Cleanup: update deps, add linting, add tests, add pre-commit hooks (#10)

* add linting

* update deps

* add jest and tests

* add pre commit hooks

* fix linting errors

* add coverage dir to gitignore

Author: orteth01

.eslintrc

@@ -0,0 +1,18 @@
+{
+    "env": {
+        "node": true
+    },
+    "parser": "babel-eslint",
+    "ecmaFeatures": {
+        "jsx": true
+    },
+    "extends": "eslint-config-airbnb",
+    "rules": {
+        "import/no-extraneous-dependencies": 0,
+        "indent": ["error", 4],
+        "react/jsx-indent": ["error", 4],
+        "react/prop-types": 0,
+        "comma-dangle": ["error", "never"],
+        "class-methods-use-this": 0
+    }
+}

.gitignore

@@ -1,4 +1,5 @@
 node_modules
 .idea
 npm-debug.log
-lib/*.map
+lib/*.map
+coverage

.jestrc

@@ -0,0 +1,23 @@
+{
+    "resetMocks": true,
+    "roots": [
+        "<rootDir>/test",
+        "<rootDir>/src"
+    ],
+    "testRegex" : ".*test.jsx",
+    "testPathIgnorePatterns": [
+        "__snapshots__",
+        "<rootDir>/node_modules/"
+    ],
+
+    "coverageDirectory": "./coverage",
+    "coverageThreshold": {
+        "global": {
+            "lines": 93
+        }
+    },
+    "coverageReporters": [
+        "lcov",
+        "text"
+    ]
+}

.npmignore

@@ -1 +1,2 @@
 demo
+test