAll(); !deep.Equal(a, [][]influxql.Point{
{&influxql.FloatPoint{Name: "cpu", Tags: ParseTags("host=A"), Time: 0 * Second, Value: 20}},
{&influxql.FloatPoint{Name: "cpu", Tags: ParseTags("host=A"), Time: 1 * Second, Value: 19}},
{&influxql.FloatPoint{Name: "cpu", Tags: ParseTags("host=B"), Time: 5 * Second, Value: 10}},
{&influxql.FloatPoint{Name: "cpu", Tags: ParseTags("host=A"), Time: 10 * Second, Value: 2}},
}) {
t.Fatalf("unexpected points: %s", spew.Sdump(a))
}
}
// Ensure a SELECT mean() query can be executed.
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func TestSelect_Mean_Float(t *testing.T) {
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var ic IteratorCreator
ic.CreateIteratorFn = func(opt influxql.IteratorOptions) (influxql.Iterator, error) {
return &FloatIterator{Points: []influxql.FloatPoint{
{Name: "cpu", Tags: ParseTags("region=west,host=A"), Time: 0 * Second, Value: 20},
{Name: "cpu", Tags: ParseTags("region=west,host=B"), Time: 5 * Second, Value: 10},
{Name: "cpu", Tags: ParseTags("region=east,host=A"), Time: 9 * Second, Value: 19},
{Name: "cpu", Tags: ParseTags("region=east,host=A"), Time: 10 * Second, Value: 2},
{Name: "cpu", Tags: ParseTags("region=west,host=A"), Time: 11 * Second, Value: 3},
{Name: "cpu", Tags: ParseTags("region=west,host=A"), Time: 31 * Second, Value: 100},
{Name: "cpu", Tags: ParseTags("region=west,host=B"), Time: 50 * Second, Value: 1},
{Name: "cpu", Tags: ParseTags("region=west,host=B"), Time: 51 * Second, Value: 2},
{Name: "cpu", Tags: ParseTags("region=west,host=B"), Time: 52 * Second, Value: 4},
{Name: "cpu", Tags: ParseTags("region=west,host=B"), Time: 53 * Second, Value: 4},
{Name: "cpu", Tags: ParseTags("region=west,host=B"), Time: 53 * Second, Value: 5},
}}, nil
}
// Execute selection.
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itrs, err := influxql.Select(MustParseSelectStatement(`SELECT mean(value) FROM cpu WHERE time >= '1970-01-01T00:00:00Z' AND time < '1970-01-02T00:00:00Z' GROUP BY time(10s), host fill(none)`), &ic)
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if err != nil {
t.Fatal(err)
Basic testing for binary expressions Use Iterators().ReadAll() in select unit tests.
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} else if a := Iterators(itrs).ReadAll(); !deep.Equal(a, [][]influxql.Point{
{&influxql.FloatPoint{Name: "cpu", Tags: ParseTags("host=A"), Time: 0 * Second, Value: 19.5}},
{&influxql.FloatPoint{Name: "cpu", Tags: ParseTags("host=B"), Time: 0 * Second, Value: 10}},
{&influxql.FloatPoint{Name: "cpu", Tags: ParseTags("host=A"), Time: 10 * Second, Value: 2.5}},
{&influxql.FloatPoint{Name: "cpu", Tags: ParseTags("host=A"), Time: 30 * Second, Value: 100}},
{&influxql.FloatPoint{Name: "cpu", Tags: ParseTags("host=B"), Time: 50 * Second, Value: 3.2}},
}) {
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t.Fatalf("unexpected points: %s", spew.Sdump(a))
}
}
// Ensure a SELECT mean() query can be executed.
