Test Environment Setup

1. Install Docker
2. Install gcloud cli
3. Setup the Spanner Emulator on your local machine
   • Setup emulator in Docker

     docker pull gcr.io/cloud-spanner-emulator/emulator
     docker run -p 9010:9010 -p 9020:9020 gcr.io/cloud-spanner-emulator/emulator

   • Create gcloud config to use when connecting to the emulator

     gcloud config configurations create emulator
     gcloud config set auth/disable_credentials true
     gcloud config set project proteinjs-test
     gcloud config set api_endpoint_overrides/spanner http://localhost:9020/

     • Note: to switch between configs gcloud config configurations activate [emulator | default]
   • Create instance

     gcloud spanner instances create proteinjs-test \
     --config=emulator-config --description="Protein JS Test Instance" --nodes=1

   • Create database

     gcloud spanner databases create test --instance=proteinjs-test

   • Execute cli query

       gcloud spanner databases execute-sql test \
         --instance='proteinjs-test' \
         --sql='select table_name from information_schema.tables'

4. Note: every time you restart the emulator, you need to re-create state (like the instance and the db)