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package gmeasure_test
import (
"math"
"strings"
"time"
. "github.com/onsi/ginkgo/v2"
. "github.com/onsi/gomega"
"github.com/onsi/gomega/gmeasure"
)
var _ = Describe("Measurement", func() {
var e *gmeasure.Experiment
var measurement gmeasure.Measurement
BeforeEach(func() {
e = gmeasure.NewExperiment("Test Experiment")
})
Describe("Note Measurement", func() {
BeforeEach(func() {
e.RecordNote("I'm a red note", gmeasure.Style("{{red}}"))
measurement = e.Measurements[0]
})
Describe("Generating Stats", func() {
It("returns an empty stats", func() {
Ω(measurement.Stats()).Should(BeZero())
})
})
Describe("Emitting an unstyled report", func() {
It("does not include styling", func() {
Ω(measurement.String()).Should(Equal("Test Experiment - Note\nI'm a red note\n"))
})
})
Describe("Emitting a styled report", func() {
It("does include styling", func() {
Ω(measurement.ColorableString()).Should(Equal("{{red}}Test Experiment - Note\nI'm a red note\n{{/}}"))
})
})
})
Describe("Value Measurement", func() {
var min, median, mean, stdDev, max float64
BeforeEach(func() {
e.RecordValue("flange widths", 7.128, gmeasure.Annotation("A"), gmeasure.Precision(2), gmeasure.Units("inches"), gmeasure.Style("{{blue}}"))
e.RecordValue("flange widths", 3.141, gmeasure.Annotation("B"))
e.RecordValue("flange widths", 9.28223, gmeasure.Annotation("C"))
e.RecordValue("flange widths", 14.249, gmeasure.Annotation("D"))
e.RecordValue("flange widths", 8.975, gmeasure.Annotation("E"))
measurement = e.Measurements[0]
min = 3.141
max = 14.249
median = 8.975
mean = (7.128 + 3.141 + 9.28223 + 14.249 + 8.975) / 5.0
stdDev = (7.128-mean)*(7.128-mean) + (3.141-mean)*(3.141-mean) + (9.28223-mean)*(9.28223-mean) + (14.249-mean)*(14.249-mean) + (8.975-mean)*(8.975-mean)
stdDev = math.Sqrt(stdDev / 5.0)
})
Describe("Generating Stats", func() {
It("generates a correctly configured Stats with correct values", func() {
stats := measurement.Stats()
Ω(stats.ExperimentName).Should(Equal("Test Experiment"))
Ω(stats.MeasurementName).Should(Equal("flange widths"))
Ω(stats.Style).Should(Equal("{{blue}}"))
Ω(stats.Units).Should(Equal("inches"))
Ω(stats.PrecisionBundle.ValueFormat).Should(Equal("%.2f"))
Ω(stats.ValueBundle[gmeasure.StatMin]).Should(Equal(min))
Ω(stats.AnnotationBundle[gmeasure.StatMin]).Should(Equal("B"))
Ω(stats.ValueBundle[gmeasure.StatMax]).Should(Equal(max))
Ω(stats.AnnotationBundle[gmeasure.StatMax]).Should(Equal("D"))
Ω(stats.ValueBundle[gmeasure.StatMedian]).Should(Equal(median))
Ω(stats.ValueBundle[gmeasure.StatMean]).Should(Equal(mean))
Ω(stats.ValueBundle[gmeasure.StatStdDev]).Should(BeNumerically("~", stdDev))
})
})
Describe("Emitting an unstyled report", func() {
It("does not include styling", func() {
expected := strings.Join([]string{
"Test Experiment - flange widths [inches]",
"3.14 < [8.97] | <8.56> ±3.59 < 14.25",
"Value | Annotation",
"==================",
" 7.13 | A ",
"------------------",
" 3.14 | B ",
"------------------",
" 9.28 | C ",
"------------------",
"14.25 | D ",
"------------------",
" 8.97 | E ",
"",
}, "\n")
Ω(measurement.String()).Should(Equal(expected))
})
})
Describe("Emitting a styled report", func() {
It("does include styling", func() {
expected := strings.Join([]string{
"{{blue}}Test Experiment - flange widths [inches]{{/}}",
"3.14 < [8.97] | <8.56> ±3.59 < 14.25",
"{{blue}}Value{{/}} | {{blue}}Annotation{{/}}",
"==================",
" 7.13 | {{gray}}A {{/}}",
"------------------",
" 3.14 | {{gray}}B {{/}}",
"------------------",
" 9.28 | {{gray}}C {{/}}",
"------------------",
"14.25 | {{gray}}D {{/}}",
"------------------",
" 8.97 | {{gray}}E {{/}}",
"",
}, "\n")
Ω(measurement.ColorableString()).Should(Equal(expected))
})
})
Describe("Computing medians", func() {
Context("with an odd number of values", func() {
It("returns the middle element", func() {
e.RecordValue("odd", 5)
e.RecordValue("odd", 1)
e.RecordValue("odd", 2)
e.RecordValue("odd", 4)
e.RecordValue("odd", 3)
Ω(e.GetStats("odd").ValueBundle[gmeasure.StatMedian]).Should(Equal(3.0))
})
})
Context("when an even number of values", func() {
It("returns the mean of the two middle elements", func() {
