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feat(inputs.mock): Add baseline option to sine (#15270)

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Lars Stegman 2024-04-30 16:41:27 +02:00 committed by GitHub
parent ae50801866
commit ee9df0a2a6
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4 changed files with 7 additions and 3 deletions
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3
plugins/inputs/mock/README.md
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@ -40,6 +40,7 @@ See the [CONFIGURATION.md][CONFIGURATION.md] for more details.
# name = "wave" # name = "wave"
# amplitude = 1.0 # amplitude = 1.0
# period = 0.5 # period = 0.5
# base_line = 0.0
# [[inputs.mock.step]] # [[inputs.mock.step]]
# name = "plus_one" # name = "plus_one"
# start = 0.0 # start = 0.0
@ -62,7 +63,7 @@ The available algorithms for generating mock data include:
* Constant - generate a field with the given value of type string, float, int * Constant - generate a field with the given value of type string, float, int
or bool or bool
* Random Float - generate a random float, inclusive of min and max * Random Float - generate a random float, inclusive of min and max
* Sine Wave - produce a sine wave with a certain amplitude and period * Sine Wave - produce a sine wave with a certain amplitude, period and baseline
* Step - always add the step value, negative values accepted * Step - always add the step value, negative values accepted
* Stock - generate fake, stock-like price values based on a volatility variable * Stock - generate fake, stock-like price values based on a volatility variable

3
plugins/inputs/mock/mock.go
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@ -43,6 +43,7 @@ type sineWave struct {
Name string `toml:"name"` Name string `toml:"name"`
Amplitude float64 `toml:"amplitude"` Amplitude float64 `toml:"amplitude"`
Period float64 `toml:"period"` Period float64 `toml:"period"`
BaseLine float64 `toml:"base_line"`
} }
type step struct { type step struct {
@ -117,7 +118,7 @@ func (m *Mock) generateRandomFloat64(fields map[string]interface{}) {
// Create sine waves // Create sine waves
func (m *Mock) generateSineWave(fields map[string]interface{}) { func (m *Mock) generateSineWave(fields map[string]interface{}) {
for _, field := range m.SineWave { for _, field := range m.SineWave {
fields[field.Name] = math.Sin(float64(m.counter)*field.Period*math.Pi) * field.Amplitude fields[field.Name] = math.Sin(float64(m.counter)*field.Period*math.Pi)*field.Amplitude + field.BaseLine
} }
} }

3
plugins/inputs/mock/mock_test.go
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@ -34,6 +34,7 @@ func TestGather(t *testing.T) {
Name: "sine", Name: "sine",
Amplitude: 1.0, Amplitude: 1.0,
Period: 0.5, Period: 0.5,
BaseLine: 2.0,
} }
testStep := &step{ testStep := &step{
Name: "step", Name: "step",
@ -87,7 +88,7 @@ func TestGather(t *testing.T) {
require.GreaterOrEqual(t, 6.0, v) require.GreaterOrEqual(t, 6.0, v)
require.LessOrEqual(t, 1.0, v) require.LessOrEqual(t, 1.0, v)
case "sine": case "sine":
require.Equal(t, 0.0, v) require.Equal(t, 2.0, v)
case "step": case "step":
require.Equal(t, 0.0, v) require.Equal(t, 0.0, v)
default: default:

1
plugins/inputs/mock/sample.conf
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@ -19,6 +19,7 @@
# name = "wave" # name = "wave"
# amplitude = 1.0 # amplitude = 1.0
# period = 0.5 # period = 0.5
# base_line = 0.0
# [[inputs.mock.step]] # [[inputs.mock.step]]
# name = "plus_one" # name = "plus_one"
# start = 0.0 # start = 0.0