add nginx integration test with shell script

.circleci/config.yml

@@ -54,6 +54,12 @@ jobs:
             sudo sysctl -w kern.maxfiles=655360 kern.maxfilesperproc=327680
             make test
             make lint
+      - run:
+          name: Execute integration tests
+          command: |
+            export PATH="`pwd`/cmake-3.4.1-Darwin-x86_64/CMake.app/Contents/bin:$PATH"
+            export PATH="$HOME/.cargo/bin:$PATH"
+            ./integration_tests/nginx/test.sh
 
   test-and-build:
     docker:

integration_tests/nginx/README.md

@@ -0,0 +1,12 @@
+# `nginx` integration test
+
+
+This starts wasmer with the nginx wasm file and serves an html
+file with some simple text to assert on. The test script does 
+the assertion.
+
+Run test with: 
+
+```
+> ./integration_tests/nginx/test.sh
+```

integration_tests/nginx/html/index.html

@@ -0,0 +1 @@
+wasmer

integration_tests/nginx/logs/nginx.pid

@@ -0,0 +1 @@
+26310

integration_tests/nginx/nginx.conf

@@ -0,0 +1,24 @@
+events {
+}
+
+# We need this for now, as we want to run nginx as a worker
+daemon off;
+master_process off;
+
+# We show the errors and info in stderr
+error_log /dev/stderr info;
+
+http {
+ # We show access in the stdout
+ access_log /dev/stdout;
+ server {
+    listen       8080;
+    server_name _;
+
+    location / {
+        # IMPORTANT: Replace the dir with the one you want to serve (that have an index.html file)
+        root ./html/;
+        index index.html;
+    }
+  }
+}

integration_tests/nginx/test.sh

@@ -0,0 +1,24 @@
+#! /bin/bash
+
+# Build the release and run nginx
+make release
+nohup ./target/release/wasmer run examples/nginx/nginx.wasm -- -p integration_tests/nginx/ -c nginx.conf &
+sleep 3s
+
+curl localhost:8080 > ./nginx.out
+
+
+if grep "wasmer" ./nginx.out
+then
+    echo "nginx integration test succeeded"
+    rm ./nohup.out
+    rm ./nginx.out
+    rm -rf ./integration_tests/nginx/*_temp
+    exit 0
+else
+    echo "nginx integration test failed"
+    rm ./nohup.out
+    rm ./nginx.out
+    rm -rf ./integration_tests/nginx/*_temp
+    exit -1
+fi