func TestSelect_Mean_Integer(t *testing.T) {
var ic IteratorCreator
ic.CreateIteratorFn = func(opt influxql.IteratorOptions) (influxql.Iterator, error) {
return &IntegerIterator{Points: []influxql.IntegerPoint{
{Name: "cpu", Tags: ParseTags("region=west,host=A"), Time: 0 * Second, Value: 20},
{Name: "cpu", Tags: ParseTags("region=west,host=B"), Time: 5 * Second, Value: 10},
{Name: "cpu", Tags: ParseTags("region=east,host=A"), Time: 9 * Second, Value: 19},
{Name: "cpu", Tags: ParseTags("region=east,host=A"), Time: 10 * Second, Value: 2},
{Name: "cpu", Tags: ParseTags("region=west,host=A"), Time: 11 * Second, Value: 3},
{Name: "cpu", Tags: ParseTags("region=west,host=A"), Time: 31 * Second, Value: 100},
{Name: "cpu", Tags: ParseTags("region=west,host=B"), Time: 50 * Second, Value: 1},
{Name: "cpu", Tags: ParseTags("region=west,host=B"), Time: 51 * Second, Value: 2},
{Name: "cpu", Tags: ParseTags("region=west,host=B"), Time: 52 * Second, Value: 4},
{Name: "cpu", Tags: ParseTags("region=west,host=B"), Time: 53 * Second, Value: 4},
{Name: "cpu", Tags: ParseTags("region=west,host=B"), Time: 53 * Second, Value: 5},
}}, nil
}
// Execute selection.
itrs, err := influxql.Select(MustParseSelectStatement(`SELECT mean(value) FROM cpu WHERE time >= '1970-01-01T00:00:00Z' AND time < '1970-01-02T00:00:00Z' GROUP BY time(10s), host fill(none)`), &ic)
if err != nil {
t.Fatal(err)
Basic testing for binary expressions Use Iterators().ReadAll() in select unit tests.
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} else if a := Iterators(itrs).ReadAll(); !deep.Equal(a, [][]influxql.Point{
{&influxql.FloatPoint{Name: "cpu", Tags: ParseTags("host=A"), Time: 0 * Second, Value: 19.5}},
{&influxql.FloatPoint{Name: "cpu", Tags: ParseTags("host=B"), Time: 0 * Second, Value: 10}},
{&influxql.FloatPoint{Name: "cpu", Tags: ParseTags("host=A"), Time: 10 * Second, Value: 2.5}},
{&influxql.FloatPoint{Name: "cpu", Tags: ParseTags("host=A"), Time: 30 * Second, Value: 100}},
{&influxql.FloatPoint{Name: "cpu", Tags: ParseTags("host=B"), Time: 50 * Second, Value: 3.2}},
}) {
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t.Fatalf("unexpected points: %s", spew.Sdump(a))
}
}
// Ensure a SELECT median() query can be executed.
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func TestSelect_Median_Float(t *testing.T) {
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var ic IteratorCreator
ic.CreateIteratorFn = func(opt influxql.IteratorOptions) (influxql.Iterator, error) {
return &FloatIterator{Points: []influxql.FloatPoint{
{Name: "cpu", Tags: ParseTags("region=west,host=A"), Time: 0 * Second, Value: 20},
{Name: "cpu", Tags: ParseTags("region=west,host=B"), Time: 5 * Second, Value: 10},
{Name: "cpu", Tags: ParseTags("region=east,host=A"), Time: 9 * Second, Value: 19},
{Name: "cpu", Tags: ParseTags("region=east,host=A"), Time: 10 * Second, Value: 2},
{Name: "cpu", Tags: ParseTags("region=west,host=A"), Time: 11 * Second, Value: 3},
{Name: "cpu", Tags: ParseTags("region=west,host=A"), Time: 31 * Second, Value: 100},
{Name: "cpu", Tags: ParseTags("region=west,host=B"), Time: 50 * Second, Value: 1},
{Name: "cpu", Tags: ParseTags("region=west,host=B"), Time: 51 * Second, Value: 2},
{Name: "cpu", Tags: ParseTags("region=west,host=B"), Time: 52 * Second, Value: 3},
{Name: "cpu", Tags: ParseTags("region=west,host=B"), Time: 53 * Second, Value: 4},
{Name: "cpu", Tags: ParseTags("region=west,host=B"), Time: 53 * Second, Value: 5},
}}, nil
}
// Execute selection.
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itrs, err := influxql.Select(MustParseSelectStatement(`SELECT median(value) FROM cpu WHERE time >= '1970-01-01T00:00:00Z' AND time < '1970-01-02T00:00:00Z' GROUP BY time(10s), host fill(none)`), &ic)
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if err != nil {
t.Fatal(err)
Basic testing for binary expressions Use Iterators().ReadAll() in select unit tests.
