mirror of
https://github.com/grafana/grafana.git
synced 2024-11-29 04:04:00 -06:00
560 lines
18 KiB
Go
560 lines
18 KiB
Go
package expr
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import (
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"context"
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"encoding/json"
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"math"
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"slices"
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"sort"
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"testing"
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"time"
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"github.com/grafana/grafana-plugin-sdk-go/data"
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"github.com/stretchr/testify/require"
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"golang.org/x/exp/maps"
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"github.com/grafana/grafana/pkg/expr/mathexp"
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"github.com/grafana/grafana/pkg/infra/tracing"
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"github.com/grafana/grafana/pkg/services/featuremgmt"
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"github.com/grafana/grafana/pkg/util"
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)
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func TestNewThresholdCommand(t *testing.T) {
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type testCase struct {
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fn ThresholdType
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args []float64
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shouldError bool
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expectedError string
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}
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cases := []testCase{
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{
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fn: "gt",
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args: []float64{0},
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shouldError: false,
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},
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{
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fn: "lt",
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args: []float64{0},
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shouldError: false,
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},
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{
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fn: "within_range",
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args: []float64{0, 1},
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shouldError: false,
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},
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{
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fn: "outside_range",
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args: []float64{0, 1},
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shouldError: false,
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},
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{
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fn: "gt",
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args: []float64{},
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shouldError: true,
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expectedError: "incorrect number of arguments",
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},
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{
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fn: "lt",
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args: []float64{},
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shouldError: true,
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expectedError: "incorrect number of arguments",
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},
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{
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fn: "within_range",
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args: []float64{0},
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shouldError: true,
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expectedError: "incorrect number of arguments",
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},
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{
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fn: "outside_range",
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args: []float64{0},
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shouldError: true,
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expectedError: "incorrect number of arguments",
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},
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}
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for _, tc := range cases {
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cmd, err := NewThresholdCommand("B", "A", tc.fn, tc.args)
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if tc.shouldError {
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require.Nil(t, cmd)
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require.NotNil(t, err)
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require.Contains(t, err.Error(), tc.expectedError)
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} else {
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require.Nil(t, err)
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require.NotNil(t, cmd)
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}
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}
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}
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func TestUnmarshalThresholdCommand(t *testing.T) {
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type testCase struct {
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description string
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query string
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shouldError bool
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expectedError string
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assert func(*testing.T, Command)
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}
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cases := []testCase{
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{
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description: "unmarshal proper object",
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query: `{
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"expression" : "A",
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"type": "threshold",
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"conditions": [{
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"evaluator": {
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"type": "gt",
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"params": [20, 80]
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}
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}]
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}`,
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assert: func(t *testing.T, command Command) {
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require.IsType(t, &ThresholdCommand{}, command)
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cmd := command.(*ThresholdCommand)
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require.Equal(t, []string{"A"}, cmd.NeedsVars())
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require.Equal(t, ThresholdIsAbove, cmd.ThresholdFunc)
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require.Equal(t, greaterThanPredicate{20.0}, cmd.predicate)
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},
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},
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{
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description: "unmarshal with missing conditions should error",
