milo: dedup testdata

appengine/cmd/milo/buildbot/build.go

 // Copyright 2016 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 buildbot
 
 import (
         "encoding/json"
         "fmt"
         "io/ioutil"
@@ skipping 359 matching lines @@
                         }
                 } else {
                         log.Warningf(c, "Found issue but not rietveld property.")
                 }
         }
         return ss
 }
 
 func getDebugBuild(c context.Context, builder, buildNum string) (*buildbotBuild, error) {
         fname := fmt.Sprintf("%s.%s.json", builder, buildNum)
-        path := filepath.Join("testdata", "buildbot", fname)
+        // ../buildbot below assumes that
+        // - this code is not executed by tests outside of this dir
+        // - this dir is a sibling of frontend dir
+        path := filepath.Join("..", "buildbot", "testdata", fname)
         raw, err := ioutil.ReadFile(path)
         if err != nil {
                 return nil, err
         }
         b := &buildbotBuild{}
         return b, json.Unmarshal(raw, b)
 }
 
 // build fetches a buildbot build and translates it into a miloBuild.
 func build(c context.Context, master, builder, buildNum string) (*resp.MiloBuild, error) {
@@ skipping 10 matching lines @@
 
         // TODO(hinoka): Do all fields concurrently.
         return &resp.MiloBuild{
                 SourceStamp:   sourcestamp(c, b),
                 Summary:       summary(b),
                 Components:    components(b),
                 PropertyGroup: properties(b),
                 Blame:         blame(b),
         }, nil
 }