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} else if a := Iterators(itrs).ReadAll(); !deep.Equal(a, [][]influxql.Point{
{&influxql.FloatPoint{Name: "cpu", Tags: ParseTags("host=A"), Time: 0 * Second, Value: 19.5}},
{&influxql.FloatPoint{Name: "cpu", Tags: ParseTags("host=B"), Time: 0 * Second, Value: 10}},
{&influxql.FloatPoint{Name: "cpu", Tags: ParseTags("host=A"), Time: 10 * Second, Value: 2.5}},
{&influxql.FloatPoint{Name: "cpu", Tags: ParseTags("host=A"), Time: 30 * Second, Value: 100}},
{&influxql.FloatPoint{Name: "cpu", Tags: ParseTags("host=B"), Time: 50 * Second, Value: 3}},
}) {
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t.Fatalf("unexpected points: %s", spew.Sdump(a))
}
}
// Ensure a SELECT median() query can be executed.
func TestSelect_Median_Integer(t *testing.T) {
var ic IteratorCreator
ic.CreateIteratorFn = func(opt influxql.IteratorOptions) (influxql.Iterator, error) {
return &IntegerIterator{Points: []influxql.IntegerPoint{
{Name: "cpu", Tags: ParseTags("region=west,host=A"), Time: 0 * Second, Value: 20},
{Name: "cpu", Tags: ParseTags("region=west,host=B"), Time: 5 * Second, Value: 10},
{Name: "cpu", Tags: ParseTags("region=east,host=A"), Time: 9 * Second, Value: 19},
{Name: "cpu", Tags: ParseTags("region=east,host=A"), Time: 10 * Second, Value: 2},
{Name: "cpu", Tags: ParseTags("region=west,host=A"), Time: 11 * Second, Value: 3},
{Name: "cpu", Tags: ParseTags("region=west,host=A"), Time: 31 * Second, Value: 100},
{Name: "cpu", Tags: ParseTags("region=west,host=B"), Time: 50 * Second, Value: 1},
{Name: "cpu", Tags: ParseTags("region=west,host=B"), Time: 51 * Second, Value: 2},
{Name: "cpu", Tags: ParseTags("region=west,host=B"), Time: 52 * Second, Value: 3},
{Name: "cpu", Tags: ParseTags("region=west,host=B"), Time: 53 * Second, Value: 4},
{Name: "cpu", Tags: ParseTags("region=west,host=B"), Time: 53 * Second, Value: 5},
}}, nil
}
// Execute selection.
itrs, err := influxql.Select(MustParseSelectStatement(`SELECT median(value) FROM cpu WHERE time >= '1970-01-01T00:00:00Z' AND time < '1970-01-02T00:00:00Z' GROUP BY time(10s), host fill(none)`), &ic)
if err != nil {
t.Fatal(err)
Basic testing for binary expressions Use Iterators().ReadAll() in select unit tests.
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} else if a := Iterators(itrs).ReadAll(); !deep.Equal(a, [][]influxql.Point{
{&influxql.FloatPoint{Name: "cpu", Tags: ParseTags("host=A"), Time: 0 * Second, Value: 19.5}},
{&influxql.FloatPoint{Name: "cpu", Tags: ParseTags("host=B"), Time: 0 * Second, Value: 10}},
{&influxql.FloatPoint{Name: "cpu", Tags: ParseTags("host=A"), Time: 10 * Second, Value: 2.5}},
{&influxql.FloatPoint{Name: "cpu", Tags: ParseTags("host=A"), Time: 30 * Second, Value: 100}},
{&influxql.FloatPoint{Name: "cpu", Tags: ParseTags("host=B"), Time: 50 * Second, Value: 3}},
}) {
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t.Fatalf("expected 1 iterator, got %d", len(itrs))
}
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}
// Ensure a SELECT stddev() query can be executed.
func TestSelect_Stddev(t *testing.T) {
var ic IteratorCreator
ic.CreateIteratorFn = func(opt influxql.IteratorOptions) (influxql.Iterator, error) {
return &FloatIterator{Points: []influxql.FloatPoint{
{Name: "cpu", Tags: ParseTags("region=west,host=A"), Time: 0 * Second, Value: 20},
{Name: "cpu", Tags: ParseTags("region=west,host=B"), Time: 5 * Second, Value: 10},
{Name: "cpu", Tags: ParseTags("region=east,host=A"), Time: 9 * Second, Value: 19},
{Name: "cpu", Tags: ParseTags("region=east,host=A"), Time: 10 * Second, Value: 2},
{Name: "cpu", Tags: ParseTags("region=west,host=A"), Time: 11 * Second, Value: 3},
{Name: "cpu", Tags: ParseTags("region=west,host=A"), Time: 31 * Second, Value: 100},
{Name: "cpu", Tags: ParseTags("region=west,host=B"), Time: 50 * Second, Value: 1},
{Name: "cpu", Tags: ParseTags("region=west,host=B"), Time: 51 * Second, Value: 2},
{Name: "cpu", Tags: ParseTags("region=west,host=B"), Time: 52 * Second, Value: 3},
{Name: "cpu", Tags: ParseTags("region=west,host=B"), Time: 53 * Second, Value: 4},
{Name: "cpu", Tags: ParseTags("region=west,host=B"), Time: 53 * Second, Value: 5},
}}, nil
}
// Execute selection.
