influxdb/influxql/functions_test.go

535 lines
11 KiB
Go

package influxql
import (
"reflect"
"testing"
"time"
"github.com/davecgh/go-spew/spew"
)
import "sort"
type point struct {
seriesKey string
time int64
value interface{}
}
type testIterator struct {
values []point
}
func (t *testIterator) Next() (timestamp int64, value interface{}) {
if len(t.values) > 0 {
v := t.values[0]
t.values = t.values[1:]
return v.time, v.value
}
return -1, nil
}
func TestMapMeanNoValues(t *testing.T) {
iter := &testIterator{}
if got := MapMean(iter); got != nil {
t.Errorf("output mismatch: exp nil got %v", got)
}
}
func TestMapMean(t *testing.T) {
tests := []struct {
input []point
output *meanMapOutput
}{
{ // Single point
input: []point{point{"0", 1, 1.0}},
output: &meanMapOutput{1, 1, Float64Type},
},
{ // Two points
input: []point{
point{"0", 1, 2.0},
point{"0", 2, 8.0},
},
output: &meanMapOutput{2, 5.0, Float64Type},
},
}
for _, test := range tests {
iter := &testIterator{
values: test.input,
}
got := MapMean(iter)
if got == nil {
t.Fatalf("MapMean(%v): output mismatch: exp %v got %v", test.input, test.output, got)
}
if got.(*meanMapOutput).Count != test.output.Count || got.(*meanMapOutput).Mean != test.output.Mean {
t.Errorf("output mismatch: exp %v got %v", test.output, got)
}
}
}
func TestInitializeMapFuncPercentile(t *testing.T) {
// No args
c := &Call{
Name: "percentile",
Args: []Expr{},
}
_, err := InitializeMapFunc(c)
if err == nil {
t.Errorf("InitializeMapFunc(%v) expected error. got nil", c)
}
if exp := "expected two arguments for percentile()"; err.Error() != exp {
t.Errorf("InitializeMapFunc(%v) mismatch. exp %v got %v", c, exp, err.Error())
}
// No percentile arg
c = &Call{
Name: "percentile",
Args: []Expr{
&VarRef{Val: "field1"},
},
}
_, err = InitializeMapFunc(c)
if err == nil {
t.Errorf("InitializeMapFunc(%v) expected error. got nil", c)
}
if exp := "expected two arguments for percentile()"; err.Error() != exp {
t.Errorf("InitializeMapFunc(%v) mismatch. exp %v got %v", c, exp, err.Error())
}
}
func TestInitializeMapFuncDerivative(t *testing.T) {
for _, fn := range []string{"derivative", "non_negative_derivative"} {
// No args should fail
c := &Call{
Name: fn,
Args: []Expr{},
}
_, err := InitializeMapFunc(c)
if err == nil {
t.Errorf("InitializeMapFunc(%v) expected error. got nil", c)
}
// Single field arg should return MapEcho
c = &Call{
Name: fn,
Args: []Expr{
&VarRef{Val: " field1"},
&DurationLiteral{Val: time.Hour},
},
}
_, err = InitializeMapFunc(c)
if err != nil {
t.Errorf("InitializeMapFunc(%v) unexpected error. got %v", c, err)
}
// Nested Aggregate func should return the map func for the nested aggregate
c = &Call{
Name: fn,
Args: []Expr{
&Call{Name: "mean", Args: []Expr{&VarRef{Val: "field1"}}},
&DurationLiteral{Val: time.Hour},
},
}
_, err = InitializeMapFunc(c)
if err != nil {
t.Errorf("InitializeMapFunc(%v) unexpected error. got %v", c, err)
}
}
}
func TestInitializeReduceFuncPercentile(t *testing.T) {
// No args
c := &Call{
Name: "percentile",
Args: []Expr{},
}
_, err := InitializeReduceFunc(c)
if err == nil {
t.Errorf("InitializedReduceFunc(%v) expected error. got nil", c)
}
if exp := "expected float argument in percentile()"; err.Error() != exp {
t.Errorf("InitializedReduceFunc(%v) mismatch. exp %v got %v", c, exp, err.Error())
}
// No percentile arg
c = &Call{
Name: "percentile",
Args: []Expr{
&VarRef{Val: "field1"},
},
}
_, err = InitializeReduceFunc(c)
if err == nil {
