Milo: Prefetch logs that are failures

milo/appengine/swarming/build_test.go

 // Copyright 2015 The LUCI Authors. All rights reserved.
 // Use of this source code is governed under the Apache License, Version 2.0
 // that can be found in the LICENSE file.
 
 package swarming
 
 import (
         "encoding/json"
         "flag"
         "fmt"
@@ skipping 24 matching lines @@
 
 }
 
 func TestBuild(t *testing.T) {
         c := context.Background()
         c, _ = testclock.UseTime(c, time.Date(2016, time.March, 14, 11, 0, 0, 0, time.UTC))
 
         if *generate {
                 for _, tc := range getTestCases() {
                         fmt.Printf("Generating expectations for %s\n", tc)
-                        build, err := swarmingBuildImpl(c, "foo", "debug", tc)
+                        build, _, err := swarmingBuildImpl(c, "foo", "debug", tc)
                         if err != nil {
                                 panic(fmt.Errorf("Could not run swarmingBuildImpl for %s: %s", tc, err))
                         }
                         buildJSON, err := json.MarshalIndent(build, "", "  ")
                         if err != nil {
                                 panic(fmt.Errorf("Could not JSON marshal %s: %s", tc, err))
                         }
                         filename := path.Join("expectations", tc+".json")
                         err = ioutil.WriteFile(filename, []byte(buildJSON), 0644)
                         if err != nil {
                                 panic(fmt.Errorf("Encountered error while trying to write to %s: %s", filename, err))
                         }
                 }
                 return
         }
 
         Convey(`A test Environment`, t, func() {
                 for _, tc := range getTestCases() {
                         Convey(fmt.Sprintf("Test Case: %s", tc), func() {
-                                build, err := swarmingBuildImpl(c, "foo", "debug", tc)
+                                build, _, err := swarmingBuildImpl(c, "foo", "debug", tc)
                                 So(err, ShouldBeNil)
                                 So(build, shouldMatchExpectationsFor, tc+".json")
                         })
                 }
         })
 }