Note

Google App Engine 1.8.6 supports unittest by appengine/aetest package. Use appengine/aetest.

testbed

Runs test codes with service stubs for Google App Engine Go.

To test applications which use App Engine services such as the datastore, developers can use the available stub implementations. Service stubs behave like the original service without permanent side effects. The datastore stub for example allows to write entities into memory without storing them to the actual datastore. This module makes using those stubs for testing easier.

Google App Engine SDK 1.7.5 or higher required.

Example

package yourapp

import (
      "appengine/datastore"
      "net/http"
      "testing"
      "github.com/najeira/testbed"
)

const (
      PYTHON    = `/usr/local/bin/python27`
      TESTBED   = `/usr/local/google_appengine/goroot/src/pkg/github.com/najeira/testbed/testbed.py`
      APPENGINE = `/usr/local/google_appengine`
)

func TestAllocateIDs(t *testing.T) {
      bed := testbed.NewTestbed(PYTHON, TESTBED, APPENGINE)
      bed.Start()
      defer bed.Close()

      // create a dummy context
      r, _ := http.NewRequest("GET", "http://example.com/", nil)
      c := bed.NewContext(r)

      // write your test codes here
      low, high, err := datastore.AllocateIDs(c, "Test", nil, 10)
      if err != nil {
              t.Errorf("got error: %v", err)
      }
      if high - low != 10 {
              t.Errorf("wrong values: %d, %d", low, high)
      }
}

Note

To use testbed with 1.7.6 - 1.8.4, apply a patch to appengine_internal/api_dev.go.

56,60c56,68
<     instanceConfig.AppID = string(c.AppId)
<     instanceConfig.APIPort = int(*c.ApiPort)
<     instanceConfig.VersionID = string(c.VersionId)
<     instanceConfig.InstanceID = *c.InstanceId
<     instanceConfig.Datacenter = *c.Datacenter
---
>     if c != nil {
>             instanceConfig.AppID = string(c.AppId)
>             instanceConfig.APIPort = int(*c.ApiPort)
>             instanceConfig.VersionID = string(c.VersionId)
>             instanceConfig.InstanceID = *c.InstanceId
>             instanceConfig.Datacenter = *c.Datacenter
>     } else {
>             instanceConfig.AppID = "app"
>             instanceConfig.APIPort = 54321
>             instanceConfig.VersionID = "version"
>             instanceConfig.InstanceID = "abc3dzac4"
>             instanceConfig.Datacenter = "us1"
>     }
121a130,132
>     if len(raw) == 0 {
>             return nil
>     }
247c258,259
< func init() { os.DisableWritesForAppEngine = true }
\ No newline at end of file
---
>
> // func init() { os.DisableWritesForAppEngine = true }

License

New BSD License.