Fix racey wasm test

.github/workflows/ci.yml

@@ -4,19 +4,19 @@ on: [push]
 jobs:
   fmt:
     runs-on: ubuntu-latest
-    container: nhooyr/websocket-ci@sha256:54a12b52be98d2d1588a054cfce35d17705c9b45546478d8bcdbac2a89a90001
+    container: nhooyr/websocket-ci@sha256:ea94e078d2d589d654a2c759d952bf4199c754d80dadb20696dc3902359027cb
     steps:
       - uses: actions/checkout@v1
       - run: make fmt
   lint:
     runs-on: ubuntu-latest
-    container: nhooyr/websocket-ci@sha256:54a12b52be98d2d1588a054cfce35d17705c9b45546478d8bcdbac2a89a90001
+    container: nhooyr/websocket-ci@sha256:ea94e078d2d589d654a2c759d952bf4199c754d80dadb20696dc3902359027cb
     steps:
       - uses: actions/checkout@v1
       - run: make lint
   test:
     runs-on: ubuntu-latest
-    container: nhooyr/websocket-ci@sha256:54a12b52be98d2d1588a054cfce35d17705c9b45546478d8bcdbac2a89a90001
+    container: nhooyr/websocket-ci@sha256:ea94e078d2d589d654a2c759d952bf4199c754d80dadb20696dc3902359027cb
     steps:
       - uses: actions/checkout@v1
       - run: make test

ci/image/Dockerfile

@@ -10,7 +10,7 @@ ENV PATH=$GOPATH/bin:$PATH
 ENV GOFLAGS="-mod=readonly"
 ENV PAGER=cat
 ENV CI=true
-ENV MAKEFLAGS="-j --output-sync target"
+ENV MAKEFLAGS="--jobs=8 --output-sync=target"
 
 COPY ./ci/image/gitignore /root/.config/git/ignore
 RUN git config --system color.ui always

ci/wasmtest.sh

@@ -4,7 +4,7 @@ set -euo pipefail
 
 wsjstestOut="$(mktemp -d)/wsjstestOut"
 mkfifo "$wsjstestOut"
-timeout 15s wsjstest > "$wsjstestOut" &
+timeout 45s wsjstest > "$wsjstestOut" &
 wsjstestPID="$!"
 
 WS_ECHO_SERVER_URL="$(head -n 1 "$wsjstestOut")"

websocket_js.go

@@ -242,7 +242,7 @@ type DialOptions struct {
 func Dial(ctx context.Context, url string, opts *DialOptions) (*Conn, *http.Response, error) {
 	c, resp, err := dial(ctx, url, opts)
 	if err != nil {
-		return nil, resp, fmt.Errorf("failed to websocket dial: %w", err)
+		return nil, resp, fmt.Errorf("failed to websocket dial %q: %w", url, err)
 	}
 	return c, resp, nil
 }