forked from onsi/auction
/
auction_test.go
188 lines (152 loc) · 5.12 KB
/
auction_test.go
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package auction_test
import (
"github.com/onsi/auction/auctioneer"
"github.com/onsi/auction/instance"
"github.com/onsi/auction/util"
"github.com/onsi/auction/visualization"
. "github.com/onsi/ginkgo"
. "github.com/onsi/gomega"
)
var _ = Ω
var _ = Describe("Auction", func() {
var initialDistributions map[int][]instance.Instance
var numApps int
generateUniqueInstances := func(numInstances int) []instance.Instance {
instances := []instance.Instance{}
for i := 0; i < numInstances; i++ {
instances = append(instances, instance.New(util.NewGuid("APP"), 1))
}
return instances
}
randomColor := func() string {
return []string{"plurple", "red", "cyan", "yellow", "gray"}[util.R.Intn(5)]
}
generateInstancesWithRandomColors := func(numInstances int) []instance.Instance {
instances := []instance.Instance{}
for i := 0; i < numInstances; i++ {
instances = append(instances, instance.New(randomColor(), 1))
}
return instances
}
generateInstancesForAppGuid := func(numInstances int, appGuid string) []instance.Instance {
instances := []instance.Instance{}
for i := 0; i < numInstances; i++ {
instances = append(instances, instance.New(appGuid, 1))
}
return instances
}
generateNewColorInstances := func(newInstances map[string]int) []instance.Instance {
instances := []instance.Instance{}
for color, num := range newInstances {
instances = append(instances, generateInstancesForAppGuid(num, color)...)
}
return instances
}
BeforeEach(func() {
util.ResetGuids()
initialDistributions = map[int][]instance.Instance{}
})
JustBeforeEach(func() {
for index, instances := range initialDistributions {
client.SetInstances(guids[index], instances)
}
})
Context("with empty representatives and single-instance apps", func() {
BeforeEach(func() {
numApps = 800
})
It("should distribute evenly", func() {
instances := generateUniqueInstances(numApps)
results, duration := auctioneer.HoldAuctionsFor(client, instances, guids, rules, communicator)
visualization.PrintReport(client, results, guids, duration, rules)
})
})
Context("with non-empty representatives (and single-instance apps)", func() {
var numApps int
BeforeEach(func() {
numApps = 1000
for i := 0; i < numReps; i++ {
initialDistributions[i] = generateUniqueInstances(util.R.Intn(60))
}
})
It("should distribute evenly", func() {
instances := generateUniqueInstances(numApps)
results, duration := auctioneer.HoldAuctionsFor(client, instances, guids, rules, communicator)
visualization.PrintReport(client, results, guids, duration, rules)
})
})
Context("something that looks like prod", func() {
var numExistingApps int
var numReps int
var numDemoInstances int
BeforeEach(func() {
numExistingApps = 1337
numReps = 26
appsPerRep := numExistingApps / numReps
numDemoInstances = 100
for i := 0; i < numReps; i++ {
initialDistributions[i] = generateUniqueInstances(util.R.Intn(appsPerRep))
}
})
It("should distribute evenly when watters does a demo", func() {
instances := generateInstancesForAppGuid(numDemoInstances, "red")
results, duration := auctioneer.HoldAuctionsFor(client, instances, guids[:numReps], rules, communicator)
visualization.PrintReport(client, results, guids[:numReps], duration, rules)
})
})
Context("something very imbalanced", func() {
var numReps int
var numDemoInstances int
BeforeEach(func() {
numReps = 20
numDemoInstances = 200
for i := 0; i < numReps-1; i++ {
initialDistributions[i] = generateUniqueInstances(50)
}
})
It("should distribute evenly", func() {
instances := generateUniqueInstances(numDemoInstances)
results, duration := auctioneer.HoldAuctionsFor(client, instances, guids[:numReps], rules, communicator)
visualization.PrintReport(client, results, guids[:numReps], duration, rules)
})
})
Context("apps with multiple instances", func() {
var newInstances map[string]int
Context("when starting from a (terrible) initial distribution", func() {
BeforeEach(func() {
newInstances = map[string]int{
"red": 570,
"plurple": 420,
"cyan": 500,
"yellow": 720,
"gray": 129,
}
for i := 0; i < numReps; i++ {
initialDistributions[i] = generateInstancesWithRandomColors(util.R.Intn(60))
}
})
It("should distribute evenly", func() {
instances := generateNewColorInstances(newInstances)
results, duration := auctioneer.HoldAuctionsFor(client, instances, guids, rules, communicator)
visualization.PrintReport(client, results, guids, duration, rules)
})
})
Context("when starting from empty", func() {
BeforeEach(func() {
newInstances = map[string]int{
"red": 1000,
"plurple": 750,
"cyan": 500,
"yellow": 250,
"gray": 100,
}
})
It("should distribute evently", func() {
instances := generateNewColorInstances(newInstances)
instances = append(instances, generateUniqueInstances(2000)...)
results, duration := auctioneer.HoldAuctionsFor(client, instances, guids, rules, communicator)
visualization.PrintReport(client, results, guids, duration, rules)
})
})
})
})