Add test to Travis

.travis.yml

@@ -3,11 +3,28 @@ language: node_js
 node_js:
   - "8"
 
-before_script:
+cache:
+  directories:
+    - $HOME/.cargo
+    - $TRAVIS_BUILD_DIR/target
+
+before_install:
   - curl https://sh.rustup.rs -sSf | sh -s -- -y
   - source $HOME/.cargo/env
-  - cargo install wasm-pack
 
-script:
-  - npm run build
-  - npm run publish
+stages:
+  - test
+  - name: deploy
+    if: branch = travis
+
+jobs:
+  include:
+    - stage: test
+      script:
+        - npm test
+    - stage: deploy
+      before_script:
+        - cargo install wasm-pack
+      script:
+        - npm run build
+        - npm run publish

README.md

@@ -1,5 +1,7 @@
 # WebAssembly vs Javascript
 
+[![Build Status](https://travis-ci.org/marcomontalbano/wa-vs-js-benchmark.svg?branch=master)](https://travis-ci.org/marcomontalbano/wa-vs-js-benchmark)
+
 *A comparison between WebAssembly and Javascript made for ~~studying~~ fun.*
 
 ## What's in the box

package.json

@@ -12,7 +12,7 @@
     "start": "webpack-dev-server --mode=development",
     "start:dist": "npx serve dist",
     "test:rs": "cargo build --verbose && cargo test --verbose",
-    "test": "npm run test",
+    "test": "npm run test:rs",
     "build:wasm": "wasm-pack build",
     "build:rs": "cargo build --release",
     "build:js": "webpack --mode=production --config webpack.config.js",