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itrs, err := influxql.Select(MustParseSelectStatement(`SELECT stddev(value) FROM cpu WHERE time >= '1970-01-01T00:00:00Z' AND time < '1970-01-02T00:00:00Z' GROUP BY time(10s), host fill(none)`), &ic)
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if err != nil {
t.Fatal(err)
} else if a := Iterators(itrs).ReadAll(); !deep.Equal(a, [][]influxql.Point{
{&influxql.FloatPoint{Name: "cpu", Tags: ParseTags("host=A"), Time: 0 * Second, Value: 0.7071067811865476}},
{&influxql.FloatPoint{Name: "cpu", Tags: ParseTags("host=B"), Time: 0 * Second, Value: math.NaN()}},
{&influxql.FloatPoint{Name: "cpu", Tags: ParseTags("host=A"), Time: 10 * Second, Value: 0.7071067811865476}},
{&influxql.FloatPoint{Name: "cpu", Tags: ParseTags("host=A"), Time: 30 * Second, Value: math.NaN()}},
{&influxql.FloatPoint{Name: "cpu", Tags: ParseTags("host=B"), Time: 50 * Second, Value: 1.5811388300841898}},
}) {
t.Fatalf("unexpected points: %s", spew.Sdump(a))
}
}
// Ensure a SELECT spread() query can be executed.
func TestSelect_Spread(t *testing.T) {
var ic IteratorCreator
ic.CreateIteratorFn = func(opt influxql.IteratorOptions) (influxql.Iterator, error) {
return &FloatIterator{Points: []influxql.FloatPoint{
{Name: "cpu", Tags: ParseTags("region=west,host=A"), Time: 0 * Second, Value: 20},
{Name: "cpu", Tags: ParseTags("region=west,host=B"), Time: 5 * Second, Value: 10},
{Name: "cpu", Tags: ParseTags("region=east,host=A"), Time: 9 * Second, Value: 19},
{Name: "cpu", Tags: ParseTags("region=east,host=A"), Time: 10 * Second, Value: 2},
{Name: "cpu", Tags: ParseTags("region=west,host=A"), Time: 11 * Second, Value: 3},
{Name: "cpu", Tags: ParseTags("region=west,host=A"), Time: 31 * Second, Value: 100},
{Name: "cpu", Tags: ParseTags("region=west,host=B"), Time: 50 * Second, Value: 1},
{Name: "cpu", Tags: ParseTags("region=west,host=B"), Time: 51 * Second, Value: 2},
{Name: "cpu", Tags: ParseTags("region=west,host=B"), Time: 52 * Second, Value: 3},
{Name: "cpu", Tags: ParseTags("region=west,host=B"), Time: 53 * Second, Value: 4},
{Name: "cpu", Tags: ParseTags("region=west,host=B"), Time: 53 * Second, Value: 5},
}}, nil
}
// Execute selection.
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itrs, err := influxql.Select(MustParseSelectStatement(`SELECT spread(value) FROM cpu WHERE time >= '1970-01-01T00:00:00Z' AND time < '1970-01-02T00:00:00Z' GROUP BY time(10s), host fill(none)`), &ic)
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if err != nil {
t.Fatal(err)
} else if a := Iterators(itrs).ReadAll(); !deep.Equal(a, [][]influxql.Point{
{&influxql.FloatPoint{Name: "cpu", Tags: ParseTags("host=A"), Time: 0 * Second, Value: 1}},
{&influxql.FloatPoint{Name: "cpu", Tags: ParseTags("host=B"), Time: 0 * Second, Value: 0}},
{&influxql.FloatPoint{Name: "cpu", Tags: ParseTags("host=A"), Time: 10 * Second, Value: 1}},
{&influxql.FloatPoint{Name: "cpu", Tags: ParseTags("host=A"), Time: 30 * Second, Value: 0}},
{&influxql.FloatPoint{Name: "cpu", Tags: ParseTags("host=B"), Time: 50 * Second, Value: 4}},
}) {
t.Fatalf("unexpected points: %s", spew.Sdump(a))
}
}
// Ensure a SELECT percentile() query can be executed.