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query: `{
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"expression" : "A",
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"type": "threshold",
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"conditions": []
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}`,
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shouldError: true,
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expectedError: "threshold expression requires exactly one condition",
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},
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{
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description: "unmarshal with unsupported threshold function",
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query: `{
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"expression" : "A",
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"type": "threshold",
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"conditions": [{
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"evaluator": {
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"type": "foo",
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"params": [20, 80]
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}
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}]
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}`,
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shouldError: true,
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expectedError: "expected threshold function to be one of",
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},
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{
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description: "unmarshal with bad expression",
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query: `{
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"expression" : 0,
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"type": "threshold",
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"conditions": []
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}`,
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shouldError: true,
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},
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{
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description: "unmarshal as hysteresis command if two evaluators",
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query: `{
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"expression": "B",
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"conditions": [
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{
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"evaluator": {
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"params": [
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100
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],
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"type": "gt"
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},
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"unloadEvaluator": {
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"params": [
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31
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],
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"type": "lt"
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},
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"loadedDimensions": {"schema":{"name":"test","meta":{"type":"fingerprints","typeVersion":[1,0]},"fields":[{"name":"fingerprints","type":"number","typeInfo":{"frame":"uint64"}}]},"data":{"values":[[18446744073709551615,2,3,4,5]]}}
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}
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]
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}`,
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assert: func(t *testing.T, c Command) {
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require.IsType(t, &HysteresisCommand{}, c)
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cmd := c.(*HysteresisCommand)
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require.Equal(t, []string{"B"}, cmd.NeedsVars())
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require.Equal(t, []string{"B"}, cmd.LoadingThresholdFunc.NeedsVars())
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require.Equal(t, ThresholdIsAbove, cmd.LoadingThresholdFunc.ThresholdFunc)
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require.Equal(t, greaterThanPredicate{100.0}, cmd.LoadingThresholdFunc.predicate)
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require.Equal(t, []string{"B"}, cmd.UnloadingThresholdFunc.NeedsVars())
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require.Equal(t, ThresholdIsBelow, cmd.UnloadingThresholdFunc.ThresholdFunc)
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require.Equal(t, lessThanPredicate{31.0}, cmd.UnloadingThresholdFunc.predicate)
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require.True(t, cmd.UnloadingThresholdFunc.Invert)
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require.NotNil(t, cmd.LoadedDimensions)
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actual := make([]uint64, 0, len(cmd.LoadedDimensions))
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for fingerprint := range cmd.LoadedDimensions {
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actual = append(actual, uint64(fingerprint))
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}
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sort.Slice(actual, func(i, j int) bool {
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return actual[i] < actual[j]
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})
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require.EqualValues(t, []uint64{2, 3, 4, 5, 18446744073709551615}, actual)
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},
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},
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}
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for _, tc := range cases {
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t.Run(tc.description, func(t *testing.T) {
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q := []byte(tc.query)
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var qmap = make(map[string]any)
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require.NoError(t, json.Unmarshal(q, &qmap))
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cmd, err := UnmarshalThresholdCommand(&rawNode{
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RefID: "",
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Query: qmap,
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QueryRaw: []byte(tc.query),
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QueryType: "",
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DataSource: nil,
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}, featuremgmt.WithFeatures(featuremgmt.FlagRecoveryThreshold))
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if tc.shouldError {
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require.Nil(t, cmd)
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require.NotNil(t, err)
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require.Contains(t, err.Error(), tc.expectedError)
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} else {
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require.Nil(t, err)
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require.NotNil(t, cmd)
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if tc.assert != nil {
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tc.assert(t, cmd)
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}
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}
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})
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}
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}
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func TestThresholdCommandVars(t *testing.T) {
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cmd, err := NewThresholdCommand("B", "A", "lt", []float64{1.0})
