Files
fn-serverless/api/agent/agent_test.go
2018-01-09 16:42:25 +00:00

456 lines
11 KiB
Go

package agent
import (
"bytes"
"fmt"
"io"
"net/http"
"net/http/httptest"
"strconv"
"strings"
"testing"
"time"
"github.com/fnproject/fn/api/datastore"
"github.com/fnproject/fn/api/models"
"github.com/fnproject/fn/api/mqs"
"github.com/sirupsen/logrus"
)
func checkExpectedHeaders(t *testing.T, expectedHeaders http.Header, receivedHeaders http.Header) {
checkMap := make([]string, 0, len(expectedHeaders))
for k, _ := range expectedHeaders {
checkMap = append(checkMap, k)
}
for k, vs := range receivedHeaders {
for i, v := range expectedHeaders[k] {
if i >= len(vs) || vs[i] != v {
t.Fatal("header mismatch", k, vs)
}
}
for i, _ := range checkMap {
if checkMap[i] == k {
checkMap = append(checkMap[:i], checkMap[i+1:]...)
break
}
}
}
if len(checkMap) > 0 {
t.Fatalf("expected headers not found=%v", checkMap)
}
}
func TestCallConfigurationRequest(t *testing.T) {
appName := "myapp"
path := "/sleeper"
image := "fnproject/sleeper"
const timeout = 1
const idleTimeout = 20
const memory = 256
typ := "sync"
format := "default"
cfg := models.Config{"APP_VAR": "FOO"}
rCfg := models.Config{"ROUTE_VAR": "BAR"}
ds := datastore.NewMockInit(
[]*models.App{
{Name: appName, Config: cfg},
},
[]*models.Route{
{
Config: rCfg,
Path: path,
AppName: appName,
Image: image,
Type: typ,
Format: format,
Timeout: timeout,
IdleTimeout: idleTimeout,
Memory: memory,
},
}, nil,
)
a := New(NewCachedDataAccess(NewDirectDataAccess(ds, ds, new(mqs.Mock))))
defer a.Close()
w := httptest.NewRecorder()
method := "GET"
url := "http://127.0.0.1:8080/r/" + appName + path
payload := "payload"
contentLength := strconv.Itoa(len(payload))
req, err := http.NewRequest(method, url, strings.NewReader(payload))
if err != nil {
t.Fatal(err)
}
req.Header.Add("MYREALHEADER", "FOOLORD")
req.Header.Add("MYREALHEADER", "FOOPEASANT")
req.Header.Add("Content-Length", contentLength)
req.Header.Add("FN_PATH", "thewrongroute") // ensures that this doesn't leak out, should be overwritten
// let's assume we got there params from the URL
params := make(Params, 0, 2)
params = append(params, Param{Key: "YOGURT", Value: "garlic"})
params = append(params, Param{Key: "LEGUME", Value: "garbanzo"})
call, err := a.GetCall(
WithWriter(w), // XXX (reed): order matters [for now]
FromRequest(appName, path, req, params),
)
if err != nil {
t.Fatal(err)
}
model := call.Model()
// make sure the values are all set correctly
if model.ID == "" {
t.Fatal("model does not have id, GetCall should assign id")
}
if model.AppName != appName {
t.Fatal("app name mismatch", model.AppName, appName)
}
if model.Path != path {
t.Fatal("path mismatch", model.Path, path)
}
if model.Image != image {
t.Fatal("image mismatch", model.Image, image)
}
if model.Type != "sync" {
t.Fatal("route type mismatch", model.Type)
}
if model.Priority == nil {
t.Fatal("GetCall should make priority non-nil so that async works because for whatever reason some clowns plumbed it all over the mqs even though the user can't specify it gg")
}
if model.Timeout != timeout {
t.Fatal("timeout mismatch", model.Timeout, timeout)
}
if model.IdleTimeout != idleTimeout {
t.Fatal("idle timeout mismatch", model.IdleTimeout, idleTimeout)
}
if time.Time(model.CreatedAt).IsZero() {
t.Fatal("GetCall should stamp CreatedAt, got nil timestamp")
