mirror of
https://github.com/fnproject/fn.git
synced 2022-10-28 21:29:17 +03:00
515 lines
18 KiB
Go
515 lines
18 KiB
Go
package server
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import (
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"bytes"
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"context"
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"fmt"
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"io/ioutil"
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"net/http"
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"os"
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"reflect"
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"strings"
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"testing"
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"github.com/fnproject/fn/api/agent"
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"github.com/fnproject/fn/api/datastore"
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"github.com/fnproject/fn/api/models"
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)
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func envTweaker(name, value string) func() {
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bck, ok := os.LookupEnv(name)
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err := os.Setenv(name, value)
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if err != nil {
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panic(err.Error())
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}
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return func() {
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var err error
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if !ok {
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err = os.Unsetenv(name)
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} else {
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err = os.Setenv(name, bck)
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}
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if err != nil {
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panic(err.Error())
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}
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}
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}
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func testRunner(_ *testing.T, args ...interface{}) (agent.Agent, context.CancelFunc) {
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r := agent.New()
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return r, func() { r.Close() }
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}
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func checkLogs(t *testing.T, tnum int, callID string, expected []string) bool {
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// TODO(reed): test these after adding an extension to get these things, but not the old way
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return true
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}
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func TestTriggerRunnerGet(t *testing.T) {
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buf := setLogBuffer()
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app := &models.App{ID: "app_id", Name: "myapp", Config: models.Config{}}
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ds := datastore.NewMockInit(
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[]*models.App{app},
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)
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rnr, cancel := testRunner(t, ds)
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defer cancel()
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srv := testServer(ds, rnr, ServerTypeFull)
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for i, test := range []struct {
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path string
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body string
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expectedCode int
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expectedError error
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}{
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{"/t/app/route", "", http.StatusNotFound, models.ErrAppsNotFound},
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{"/t/myapp/route", "", http.StatusNotFound, models.ErrTriggerNotFound},
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} {
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_, rec := routerRequest(t, srv.Router, "GET", test.path, nil)
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if rec.Code != test.expectedCode {
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t.Log(buf.String())
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t.Fatalf("Test %d: Expected status code for path %s to be %d but was %d",
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i, test.path, test.expectedCode, rec.Code)
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}
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if test.expectedError != nil {
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resp := getErrorResponse(t, rec)
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if !strings.Contains(resp.Message, test.expectedError.Error()) {
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t.Log(buf.String())
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t.Errorf("Test %d: Expected error message to have `%s`, but got `%s`",
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i, test.expectedError.Error(), resp.Message)
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}
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}
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}
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}
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func TestTriggerRunnerPost(t *testing.T) {
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buf := setLogBuffer()
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app := &models.App{ID: "app_id", Name: "myapp", Config: models.Config{}}
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ds := datastore.NewMockInit(
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[]*models.App{app},
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)
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rnr, cancel := testRunner(t, ds)
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defer cancel()
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srv := testServer(ds, rnr, ServerTypeFull)
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for i, test := range []struct {
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path string
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body string
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expectedCode int
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expectedError error
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}{
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{"/t/app/route", `{ "payload": "" }`, http.StatusNotFound, models.ErrAppsNotFound},
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{"/t/myapp/route", `{ "payload": "" }`, http.StatusNotFound, models.ErrTriggerNotFound},
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} {
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body := bytes.NewBuffer([]byte(test.body))
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_, rec := routerRequest(t, srv.Router, "POST", test.path, body)
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if rec.Code != test.expectedCode {
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t.Log(buf.String())
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t.Errorf("Test %d: Expected status code for path %s to be %d but was %d",
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i, test.path, test.expectedCode, rec.Code)
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}
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if test.expectedError != nil {
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resp := getErrorResponse(t, rec)
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respMsg := resp.Message
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expMsg := test.expectedError.Error()
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if respMsg != expMsg && !strings.Contains(respMsg, expMsg) {
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t.Log(buf.String())
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t.Errorf("Test %d: Expected error message to have `%s`",
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i, test.expectedError.Error())
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}
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}
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}
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}
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func TestTriggerRunnerExecEmptyBody(t *testing.T) {
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buf := setLogBuffer()
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isFailure := false
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defer func() {
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if isFailure {
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t.Log(buf.String())
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}
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}()
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rCfg := map[string]string{"ENABLE_HEADER": "yes", "ENABLE_FOOTER": "yes"} // enable container start/end header/footer
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rImg := "fnproject/fn-test-utils"
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app := &models.App{ID: "app_id", Name: "soup"}
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f1 := &models.Fn{ID: "hot", Name: "hot", AppID: app.ID, Image: rImg, ResourceConfig: models.ResourceConfig{Memory: 64, Timeout: 10, IdleTimeout: 20}, Config: rCfg}
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ds := datastore.NewMockInit(
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[]*models.App{app},
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[]*models.Fn{f1},
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[]*models.Trigger{
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{ID: "t2", Name: "t2", AppID: app.ID, FnID: f1.ID, Type: "http", Source: "/hot"},
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},
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)
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rnr, cancelrnr := testRunner(t, ds)
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defer cancelrnr()
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srv := testServer(ds, rnr, ServerTypeFull)
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emptyBody := `{"echoContent": "_TRX_ID_", "isDebug": true, "isEmptyBody": true}`
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// Test hot cases twice to rule out hot-containers corrupting next request.