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require.Nil(t, err)
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require.Equal(t, cmd.NeedsVars(), []string{"A"})
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}
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func TestIsSupportedThresholdFunc(t *testing.T) {
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type testCase struct {
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function ThresholdType
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supported bool
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}
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cases := []testCase{
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{
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function: ThresholdIsAbove,
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supported: true,
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},
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{
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function: ThresholdIsBelow,
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supported: true,
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},
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{
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function: ThresholdIsWithinRange,
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supported: true,
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},
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{
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function: ThresholdIsOutsideRange,
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supported: true,
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},
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{
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function: "foo",
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supported: false,
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},
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}
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for _, tc := range cases {
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t.Run(string(tc.function), func(t *testing.T) {
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supported := IsSupportedThresholdFunc(string(tc.function))
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require.Equal(t, supported, tc.supported)
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})
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}
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}
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func TestIsHysteresisExpression(t *testing.T) {
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cases := []struct {
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name string
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input json.RawMessage
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expected bool
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}{
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{
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name: "false if it's empty",
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input: json.RawMessage(`{}`),
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expected: false,
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},
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{
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name: "false if it is not threshold type",
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input: json.RawMessage(`{ "type": "reduce" }`),
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expected: false,
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},
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{
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name: "false if no conditions",
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input: json.RawMessage(`{ "type": "threshold" }`),
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expected: false,
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},
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{
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name: "false if many conditions",
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input: json.RawMessage(`{ "type": "threshold", "conditions": [{}, {}] }`),
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expected: false,
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},
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{
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name: "false if condition is not an object",
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input: json.RawMessage(`{ "type": "threshold", "conditions": ["test"] }`),
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expected: false,
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},
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{
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name: "false if condition is does not have unloadEvaluator",
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input: json.RawMessage(`{ "type": "threshold", "conditions": [{}] }`),
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expected: false,
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},
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{
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name: "true type is threshold and a single condition has unloadEvaluator field",
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input: json.RawMessage(`{ "type": "threshold", "conditions": [{ "unloadEvaluator" : {}}] }`),
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expected: true,
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},
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}
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for _, tc := range cases {
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t.Run(tc.name, func(t *testing.T) {
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query := map[string]any{}
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require.NoError(t, json.Unmarshal(tc.input, &query))
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require.Equal(t, tc.expected, IsHysteresisExpression(query))
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})
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}
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}
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func TestSetLoadedDimensionsToHysteresisCommand(t *testing.T) {
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cases := []struct {
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name string
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input json.RawMessage
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}{
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{
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name: "error if model is empty",
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input: json.RawMessage(`{}`),
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},
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{
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name: "error if is not a threshold type",
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input: json.RawMessage(`{ "type": "reduce" }`),
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},
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{
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name: "error if threshold but no conditions",
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input: json.RawMessage(`{ "type": "threshold" }`),
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},
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{
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name: "error if threshold and many conditions",
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input: json.RawMessage(`{ "type": "threshold", "conditions": [{}, {}] }`),
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},
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{
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name: "error if condition is not an object",
