Testing

The tests in this repository are system tests and run against live services, therefore, it takes a bit of configuration to run all of the tests locally.

Before you can run tests locally you must have:

The latest nox, pip, and gcp-python-repo-tools installed.
```
  $ sudo pip install --upgrade nox-automation
```
The Google Cloud SDK installed. You can do so with the following command:
```
  $ curl https://sdk.cloud.google.com | bash
```

System Dependencies

Running the complete suite may require system dependencies. Most of these should be installable via typical package managers like apt-get and brew.

For example, to install portaudio:

brew install portaudio

If you have trouble installing a necessary system library, try filing an issue.

Troubleshooting

PortAudio on OS X

See speech/api/README.md.

Preparing a project for testing

Most tests require you to have an active, billing-enabled project on the Google Cloud Console.

Creating resources

Some resources need to be created in a project ahead of time before testing. We have a script that can create everything needed:

gcloud config set project <your-project-id>
scripts/prepare-testing-project.sh

The script will also instruct you to follow a URL to enable APIs. You will need to do that.

Getting a service account key

From the Cloud Console, create a new Service Account and download its json key. Place this file in testing/service-account.json.

Create a new OAuth client ID. Create a file testing/client-secrets.json and write the client_id and client_secret to the file in the Client Secrets JSON format.

Environment variables

Copy testing/test-env.tmpl.sh to testing/test-env.sh, and update it with your configuration.
Run source testing/test-env.sh.
Run export GOOGLE_APPLICATION_CREDENTIALS=testing/service-account.json.
Run export GOOGLE_CLIENT_SECRETS=testing/client-secrets.json.

Test environments

We use nox to configure multiple python sessions:

tests Run all the tests for every sample. It's parameterized to run all the tests using the 2.7 and 3.5 interpreters.
gae contains tests for samples that run only in Google App Engine. This is everything in the appengine directory.
lint just runs the linter.

To see a list of the available sessions:

nox -l

To run tests for a particular session, with a particular parameter, invoke nox with the -s flag:

nox -s "tests(interpreter='python2.7')"

To run one particular session or provide additional parameters to py.test, invoke nox like this:

nox -s tests -- storage/cloud-client

Adding new tests

When adding a new top-level directory, be sure to edit .coveragerc to include it in coverage reporting.

To add new tests that require Google App Engine, you must place them in the appengine directory so that the py.test fixtures needed for App Engine are available.

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