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testCases := []struct {
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path string
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}{
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{"/t/soup/hot"},
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{"/t/soup/hot"},
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}
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for i, test := range testCases {
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t.Run(fmt.Sprintf("%d_%s", i, strings.Replace(test.path, "/", "_", -1)), func(t *testing.T) {
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trx := fmt.Sprintf("_trx_%d_", i)
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body := strings.NewReader(strings.Replace(emptyBody, "_TRX_ID_", trx, 1))
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_, rec := routerRequest(t, srv.Router, "GET", test.path, body)
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respBytes, _ := ioutil.ReadAll(rec.Body)
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respBody := string(respBytes)
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maxBody := len(respBody)
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if maxBody > 1024 {
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maxBody = 1024
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}
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if rec.Code != http.StatusOK {
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isFailure = true
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t.Errorf("Test %d: Expected status code to be %d but was %d. body: %s",
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i, http.StatusOK, rec.Code, respBody[:maxBody])
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} else if len(respBytes) != 0 {
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isFailure = true
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t.Errorf("Test %d: Expected empty body but got %d. body: %s",
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i, len(respBytes), respBody[:maxBody])
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}
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})
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}
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}
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func TestTriggerRunnerExecution(t *testing.T) {
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buf := setLogBuffer()
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isFailure := false
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tweaker1 := envTweaker("FN_MAX_RESPONSE_SIZE", "2048")
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tweaker2 := envTweaker("FN_MAX_HDR_RESPONSE_SIZE", "1024")
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defer tweaker1()
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defer tweaker2()
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// Log once after we are done, flow of events are important (hot/cold containers, idle timeout, etc.)
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// for figuring out why things failed.
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defer func() {
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if isFailure {
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t.Log(buf.String())
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}
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}()
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rCfg := map[string]string{"ENABLE_HEADER": "yes", "ENABLE_FOOTER": "yes"} // enable container start/end header/footer
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rImg := "fnproject/fn-test-utils"
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rImgBs1 := "fnproject/imagethatdoesnotexist"
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rImgBs2 := "localhost:5050/fnproject/imagethatdoesnotexist"
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app := &models.App{ID: "app_id", Name: "myapp"}
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dneFn := &models.Fn{ID: "default_dne_fn_id", Name: "default_dne_fn", AppID: app.ID, Image: rImgBs1, ResourceConfig: models.ResourceConfig{Memory: 64, Timeout: 30, IdleTimeout: 30}, Config: rCfg}
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dneRegistryFn := &models.Fn{ID: "http_dnereg_fn_id", Name: "http_dnereg_fn", AppID: app.ID, Image: rImgBs2, ResourceConfig: models.ResourceConfig{Memory: 64, Timeout: 30, IdleTimeout: 30}, Config: rCfg}
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httpStreamFn := &models.Fn{ID: "http_stream_fn_id", Name: "http_stream_fn", AppID: app.ID, Image: rImg, ResourceConfig: models.ResourceConfig{Memory: 64, Timeout: 30, IdleTimeout: 30}, Config: rCfg}
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ds := datastore.NewMockInit(
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[]*models.App{app},
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[]*models.Fn{dneFn, dneRegistryFn, httpStreamFn},
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[]*models.Trigger{
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{ID: "6", Name: "6", Source: "/mydne", Type: "http", AppID: app.ID, FnID: dneFn.ID},
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{ID: "8", Name: "8", Source: "/mydneregistry", Type: "http", AppID: app.ID, FnID: dneRegistryFn.ID},
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{ID: "13", Name: "13", Source: "/httpstream", Type: "http", AppID: app.ID, FnID: httpStreamFn.ID},
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},
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)
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rnr, cancelrnr := testRunner(t, ds)
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defer cancelrnr()
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srv := testServer(ds, rnr, ServerTypeFull)
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expHeaders := map[string][]string{"Content-Type": {"application/json; charset=utf-8"}}
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expCTHeaders := map[string][]string{"Content-Type": {"foo/bar"}}
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// Checking for EndOfLogs currently depends on scheduling of go-routines (in docker/containerd) that process stderr & stdout.