}
if model.URL != url {
t.Fatal("url mismatch", model.URL, url)
}
if model.Method != method {
t.Fatal("method mismatch", model.Method, method)
}
if model.Payload != "" { // NOTE: this is expected atm
t.Fatal("GetCall FromRequest should not fill payload, got non-empty payload", model.Payload)
}
expectedBase := map[string]string{
"FN_FORMAT": format,
"FN_APP_NAME": appName,
"FN_PATH": path,
"FN_MEMORY": strconv.Itoa(memory),
"FN_TYPE": typ,
"APP_VAR": "FOO",
"ROUTE_VAR": "BAR",
}
expectedEnv := make(map[string]string)
for k, v := range expectedBase {
expectedEnv[k] = v
}
for k, v := range expectedBase {
if v2 := model.BaseEnv[k]; v2 != v {
t.Fatal("base var mismatch", k, v, v2, model.BaseEnv)
}
delete(expectedBase, k)
}
if len(expectedBase) > 0 {
t.Fatal("got extra vars in base env set, add me to tests ;)", expectedBase)
}
expectedEnv["FN_CALL_ID"] = model.ID
expectedEnv["FN_METHOD"] = method
expectedEnv["FN_REQUEST_URL"] = url
// do this before the "real" headers get sucked in cuz they are formatted differently
expectedHeaders := make(http.Header)
for k, v := range expectedEnv {
expectedHeaders.Add(k, v)
}
// from the request headers (look different in env than in req.Header, idk, up to user anger)
// req headers down cases things
expectedEnv["FN_HEADER_Myrealheader"] = "FOOLORD, FOOPEASANT"
expectedEnv["FN_HEADER_Content_Length"] = contentLength
for k, v := range expectedEnv {
if v2 := model.EnvVars[k]; v2 != v {
t.Fatal("env var mismatch", k, v, v2, model.EnvVars)
}
delete(expectedEnv, k)
}
if len(expectedEnv) > 0 {
t.Fatal("got extra vars in base env set, add me to tests ;)", expectedBase)
}
expectedHeaders.Add("MYREALHEADER", "FOOLORD")
expectedHeaders.Add("MYREALHEADER", "FOOPEASANT")
expectedHeaders.Add("Content-Length", contentLength)
checkExpectedHeaders(t, expectedHeaders, req.Header)
if w.Header()["Fn_call_id"][0] != model.ID {
t.Fatal("response writer should have the call id, or else")
}
// TODO check response writer for route headers
// TODO idk what param even is or how to get them, but need to test those
// TODO we should double check the things we're rewriting defaults of, like type, format, timeout, idle_timeout
}
func TestCallConfigurationModel(t *testing.T) {
appName := "myapp"
path := "/sleeper"
image := "fnproject/sleeper"
const timeout = 1
const idleTimeout = 20
const memory = 256
method := "GET"
url := "http://127.0.0.1:8080/r/" + appName + path
payload := "payload"
typ := "sync"
format := "default"
env := map[string]string{
"FN_FORMAT": format,
"FN_APP_NAME": appName,
"FN_PATH": path,
"FN_MEMORY": strconv.Itoa(memory),
"FN_TYPE": typ,
"APP_VAR": "FOO",
"ROUTE_VAR": "BAR",
"DOUBLE_VAR": "BIZ, BAZ",
}
cm := &models.Call{
BaseEnv: env,
EnvVars: env,
AppName: appName,
Path: path,
Image: image,
Type: typ,
Format: format,
Timeout: timeout,
IdleTimeout: idleTimeout,
Memory: memory,
Payload: payload,
URL: url,
Method: method,
}
// FromModel doesn't need a datastore, for now...
ds := datastore.NewMockInit(nil, nil, nil)
a := New(NewCachedDataAccess(NewDirectDataAccess(ds, ds, new(mqs.Mock))))
defer a.Close()
callI, err := a.GetCall(FromModel(cm))
if err != nil {
t.Fatal(err)
}
// make sure headers seem reasonable
req := callI.(*call).req
// NOTE these are added as is atm, and if the env vars were comma joined
// they are not again here comma separated.