func TestSelect_Percentile(t *testing.T) {
var ic IteratorCreator
ic.CreateIteratorFn = func(opt influxql.IteratorOptions) (influxql.Iterator, error) {
return &FloatIterator{Points: []influxql.FloatPoint{
{Name: "cpu", Tags: ParseTags("region=west,host=A"), Time: 0 * Second, Value: 20},
{Name: "cpu", Tags: ParseTags("region=west,host=B"), Time: 5 * Second, Value: 10},
{Name: "cpu", Tags: ParseTags("region=east,host=A"), Time: 9 * Second, Value: 19},
{Name: "cpu", Tags: ParseTags("region=east,host=A"), Time: 10 * Second, Value: 2},
{Name: "cpu", Tags: ParseTags("region=west,host=A"), Time: 11 * Second, Value: 3},
{Name: "cpu", Tags: ParseTags("region=west,host=A"), Time: 31 * Second, Value: 100},
{Name: "cpu", Tags: ParseTags("region=west,host=B"), Time: 50 * Second, Value: 10},
{Name: "cpu", Tags: ParseTags("region=west,host=B"), Time: 51 * Second, Value: 9},
{Name: "cpu", Tags: ParseTags("region=west,host=B"), Time: 52 * Second, Value: 8},
{Name: "cpu", Tags: ParseTags("region=west,host=B"), Time: 53 * Second, Value: 7},
{Name: "cpu", Tags: ParseTags("region=west,host=B"), Time: 54 * Second, Value: 6},
{Name: "cpu", Tags: ParseTags("region=west,host=B"), Time: 55 * Second, Value: 5},
{Name: "cpu", Tags: ParseTags("region=west,host=B"), Time: 56 * Second, Value: 4},
{Name: "cpu", Tags: ParseTags("region=west,host=B"), Time: 57 * Second, Value: 3},
{Name: "cpu", Tags: ParseTags("region=west,host=B"), Time: 58 * Second, Value: 2},
{Name: "cpu", Tags: ParseTags("region=west,host=B"), Time: 59 * Second, Value: 1},
}}, nil
}
// Execute selection.
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itrs, err := influxql.Select(MustParseSelectStatement(`SELECT percentile(value, 90) FROM cpu WHERE time >= '1970-01-01T00:00:00Z' AND time < '1970-01-02T00:00:00Z' GROUP BY time(10s), host fill(none)`), &ic)
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if err != nil {
t.Fatal(err)
} else if a := Iterators(itrs).ReadAll(); !deep.Equal(a, [][]influxql.Point{
{&influxql.FloatPoint{Name: "cpu", Tags: ParseTags("host=A"), Time: 0 * Second, Value: 20}},
{&influxql.FloatPoint{Name: "cpu", Tags: ParseTags("host=B"), Time: 0 * Second, Value: 10}},
{&influxql.FloatPoint{Name: "cpu", Tags: ParseTags("host=A"), Time: 10 * Second, Value: 3}},
{&influxql.FloatPoint{Name: "cpu", Tags: ParseTags("host=A"), Time: 30 * Second, Value: 100}},
{&influxql.FloatPoint{Name: "cpu", Tags: ParseTags("host=B"), Time: 50 * Second, Value: 9}},
}) {
t.Fatalf("unexpected points: %s", spew.Sdump(a))
}
}
// Ensure a simple raw SELECT statement can be executed.
func TestSelect_Raw(t *testing.T) {
// Mock two iterators -- one for each value in the query.
var ic IteratorCreator
ic.CreateIteratorFn = func(opt influxql.IteratorOptions) (influxql.Iterator, error) {
if !reflect.DeepEqual(opt.Aux, []string{"v1", "v2"}) {
t.Fatalf("unexpected options: %s", spew.Sdump(opt.Expr))
}
return &FloatIterator{Points: []influxql.FloatPoint{
{Time: 0, Aux: []interface{}{float64(1), math.NaN()}},
{Time: 1, Aux: []interface{}{math.NaN(), float64(2)}},
{Time: 5, Aux: []interface{}{float64(3), float64(4)}},
}}, nil
}
// Execute selection.
