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package ms
import (
"reflect"
"testing"
"github.com/network-quality/goresponsiveness/utilities"
)
func Test_InfiniteValues(test *testing.T) {
series := NewInfiniteMathematicalSeries[float64]()
shouldMatch := make([]float64, 0)
previous := float64(1.0)
for _ = range utilities.Iota(1, 80) {
previous *= 1.059
series.AddElement(float64(previous))
shouldMatch = append(shouldMatch, previous)
}
if !reflect.DeepEqual(shouldMatch, series.Values()) {
test.Fatalf("Values() on infinite mathematical series does not work.")
}
}
func Test_InfiniteSequentialIncreasesAlwaysLessThan(test *testing.T) {
series := NewInfiniteMathematicalSeries[float64]()
previous := float64(1.0)
for _ = range utilities.Iota(1, 80) {
previous *= 1.059
series.AddElement(float64(previous))
}
if islt, maxSeqIncrease := series.AllSequentialIncreasesLessThan(6.0); !islt {
test.Fatalf("(infinite) Sequential increases are not always less than 6.0 (%f).", maxSeqIncrease)
}
}
func Test_CappedTooFewInstantsSequentialIncreasesLessThanAlwaysFalse(test *testing.T) {
series := NewCappedMathematicalSeries[float64](500)
series.AddElement(0.0)
if islt, _ := series.AllSequentialIncreasesLessThan(6.0); islt {
test.Fatalf("(infinite) 0 elements in a series should always yield false when asking if sequential increases are less than a value.")
}
}
func Test_Infinite_degenerate_percentile_too_high(test *testing.T) {
series := NewInfiniteMathematicalSeries[int]()
if series.Percentile(101) != 0 {
test.Fatalf("(infinite) Series percentile of 101 failed.")
}
}
func Test_Infinite_degenerate_percentile_too_low(test *testing.T) {
series := NewInfiniteMathematicalSeries[int]()
if series.Percentile(-1) != 0 {
test.Fatalf("(infinite) Series percentile of -1 failed.")
}
}
func Test_Infinite90_percentile(test *testing.T) {
series := NewInfiniteMathematicalSeries[int]()
series.AddElement(10)
series.AddElement(9)
series.AddElement(8)
series.AddElement(7)
series.AddElement(6)
series.AddElement(5)
series.AddElement(4)
series.AddElement(3)
series.AddElement(2)
series.AddElement(1)
if series.Percentile(90) != 10 {
test.Fatalf("(infinite) Series 90th percentile of 0 ... 10 failed: Expected 10 got %v.", series.Percentile(90))
}
}
func Test_Infinite90_percentile_reversed(test *testing.T) {
series := NewInfiniteMathematicalSeries[int64]()
series.AddElement(1)
series.AddElement(2)
series.AddElement(3)
series.AddElement(4)
series.AddElement(5)
series.AddElement(6)
series.AddElement(7)
series.AddElement(8)
series.AddElement(9)
series.AddElement(10)
if series.Percentile(90) != 10 {
test.Fatalf("(infinite) Series 90th percentile of 0 ... 10 failed: Expected 10 got %v.", series.Percentile(90))
}
}
func Test_Infinite50_percentile_jumbled(test *testing.T) {
series := NewInfiniteMathematicalSeries[int64]()
series.AddElement(7)
series.AddElement(2)
series.AddElement(15)
series.AddElement(27)
series.AddElement(5)
series.AddElement(52)
series.AddElement(18)
series.AddElement(23)
series.AddElement(11)
series.AddElement(12)
if series.Percentile(50) != 15 {
test.Fatalf("(infinite) Series 50 percentile of a jumble of numbers failed: Expected 15 got %v.", series.Percentile(50))
}
}
func Test_CappedSequentialIncreasesAlwaysLessThan(test *testing.T) {
series := NewCappedMathematicalSeries[float64](40)
previous := float64(1.0)
for _ = range utilities.Iota(1, 80) {
previous *= 1.059
series.AddElement(float64(previous))
}
if islt, maxSeqIncrease := series.AllSequentialIncreasesLessThan(6.0); !islt {
test.Fatalf("Sequential increases are not always less than 6.0 (%f).", maxSeqIncrease)
}
}
func Test_CappedSequentialIncreasesAlwaysLessThanWithWraparound(test *testing.T) {
series := NewCappedMathematicalSeries[float64](20)
previous := float64(1.0)
for range utilities.Iota(1, 20) {
previous *= 1.15
series.AddElement(float64(previous))
}
// All those measurements should be ejected by the following
// loop!