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// Therefore, not testing for EndOfLogs for hot containers (which has complex I/O processing) anymore.
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multiLogExpectHot := []string{"BeginOfLogs" /*, "EndOfLogs" */}
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crasher := `{"echoContent": "_TRX_ID_", "isDebug": true, "isCrash": true}` // crash container
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oomer := `{"echoContent": "_TRX_ID_", "isDebug": true, "allocateMemory": 120000000000}` // ask for 120GB
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ok := `{"echoContent": "_TRX_ID_", "responseContentType": "application/json; charset=utf-8", "isDebug": true}` // good response / ok
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respTypeLie := `{"echoContent": "_TRX_ID_", "responseContentType": "foo/bar", "isDebug": true}` // Content-Type: foo/bar
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// sleep between logs and with debug enabled, fn-test-utils will log header/footer below:
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multiLog := `{"echoContent": "_TRX_ID_", "sleepTime": 1000, "isDebug": true}`
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bigoutput := `{"echoContent": "_TRX_ID_", "isDebug": true, "trailerRepeat": 1000}` // 1000 trailers to exceed 2K
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bighdroutput := `{"echoContent": "_TRX_ID_", "isDebug": true, "returnHeaders": {"zoo": ["` + strings.Repeat("a", 1024) + `"]}}` // big header to exceed
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smalloutput := `{"echoContent": "_TRX_ID_", "isDebug": true, "trailerRepeat": 1, "responseContentType": "application/json; charset=utf-8"}` // 1 trailer < 2K
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statusChecker := `{"echoContent": "_TRX_ID_", "isDebug": true, "responseCode":202, "responseContentType": "application/json; charset=utf-8"}`
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// these tests are such a pita it's easier to comment most of them out. instead of fixing it i'm doing this fuck me yea
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_, _, _, _, _, _, _, _, _, _, _ = expHeaders, expCTHeaders, multiLogExpectHot, crasher, oomer, ok, respTypeLie, multiLog, bigoutput, smalloutput, statusChecker
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fooHeader := map[string][]string{"Content-Type": {"application/hateson"}, "Test-Header": {"foo"}}
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expFooHeaders := map[string][]string{"Content-Type": {"application/hateson"}, "Return-Header": {"foo", "bar"}}
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expFooHeadersBody := `{"echoContent": "_TRX_ID_",
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"expectHeaders": {
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"Content-Type":["application/hateson"],
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"Test-Header":["foo"]
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},
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"returnHeaders": {
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"Return-Header":["foo","bar"]
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},
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"responseContentType":"application/hateson",
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"isDebug": true}`
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testCases := []struct {
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path string
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headers map[string][]string
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body string
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method string
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expectedCode int
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expectedHeaders map[string][]string
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expectedErrSubStr string
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expectedLogsSubStr []string
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}{
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// XXX(reed): we test a lot of stuff in invoke, we really only need to test headers / status code here dude...
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{"/t/myapp/httpstream", nil, ok, "POST", http.StatusOK, expHeaders, "", nil},
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{"/t/myapp/httpstream", nil, statusChecker, "POST", 202, expHeaders, "", nil},
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{"/t/myapp/httpstream", fooHeader, expFooHeadersBody, "POST", http.StatusOK, expFooHeaders, "", nil},
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// NOTE: we can't test bad response framing anymore easily (eg invalid http response), should we even worry about it?
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{"/t/myapp/httpstream", nil, respTypeLie, "POST", http.StatusOK, expCTHeaders, "", nil},
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{"/t/myapp/httpstream", nil, crasher, "POST", http.StatusBadGateway, expHeaders, "error receiving function response", nil},
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// XXX(reed): we could stop buffering function responses so that we can stream things?
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{"/t/myapp/httpstream", nil, bigoutput, "POST", http.StatusBadGateway, nil, "function response too large", nil},
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{"/t/myapp/httpstream", nil, bighdroutput, "POST", http.StatusBadGateway, nil, "function response header too large", nil},
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{"/t/myapp/httpstream", nil, smalloutput, "POST", http.StatusOK, expHeaders, "", nil},
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// XXX(reed): meh we really should try to get oom out, but maybe it's better left to the logs?