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input: json.RawMessage(`{ "type": "threshold", "conditions": ["test"] }`),
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},
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{
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name: "error if condition does not have unloadEvaluator",
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input: json.RawMessage(`{ "type": "threshold", "conditions": [{ "evaluator": { "params": [5], "type": "gt"}}], "expression": "A" }`),
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},
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}
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for _, tc := range cases {
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t.Run(tc.name, func(t *testing.T) {
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query := map[string]any{}
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require.NoError(t, json.Unmarshal(tc.input, &query))
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err := SetLoadedDimensionsToHysteresisCommand(query, Fingerprints{math.MaxUint64: {}, 2: {}, 3: {}})
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require.Error(t, err)
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})
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}
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t.Run("when unloadEvaluator is set, mutates query with loaded dimensions", func(t *testing.T) {
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fingerprints := Fingerprints{math.MaxUint64: {}, 2: {}, 3: {}}
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input := json.RawMessage(`{ "type": "threshold", "conditions": [{ "evaluator": { "params": [5], "type": "gt" }, "unloadEvaluator" : {"params": [2], "type": "lt"}}], "expression": "A" }`)
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query := map[string]any{}
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require.NoError(t, json.Unmarshal(input, &query))
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require.NoError(t, SetLoadedDimensionsToHysteresisCommand(query, fingerprints))
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raw, err := json.Marshal(query)
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require.NoError(t, err)
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// Assert the query is set by unmarshalling the query because it's the easiest way to assert Fingerprints
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cmd, err := UnmarshalThresholdCommand(&rawNode{
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RefID: "B",
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QueryRaw: raw,
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}, featuremgmt.WithFeatures(featuremgmt.FlagRecoveryThreshold))
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require.NoError(t, err)
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require.Equal(t, fingerprints, cmd.(*HysteresisCommand).LoadedDimensions)
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})
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}
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func TestThresholdExecute(t *testing.T) {
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input := map[string]mathexp.Value{
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//
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"no-data": mathexp.NewNoData(),
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//
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"series - numbers": newSeries(8, 9, 10, 11, 12),
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"series - empty": newSeriesPointer(),
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"series - all nils": newSeriesPointer(nil, nil, nil),
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"series - with labels": newSeriesWithLabels(data.Labels{"test": "test"}, nil, util.Pointer(float64(9)), nil, util.Pointer(float64(11)), nil),
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"series - with NaNs": newSeries(math.NaN(), math.NaN(), math.NaN()),
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//
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"scalar - nil": newScalar(nil),
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"scalar - NaN": newScalar(util.Pointer(math.NaN())),
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"scalar - 8": newScalar(util.Pointer(float64(8))),
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"scalar - 9": newScalar(util.Pointer(float64(9))),
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"scalar - 10": newScalar(util.Pointer(float64(10))),
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"scalar - 11": newScalar(util.Pointer(float64(11))),
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"scalar - 12": newScalar(util.Pointer(float64(12))),
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//
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"number - nil": newNumber(data.Labels{"number": "test"}, nil),
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"number - NaN": newNumber(data.Labels{"number": "test"}, util.Pointer(math.NaN())),
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"number - 8": newNumber(data.Labels{"number": "test"}, util.Pointer(float64(8))),
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"number - 9": newNumber(data.Labels{"number": "test"}, util.Pointer(float64(9))),
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"number - 10": newNumber(data.Labels{"number": "test"}, util.Pointer(float64(10))),
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"number - 11": newNumber(data.Labels{"number": "test"}, util.Pointer(float64(11))),
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"number - 12": newNumber(data.Labels{"number": "test"}, util.Pointer(float64(12))),
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}
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keys := maps.Keys(input)
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slices.Sort(keys)
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testCases := []struct {
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name string
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pred predicate
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expected map[string]mathexp.Value
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errorMsg string
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}{
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{
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name: "greater than 10",
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pred: greaterThanPredicate{10.0},
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expected: map[string]mathexp.Value{
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//
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"no-data": mathexp.NewNoData(),
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//
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"series - numbers": newSeries(0, 0, 0, 1, 1),
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"series - empty": newSeriesPointer(),
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"series - all nils": newSeriesPointer(nil, nil, nil),
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"series - with labels": newSeriesWithLabels(data.Labels{"test": "test"}, nil, util.Pointer(float64(0)), nil, util.Pointer(float64(1)), nil),
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"series - with NaNs": newSeries(0, 0, 0),
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//
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"scalar - nil": newScalar(nil),
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"scalar - NaN": newScalar(util.Pointer(float64(0))),
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"scalar - 8": newScalar(util.Pointer(float64(0))),
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"scalar - 9": newScalar(util.Pointer(float64(0))),
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"scalar - 10": newScalar(util.Pointer(float64(0))),
