Ajout de tests.

package.json

@@ -20,5 +20,24 @@
     "tslint-defocus": "^2.0.6",
     "tslint-plugin-prettier": "^2.0.1",
     "typescript": ">=2.9.0"
+  },
+  "devDependencies": {
+    "@angular/compiler": "^8.2.9",
+    "@angular/core": "^8.2.9",
+    "codelyzer": "^5.0.0",
+    "prettier": "^1.15.0",
+    "prettier-tslint": "^0.4.2",
+    "rxjs": "^6",
+    "rxjs-tslint-rules": "^4.10",
+    "tslint": "^5.9.1",
+    "tslint-config-prettier": "^1.15.0",
+    "tslint-defocus": "^2.0.6",
+    "tslint-plugin-prettier": "^2.0.1",
+    "tsutils": "^3",
+    "typescript": ">=2.9.0"
+  },
+  "scripts": {
+    "test": "tslint -p tsconfig.json --print-config tsconfig.json >/dev/null",
+    "lint": "prettier --check '*.js' '*.json'"
   }
 }