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test_util.go
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test_util.go
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// Copyright (c) 2019 Uber Technologies, Inc.
//
// Permission is hereby granted, free of charge, to any person obtaining a copy
// of this software and associated documentation files (the "Software"), to deal
// in the Software without restriction, including without limitation the rights
// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
// copies of the Software, and to permit persons to whom the Software is
// furnished to do so, subject to the following conditions:
//
// The above copyright notice and this permission notice shall be included in
// all copies or substantial portions of the Software.
//
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
// THE SOFTWARE.
package common
import (
"math"
"testing"
"time"
"github.com/m3db/m3/src/query/block"
"github.com/m3db/m3/src/query/graphite/context"
"github.com/m3db/m3/src/query/graphite/storage"
xtest "github.com/m3db/m3/src/query/graphite/testing"
"github.com/m3db/m3/src/query/graphite/ts"
"github.com/stretchr/testify/assert"
"github.com/stretchr/testify/require"
)
// TestSeries is used to create a tsdb.timeSeries
type TestSeries struct {
Name string
Data []float64
}
// NewTestContext creates a new test context.
func NewTestContext() *Context {
now := time.Now()
return NewContext(ContextOptions{Start: now.Add(-time.Hour), End: now})
}
// NewTestSeriesValues creates a new ts.Values with given step size and values.
func NewTestSeriesValues(ctx context.Context, millisPerStep int, values []float64) ts.Values {
tsv := ts.NewValues(ctx, millisPerStep, len(values))
for i, n := range values {
tsv.SetValueAt(i, n)
}
return tsv
}
// NewTestSeriesList creates a test series and values from a set of inputs
func NewTestSeriesList(ctx *Context, start time.Time, inputs []TestSeries, step int) []*ts.Series {
seriesList := make([]*ts.Series, 0, len(inputs))
for _, in := range inputs {
series := ts.NewSeries(ctx, in.Name, start, NewTestSeriesValues(ctx, step, in.Data))
seriesList = append(seriesList, series)
}
return seriesList
}
// NewConsolidationTestSeries returns multiple static series for consolidation
func NewConsolidationTestSeries(start, end time.Time, duration time.Duration) (*Context, []*ts.Series) {
ctx := NewContext(ContextOptions{Start: start, End: end})
testSeries := []*ts.Series{
ts.NewSeries(ctx, "a", start,
ts.NewConstantValues(ctx, 10, 6, 10000)),
ts.NewSeries(ctx, "b", start.Add(-duration),
ts.NewConstantValues(ctx, 15, 6, 10000)),
ts.NewSeries(ctx, "c", start.Add(duration),
ts.NewConstantValues(ctx, 17, 6, 10000)),
ts.NewSeries(ctx, "d", start,
ts.NewConstantValues(ctx, 3, 60, 1000)),
}
return ctx, testSeries
}
// CompareOutputsAndExpected compares the actual output with the expected output.
func CompareOutputsAndExpected(t *testing.T, step int, start time.Time, expected []TestSeries,
actual []*ts.Series) {
require.Equal(t, len(expected), len(actual))
for i := range expected {
a := actual[i]
require.Equal(t, expected[i].Name, a.Name())
assert.Equal(t, step, a.MillisPerStep(), a.Name()+": MillisPerStep in expected series do not match MillisPerStep in actual")
assert.Equal(t, start, a.StartTime(), a.Name()+": StartTime in expected series does not match StartTime in actual")
e := expected[i].Data
require.Equal(t, len(e), a.Len(), a.Name()+": length of expected series does not match length of actual")
for step := 0; step < a.Len(); step++ {
v := a.ValueAt(step)
if math.IsNaN(e[step]) {
assert.True(t, math.IsNaN(v), a.Name()+": invalid value for step %d/%d, should be NaN but is %v", step, a.Len(), v)
} else {
xtest.InDeltaWithNaNs(t, e[step], v, 0.0001, a.Name()+": invalid value for %d/%d", step, a.Len())
}
}
}
}
// MovingAverageStorage is a special test construct for the moving average function
type MovingAverageStorage struct {
StepMillis int
Bootstrap []float64
Values []float64
BootstrapStart time.Time
}
// FetchByPath builds a new series from the input path
func (s *MovingAverageStorage) FetchByPath(
ctx context.Context,
path string,
opts storage.FetchOptions,
) (*storage.FetchResult, error) {
return s.fetchByIDs(ctx, []string{path}, opts)
}
// FetchByQuery builds a new series from the input query
func (s *MovingAverageStorage) FetchByQuery(
ctx context.Context,
query string,
opts storage.FetchOptions,
) (*storage.FetchResult, error) {
return s.fetchByIDs(ctx, []string{query}, opts)
}
// FetchByIDs builds a new series from the input query
func (s *MovingAverageStorage) fetchByIDs(
ctx context.Context,
ids []string,
opts storage.FetchOptions,
) (*storage.FetchResult, error) {
var seriesList []*ts.Series
if s.Bootstrap != nil || s.Values != nil {
var values []float64
if opts.StartTime.Equal(s.BootstrapStart) {
values = s.Bootstrap
} else {
values = s.Values
}
series := ts.NewSeries(ctx, ids[0], opts.StartTime,
NewTestSeriesValues(ctx, s.StepMillis, values))
seriesList = append(seriesList, series)
}
return storage.NewFetchResult(ctx, seriesList, block.NewResultMetadata()), nil
}