itrs, err := influxql.Select(MustParseSelectStatement(`SELECT v1, v2 FROM cpu`), &ic)
if err != nil {
t.Fatal(err)
} else if a := Iterators(itrs).ReadAll(); !deep.Equal(a, [][]influxql.Point{
{
&influxql.FloatPoint{Time: 0, Value: 1},
&influxql.FloatPoint{Time: 0, Value: math.NaN()},
},
{
&influxql.FloatPoint{Time: 1, Value: math.NaN()},
&influxql.FloatPoint{Time: 1, Value: 2},
},
{
&influxql.FloatPoint{Time: 5, Value: 3},
&influxql.FloatPoint{Time: 5, Value: 4},
},
}) {
t.Fatalf("unexpected points: %s", spew.Sdump(a))
}
}
Basic testing for binary expressions Use Iterators().ReadAll() in select unit tests.
2016-02-01 16:03:35 +00:00
Add binary expr tests to influxql package No boolean operator tests because the parser doesn't currently allow it. I am currently keeping the code that performs this for now until we decide whether to allow boolean operators inside of a select clause. It would be easy to have the new query engine do something like this: SELECT mean(value) < 10 FROM cpu GROUP BY time(1m) And then you would have it return true or false for each interval, but the same can be done through a where clause too.
2016-02-01 22:08:37 +00:00
// Ensure a SELECT binary expr queries can be executed as floats.
func TestSelect_BinaryExpr_Float(t *testing.T) {
Basic testing for binary expressions Use Iterators().ReadAll() in select unit tests.
2016-02-01 16:03:35 +00:00
var ic IteratorCreator
ic.CreateIteratorFn = func(opt influxql.IteratorOptions) (influxql.Iterator, error) {
return &FloatIterator{Points: []influxql.FloatPoint{
{Name: "cpu", Time: 0 * Second, Value: 20, Aux: []interface{}{float64(20)}},
{Name: "cpu", Time: 5 * Second, Value: 10, Aux: []interface{}{float64(10)}},
{Name: "cpu", Time: 9 * Second, Value: 19, Aux: []interface{}{float64(19)}},
}}, nil
}
Add binary expr tests to influxql package No boolean operator tests because the parser doesn't currently allow it. I am currently keeping the code that performs this for now until we decide whether to allow boolean operators inside of a select clause. It would be easy to have the new query engine do something like this: SELECT mean(value) < 10 FROM cpu GROUP BY time(1m) And then you would have it return true or false for each interval, but the same can be done through a where clause too.
2016-02-01 22:08:37 +00:00
for _, test := range []struct {
Name string
Statement string
Points [][]influxql.Point
}{
{
Name: "rhs binary add",
Statement: `SELECT value + 2 FROM cpu`,
Points: [][]influxql.Point{
{&influxql.FloatPoint{Name: "cpu", Time: 0 * Second, Value: 22}},
{&influxql.FloatPoint{Name: "cpu", Time: 5 * Second, Value: 12}},
{&influxql.FloatPoint{Name: "cpu", Time: 9 * Second, Value: 21}},
},
},
{
Name: "lhs binary add",
Statement: `SELECT 2 + value FROM cpu`,
Points: [][]influxql.Point{
{&influxql.FloatPoint{Name: "cpu", Time: 0 * Second, Value: 22}},
{&influxql.FloatPoint{Name: "cpu", Time: 5 * Second, Value: 12}},
{&influxql.FloatPoint{Name: "cpu", Time: 9 * Second, Value: 21}},
},
},
{
Name: "rhs binary multiply",
Statement: `SELECT value * 2 FROM cpu`,
Points: [][]influxql.Point{
{&influxql.FloatPoint{Name: "cpu", Time: 0 * Second, Value: 40}},
{&influxql.FloatPoint{Name: "cpu", Time: 5 * Second, Value: 20}},
{&influxql.FloatPoint{Name: "cpu", Time: 9 * Second, Value: 38}},
},
},
{
Name: "lhs binary multiply",
Statement: `SELECT 2 * value FROM cpu`,
Points: [][]influxql.Point{
{&influxql.FloatPoint{Name: "cpu", Time: 0 * Second, Value: 40}},
{&influxql.FloatPoint{Name: "cpu", Time: 5 * Second, Value: 20}},
{&influxql.FloatPoint{Name: "cpu", Time: 9 * Second, Value: 38}},
},
},
{
Name: "rhs binary subtract",
Statement: `SELECT value - 2 FROM cpu`,
Points: [][]influxql.Point{
{&influxql.FloatPoint{Name: "cpu", Time: 0 * Second, Value: 18}},