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"scalar - 11": newScalar(util.Pointer(float64(1))),
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"scalar - 12": newScalar(util.Pointer(float64(1))),
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//
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"number - nil": newNumber(data.Labels{"number": "test"}, nil),
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"number - NaN": newNumber(data.Labels{"number": "test"}, util.Pointer(float64(0))),
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"number - 8": newNumber(data.Labels{"number": "test"}, util.Pointer(float64(0))),
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"number - 9": newNumber(data.Labels{"number": "test"}, util.Pointer(float64(0))),
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"number - 10": newNumber(data.Labels{"number": "test"}, util.Pointer(float64(0))),
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"number - 11": newNumber(data.Labels{"number": "test"}, util.Pointer(float64(1))),
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"number - 12": newNumber(data.Labels{"number": "test"}, util.Pointer(float64(1))),
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},
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},
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{
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name: "less than 10",
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pred: lessThanPredicate{10.0},
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expected: map[string]mathexp.Value{
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//
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"no-data": mathexp.NewNoData(),
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//
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"series - numbers": newSeries(1, 1, 0, 0, 0),
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"series - empty": newSeriesPointer(),
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"series - all nils": newSeriesPointer(nil, nil, nil),
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"series - with labels": newSeriesWithLabels(data.Labels{"test": "test"}, nil, util.Pointer(float64(1)), nil, util.Pointer(float64(0)), nil),
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"series - with NaNs": newSeries(0, 0, 0),
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//
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"scalar - nil": newScalar(nil),
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"scalar - NaN": newScalar(util.Pointer(float64(0))),
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"scalar - 8": newScalar(util.Pointer(float64(1))),
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"scalar - 9": newScalar(util.Pointer(float64(1))),
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"scalar - 10": newScalar(util.Pointer(float64(0))),
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"scalar - 11": newScalar(util.Pointer(float64(0))),
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"scalar - 12": newScalar(util.Pointer(float64(0))),
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//
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"number - nil": newNumber(data.Labels{"number": "test"}, nil),
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"number - NaN": newNumber(data.Labels{"number": "test"}, util.Pointer(float64(0))),
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"number - 8": newNumber(data.Labels{"number": "test"}, util.Pointer(float64(1))),
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"number - 9": newNumber(data.Labels{"number": "test"}, util.Pointer(float64(1))),
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"number - 10": newNumber(data.Labels{"number": "test"}, util.Pointer(float64(0))),
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"number - 11": newNumber(data.Labels{"number": "test"}, util.Pointer(float64(0))),
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"number - 12": newNumber(data.Labels{"number": "test"}, util.Pointer(float64(0))),
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},
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},
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{
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name: "within range (8,11)",
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pred: withinRangePredicate{8, 11},
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expected: map[string]mathexp.Value{
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//
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"no-data": mathexp.NewNoData(),
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//
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"series - numbers": newSeries(0, 1, 1, 0, 0),
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"series - empty": newSeriesPointer(),
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"series - all nils": newSeriesPointer(nil, nil, nil),
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"series - with labels": newSeriesWithLabels(data.Labels{"test": "test"}, nil, util.Pointer(float64(1)), nil, util.Pointer(float64(0)), nil),
|
|
"series - with NaNs": newSeries(0, 0, 0),
|
|
//
|
|
"scalar - nil": newScalar(nil),
|
|
"scalar - NaN": newScalar(util.Pointer(float64(0))),
|
|
"scalar - 8": newScalar(util.Pointer(float64(0))),
|
|
"scalar - 9": newScalar(util.Pointer(float64(1))),
|
|
"scalar - 10": newScalar(util.Pointer(float64(1))),
|
|
"scalar - 11": newScalar(util.Pointer(float64(0))),
|
|
"scalar - 12": newScalar(util.Pointer(float64(0))),
|
|
//
|
|
"number - nil": newNumber(data.Labels{"number": "test"}, nil),
|
|
"number - NaN": newNumber(data.Labels{"number": "test"}, util.Pointer(float64(0))),
|
|
"number - 8": newNumber(data.Labels{"number": "test"}, util.Pointer(float64(0))),
|
|
"number - 9": newNumber(data.Labels{"number": "test"}, util.Pointer(float64(1))),
|
|
"number - 10": newNumber(data.Labels{"number": "test"}, util.Pointer(float64(1))),
|
|
"number - 11": newNumber(data.Labels{"number": "test"}, util.Pointer(float64(0))),
|
|
"number - 12": newNumber(data.Labels{"number": "test"}, util.Pointer(float64(0))),
|
|
},
|
|
},
|
|
{
|
|
name: "outside range (8, 11)",
|
|
pred: outsideRangePredicate{8, 11},
|
|
expected: map[string]mathexp.Value{
|
|
//
|
|
"no-data": mathexp.NewNoData(),
|
|
//
|
|
"series - numbers": newSeries(0, 0, 0, 0, 1),
|
|
"series - empty": newSeriesPointer(),
|
|
"series - all nils": newSeriesPointer(nil, nil, nil),
|
|
"series - with labels": newSeriesWithLabels(data.Labels{"test": "test"}, nil, util.Pointer(float64(0)), nil, util.Pointer(float64(0)), nil),
|
|
"series - with NaNs": newSeries(0, 0, 0),
|
|
//
|
|
"scalar - nil": newScalar(nil),
|
|
"scalar - NaN": newScalar(util.Pointer(float64(0))),
|
|
"scalar - 8": newScalar(util.Pointer(float64(0))),
|
|
"scalar - 9": newScalar(util.Pointer(float64(0))),
|
|
"scalar - 10": newScalar(util.Pointer(float64(0))),
|
|
"scalar - 11": newScalar(util.Pointer(float64(0))),
|
|
"scalar - 12": newScalar(util.Pointer(float64(1))),
|
|
//
|
|
"number - nil": newNumber(data.Labels{"number": "test"}, nil),
|
|
"number - NaN": newNumber(data.Labels{"number": "test"}, util.Pointer(float64(0))),
|
|
"number - 8": newNumber(data.Labels{"number": "test"}, util.Pointer(float64(0))),
|
|
"number - 9": newNumber(data.Labels{"number": "test"}, util.Pointer(float64(0))),
|
|
"number - 10": newNumber(data.Labels{"number": "test"}, util.Pointer(float64(0))),
|
|
"number - 11": newNumber(data.Labels{"number": "test"}, util.Pointer(float64(0))),
|
|
"number - 12": newNumber(data.Labels{"number": "test"}, util.Pointer(float64(1))),
|
|
},
|
|
},
|
|
}
|
|
for _, tc := range testCases {
|
|
t.Run(tc.name, func(t *testing.T) {
|
|
cmd := ThresholdCommand{
|
|
predicate: tc.pred,
|
|
ReferenceVar: "A",
|
|
}
|
|
for _, name := range keys {
|
|
t.Run(name, func(t *testing.T) {
|
|
result, err := cmd.Execute(context.Background(), time.Now(), mathexp.Vars{
|
|
"A": newResults(input[name]),
|
|
}, tracing.InitializeTracerForTest())
|
|
require.NoError(t, err)
|
|
require.Equal(t, newResults(tc.expected[name]), result)
|
|
})
|
|
}
|
|
})
|
|
}
|
|
}
|