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{"/t/myapp/httpstream", nil, oomer, "POST", http.StatusBadGateway, nil, "error receiving function response", nil},
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{"/t/myapp/mydne", nil, ``, "GET", http.StatusNotFound, nil, "pull access denied", nil},
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{"/t/myapp/mydneregistry", nil, ``, "GET", http.StatusBadGateway, nil, "connection refused", nil},
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// XXX(reed): what are these?
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{"/t/myapp/httpstream", nil, multiLog, "GET", http.StatusOK, nil, "", multiLogExpectHot},
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}
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callIds := make([]string, len(testCases))
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for i, test := range testCases {
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t.Run(fmt.Sprintf("Test_%d_%s", i, strings.Replace(test.path, "/", "_", -1)), func(t *testing.T) {
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trx := fmt.Sprintf("_trx_%d_", i)
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body := strings.NewReader(strings.Replace(test.body, "_TRX_ID_", trx, 1))
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req := createRequest(t, test.method, test.path, body)
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if test.headers != nil {
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req.Header = test.headers
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}
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_, rec := routerRequest2(t, srv.Router, req)
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respBytes, _ := ioutil.ReadAll(rec.Body)
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respBody := string(respBytes)
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maxBody := len(respBody)
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if maxBody > 1024 {
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maxBody = 1024
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}
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callIds[i] = rec.Header().Get("Fn-Call-Id")
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if rec.Code != test.expectedCode {
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isFailure = true
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t.Errorf("Test %d: Expected status code to be %d but was %d. body: %s",
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i, test.expectedCode, rec.Code, respBody[:maxBody])
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}
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if rec.Code == http.StatusOK && !strings.Contains(respBody, trx) {
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isFailure = true
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t.Errorf("Test %d: Expected response to include %s but got body: %s",
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i, trx, respBody[:maxBody])
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}
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if test.expectedErrSubStr != "" && !strings.Contains(respBody, test.expectedErrSubStr) {
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isFailure = true
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t.Errorf("Test %d: Expected response to include %s but got body: %s",
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i, test.expectedErrSubStr, respBody[:maxBody])
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}
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if test.expectedHeaders != nil {
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for name, header := range test.expectedHeaders {
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if !reflect.DeepEqual(header, rec.Header()[name]) {
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isFailure = true
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t.Errorf("Test %d: Expected header `%s` to be `%v` but was `%v`. body: `%s`",
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i, name, header, rec.Header()[name], respBody)
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}
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}
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}
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})
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}
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for i, test := range testCases {
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if test.expectedLogsSubStr != nil {
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if !checkLogs(t, i, callIds[i], test.expectedLogsSubStr) {
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isFailure = true
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}
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}
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}
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}
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func TestTriggerRunnerTimeout(t *testing.T) {
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buf := setLogBuffer()
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isFailure := false
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// Log once after we are done, flow of events are important (hot/cold containers, idle timeout, etc.)
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// for figuring out why things failed.
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defer func() {
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if isFailure {
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t.Log(buf.String())
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}
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}()
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models.MaxMemory = uint64(1024 * 1024 * 1024) // 1024 TB
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hugeMem := uint64(models.MaxMemory - 1)
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app := &models.App{ID: "app_id", Name: "myapp", Config: models.Config{}}