t.Errorf("InitializedReduceFunc(%v) expected error. got nil", c)
}
if exp := "expected float argument in percentile()"; err.Error() != exp {
t.Errorf("InitializedReduceFunc(%v) mismatch. exp %v got %v", c, exp, err.Error())
}
}
func TestReducePercentileNil(t *testing.T) {
// ReducePercentile should ignore nil values when calculating the percentile
fn := ReducePercentile(100)
input := []interface{}{
nil,
}
got := fn(input)
if got != nil {
t.Fatalf("ReducePercentile(100) returned wrong type. exp nil got %v", got)
}
}
func TestMapDistinct(t *testing.T) {
const ( // prove that we're ignoring seriesKey
seriesKey1 = "1"
seriesKey2 = "2"
)
const ( // prove that we're ignoring time
timeId1 = iota + 1
timeId2
timeId3
timeId4
timeId5
timeId6
)
iter := &testIterator{
values: []point{
{seriesKey1, timeId1, uint64(1)},
{seriesKey1, timeId2, uint64(1)},
{seriesKey1, timeId3, "1"},
{seriesKey2, timeId4, uint64(1)},
{seriesKey2, timeId5, float64(1.0)},
{seriesKey2, timeId6, "1"},
},
}
values := MapDistinct(iter).(distinctValues)
if exp, got := 3, len(values); exp != got {
t.Errorf("Wrong number of values. exp %v got %v", exp, got)
}
sort.Sort(values)
exp := distinctValues{
uint64(1),
float64(1),
"1",
}
if !reflect.DeepEqual(values, exp) {
t.Errorf("Wrong values. exp %v got %v", spew.Sdump(exp), spew.Sdump(values))
}
}
func TestMapDistinctNil(t *testing.T) {
iter := &testIterator{
values: []point{},
}
values := MapDistinct(iter)
if values != nil {
t.Errorf("Wrong values. exp nil got %v", spew.Sdump(values))
}
}
func TestReduceDistinct(t *testing.T) {
v1 := distinctValues{
"2",
"1",
float64(2.0),
float64(1),
uint64(2),
uint64(1),
true,
false,
}
expect := distinctValues{
uint64(1),
float64(1),
uint64(2),
float64(2),
false,
true,
"1",
"2",
}
got := ReduceDistinct([]interface{}{v1, v1, expect})
if !reflect.DeepEqual(got, expect) {
t.Errorf("Wrong values. exp %v got %v", spew.Sdump(expect), spew.Sdump(got))
}
}
func TestReduceDistinctNil(t *testing.T) {
tests := []struct {
name string
values []interface{}
}{
{
name: "nil values",
values: nil,
},
{
name: "nil mapper",
values: []interface{}{nil},
},
{
name: "no mappers",
values: []interface{}{},
},
{
name: "empty mappper (len 1)",
values: []interface{}{distinctValues{}},
},
{
name: "empty mappper (len 2)",
values: []interface{}{distinctValues{}, distinctValues{}},
},
}
for _, test := range tests {
t.Log(test.name)
got := ReduceDistinct(test.values)
if got != nil {
t.Errorf("Wrong values. exp nil got %v", spew.Sdump(got))
}
}
}
func Test_distinctValues_Sort(t *testing.T) {
values := distinctValues{
"2",
"1",
float64(2.0),
float64(1),
uint64(2),
uint64(1),
true,
false,
}
expect := distinctValues{
uint64(1),
float64(1),
uint64(2),
float64(2),
false,
true,
"1",
"2",
}
sort.Sort(values)
if !reflect.DeepEqual(values, expect) {
t.Errorf("Wrong values. exp %v got %v", spew.Sdump(expect), spew.Sdump(values))
}
}
func TestMapCountDistinct(t *testing.T) {
const ( // prove that we're ignoring seriesKey
seriesKey1 = "1"
seriesKey2 = "2"
)
const ( // prove that we're ignoring time
timeId1 = iota + 1
timeId2
timeId3
timeId4
timeId5
timeId6
timeId7
)
iter := &testIterator{
values: []point{
{seriesKey1, timeId1, uint64(1)},
{seriesKey1, timeId2, uint64(1)},
{seriesKey1, timeId3, "1"},
{seriesKey2, timeId4, uint64(1)},
{seriesKey2, timeId5, float64(1.0)},
{seriesKey2, timeId6, "1"},
{seriesKey2, timeId7, true},
},
}
values := MapCountDistinct(iter).(map[interface{}]struct{})
