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package leafnodes
import (
"bytes"
"encoding/json"
"github.com/onsi/ginkgo/internal/failer"
"github.com/onsi/ginkgo/types"
"io/ioutil"
"net/http"
"reflect"
"time"
)
type synchronizedBeforeSuiteNode struct {
runnerA *runner
runnerB *runner
data []byte
outcome types.SpecState
failure types.SpecFailure
runTime time.Duration
}
func NewSynchronizedBeforeSuiteNode(bodyA interface{}, bodyB interface{}, codeLocation types.CodeLocation, timeout time.Duration, failer *failer.Failer) SuiteNode {
node := &synchronizedBeforeSuiteNode{}
node.runnerA = newRunner(node.wrapA(bodyA), codeLocation, timeout, failer, types.SpecComponentTypeBeforeSuite, 0)
node.runnerB = newRunner(node.wrapB(bodyB), codeLocation, timeout, failer, types.SpecComponentTypeBeforeSuite, 0)
return node
}
func (node *synchronizedBeforeSuiteNode) Run(parallelNode int, parallelTotal int, syncHost string) bool {
t := time.Now()
defer func() {
node.runTime = time.Since(t)
}()
if parallelNode == 1 {
node.outcome, node.failure = node.runA(parallelTotal, syncHost)
} else {
node.outcome, node.failure = node.waitForA(syncHost)
}
if node.outcome != types.SpecStatePassed {
return false
}
node.outcome, node.failure = node.runnerB.run()
return node.outcome == types.SpecStatePassed
}
func (node *synchronizedBeforeSuiteNode) runA(parallelTotal int, syncHost string) (types.SpecState, types.SpecFailure) {
outcome, failure := node.runnerA.run()
if parallelTotal > 1 {
state := types.RemoteBeforeSuiteStatePassed
if outcome != types.SpecStatePassed {
state = types.RemoteBeforeSuiteStateFailed
}
json := (types.RemoteBeforeSuiteData{
Data: node.data,
State: state,
}).ToJSON()
http.Post(syncHost+"/BeforeSuiteState", "application/json", bytes.NewBuffer(json))
}
return outcome, failure
}
func (node *synchronizedBeforeSuiteNode) waitForA(syncHost string) (types.SpecState, types.SpecFailure) {
failure := func(message string) types.SpecFailure {
return types.SpecFailure{
Message: message,
Location: node.runnerA.codeLocation,
ComponentType: node.runnerA.nodeType,
ComponentIndex: node.runnerA.componentIndex,
ComponentCodeLocation: node.runnerA.codeLocation,
}
}
for {
resp, err := http.Get(syncHost + "/BeforeSuiteState")
if err != nil || resp.StatusCode != http.StatusOK {
return types.SpecStateFailed, failure("Failed to fetch BeforeSuite state")
}
body, err := ioutil.ReadAll(resp.Body)
if err != nil {
return types.SpecStateFailed, failure("Failed to read BeforeSuite state")
}
resp.Body.Close()
beforeSuiteData := types.RemoteBeforeSuiteData{}
err = json.Unmarshal(body, &beforeSuiteData)
if err != nil {
return types.SpecStateFailed, failure("Failed to decode BeforeSuite state")
}
switch beforeSuiteData.State {
case types.RemoteBeforeSuiteStatePassed:
node.data = beforeSuiteData.Data
return types.SpecStatePassed, types.SpecFailure{}
case types.RemoteBeforeSuiteStateFailed:
return types.SpecStateFailed, failure("BeforeSuite on Node 1 failed")
case types.RemoteBeforeSuiteStateDisappeared:
return types.SpecStateFailed, failure("Node 1 disappeared before completing BeforeSuite")
}
time.Sleep(50 * time.Millisecond)
}
return types.SpecStateFailed, failure("Shouldn't get here!")
}
func (node *synchronizedBeforeSuiteNode) Passed() bool {
return node.outcome == types.SpecStatePassed
}
func (node *synchronizedBeforeSuiteNode) Summary() *types.SetupSummary {
return &types.SetupSummary{
ComponentType: node.runnerA.nodeType,
CodeLocation: node.runnerA.codeLocation,
State: node.outcome,
RunTime: node.runTime,
Failure: node.failure,
}
}
func (node *synchronizedBeforeSuiteNode) wrapA(bodyA interface{}) interface{} {
typeA := reflect.TypeOf(bodyA)
if typeA.Kind() != reflect.Func {
panic("SynchronizedBeforeSuite expects a function as its first argument")
}
takesNothing := typeA.NumIn() == 0
takesADoneChannel := typeA.NumIn() == 1 && typeA.In(0).Kind() == reflect.Chan && typeA.In(0).Elem().Kind() == reflect.Interface
returnsBytes := typeA.NumOut() == 1 && typeA.Out(0).Kind() == reflect.Slice && typeA.Out(0).Elem().Kind() == reflect.Uint8
if !((takesNothing || takesADoneChannel) && returnsBytes) {
panic("SynchronizedBeforeSuite's first argument should be a function that returns []byte and either takes no arguments or takes a Done channel.")
}
if takesADoneChannel {
return func(done chan<- interface{}) {
out := reflect.ValueOf(bodyA).Call([]reflect.Value{reflect.ValueOf(done)})
node.data = out[0].Interface().([]byte)
}
}
return func() {
out := reflect.ValueOf(bodyA).Call([]reflect.Value{})
node.data = out[0].Interface().([]byte)
}
}
func (node *synchronizedBeforeSuiteNode) wrapB(bodyB interface{}) interface{} {
typeB := reflect.TypeOf(bodyB)
if typeB.Kind() != reflect.Func {
panic("SynchronizedBeforeSuite expects a function as its second argument")
}
returnsNothing := typeB.NumOut() == 0
takesBytesOnly := typeB.NumIn() == 1 && typeB.In(0).Kind() == reflect.Slice && typeB.In(0).Elem().Kind() == reflect.Uint8
takesBytesAndDone := typeB.NumIn() == 2 &&
typeB.In(0).Kind() == reflect.Slice && typeB.In(0).Elem().Kind() == reflect.Uint8 &&
typeB.In(1).Kind() == reflect.Chan && typeB.In(1).Elem().Kind() == reflect.Interface
if !((takesBytesOnly || takesBytesAndDone) && returnsNothing) {
panic("SynchronizedBeforeSuite's second argument should be a function that returns nothing and either takes []byte or ([]byte, Done)")
}
if takesBytesAndDone {
return func(done chan<- interface{}) {
reflect.ValueOf(bodyB).Call([]reflect.Value{reflect.ValueOf(node.data), reflect.ValueOf(done)})
}
}
return func() {
reflect.ValueOf(bodyB).Call([]reflect.Value{reflect.ValueOf(node.data)})
}
}
|