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fn := &models.Fn{ID: "hot", Name: "hot", AppID: app.ID, Image: "fnproject/fn-test-utils", ResourceConfig: models.ResourceConfig{Memory: 128, Timeout: 4, IdleTimeout: 30}}
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bigMemHotFn := &models.Fn{ID: "bigmemhot", Name: "bigmemhot", AppID: app.ID, Image: "fnproject/fn-test-utils", ResourceConfig: models.ResourceConfig{Memory: hugeMem, Timeout: 4, IdleTimeout: 30}}
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ds := datastore.NewMockInit(
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[]*models.App{app},
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[]*models.Fn{fn, bigMemHotFn},
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[]*models.Trigger{
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{ID: "2", Name: "2", Source: "/hot", Type: "http", AppID: app.ID, FnID: fn.ID},
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{ID: "5", Name: "5", Source: "/bigmem-hot", Type: "http", AppID: app.ID, FnID: bigMemHotFn.ID},
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},
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)
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rnr, cancelrnr := testRunner(t, ds)
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defer cancelrnr()
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srv := testServer(ds, rnr, ServerTypeFull)
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for i, test := range []struct {
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path string
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body string
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method string
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expectedCode int
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expectedHeaders map[string][]string
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}{
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{"/t/myapp/hot", `{"echoContent": "_TRX_ID_", "sleepTime": 5000, "isDebug": true}`, "POST", http.StatusGatewayTimeout, nil},
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{"/t/myapp/hot", `{"echoContent": "_TRX_ID_", "sleepTime": 0, "isDebug": true}`, "POST", http.StatusOK, nil},
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{"/t/myapp/bigmem-hot", `{"echoContent": "_TRX_ID_", "sleepTime": 0, "isDebug": true}`, "POST", http.StatusBadRequest, nil},
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} {
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t.Run(fmt.Sprintf("%d_%s", i, strings.Replace(test.path, "/", "_", -1)), func(t *testing.T) {
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trx := fmt.Sprintf("_trx_%d_", i)
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body := strings.NewReader(strings.Replace(test.body, "_TRX_ID_", trx, 1))
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_, rec := routerRequest(t, srv.Router, test.method, test.path, body)
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respBytes, _ := ioutil.ReadAll(rec.Body)
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respBody := string(respBytes)
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maxBody := len(respBody)
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if maxBody > 1024 {
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maxBody = 1024
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}
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if rec.Code != test.expectedCode {
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isFailure = true
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t.Errorf("Test %d: Expected status code to be %d but was %d body: %#v",
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i, test.expectedCode, rec.Code, respBody[:maxBody])
|
|
}
|
|
|
|
if rec.Code == http.StatusOK && !strings.Contains(respBody, trx) {
|
|
isFailure = true
|
|
t.Errorf("Test %d: Expected response to include %s but got body: %s",
|
|
i, trx, respBody[:maxBody])
|
|
|
|
}
|
|
|
|
if test.expectedHeaders != nil {
|
|
for name, header := range test.expectedHeaders {
|
|
if header[0] != rec.Header().Get(name) {
|
|
isFailure = true
|
|
t.Errorf("Test %d: Expected header `%s` to be %s but was %s body: %#v",
|
|
i, name, header[0], rec.Header().Get(name), respBody[:maxBody])
|
|
}
|
|
}
|
|
}
|
|
})
|
|
}
|
|
}
|
|
|
|
// Minimal test that checks the possibility of invoking concurrent hot sync functions.
|
|
func TestTriggerRunnerMinimalConcurrentHotSync(t *testing.T) {
|
|
buf := setLogBuffer()
|
|
|
|
app := &models.App{ID: "app_id", Name: "myapp", Config: models.Config{}}
|
|
fn := &models.Fn{ID: "fn_id", AppID: app.ID, Name: "myfn", Image: "fnproject/fn-test-utils", ResourceConfig: models.ResourceConfig{Memory: 128, Timeout: 30, IdleTimeout: 5}}
|
|
ds := datastore.NewMockInit(
|
|
[]*models.App{app},
|
|
[]*models.Fn{fn},
|
|
[]*models.Trigger{{Name: "1", Source: "/hot", AppID: app.ID, FnID: fn.ID, Type: "http"}},
|
|
)
|
|
|
|
rnr, cancelrnr := testRunner(t, ds)
|
|
defer cancelrnr()
|
|
|
|
srv := testServer(ds, rnr, ServerTypeFull)
|
|
|
|
for i, test := range []struct {
|
|
path string
|
|
body string
|
|
method string
|
|
expectedCode int
|
|
expectedHeaders map[string][]string
|
|
}{
|
|
{"/t/myapp/hot", `{"sleepTime": 100, "isDebug": true}`, "POST", http.StatusOK, nil},
|
|
} {
|
|
errs := make(chan error)
|
|
numCalls := 4
|
|
for k := 0; k < numCalls; k++ {
|
|
go func() {
|
|
body := strings.NewReader(test.body)
|
|
_, rec := routerRequest(t, srv.Router, test.method, test.path, body)
|
|
|
|
if rec.Code != test.expectedCode {
|
|
t.Log(buf.String())
|
|
errs <- fmt.Errorf("Test %d: Expected status code to be %d but was %d body: %#v",
|
|
i, test.expectedCode, rec.Code, rec.Body.String())
|
|
return
|
|
}
|
|
|
|
if test.expectedHeaders == nil {
|
|
errs <- nil
|
|
return
|
|
}
|
|
for name, header := range test.expectedHeaders {
|
|
if header[0] != rec.Header().Get(name) {
|
|
t.Log(buf.String())
|
|
errs <- fmt.Errorf("Test %d: Expected header `%s` to be %s but was %s body: %#v",
|
|
i, name, header[0], rec.Header().Get(name), rec.Body.String())
|
|
return
|
|
}
|
|
}
|
|
errs <- nil
|
|
}()
|
|
}
|
|
for k := 0; k < numCalls; k++ {
|
|
err := <-errs
|
|
if err != nil {
|
|
t.Errorf("%v", err)
|
|
}
|
|
}
|
|
}
|
|
}
|