e.RecordValue("even", 1)
e.RecordValue("even", 2)
e.RecordValue("even", 4)
e.RecordValue("even", 3)
Ω(e.GetStats("even").ValueBundle[gmeasure.StatMedian]).Should(Equal(2.5))
})
})
})
})
Describe("Duration Measurement", func() {
var min, median, mean, stdDev, max time.Duration
BeforeEach(func() {
e.RecordDuration("runtime", 7128*time.Millisecond, gmeasure.Annotation("A"), gmeasure.Precision(time.Millisecond*100), gmeasure.Style("{{blue}}"))
e.RecordDuration("runtime", 3141*time.Millisecond, gmeasure.Annotation("B"))
e.RecordDuration("runtime", 9282*time.Millisecond, gmeasure.Annotation("C"))
e.RecordDuration("runtime", 14249*time.Millisecond, gmeasure.Annotation("D"))
e.RecordDuration("runtime", 8975*time.Millisecond, gmeasure.Annotation("E"))
measurement = e.Measurements[0]
min = 3141 * time.Millisecond
max = 14249 * time.Millisecond
median = 8975 * time.Millisecond
mean = ((7128 + 3141 + 9282 + 14249 + 8975) * time.Millisecond) / 5
stdDev = time.Duration(math.Sqrt((float64(7128*time.Millisecond-mean)*float64(7128*time.Millisecond-mean) + float64(3141*time.Millisecond-mean)*float64(3141*time.Millisecond-mean) + float64(9282*time.Millisecond-mean)*float64(9282*time.Millisecond-mean) + float64(14249*time.Millisecond-mean)*float64(14249*time.Millisecond-mean) + float64(8975*time.Millisecond-mean)*float64(8975*time.Millisecond-mean)) / 5.0))
})
Describe("Generating Stats", func() {
It("generates a correctly configured Stats with correct values", func() {
stats := measurement.Stats()
Ω(stats.ExperimentName).Should(Equal("Test Experiment"))
Ω(stats.MeasurementName).Should(Equal("runtime"))
Ω(stats.Style).Should(Equal("{{blue}}"))
Ω(stats.Units).Should(Equal("duration"))
Ω(stats.PrecisionBundle.Duration).Should(Equal(time.Millisecond * 100))
Ω(stats.DurationBundle[gmeasure.StatMin]).Should(Equal(min))
Ω(stats.AnnotationBundle[gmeasure.StatMin]).Should(Equal("B"))
Ω(stats.DurationBundle[gmeasure.StatMax]).Should(Equal(max))
Ω(stats.AnnotationBundle[gmeasure.StatMax]).Should(Equal("D"))
Ω(stats.DurationBundle[gmeasure.StatMedian]).Should(Equal(median))
Ω(stats.DurationBundle[gmeasure.StatMean]).Should(Equal(mean))
Ω(stats.DurationBundle[gmeasure.StatStdDev]).Should(Equal(stdDev))
})
})
Describe("Emitting an unstyled report", func() {
It("does not include styling", func() {
expected := strings.Join([]string{
"Test Experiment - runtime [duration]",
"3.1s < [9s] | <8.6s> ±3.6s < 14.2s",
"Duration | Annotation",
"=====================",
" 7.1s | A ",
"---------------------",
" 3.1s | B ",
"---------------------",
" 9.3s | C ",
"---------------------",
" 14.2s | D ",
"---------------------",
" 9s | E ",
"",
}, "\n")
Ω(measurement.String()).Should(Equal(expected))
})
})
Describe("Emitting a styled report", func() {
It("does include styling", func() {
expected := strings.Join([]string{
"{{blue}}Test Experiment - runtime [duration]{{/}}",
"3.1s < [9s] | <8.6s> ±3.6s < 14.2s",
"{{blue}}Duration{{/}} | {{blue}}Annotation{{/}}",
"=====================",
"{{blue}} 7.1s{{/}} | {{gray}}A {{/}}",
"---------------------",
"{{blue}} 3.1s{{/}} | {{gray}}B {{/}}",
"---------------------",
"{{blue}} 9.3s{{/}} | {{gray}}C {{/}}",
"---------------------",
"{{blue}} 14.2s{{/}} | {{gray}}D {{/}}",
"---------------------",
"{{blue}} 9s{{/}} | {{gray}}E {{/}}",
"",
}, "\n")
Ω(measurement.ColorableString()).Should(Equal(expected))
})
})
Describe("Computing medians", func() {
Context("with an odd number of values", func() {
It("returns the middle element", func() {
e.RecordDuration("odd", 5*time.Second)
e.RecordDuration("odd", 1*time.Second)
e.RecordDuration("odd", 2*time.Second)
e.RecordDuration("odd", 4*time.Second)
e.RecordDuration("odd", 3*time.Second)
Ω(e.GetStats("odd").DurationBundle[gmeasure.StatMedian]).Should(Equal(3 * time.Second))
})
})
Context("when an even number of values", func() {
It("returns the mean of the two middle elements", func() {
e.RecordDuration("even", 1*time.Second)
e.RecordDuration("even", 2*time.Second)
e.RecordDuration("even", 4*time.Second)
e.RecordDuration("even", 3*time.Second)
Ω(e.GetStats("even").DurationBundle[gmeasure.StatMedian]).Should(Equal(2500 * time.Millisecond))
})
})
})
})
})
|