{&influxql.FloatPoint{Name: "cpu", Time: 5 * Second, Value: 8}},
{&influxql.FloatPoint{Name: "cpu", Time: 9 * Second, Value: 17}},
},
},
{
Name: "lhs binary subtract",
Statement: `SELECT 2 - value FROM cpu`,
Points: [][]influxql.Point{
{&influxql.FloatPoint{Name: "cpu", Time: 0 * Second, Value: -18}},
{&influxql.FloatPoint{Name: "cpu", Time: 5 * Second, Value: -8}},
{&influxql.FloatPoint{Name: "cpu", Time: 9 * Second, Value: -17}},
},
},
{
Name: "rhs binary division",
Statement: `SELECT value / 2 FROM cpu`,
Points: [][]influxql.Point{
{&influxql.FloatPoint{Name: "cpu", Time: 0 * Second, Value: 10}},
{&influxql.FloatPoint{Name: "cpu", Time: 5 * Second, Value: 5}},
{&influxql.FloatPoint{Name: "cpu", Time: 9 * Second, Value: float64(19) / 2}},
},
},
{
Name: "lhs binary division",
Statement: `SELECT 38 / value FROM cpu`,
Points: [][]influxql.Point{
{&influxql.FloatPoint{Name: "cpu", Time: 0 * Second, Value: 1.9}},
{&influxql.FloatPoint{Name: "cpu", Time: 5 * Second, Value: 3.8}},
{&influxql.FloatPoint{Name: "cpu", Time: 9 * Second, Value: 2}},
},
},
} {
itrs, err := influxql.Select(MustParseSelectStatement(test.Statement), &ic)
if err != nil {
t.Errorf("%s: parse error: %s", test.Name, err)
} else if a := Iterators(itrs).ReadAll(); !deep.Equal(a, test.Points) {
t.Errorf("%s: unexpected points: %s", test.Name, spew.Sdump(a))
}
Basic testing for binary expressions Use Iterators().ReadAll() in select unit tests.
2016-02-01 16:03:35 +00:00
}
}
Add binary expr tests to influxql package No boolean operator tests because the parser doesn't currently allow it. I am currently keeping the code that performs this for now until we decide whether to allow boolean operators inside of a select clause. It would be easy to have the new query engine do something like this: SELECT mean(value) < 10 FROM cpu GROUP BY time(1m) And then you would have it return true or false for each interval, but the same can be done through a where clause too.
2016-02-01 22:08:37 +00:00
// Ensure a SELECT binary expr queries can be executed as integers.
func TestSelect_BinaryExpr_Integer(t *testing.T) {
Basic testing for binary expressions Use Iterators().ReadAll() in select unit tests.
2016-02-01 16:03:35 +00:00
var ic IteratorCreator
ic.CreateIteratorFn = func(opt influxql.IteratorOptions) (influxql.Iterator, error) {
Add binary expr tests to influxql package No boolean operator tests because the parser doesn't currently allow it. I am currently keeping the code that performs this for now until we decide whether to allow boolean operators inside of a select clause. It would be easy to have the new query engine do something like this: SELECT mean(value) < 10 FROM cpu GROUP BY time(1m) And then you would have it return true or false for each interval, but the same can be done through a where clause too.
2016-02-01 22:08:37 +00:00
return &IntegerIterator{Points: []influxql.IntegerPoint{
{Name: "cpu", Time: 0 * Second, Value: 20, Aux: []interface{}{int64(20)}},
{Name: "cpu", Time: 5 * Second, Value: 10, Aux: []interface{}{int64(10)}},
{Name: "cpu", Time: 9 * Second, Value: 19, Aux: []interface{}{int64(19)}},
Basic testing for binary expressions Use Iterators().ReadAll() in select unit tests.
2016-02-01 16:03:35 +00:00
}}, nil
}
Add binary expr tests to influxql package No boolean operator tests because the parser doesn't currently allow it. I am currently keeping the code that performs this for now until we decide whether to allow boolean operators inside of a select clause. It would be easy to have the new query engine do something like this: SELECT mean(value) < 10 FROM cpu GROUP BY time(1m) And then you would have it return true or false for each interval, but the same can be done through a where clause too.
