Portier client test suite

This project contains a test suite for Portier client libraries. It is written in Go, but can test libraries in any language.

go build -o client-tester
./client-tester -bin some-executable

Where some-executable is an executable that wraps the client library to test, which we'll call 'integration'. The integration will be called with one argument: the origin of a test broker that's running locally. It should configure the client, then communicate over stdin/stdout with the test suite. Stderr can be used for any additional logging (e.g. exceptions).

The stdin/stdout protocol is line-based (\n terminated lines), and each line is a list of tab-separated strings. For requests sent by the test suite, the first string is a command followed by arguments. For responses sent by the integration, the first string is either ok followed by arguments, or err followed by a single string error description.

Commands are:

• echo <text>: integration replies with ok <text>
• auth <email>: integration replies with ok <auth URL>
• verify <id_token>: integration replies with ok <email>

Here's an example flow, where we illustrate tabs with ||, commands from the test suite with >>, and responses from the integration with <<:

>> echo || test 1
<< ok || test 1
>> auth || John@example.com
<< ok || http://imaginary-server.test/fake-auth-route?client_id=...
>> verify || eyJraWQiOiJiYWQga2V5IiwiYWxnIjoiU...
<< ok || john@example.com