test framework for proxy-wasm-go-sdk

With proxytest build tag, you can test your extension with the official command:

go test -tags=proxytest ./... 

This framework simulates the expected behavior of Envoyproxy, and you can test your extensions without running Envoy. For detail, see examples/*/main_test.go.

Note that we have not covered all the functionality, and the API is very likely to change in the future.