simplify integration tests (#148)

* Replace curl and tar commands with Rust crates

* Replace curl with reqwest

* Refactor TCP test to use TCP Listener instead of netcat

* test: wait until serve is ready

* check stderr instead

* fix lint errors

* Only do check on unix platforms

* Move to just a sleep

* Improve http test retry mechanism

Author: benbrandt

.github/workflows/test.yaml

@@ -8,6 +8,10 @@ on:
       - "CONTRIBUTING.md"
   workflow_dispatch:
 
+concurrency:
+  group: ${{ github.workflow }}-${{ github.ref }}
+  cancel-in-progress: true
+
 env:
   CARGO_TERM_COLOR: always
   WASI_SDK_VERSION: 20.46gf3a1f8991535

.gitignore

@@ -18,3 +18,4 @@ examples/cli/cli.wasm
 examples/cli/command
 examples/sandbox/sandbox
 examples/sandbox/sandbox.wasm
+wasi-sdk