for range utilities.Iota(1, 20) {
previous *= 1.10
series.AddElement(float64(previous))
}
if islt, maxSeqIncrease := series.AllSequentialIncreasesLessThan(11.0); !islt {
test.Fatalf("Sequential increases are not always less than 11.0 in wraparound situation (%f v 11.0).", maxSeqIncrease)
}
}
func Test_CappedSequentialIncreasesAlwaysLessThanWithWraparoundInverse(test *testing.T) {
series := NewCappedMathematicalSeries[float64](20)
previous := float64(1.0)
for range utilities.Iota(1, 20) {
previous *= 1.15
series.AddElement(float64(previous))
}
// *Not* all those measurements should be ejected by the following
// loop!
for range utilities.Iota(1, 15) {
previous *= 1.10
series.AddElement(float64(previous))
}
if islt, maxSeqIncrease := series.AllSequentialIncreasesLessThan(11.0); islt {
test.Fatalf("Sequential increases are (unexpectedly) always less than 11.0 in wraparound situation: %f v 11.0.", maxSeqIncrease)
}
}
func Test_CappedStandardDeviationCalculation(test *testing.T) {
series := NewCappedMathematicalSeries[float64](5)
// 5.7, 1.0, 8.6, 7.4, 2.2
series.AddElement(5.7)
series.AddElement(1.0)
series.AddElement(8.6)
series.AddElement(7.4)
series.AddElement(2.2)
if _, sd := series.StandardDeviation(); !utilities.ApproximatelyEqual(2.93, sd, 0.01) {
test.Fatalf("Standard deviation max calculation failed: %v.", sd)
} else {
test.Logf("Standard deviation calculation result: %v", sd)
}
}
func Test_CappedRotatingValues(test *testing.T) {
series := NewCappedMathematicalSeries[int](5)
series.AddElement(1)
series.AddElement(2)
series.AddElement(3)
series.AddElement(4)
series.AddElement(5)
series.AddElement(6)
series.AddElement(7)
if !reflect.DeepEqual([]int{6, 7, 3, 4, 5}, series.Values()) {
test.Fatalf("Adding values does not properly erase earlier values.")
}
}
func Test_CappedSize(test *testing.T) {
series := NewCappedMathematicalSeries[int](5)
series.AddElement(1)
series.AddElement(2)
series.AddElement(3)
series.AddElement(4)
series.AddElement(5)
series.AddElement(6)
series.AddElement(7)
if series.Size() != 5 {
test.Fatalf("Series size calculations failed.")
}
}
func Test_Capped_degenerate_percentile_too_high(test *testing.T) {
series := NewCappedMathematicalSeries[int](21)
if series.Percentile(101) != 0 {
test.Fatalf("Series percentile of 101 failed.")
}
}
func Test_Capped_degenerate_percentile_too_low(test *testing.T) {
series := NewCappedMathematicalSeries[int](21)
if series.Percentile(-1) != 0 {
test.Fatalf("Series percentile of -1 failed.")
}
}
func Test_Capped90_percentile(test *testing.T) {
series := NewCappedMathematicalSeries[int](10)
series.AddElement(10)
series.AddElement(9)
series.AddElement(8)
series.AddElement(7)
series.AddElement(6)
series.AddElement(5)
series.AddElement(4)
series.AddElement(3)
series.AddElement(2)
series.AddElement(1)
if series.Percentile(90) != 10 {
test.Fatalf("Series 90th percentile of 0 ... 10 failed: Expected 10 got %v.", series.Percentile(90))
}
}
func Test_Capped90_percentile_reversed(test *testing.T) {
series := NewCappedMathematicalSeries[int64](10)
series.AddElement(1)
series.AddElement(2)
series.AddElement(3)
series.AddElement(4)
series.AddElement(5)
series.AddElement(6)
series.AddElement(7)
series.AddElement(8)
series.AddElement(9)
series.AddElement(10)
if series.Percentile(90) != 10 {
test.Fatalf("Series 90th percentile of 0 ... 10 failed: Expected 10 got %v.", series.Percentile(90))
}
}
func Test_Capped50_percentile_jumbled(test *testing.T) {
series := NewCappedMathematicalSeries[int64](10)
series.AddElement(7)
series.AddElement(2)
series.AddElement(15)
series.AddElement(27)
series.AddElement(5)
series.AddElement(52)
series.AddElement(18)
series.AddElement(23)
series.AddElement(11)
series.AddElement(12)
if series.Percentile(50) != 15 {
test.Fatalf("Series 50 percentile of a jumble of numbers failed: Expected 15 got %v.", series.Percentile(50))
}
}
|