expectedHeaders := make(http.Header)
for k, v := range env {
expectedHeaders.Add(k, v)
}
checkExpectedHeaders(t, expectedHeaders, req.Header)
var b bytes.Buffer
io.Copy(&b, req.Body)
if b.String() != payload {
t.Fatal("expected payload to match, but it was a lie")
}
}
func TestAsyncCallHeaders(t *testing.T) {
appName := "myapp"
path := "/sleeper"
image := "fnproject/sleeper"
const timeout = 1
const idleTimeout = 20
const memory = 256
method := "GET"
url := "http://127.0.0.1:8080/r/" + appName + path
payload := "payload"
typ := "async"
format := "http"
contentType := "suberb_type"
contentLength := strconv.FormatInt(int64(len(payload)), 10)
env := map[string]string{
"FN_FORMAT": format,
"FN_APP_NAME": appName,
"FN_PATH": path,
"FN_MEMORY": strconv.Itoa(memory),
"FN_TYPE": typ,
"APP_VAR": "FOO",
"ROUTE_VAR": "BAR",
"DOUBLE_VAR": "BIZ, BAZ",
// FromRequest would insert these from original HTTP request
"Fn_header_content_type": contentType,
"Fn_header_content_length": contentLength,
}
cm := &models.Call{
BaseEnv: env,
EnvVars: env,
AppName: appName,
Path: path,
Image: image,
Type: typ,
Format: format,
Timeout: timeout,
IdleTimeout: idleTimeout,
Memory: memory,
Payload: payload,
URL: url,
Method: method,
}
// FromModel doesn't need a datastore, for now...
ds := datastore.NewMockInit(nil, nil, nil)
a := New(NewCachedDataAccess(NewDirectDataAccess(ds, ds, new(mqs.Mock))))
defer a.Close()
callI, err := a.GetCall(FromModel(cm))
if err != nil {
t.Fatal(err)
}
// make sure headers seem reasonable
req := callI.(*call).req
// NOTE these are added as is atm, and if the env vars were comma joined
// they are not again here comma separated.
expectedHeaders := make(http.Header)
for k, v := range env {
expectedHeaders.Add(k, v)
}
// These should be here based on payload length and/or fn_header_* original headers
expectedHeaders.Set("Content-Type", contentType)
expectedHeaders.Set("Content-Length", strconv.FormatInt(int64(len(payload)), 10))
checkExpectedHeaders(t, expectedHeaders, req.Header)
var b bytes.Buffer
io.Copy(&b, req.Body)
if b.String() != payload {
t.Fatal("expected payload to match, but it was a lie")
}
}
func TestLoggerIsStringerAndWorks(t *testing.T) {
// TODO test limit writer, logrus writer, etc etc
loggyloo := logrus.WithFields(logrus.Fields{"yodawg": true})
logger := setupLogger(loggyloo)
if _, ok := logger.(fmt.Stringer); !ok {
// NOTE: if you are reading, maybe what you've done is ok, but be aware we were relying on this for optimization...
t.Fatal("you turned the logger into something inefficient and possibly better all at the same time, how dare ye!")
}
str := "0 line\n1 line\n2 line\n\n4 line"
logger.Write([]byte(str))
strGot := logger.(fmt.Stringer).String()
if strGot != str {
t.Fatal("logs did not match expectations, like being an adult", strGot, str)
}
logger.Close() // idk maybe this would panic might as well call this
// TODO we could check for the toilet to flush here to logrus
}
func TestSubmitError(t *testing.T) {
appName := "myapp"
path := "/error"
image := "fnproject/error"
const timeout = 10
const idleTimeout = 20
const memory = 256
method := "GET"
url := "http://127.0.0.1:8080/r/" + appName + path
payload := "payload"
typ := "sync"
format := "default"
env := map[string]string{
"FN_FORMAT": format,
"FN_APP_NAME": appName,
"FN_PATH": path,
"FN_MEMORY": strconv.Itoa(memory),
"FN_TYPE": typ,
"APP_VAR": "FOO",
"ROUTE_VAR": "BAR",
"DOUBLE_VAR": "BIZ, BAZ",
}
cm := &models.Call{
BaseEnv: env,
EnvVars: env,
AppName: appName,
Path: path,
Image: image,
Type: typ,
Format: format,
Timeout: timeout,
IdleTimeout: idleTimeout,
Memory: memory,
Payload: payload,
URL: url,
Method: method,
}
// FromModel doesn't need a datastore, for now...
ds := datastore.NewMockInit(nil, nil, nil)
a := New(NewCachedDataAccess(NewDirectDataAccess(ds, ds, new(mqs.Mock))))
defer a.Close()
callI, err := a.GetCall(FromModel(cm))
if err != nil {
t.Fatal(err)
}
err = a.Submit(callI)
if err == nil {
t.Fatal("expected error but got none")
}
if cm.Status != "error" {
t.Fatal("expected status to be set to 'error' but was", cm.Status)
}
if cm.Error == "" {
t.Fatal("expected error string to be set on call")
}
}