Merge branch 'feature/unit-tests' into develop

Author: wimpyprogrammer

.gitignore

@@ -1,2 +1,3 @@
+coverage/
 lib/
 node_modules/

package.json

@@ -14,18 +14,37 @@
     "format": "prettier --write 'src/**'",
     "lint": "tsc; tslint -p ./",
     "precommit": "pretty-quick --staged",
-    "test": "echo \"Error: no test specified\" && exit 1"
+    "test": "jest --coverage"
+  },
+  "jest": {
+    "collectCoverageFrom": [
+      "**/src/**/?*.(js|ts)"
+    ],
+    "transform": {
+      "^.+\\.ts$": "ts-jest"
+    },
+    "testMatch": [
+      "**/src/**/?*.spec.(js|ts)"
+    ],
+    "moduleFileExtensions": [
+      "js",
+      "json",
+      "ts"
+    ]
   },
   "dependencies": {},
   "devDependencies": {
     "@babel/cli": "^7.0.0-beta.54",
     "@babel/core": "^7.0.0-beta.54",
     "@babel/preset-env": "^7.0.0-beta.54",
     "@babel/preset-typescript": "^7.0.0-beta.54",
+    "@types/jest": "^23.3.1",
     "husky": "^0.14.3",
+    "jest": "^23.4.1",
     "prettier": "^1.13.7",
     "pretty-quick": "^1.6.0",
     "rimraf": "^2.6.2",
+    "ts-jest": "^23.0.1",
     "tslint": "^5.11.0",
     "typescript": "^2.9.2"
   }