if exp, got := 4, len(values); exp != got {
t.Errorf("Wrong number of values. exp %v got %v", exp, got)
}
exp := map[interface{}]struct{}{
uint64(1): struct{}{},
float64(1): struct{}{},
"1": struct{}{},
true: struct{}{},
}
if !reflect.DeepEqual(values, exp) {
t.Errorf("Wrong values. exp %v got %v", spew.Sdump(exp), spew.Sdump(values))
}
}
func TestMapCountDistinctNil(t *testing.T) {
iter := &testIterator{
values: []point{},
}
values := MapCountDistinct(iter)
if values != nil {
t.Errorf("Wrong values. exp nil got %v", spew.Sdump(values))
}
}
func TestReduceCountDistinct(t *testing.T) {
v1 := map[interface{}]struct{}{
"2": struct{}{},
"1": struct{}{},
float64(2.0): struct{}{},
float64(1): struct{}{},
uint64(2): struct{}{},
uint64(1): struct{}{},
true: struct{}{},
false: struct{}{},
}
v2 := map[interface{}]struct{}{
uint64(1): struct{}{},
float64(1): struct{}{},
uint64(2): struct{}{},
float64(2): struct{}{},
false: struct{}{},
true: struct{}{},
"1": struct{}{},
"2": struct{}{},
}
exp := 8
got := ReduceCountDistinct([]interface{}{v1, v1, v2})
if !reflect.DeepEqual(got, exp) {
t.Errorf("Wrong values. exp %v got %v", spew.Sdump(exp), spew.Sdump(got))
}
}
func TestReduceCountDistinctNil(t *testing.T) {
emptyResults := make(map[interface{}]struct{})
tests := []struct {
name string
values []interface{}
}{
{
name: "nil values",
values: nil,
},
{
name: "nil mapper",
values: []interface{}{nil},
},
{
name: "no mappers",
values: []interface{}{},
},
{
name: "empty mappper (len 1)",
values: []interface{}{emptyResults},
},
{
name: "empty mappper (len 2)",
values: []interface{}{emptyResults, emptyResults},
},
}
for _, test := range tests {
t.Log(test.name)
got := ReduceCountDistinct(test.values)
if got != 0 {
t.Errorf("Wrong values. exp nil got %v", spew.Sdump(got))
}
}
}
var getSortedRangeData = []float64{
60, 61, 62, 63, 64, 65, 66, 67, 68, 69,
20, 21, 22, 23, 24, 25, 26, 27, 28, 29,
0, 1, 2, 3, 4, 5, 6, 7, 8, 9,
40, 41, 42, 43, 44, 45, 46, 47, 48, 49,
10, 11, 12, 13, 14, 15, 16, 17, 18, 19,
50, 51, 52, 53, 54, 55, 56, 57, 58, 59,
30, 31, 32, 33, 34, 35, 36, 37, 38, 39,
}
var getSortedRangeTests = []struct {
name string
data []float64
start int
count int
expected []float64
}{
{"first 5", getSortedRangeData, 0, 5, []float64{0, 1, 2, 3, 4}},
{"0 length", getSortedRangeData, 8, 0, []float64{}},
{"past end of data", getSortedRangeData, len(getSortedRangeData) - 3, 5, []float64{67, 68, 69}},
}
func TestGetSortedRange(t *testing.T) {
for _, tt := range getSortedRangeTests {
results := getSortedRange(tt.data, tt.start, tt.count)
if len(results) != len(tt.expected) {
t.Errorf("Test %s error. Expected getSortedRange to return %v but got %v", tt.name, tt.expected, results)
}
for i, point := range tt.expected {
if point != results[i] {
t.Errorf("Test %s error. getSortedRange returned wrong result for index %v. Expected %v but got %v", tt.name, i, point, results[i])
}
}
}
}
var benchGetSortedRangeResults []float64
func BenchmarkGetSortedRangeByPivot(b *testing.B) {
data := make([]float64, len(getSortedRangeData))
var results []float64
for i := 0; i < b.N; i++ {
copy(data, getSortedRangeData)
results = getSortedRange(data, 8, 15)
}
benchGetSortedRangeResults = results
}
func BenchmarkGetSortedRangeBySort(b *testing.B) {
data := make([]float64, len(getSortedRangeData))
var results []float64
for i := 0; i < b.N; i++ {
copy(data, getSortedRangeData)
sort.Float64s(data)
results = data[8:23]
}
benchGetSortedRangeResults = results
}