2016-02-01 22:08:37 +00:00
for _, test := range []struct {
Name string
Statement string
Points [][]influxql.Point
}{
{
Name: "rhs binary add",
Statement: `SELECT value + 2 FROM cpu`,
Points: [][]influxql.Point{
{&influxql.IntegerPoint{Name: "cpu", Time: 0 * Second, Value: 22}},
{&influxql.IntegerPoint{Name: "cpu", Time: 5 * Second, Value: 12}},
{&influxql.IntegerPoint{Name: "cpu", Time: 9 * Second, Value: 21}},
},
},
{
Name: "lhs binary add",
Statement: `SELECT 2 + value FROM cpu`,
Points: [][]influxql.Point{
{&influxql.IntegerPoint{Name: "cpu", Time: 0 * Second, Value: 22}},
{&influxql.IntegerPoint{Name: "cpu", Time: 5 * Second, Value: 12}},
{&influxql.IntegerPoint{Name: "cpu", Time: 9 * Second, Value: 21}},
},
},
{
Name: "rhs binary multiply",
Statement: `SELECT value * 2 FROM cpu`,
Points: [][]influxql.Point{
{&influxql.IntegerPoint{Name: "cpu", Time: 0 * Second, Value: 40}},
{&influxql.IntegerPoint{Name: "cpu", Time: 5 * Second, Value: 20}},
{&influxql.IntegerPoint{Name: "cpu", Time: 9 * Second, Value: 38}},
},
},
{
Name: "lhs binary multiply",
Statement: `SELECT 2 * value FROM cpu`,
Points: [][]influxql.Point{
{&influxql.IntegerPoint{Name: "cpu", Time: 0 * Second, Value: 40}},
{&influxql.IntegerPoint{Name: "cpu", Time: 5 * Second, Value: 20}},
{&influxql.IntegerPoint{Name: "cpu", Time: 9 * Second, Value: 38}},
},
},
{
Name: "rhs binary subtract",
Statement: `SELECT value - 2 FROM cpu`,
Points: [][]influxql.Point{
{&influxql.IntegerPoint{Name: "cpu", Time: 0 * Second, Value: 18}},
{&influxql.IntegerPoint{Name: "cpu", Time: 5 * Second, Value: 8}},
{&influxql.IntegerPoint{Name: "cpu", Time: 9 * Second, Value: 17}},
},
},
{
Name: "lhs binary subtract",
Statement: `SELECT 2 - value FROM cpu`,
Points: [][]influxql.Point{
{&influxql.IntegerPoint{Name: "cpu", Time: 0 * Second, Value: -18}},
{&influxql.IntegerPoint{Name: "cpu", Time: 5 * Second, Value: -8}},
{&influxql.IntegerPoint{Name: "cpu", Time: 9 * Second, Value: -17}},
},
},
{
Name: "rhs binary division",
Statement: `SELECT value / 2 FROM cpu`,
Points: [][]influxql.Point{
{&influxql.IntegerPoint{Name: "cpu", Time: 0 * Second, Value: 10}},
{&influxql.IntegerPoint{Name: "cpu", Time: 5 * Second, Value: 5}},
{&influxql.IntegerPoint{Name: "cpu", Time: 9 * Second, Value: 9}},
},
},
{
Name: "lhs binary division",
Statement: `SELECT 38 / value FROM cpu`,
Points: [][]influxql.Point{
{&influxql.IntegerPoint{Name: "cpu", Time: 0 * Second, Value: 1}},
{&influxql.IntegerPoint{Name: "cpu", Time: 5 * Second, Value: 3}},
{&influxql.IntegerPoint{Name: "cpu", Time: 9 * Second, Value: 2}},
},
},
} {
itrs, err := influxql.Select(MustParseSelectStatement(test.Statement), &ic)
if err != nil {
t.Errorf("%s: parse error: %s", test.Name, err)
} else if a := Iterators(itrs).ReadAll(); !deep.Equal(a, test.Points) {
t.Errorf("%s: unexpected points: %s", test.Name, spew.Sdump(a))
}
Basic testing for binary expressions Use Iterators().ReadAll() in select unit tests.
2016-02-01 16:03:35 +00:00
}
}